From 8b1043c1999100973fecad79c833467867c19cef Mon Sep 17 00:00:00 2001
From: Brian Cain <bcain@hashicorp.com>
Date: Fri, 4 Aug 2017 10:10:58 -0700
Subject: [PATCH] Remove stub methods and replace with allows for rpsec 3

---
 .../commands/list-commands/command_test.rb    |  2 +-
 .../plugins/commands/package/command_test.rb  |  2 +-
 .../plugin/action/expunge_plugins_test.rb     |  2 +-
 .../plugin/action/install_gem_test.rb         |  4 +-
 .../plugin/action/plugin_exists_check_test.rb |  6 +-
 .../plugin/action/uninstall_plugin_test.rb    |  2 +-
 .../plugin/action/update_gems_test.rb         |  4 +-
 .../plugins/commands/push/command_test.rb     |  2 +-
 .../commands/ssh_config/command_test.rb       |  2 +-
 test/unit/plugins/commands/up/command_test.rb |  2 +-
 .../communicators/winrm/helper_test.rb        | 47 ++++-----
 .../smartos/cap/change_host_name_test.rb      |  4 +-
 .../smartos/cap/configure_networks_test.rb    |  4 +-
 .../plugins/guests/smartos/cap/halt_test.rb   |  4 +-
 .../smartos/cap/insert_public_key_test.rb     |  2 +-
 .../guests/smartos/cap/mount_nfs_test.rb      |  4 +-
 .../plugins/guests/smartos/cap/rsync_test.rb  |  4 +-
 test/unit/plugins/kernel_v2/config/vm_test.rb |  8 +-
 .../providers/docker/action/create_test.rb    |  2 +-
 .../providers/docker/command/exec_test.rb     |  2 +-
 .../plugins/providers/docker/config_test.rb   |  4 +-
 .../plugins/providers/docker/driver_test.rb   | 54 +++++------
 .../providers/docker/synced_folder_test.rb    |  6 +-
 .../plugins/providers/hyperv/provider_test.rb | 38 ++++----
 .../action/network_fix_ipv6_test.rb           |  4 +-
 .../virtualbox/action/network_test.rb         |  2 +-
 .../action/prepare_nfs_settings_test.rb       | 12 +--
 .../action/prepare_nfs_valid_ids_test.rb      |  6 +-
 .../plugins/providers/virtualbox/cap_test.rb  |  4 +-
 .../providers/virtualbox/config_test.rb       |  6 +-
 .../virtualbox/synced_folder_test.rb          | 10 +-
 .../provisioners/docker/provisioner_test.rb   | 26 ++---
 .../provisioners/file/provisioner_test.rb     | 26 ++---
 .../provisioners/salt/provisioner_test.rb     | 10 +-
 .../provisioners/shell/provisioner_test.rb    |  8 +-
 .../synced_folders/nfs/action_cleanup_test.rb |  2 +-
 .../rsync/command/rsync_auto_test.rb          | 22 ++---
 .../rsync/command/rsync_test.rb               | 10 +-
 .../synced_folders/rsync/helper_test.rb       | 22 ++---
 .../rsync/synced_folder_test.rb               |  6 +-
 .../vagrant/action/builtin/box_add_test.rb    |  8 +-
 .../action/builtin/box_check_outdated_test.rb | 10 +-
 .../vagrant/action/builtin/box_remove_test.rb | 30 +++---
 .../action/builtin/graceful_halt_test.rb      |  4 +-
 .../vagrant/action/builtin/handle_box_test.rb |  8 +-
 .../handle_forwarded_port_collisions_test.rb  |  2 +-
 .../vagrant/action/builtin/is_state_test.rb   |  6 +-
 .../builtin/mixin_synced_folders_test.rb      | 10 +-
 .../vagrant/action/builtin/provision_test.rb  |  2 +-
 .../builtin/provisioner_cleanup_test.rb       |  2 +-
 .../builtin/synced_folder_cleanup_test.rb     |  6 +-
 .../action/builtin/synced_folders_test.rb     |  6 +-
 test/unit/vagrant/batch_action_test.rb        |  4 +-
 test/unit/vagrant/box_test.rb                 | 10 +-
 test/unit/vagrant/cli_test.rb                 |  2 +-
 test/unit/vagrant/environment_test.rb         | 15 +--
 test/unit/vagrant/guest_test.rb               | 14 +--
 test/unit/vagrant/machine_test.rb             | 18 ++--
 test/unit/vagrant/plugin/manager_test.rb      |  6 +-
 test/unit/vagrant/plugin/v1/command_test.rb   | 17 ++--
 test/unit/vagrant/plugin/v2/command_test.rb   | 97 +++++++++++--------
 test/unit/vagrant/plugin/v2/plugin_test.rb    |  3 +-
 test/unit/vagrant/plugin/v2/provider_test.rb  |  2 +-
 test/unit/vagrant/shared_helpers_test.rb      |  4 +-
 test/unit/vagrant/ui_test.rb                  |  2 +-
 test/unit/vagrant/util/downloader_test.rb     |  6 +-
 test/unit/vagrant_test.rb                     |  4 +-
 67 files changed, 350 insertions(+), 335 deletions(-)

diff --git a/test/unit/plugins/commands/list-commands/command_test.rb b/test/unit/plugins/commands/list-commands/command_test.rb
index 8e42f17c9..e4c4ee0c8 100644
--- a/test/unit/plugins/commands/list-commands/command_test.rb
+++ b/test/unit/plugins/commands/list-commands/command_test.rb
@@ -19,7 +19,7 @@ describe VagrantPlugins::CommandListCommands::Command do
   subject { described_class.new(argv, iso_env) }
 
   before do
-    Vagrant.plugin("2").manager.stub(commands: commands)
+    allow(Vagrant.plugin("2").manager).to receive(:commands).and_return(commands)
   end
 
   describe "execute" do
diff --git a/test/unit/plugins/commands/package/command_test.rb b/test/unit/plugins/commands/package/command_test.rb
index 7ca9fb1be..7888c8860 100644
--- a/test/unit/plugins/commands/package/command_test.rb
+++ b/test/unit/plugins/commands/package/command_test.rb
@@ -25,7 +25,7 @@ describe VagrantPlugins::CommandPackage::Command do
   let(:action_runner) { double("action_runner") }
 
   before do
-    iso_env.stub(action_runner: action_runner)
+    allow(iso_env).to receive(:action_runner).and_return(action_runner)
   end
 
   describe "#execute" do
diff --git a/test/unit/plugins/commands/plugin/action/expunge_plugins_test.rb b/test/unit/plugins/commands/plugin/action/expunge_plugins_test.rb
index de0d976de..a4b0a4644 100644
--- a/test/unit/plugins/commands/plugin/action/expunge_plugins_test.rb
+++ b/test/unit/plugins/commands/plugin/action/expunge_plugins_test.rb
@@ -27,7 +27,7 @@ describe VagrantPlugins::CommandPlugin::Action::ExpungePlugins do
   subject { described_class.new(app, env) }
 
   before do
-    Vagrant::Plugin::Manager.stub(instance: manager)
+    allow(Vagrant::Plugin::Manager).to receive(:instance).and_return(manager)
   end
 
   describe "#call" do
diff --git a/test/unit/plugins/commands/plugin/action/install_gem_test.rb b/test/unit/plugins/commands/plugin/action/install_gem_test.rb
index 2e3ecc1c6..908473577 100644
--- a/test/unit/plugins/commands/plugin/action/install_gem_test.rb
+++ b/test/unit/plugins/commands/plugin/action/install_gem_test.rb
@@ -11,7 +11,7 @@ describe VagrantPlugins::CommandPlugin::Action::InstallGem do
   subject { described_class.new(app, env) }
 
   before do
-    Vagrant::Plugin::Manager.stub(instance: manager)
+    allow(Vagrant::Plugin::Manager).to receive(:instance).and_return(manager)
   end
 
   describe "#call" do
@@ -75,7 +75,7 @@ describe VagrantPlugins::CommandPlugin::Action::InstallGem do
       before do
         spec = Gem::Specification.new
         spec.name = "foo"
-        manager.stub(install_plugin: spec)
+        allow(manager).to receive(:install_plugin).and_return(spec)
 
         env[:plugin_name] = "foo"
         subject.call(env)
diff --git a/test/unit/plugins/commands/plugin/action/plugin_exists_check_test.rb b/test/unit/plugins/commands/plugin/action/plugin_exists_check_test.rb
index cf157f92f..d332a84d4 100644
--- a/test/unit/plugins/commands/plugin/action/plugin_exists_check_test.rb
+++ b/test/unit/plugins/commands/plugin/action/plugin_exists_check_test.rb
@@ -9,11 +9,11 @@ describe VagrantPlugins::CommandPlugin::Action::PluginExistsCheck do
   subject { described_class.new(app, env) }
 
   before do
-    Vagrant::Plugin::Manager.stub(instance: manager)
+    allow(Vagrant::Plugin::Manager).to receive(:instance).and_return(manager)
   end
 
   it "should raise an exception if the plugin doesn't exist" do
-    manager.stub(installed_plugins: { "foo" => {} })
+    allow(manager).to receive(:installed_plugins).and_return({ "foo" => {} })
     expect(app).not_to receive(:call)
 
     env[:plugin_name] = "bar"
@@ -22,7 +22,7 @@ describe VagrantPlugins::CommandPlugin::Action::PluginExistsCheck do
   end
 
   it "should call the app if the plugin is installed" do
-    manager.stub(installed_plugins: { "bar" => {} })
+    allow(manager).to receive(:installed_plugins).and_return({ "bar" => {} })
     expect(app).to receive(:call).once.with(env)
 
     env[:plugin_name] = "bar"
diff --git a/test/unit/plugins/commands/plugin/action/uninstall_plugin_test.rb b/test/unit/plugins/commands/plugin/action/uninstall_plugin_test.rb
index 13d9dc134..757d75be0 100644
--- a/test/unit/plugins/commands/plugin/action/uninstall_plugin_test.rb
+++ b/test/unit/plugins/commands/plugin/action/uninstall_plugin_test.rb
@@ -11,7 +11,7 @@ describe VagrantPlugins::CommandPlugin::Action::UninstallPlugin do
   subject { described_class.new(app, env) }
 
   before do
-    Vagrant::Plugin::Manager.stub(instance: manager)
+    allow(Vagrant::Plugin::Manager).to receive(:instance).and_return(manager)
   end
 
   it "uninstalls the specified plugin" do
diff --git a/test/unit/plugins/commands/plugin/action/update_gems_test.rb b/test/unit/plugins/commands/plugin/action/update_gems_test.rb
index a3b4661c2..37aa58557 100644
--- a/test/unit/plugins/commands/plugin/action/update_gems_test.rb
+++ b/test/unit/plugins/commands/plugin/action/update_gems_test.rb
@@ -11,8 +11,8 @@ describe VagrantPlugins::CommandPlugin::Action::UpdateGems do
   subject { described_class.new(app, env) }
 
   before do
-    Vagrant::Plugin::Manager.stub(instance: manager)
-    manager.stub(installed_specs: [])
+    allow(Vagrant::Plugin::Manager).to receive(:instance).and_return(manager)
+    allow(manager).to receive(:installed_specs).and_return([])
   end
 
   describe "#call" do
diff --git a/test/unit/plugins/commands/push/command_test.rb b/test/unit/plugins/commands/push/command_test.rb
index a97f4caba..bc562306b 100644
--- a/test/unit/plugins/commands/push/command_test.rb
+++ b/test/unit/plugins/commands/push/command_test.rb
@@ -22,7 +22,7 @@ describe VagrantPlugins::CommandPush::Command do
   subject { described_class.new(argv, env) }
 
   before do
-    Vagrant.plugin("2").manager.stub(pushes: pushes)
+    allow(Vagrant.plugin("2").manager).to receive(:pushes).and_return(pushes)
   end
 
   describe "#execute" do
diff --git a/test/unit/plugins/commands/ssh_config/command_test.rb b/test/unit/plugins/commands/ssh_config/command_test.rb
index ba76d5de3..27f0844b4 100644
--- a/test/unit/plugins/commands/ssh_config/command_test.rb
+++ b/test/unit/plugins/commands/ssh_config/command_test.rb
@@ -32,7 +32,7 @@ describe VagrantPlugins::CommandSSHConfig::Command do
   subject { described_class.new(argv, iso_env) }
 
   before do
-    machine.stub(ssh_info: ssh_info)
+    allow(machine).to receive(:ssh_info).and_return(ssh_info)
     allow(subject).to receive(:with_target_vms) { |&block| block.call machine }
   end
 
diff --git a/test/unit/plugins/commands/up/command_test.rb b/test/unit/plugins/commands/up/command_test.rb
index 2d744eea1..cd8c56b7b 100644
--- a/test/unit/plugins/commands/up/command_test.rb
+++ b/test/unit/plugins/commands/up/command_test.rb
@@ -18,7 +18,7 @@ describe VagrantPlugins::CommandUp::Command do
   let(:action_runner) { double("action_runner") }
 
   before do
-    iso_env.stub(action_runner: action_runner)
+    allow(iso_env).to receive(:action_runner).and_return(action_runner)
   end
 
   context "with no argument" do
diff --git a/test/unit/plugins/communicators/winrm/helper_test.rb b/test/unit/plugins/communicators/winrm/helper_test.rb
index 5768c720e..80c7f8568 100644
--- a/test/unit/plugins/communicators/winrm/helper_test.rb
+++ b/test/unit/plugins/communicators/winrm/helper_test.rb
@@ -27,24 +27,24 @@ describe VagrantPlugins::CommunicatorWinRM::Helper do
     end
 
     it "returns the SSH info host if available" do
-      machine.stub(ssh_info: { host: "bar" })
+      allow(machine).to receive(:ssh_info).and_return({ host: "bar" })
       expect(subject.winrm_address(machine)).to eq("bar")
     end
 
     it "raise an exception if it can't detect a host" do
-      machine.stub(ssh_info: nil)
+      allow(machine).to receive(:ssh_info).and_return(nil)
       expect { subject.winrm_address(machine) }.
         to raise_error(VagrantPlugins::CommunicatorWinRM::Errors::WinRMNotReady)
     end
 
     it "raise an exception if it detects an empty host ip" do
-      machine.stub(ssh_info: { host: "" })
+      allow(machine).to receive(:ssh_info).and_return({ host: "" })
       expect { subject.winrm_address(machine) }.
         to raise_error(VagrantPlugins::CommunicatorWinRM::Errors::WinRMNotReady)
     end
 
     it "raise a WinRMNotReady exception if it detects an unset host ip" do
-      machine.stub(ssh_info: { host: nil })
+      allow(machine).to receive(:ssh_info).and_return({ host: nil })
       expect { subject.winrm_address(machine) }.
         to raise_error(VagrantPlugins::CommunicatorWinRM::Errors::WinRMNotReady)
     end
@@ -52,15 +52,15 @@ describe VagrantPlugins::CommunicatorWinRM::Helper do
 
   describe ".winrm_info" do
     before do
-      machine.provider.stub(:capability?).
-        with(:winrm_info).and_return(false)
-      subject.stub(winrm_address: nil)
-      subject.stub(winrm_port: nil)
+      allow(machine.provider).to receive(:capability?)
+        .with(:winrm_info).and_return(false)
+      allow(subject).to receive(:winrm_address).and_return(nil)
+      allow(subject).to receive(:winrm_port).and_return(nil)
     end
 
     it "returns default info if no capability" do
-      subject.stub(winrm_address: "bar")
-      subject.stub(winrm_port: 45)
+      allow(subject).to receive(:winrm_address).and_return("bar")
+      allow(subject).to receive(:winrm_port).and_return(45)
 
       result = subject.winrm_info(machine)
       expect(result[:host]).to eq("bar")
@@ -68,18 +68,19 @@ describe VagrantPlugins::CommunicatorWinRM::Helper do
     end
 
     it "raises an exception if capability returns nil" do
-      machine.provider.stub(:capability?).
-        with(:winrm_info).and_return(true)
-      machine.provider.stub(:capability).with(:winrm_info).and_return(nil)
+      allow(machine.provider).to receive(:capability?)
+        .with(:winrm_info).and_return(true)
+      allow(machine.provider).to receive(:capability)
+        .with(:winrm_info).and_return(nil)
 
       expect { subject.winrm_info(machine) }.
         to raise_error(VagrantPlugins::CommunicatorWinRM::Errors::WinRMNotReady)
     end
 
     it "returns the proper information if set" do
-      machine.provider.stub(:capability?).
-        with(:winrm_info).and_return(true)
-      machine.provider.stub(:capability).with(:winrm_info).and_return({
+      allow(machine.provider).to receive(:capability?)
+        .with(:winrm_info).and_return(true)
+      allow(machine.provider).to receive(:capability).with(:winrm_info).and_return({
         host: "foo",
         port: 12,
       })
@@ -90,12 +91,12 @@ describe VagrantPlugins::CommunicatorWinRM::Helper do
     end
 
     it "defaults information if capability doesn't set it" do
-      machine.provider.stub(:capability?).
-        with(:winrm_info).and_return(true)
-      machine.provider.stub(:capability).with(:winrm_info).and_return({})
+      allow(machine.provider).to receive(:capability?)
+        .with(:winrm_info).and_return(true)
+      allow(machine.provider).to receive(:capability).with(:winrm_info).and_return({})
 
-      subject.stub(winrm_address: "bar")
-      subject.stub(winrm_port: 45)
+      allow(subject).to receive(:winrm_address).and_return("bar")
+      allow(subject).to receive(:winrm_port).and_return(45)
 
       result = subject.winrm_info(machine)
       expect(result[:host]).to eq("bar")
@@ -132,8 +133,8 @@ describe VagrantPlugins::CommunicatorWinRM::Helper do
       machine.config.winrm.guest_port = 2222
       machine.config.vm.network "forwarded_port", host: 1234, guest: 2222
 
-      machine.provider.stub(:capability?).with(:forwarded_ports).and_return(true)
-      machine.provider.stub(:capability).with(:forwarded_ports).and_return({
+      allow(machine.provider).to receive(:capability?).with(:forwarded_ports).and_return(true)
+      allow(machine.provider).to receive(:capability).with(:forwarded_ports).and_return({
         1234 => 4567,
         2456 => 2222,
       })
diff --git a/test/unit/plugins/guests/smartos/cap/change_host_name_test.rb b/test/unit/plugins/guests/smartos/cap/change_host_name_test.rb
index c51dfb9eb..8a772503c 100644
--- a/test/unit/plugins/guests/smartos/cap/change_host_name_test.rb
+++ b/test/unit/plugins/guests/smartos/cap/change_host_name_test.rb
@@ -12,8 +12,8 @@ describe "VagrantPlugins::GuestSmartos::Cap::ChangeHostName" do
   let(:config) { double("config", smartos: VagrantPlugins::GuestSmartos::Config.new) }
 
   before do
-    machine.stub(:communicate).and_return(comm)
-    machine.stub(:config).and_return(config)
+    allow(machine).to receive(:communicate).and_return(comm)
+    allow(machine).to receive(:config).and_return(config)
   end
 
   after do
diff --git a/test/unit/plugins/guests/smartos/cap/configure_networks_test.rb b/test/unit/plugins/guests/smartos/cap/configure_networks_test.rb
index 7d6312a24..56bd056f1 100644
--- a/test/unit/plugins/guests/smartos/cap/configure_networks_test.rb
+++ b/test/unit/plugins/guests/smartos/cap/configure_networks_test.rb
@@ -7,8 +7,8 @@ describe "VagrantPlugins::VagrantPlugins::Cap::ConfigureNetworks" do
   let(:communicator) { VagrantTests::DummyCommunicator::Communicator.new(machine) }
 
   before do
-    machine.stub(:communicate).and_return(communicator)
-    machine.stub(:config).and_return(config)
+    allow(machine).to receive(:communicate).and_return(communicator)
+    allow(machine).to receive(:config).and_return(config)
   end
 
   after do
diff --git a/test/unit/plugins/guests/smartos/cap/halt_test.rb b/test/unit/plugins/guests/smartos/cap/halt_test.rb
index 08b563c39..b039a6899 100644
--- a/test/unit/plugins/guests/smartos/cap/halt_test.rb
+++ b/test/unit/plugins/guests/smartos/cap/halt_test.rb
@@ -8,8 +8,8 @@ describe "VagrantPlugins::GuestSmartos::Cap::Halt" do
   let(:shutdown_command){ "pfexec /usr/sbin/poweroff" }
 
   before do
-    machine.stub(:communicate).and_return(communicator)
-    machine.stub(:config).and_return(config)
+    allow(machine).to receive(:communicate).and_return(communicator)
+    allow(machine).to receive(:config).and_return(config)
   end
 
   after do
diff --git a/test/unit/plugins/guests/smartos/cap/insert_public_key_test.rb b/test/unit/plugins/guests/smartos/cap/insert_public_key_test.rb
index b404412ab..917f0baa9 100644
--- a/test/unit/plugins/guests/smartos/cap/insert_public_key_test.rb
+++ b/test/unit/plugins/guests/smartos/cap/insert_public_key_test.rb
@@ -11,7 +11,7 @@ describe "VagrantPlugins::GuestSmartos::Cap::InsertPublicKey" do
   let(:comm) { VagrantTests::DummyCommunicator::Communicator.new(machine) }
 
   before do
-    machine.stub(:communicate).and_return(comm)
+    allow(machine).to receive(:communicate).and_return(comm)
   end
 
   after do
diff --git a/test/unit/plugins/guests/smartos/cap/mount_nfs_test.rb b/test/unit/plugins/guests/smartos/cap/mount_nfs_test.rb
index 5dee28a09..865ed6d54 100644
--- a/test/unit/plugins/guests/smartos/cap/mount_nfs_test.rb
+++ b/test/unit/plugins/guests/smartos/cap/mount_nfs_test.rb
@@ -13,8 +13,8 @@ describe "VagrantPlugins::GuestSmartos::Cap::MountNFS" do
   let(:config) { double("config", smartos: VagrantPlugins::GuestSmartos::Config.new) }
 
   before do
-    machine.stub(:communicate).and_return(comm)
-    machine.stub(:config).and_return(config)
+    allow(machine).to receive(:communicate).and_return(comm)
+    allow(machine).to receive(:config).and_return(config)
   end
 
   after do
diff --git a/test/unit/plugins/guests/smartos/cap/rsync_test.rb b/test/unit/plugins/guests/smartos/cap/rsync_test.rb
index f5e82d9f8..544d73898 100644
--- a/test/unit/plugins/guests/smartos/cap/rsync_test.rb
+++ b/test/unit/plugins/guests/smartos/cap/rsync_test.rb
@@ -7,8 +7,8 @@ describe "VagrantPlugins::VagrantPlugins::Cap::Rsync" do
   let(:communicator) { VagrantTests::DummyCommunicator::Communicator.new(machine) }
 
   before do
-    machine.stub(:communicate).and_return(communicator)
-    machine.stub(:config).and_return(config)
+    allow(machine).to receive(:communicate).and_return(communicator)
+    allow(machine).to receive(:config).and_return(config)
   end
 
   after do
diff --git a/test/unit/plugins/kernel_v2/config/vm_test.rb b/test/unit/plugins/kernel_v2/config/vm_test.rb
index e629ab974..7d8e05f5a 100644
--- a/test/unit/plugins/kernel_v2/config/vm_test.rb
+++ b/test/unit/plugins/kernel_v2/config/vm_test.rb
@@ -32,10 +32,10 @@ describe VagrantPlugins::Kernel_V2::VMConfig do
 
   before do
     env = double("env")
-    env.stub(root_path: nil)
-    machine.stub(env: env)
-    machine.stub(provider_config: nil)
-    machine.stub(provider_options: {})
+    allow(env).to receive(:root_path).and_return(nil)
+    allow(machine).to receive(:env).and_return(env)
+    allow(machine).to receive(:provider_config).and_return(nil)
+    allow(machine).to receive(:provider_options).and_return({})
 
     subject.box = "foo"
   end
diff --git a/test/unit/plugins/providers/docker/action/create_test.rb b/test/unit/plugins/providers/docker/action/create_test.rb
index 2b2a9c669..4975180e4 100644
--- a/test/unit/plugins/providers/docker/action/create_test.rb
+++ b/test/unit/plugins/providers/docker/action/create_test.rb
@@ -15,7 +15,7 @@ describe VagrantPlugins::DockerProvider::Action::Create do
 
   let(:machine) do
     iso_env.machine(iso_env.machine_names[0], :virtualbox).tap do |m|
-      m.provider.stub(driver: driver)
+      allow(m.provider).to receive(:driver).and_return(driver)
     end
   end
 
diff --git a/test/unit/plugins/providers/docker/command/exec_test.rb b/test/unit/plugins/providers/docker/command/exec_test.rb
index 6cf94c3b0..35a0b6802 100644
--- a/test/unit/plugins/providers/docker/command/exec_test.rb
+++ b/test/unit/plugins/providers/docker/command/exec_test.rb
@@ -22,7 +22,7 @@ describe VagrantPlugins::DockerProvider::Command::Exec do
   end
 
   before do
-    Vagrant.plugin("2").manager.stub(commands: {})
+    allow(Vagrant.plugin("2").manager).to receive(:commands).and_return({})
     allow(subject).to receive(:exec_command)
   end
 
diff --git a/test/unit/plugins/providers/docker/config_test.rb b/test/unit/plugins/providers/docker/config_test.rb
index 62258aed2..eb3c5729a 100644
--- a/test/unit/plugins/providers/docker/config_test.rb
+++ b/test/unit/plugins/providers/docker/config_test.rb
@@ -63,8 +63,8 @@ describe VagrantPlugins::DockerProvider::Config do
 
   before do
     # By default lets be Linux for validations
-    Vagrant::Util::Platform.stub(linux: true)
-    Vagrant::Util::Platform.stub(linux?: true)
+    allow(Vagrant::Util::Platform).to receive(:linux).and_return(true)
+    allow(Vagrant::Util::Platform).to receive(:linux?).and_return(true)
   end
 
   it "should be invalid if both build dir and image are set" do
diff --git a/test/unit/plugins/providers/docker/driver_test.rb b/test/unit/plugins/providers/docker/driver_test.rb
index 189b06164..0d12b4971 100644
--- a/test/unit/plugins/providers/docker/driver_test.rb
+++ b/test/unit/plugins/providers/docker/driver_test.rb
@@ -7,7 +7,7 @@ describe VagrantPlugins::DockerProvider::Driver do
   let(:cid)          { 'side-1-song-10' }
 
   before do
-    subject.stub(:execute) { |*args| @cmd = args.join(' ') }
+    allow(subject).to receive(:execute) { |*args| @cmd = args.join(' ') }
   end
 
   describe '#create' do
@@ -74,19 +74,19 @@ describe VagrantPlugins::DockerProvider::Driver do
     end
 
     context 'when container exists' do
-      before { subject.stub(execute: "foo\n#{cid}\nbar") }
+      before { allow(subject).to receive(:execute).and_return("foo\n#{cid}\nbar") }
       it { expect(result).to be_truthy }
     end
 
     context 'when container does not exist' do
-      before { subject.stub(execute: "foo\n#{cid}extra\nbar") }
+      before { allow(subject).to receive(:execute).and_return("foo\n#{cid}extra\nbar") }
       it { expect(result).to be_falsey }
     end
   end
 
   describe '#pull' do
     it 'should pull images' do
-      subject.should_receive(:execute).with('docker', 'pull', 'foo')
+      expect(subject).to receive(:execute).with('docker', 'pull', 'foo')
       subject.pull('foo')
     end
   end
@@ -101,43 +101,43 @@ describe VagrantPlugins::DockerProvider::Driver do
     end
 
     context 'when container exists' do
-      before { subject.stub(execute: "foo\n#{cid}\nbar") }
+      before { allow(subject).to receive(:execute).and_return("foo\n#{cid}\nbar") }
       it { expect(result).to be_truthy }
     end
 
     context 'when container does not exist' do
-      before { subject.stub(execute: "foo\n#{cid}extra\nbar") }
+      before { allow(subject).to receive(:execute).and_return("foo\n#{cid}extra\nbar") }
       it { expect(result).to be_falsey }
     end
   end
 
   describe '#privileged?' do
     it 'identifies privileged containers' do
-      subject.stub(inspect_container: {'HostConfig' => {"Privileged" => true}})
+      allow(subject).to receive(:inspect_container).and_return({'HostConfig' => {"Privileged" => true}})
       expect(subject).to be_privileged(cid)
     end
 
     it 'identifies unprivileged containers' do
-      subject.stub(inspect_container: {'HostConfig' => {"Privileged" => false}})
+      allow(subject).to receive(:inspect_container).and_return({'HostConfig' => {"Privileged" => false}})
       expect(subject).to_not be_privileged(cid)
     end
   end
 
   describe '#start' do
     context 'when container is running' do
-      before { subject.stub(running?: true) }
+      before { allow(subject).to receive(:running?).and_return(true) }
 
       it 'does not start the container' do
-        subject.should_not_receive(:execute).with('docker', 'start', cid)
+        expect(subject).to_not receive(:execute).with('docker', 'start', cid)
         subject.start(cid)
       end
     end
 
     context 'when container is not running' do
-      before { subject.stub(running?: false) }
+      before { allow(subject).to receive(:running?).and_return(false) }
 
       it 'starts the container' do
-        subject.should_receive(:execute).with('docker', 'start', cid)
+        expect(subject).to receive(:execute).with('docker', 'start', cid)
         subject.start(cid)
       end
     end
@@ -145,24 +145,24 @@ describe VagrantPlugins::DockerProvider::Driver do
 
   describe '#stop' do
     context 'when container is running' do
-      before { subject.stub(running?: true) }
+      before { allow(subject).to receive(:running?).and_return(true) }
 
       it 'stops the container' do
-        subject.should_receive(:execute).with('docker', 'stop', '-t', '1', cid)
+        expect(subject).to receive(:execute).with('docker', 'stop', '-t', '1', cid)
         subject.stop(cid, 1)
       end
 
       it "stops the container with the set timeout" do
-        subject.should_receive(:execute).with('docker', 'stop', '-t', '5', cid)
+        expect(subject).to receive(:execute).with('docker', 'stop', '-t', '5', cid)
         subject.stop(cid, 5)
       end
     end
 
     context 'when container is not running' do
-      before { subject.stub(running?: false) }
+      before { allow(subject).to receive(:running?).and_return(false) }
 
       it 'does not stop container' do
-        subject.should_not_receive(:execute).with('docker', 'stop', '-t', '1', cid)
+        expect(subject).to_not receive(:execute).with('docker', 'stop', '-t', '1', cid)
         subject.stop(cid, 1)
       end
     end
@@ -170,19 +170,19 @@ describe VagrantPlugins::DockerProvider::Driver do
 
   describe '#rm' do
     context 'when container has been created' do
-      before { subject.stub(created?: true) }
+      before { allow(subject).to receive(:created?).and_return(true) }
 
       it 'removes the container' do
-        subject.should_receive(:execute).with('docker', 'rm', '-f', '-v', cid)
+        expect(subject).to receive(:execute).with('docker', 'rm', '-f', '-v', cid)
         subject.rm(cid)
       end
     end
 
     context 'when container has not been created' do
-      before { subject.stub(created?: false) }
+      before { allow(subject).to receive(:created?).and_return(false) }
 
       it 'does not attempt to remove the container' do
-        subject.should_not_receive(:execute).with('docker', 'rm', '-f', '-v', cid)
+        expect(subject).to_not receive(:execute).with('docker', 'rm', '-f', '-v', cid)
         subject.rm(cid)
       end
     end
@@ -191,10 +191,10 @@ describe VagrantPlugins::DockerProvider::Driver do
   describe '#inspect_container' do
     let(:data) { '[{"json": "value"}]' }
 
-    before { subject.stub(execute: data) }
+    before { allow(subject).to receive(:execute).and_return(data) }
 
     it 'inspects the container' do
-      subject.should_receive(:execute).with('docker', 'inspect', cid)
+      expect(subject).to receive(:execute).with('docker', 'inspect', cid)
       subject.inspect_container(cid)
     end
 
@@ -206,10 +206,10 @@ describe VagrantPlugins::DockerProvider::Driver do
   describe '#all_containers' do
     let(:containers) { "container1\ncontainer2" }
 
-    before { subject.stub(execute: containers) }
+    before { allow(subject).to receive(:execute).and_return(containers) }
 
     it 'returns an array of all known containers' do
-      subject.should_receive(:execute).with('docker', 'ps', '-a', '-q', '--no-trunc')
+      expect(subject).to receive(:execute).with('docker', 'ps', '-a', '-q', '--no-trunc')
       expect(subject.all_containers).to eq(['container1', 'container2'])
     end
   end
@@ -217,10 +217,10 @@ describe VagrantPlugins::DockerProvider::Driver do
   describe '#docker_bridge_ip' do
     let(:containers) { " inet 123.456.789.012/16 " }
 
-    before { subject.stub(execute: containers) }
+    before { allow(subject).to receive(:execute).and_return(containers) }
 
     it 'returns an array of all known containers' do
-      subject.should_receive(:execute).with('/sbin/ip', '-4', 'addr', 'show', 'scope', 'global', 'docker0')
+      expect(subject).to receive(:execute).with('/sbin/ip', '-4', 'addr', 'show', 'scope', 'global', 'docker0')
       expect(subject.docker_bridge_ip).to eq('123.456.789.012')
     end
   end
diff --git a/test/unit/plugins/providers/docker/synced_folder_test.rb b/test/unit/plugins/providers/docker/synced_folder_test.rb
index dfbcaed0c..58584312f 100644
--- a/test/unit/plugins/providers/docker/synced_folder_test.rb
+++ b/test/unit/plugins/providers/docker/synced_folder_test.rb
@@ -9,7 +9,7 @@ describe VagrantPlugins::DockerProvider::SyncedFolder do
     let(:machine) { double("machine") }
 
     before do
-      machine.stub(provider_name: :docker)
+      allow(machine).to receive(:provider_name).and_return(:docker)
     end
 
     it "is usable" do
@@ -17,12 +17,12 @@ describe VagrantPlugins::DockerProvider::SyncedFolder do
     end
 
     it "is not usable if provider isn't docker" do
-      machine.stub(provider_name: :virtualbox)
+      allow(machine).to receive(:provider_name).and_return(:virtualbox)
       expect(subject).to_not be_usable(machine)
     end
 
     it "raises an error if bad provider if specified" do
-      machine.stub(provider_name: :virtualbox)
+      allow(machine).to receive(:provider_name).and_return(:virtualbox)
       expect { subject.usable?(machine, true) }.
         to raise_error(VagrantPlugins::DockerProvider::Errors::SyncedFolderNonDocker)
     end
diff --git a/test/unit/plugins/providers/hyperv/provider_test.rb b/test/unit/plugins/providers/hyperv/provider_test.rb
index 2a895706d..bac4512e6 100644
--- a/test/unit/plugins/providers/hyperv/provider_test.rb
+++ b/test/unit/plugins/providers/hyperv/provider_test.rb
@@ -12,63 +12,63 @@ describe VagrantPlugins::HyperV::Provider do
   before do
     stub_const("Vagrant::Util::Platform", platform)
     stub_const("Vagrant::Util::PowerShell", powershell)
-    machine.stub(id: "foo")
-    platform.stub(windows?: true)
-    platform.stub(windows_admin?: true)
-    platform.stub(windows_hyperv_admin?: true)
-    powershell.stub(available?: true)
+    allow(machine).to receive(:id).and_return("foo")
+    allow(platform).to receive(:windows?).and_return(true)
+    allow(platform).to receive(:windows_admin?).and_return(true)
+    allow(platform).to receive(:windows_hyperv_admin?).and_return(true)
+    allow(powershell).to receive(:available?).and_return(true)
   end
 
   describe ".usable?" do
     subject { described_class }
 
     it "returns false if not windows" do
-      platform.stub(windows?: false)
+      allow(platform).to receive(:windows?).and_return(false)
       expect(subject).to_not be_usable
     end
 
     it "returns false if neither an admin nor a hyper-v admin" do
-      platform.stub(windows_admin?: false)
-      platform.stub(windows_hyperv_admin?: false)
+      allow(platform).to receive(:windows_admin?).and_return(false)
+      allow(platform).to receive(:windows_hyperv_admin?).and_return(false)
       expect(subject).to_not be_usable
     end
 
     it "returns true if not an admin but is a hyper-v admin" do
-      platform.stub(windows_admin?: false)
-      platform.stub(windows_hyperv_admin?: true)
+      allow(platform).to receive(:windows_admin?).and_return(false)
+      allow(platform).to receive(:windows_hyperv_admin?).and_return(true)
       expect(subject).to be_usable
     end
 
     it "returns false if powershell is not available" do
-      powershell.stub(available?: false)
+      allow(powershell).to receive(:available?).and_return(false)
       expect(subject).to_not be_usable
     end
 
     it "raises an exception if not windows" do
-      platform.stub(windows?: false)
+      allow(platform).to receive(:windows?).and_return(false)
 
       expect { subject.usable?(true) }.
         to raise_error(VagrantPlugins::HyperV::Errors::WindowsRequired)
     end
 
     it "raises an exception if neither an admin nor a hyper-v admin" do
-      platform.stub(windows_admin?: false)
-      platform.stub(windows_hyperv_admin?: false)
+      allow(platform).to receive(:windows_admin?).and_return(false)
+      allow(platform).to receive(:windows_hyperv_admin?).and_return(false)
 
       expect { subject.usable?(true) }.
         to raise_error(VagrantPlugins::HyperV::Errors::AdminRequired)
     end
 
     it "raises an exception if neither an admin nor a hyper-v admin" do
-      platform.stub(windows_admin?: false)
-      platform.stub(windows_hyperv_admin?: false)
+      allow(platform).to receive(:windows_admin?).and_return(false)
+      allow(platform).to receive(:windows_hyperv_admin?).and_return(false)
 
       expect { subject.usable?(true) }.
         to raise_error(VagrantPlugins::HyperV::Errors::AdminRequired)
     end
 
     it "raises an exception if powershell is not available" do
-      powershell.stub(available?: false)
+      allow(powershell).to receive(:available?).and_return(false)
 
       expect { subject.usable?(true) }.
         to raise_error(VagrantPlugins::HyperV::Errors::PowerShellRequired)
@@ -83,13 +83,13 @@ describe VagrantPlugins::HyperV::Provider do
 
   describe "#state" do
     it "returns not_created if no ID" do
-      machine.stub(id: nil)
+      allow(machine).to receive(:id).and_return(nil)
 
       expect(subject.state.id).to eq(:not_created)
     end
 
     it "calls an action to determine the ID" do
-      machine.stub(id: "foo")
+      allow(machine).to receive(:id).and_return("foo")
       expect(machine).to receive(:action).with(:read_state).
         and_return({ machine_state_id: :bar })
 
diff --git a/test/unit/plugins/providers/virtualbox/action/network_fix_ipv6_test.rb b/test/unit/plugins/providers/virtualbox/action/network_fix_ipv6_test.rb
index 2f99b954b..f12261de5 100644
--- a/test/unit/plugins/providers/virtualbox/action/network_fix_ipv6_test.rb
+++ b/test/unit/plugins/providers/virtualbox/action/network_fix_ipv6_test.rb
@@ -13,7 +13,7 @@ describe VagrantPlugins::ProviderVirtualBox::Action::NetworkFixIPv6 do
 
   let(:machine) do
     iso_env.machine(iso_env.machine_names[0], :dummy).tap do |m|
-      m.provider.stub(driver: driver)
+      allow(m.provider).to receive(:driver).and_return(driver)
     end
   end
 
@@ -45,7 +45,7 @@ describe VagrantPlugins::ProviderVirtualBox::Action::NetworkFixIPv6 do
         .and_return(private_network: { ip: 'fe:80::' })
       allow(UDPSocket).to receive(:new).with(Socket::AF_INET6)
         .and_return(socket)
-      socket.stub(:connect)
+      allow(socket).to receive(:connect)
     end
 
     it "only checks the interfaces associated with the VM" do
diff --git a/test/unit/plugins/providers/virtualbox/action/network_test.rb b/test/unit/plugins/providers/virtualbox/action/network_test.rb
index 0d1f262e2..e63abf8b8 100644
--- a/test/unit/plugins/providers/virtualbox/action/network_test.rb
+++ b/test/unit/plugins/providers/virtualbox/action/network_test.rb
@@ -15,7 +15,7 @@ describe VagrantPlugins::ProviderVirtualBox::Action::Network do
 
   let(:machine) do
     iso_env.machine(iso_env.machine_names[0], :virtualbox).tap do |m|
-      m.provider.stub(driver: driver)
+      allow(m.provider).to receive(:driver).and_return(driver)
     end
   end
 
diff --git a/test/unit/plugins/providers/virtualbox/action/prepare_nfs_settings_test.rb b/test/unit/plugins/providers/virtualbox/action/prepare_nfs_settings_test.rb
index c878b0227..9345b4011 100644
--- a/test/unit/plugins/providers/virtualbox/action/prepare_nfs_settings_test.rb
+++ b/test/unit/plugins/providers/virtualbox/action/prepare_nfs_settings_test.rb
@@ -15,7 +15,7 @@ describe VagrantPlugins::ProviderVirtualBox::Action::PrepareNFSSettings do
 
   let(:machine) do
     iso_env.machine(iso_env.machine_names[0], :dummy).tap do |m|
-      m.provider.stub(driver: driver)
+      allow(m.provider).to receive(:driver).and_return(driver)
     end
   end
 
@@ -33,8 +33,8 @@ describe VagrantPlugins::ProviderVirtualBox::Action::PrepareNFSSettings do
   end
 
   it "calls the next action in the chain" do
-    driver.stub(read_network_interfaces: {2 => {type: :hostonly, hostonly: "vmnet2"}})
-    driver.stub(read_host_only_interfaces: [{name: "vmnet2", ip: "1.2.3.4"}])
+    allow(driver).to receive(:read_network_interfaces).and_return({2 => {type: :hostonly, hostonly: "vmnet2"}})
+    allow(driver).to receive(:read_host_only_interfaces).and_return([{name: "vmnet2", ip: "1.2.3.4"}])
     allow(driver).to receive(:read_guest_ip).with(1).and_return("2.3.4.5")
 
     called = false
@@ -53,16 +53,16 @@ describe VagrantPlugins::ProviderVirtualBox::Action::PrepareNFSSettings do
 
     before do
       # We can't be on Windows, because NFS gets disabled on Windows
-      Vagrant::Util::Platform.stub(windows?: false)
+      allow(Vagrant::Util::Platform).to receive(:windows?).and_return(false)
 
       env[:machine].config.vm.synced_folder("/host/path", "/guest/path", type: "nfs")
       env[:machine].config.finalize!
 
       # Stub out the stuff so it just works by default
-      driver.stub(read_network_interfaces: {
+      allow(driver).to receive(:read_network_interfaces).and_return({
         2 => {type: :hostonly, hostonly: "vmnet2"},
       })
-      driver.stub(read_host_only_interfaces: host_only_interfaces)
+      allow(driver).to receive(:read_host_only_interfaces).and_return(host_only_interfaces)
       allow(driver).to receive(:read_guest_ip).with(1).and_return("2.3.4.5")
 
       # override sleep to 0 so test does not take seconds
diff --git a/test/unit/plugins/providers/virtualbox/action/prepare_nfs_valid_ids_test.rb b/test/unit/plugins/providers/virtualbox/action/prepare_nfs_valid_ids_test.rb
index d6ed4cf9d..b3f05d525 100644
--- a/test/unit/plugins/providers/virtualbox/action/prepare_nfs_valid_ids_test.rb
+++ b/test/unit/plugins/providers/virtualbox/action/prepare_nfs_valid_ids_test.rb
@@ -13,7 +13,7 @@ describe VagrantPlugins::ProviderVirtualBox::Action::PrepareNFSValidIds do
 
   let(:machine) do
     iso_env.machine(iso_env.machine_names[0], :dummy).tap do |m|
-      m.provider.stub(driver: driver)
+      allow(m.provider).to receive(:driver).and_return(driver)
     end
   end
 
@@ -24,7 +24,7 @@ describe VagrantPlugins::ProviderVirtualBox::Action::PrepareNFSValidIds do
   subject { described_class.new(app, env) }
 
   before do
-    driver.stub(read_vms: {})
+    allow(driver).to receive(:read_vms).and_return({})
   end
 
   it "calls the next action in the chain" do
@@ -39,7 +39,7 @@ describe VagrantPlugins::ProviderVirtualBox::Action::PrepareNFSValidIds do
 
   it "sets nfs_valid_ids" do
     hash = {"foo" => "1", "bar" => "4"}
-    driver.stub(read_vms: hash)
+    allow(driver).to receive(:read_vms).and_return(hash)
 
     subject.call(env)
 
diff --git a/test/unit/plugins/providers/virtualbox/cap_test.rb b/test/unit/plugins/providers/virtualbox/cap_test.rb
index 52eb9bc43..351b40c5f 100644
--- a/test/unit/plugins/providers/virtualbox/cap_test.rb
+++ b/test/unit/plugins/providers/virtualbox/cap_test.rb
@@ -14,8 +14,8 @@ describe VagrantPlugins::ProviderVirtualBox::Cap do
 
   let(:machine) do
     iso_env.machine(iso_env.machine_names[0], :dummy).tap do |m|
-      m.provider.stub(driver: driver)
-      m.stub(state: state)
+      allow(m.provider).to receive(:driver).and_return(driver)
+      allow(m).to receive(:state).and_return(state)
     end
   end
 
diff --git a/test/unit/plugins/providers/virtualbox/config_test.rb b/test/unit/plugins/providers/virtualbox/config_test.rb
index ea044247c..1b125cb42 100644
--- a/test/unit/plugins/providers/virtualbox/config_test.rb
+++ b/test/unit/plugins/providers/virtualbox/config_test.rb
@@ -25,10 +25,10 @@ describe VagrantPlugins::ProviderVirtualBox::Config do
 
   before do
     vm_config = double("vm_config")
-    vm_config.stub(networks: [])
+    allow(vm_config).to receive(:networks).and_return([])
     config = double("config")
-    config.stub(vm: vm_config)
-    machine.stub(config: config)
+    allow(config).to receive(:vm).and_return(vm_config)
+    allow(machine).to receive(:config).and_return(config)
   end
 
   its "valid by default" do
diff --git a/test/unit/plugins/providers/virtualbox/synced_folder_test.rb b/test/unit/plugins/providers/virtualbox/synced_folder_test.rb
index e97280806..1cbb51edd 100644
--- a/test/unit/plugins/providers/virtualbox/synced_folder_test.rb
+++ b/test/unit/plugins/providers/virtualbox/synced_folder_test.rb
@@ -7,8 +7,8 @@ require Vagrant.source_root.join("plugins/providers/virtualbox/synced_folder")
 describe VagrantPlugins::ProviderVirtualBox::SyncedFolder do
   let(:machine) do
     double("machine").tap do |m|
-      m.stub(provider_config: VagrantPlugins::ProviderVirtualBox::Config.new)
-      m.stub(provider_name: :virtualbox)
+      allow(m).to receive(:provider_config).and_return(VagrantPlugins::ProviderVirtualBox::Config.new)
+      allow(m).to receive(:provider_name).and_return(:virtualbox)
     end
   end
 
@@ -20,12 +20,12 @@ describe VagrantPlugins::ProviderVirtualBox::SyncedFolder do
 
   describe "usable" do
     it "should be with virtualbox provider" do
-      machine.stub(provider_name: :virtualbox)
+      allow(machine).to receive(:provider_name).and_return(:virtualbox)
       expect(subject).to be_usable(machine)
     end
 
     it "should not be with another provider" do
-      machine.stub(provider_name: :vmware_fusion)
+      allow(machine).to receive(:provider_name).and_return(:vmware_fusion)
       expect(subject).not_to be_usable(machine)
     end
 
@@ -39,7 +39,7 @@ describe VagrantPlugins::ProviderVirtualBox::SyncedFolder do
     let(:driver) { double("driver") }
 
     before do
-      machine.stub(driver: driver)
+      allow(machine).to receive(:driver).and_return(driver)
     end
 
     it "should share the folders"
diff --git a/test/unit/plugins/provisioners/docker/provisioner_test.rb b/test/unit/plugins/provisioners/docker/provisioner_test.rb
index 29890dac6..f91ed657a 100644
--- a/test/unit/plugins/provisioners/docker/provisioner_test.rb
+++ b/test/unit/plugins/provisioners/docker/provisioner_test.rb
@@ -22,21 +22,21 @@ describe VagrantPlugins::DockerProvisioner::Provisioner do
   let(:hook)         { double("hook") }
 
   before do
-    machine.stub(communicate: communicator)
-    machine.stub(guest: guest)
+    allow(machine).to receive(:communicate).and_return(communicator)
+    allow(machine).to receive(:guest).and_return(guest)
 
-    communicator.stub(execute: true)
-    communicator.stub(upload: true)
+    allow(communicator).to receive(:execute).and_return(true)
+    allow(communicator).to receive(:upload).and_return(true)
 
-    guest.stub(capability?: false)
-    guest.stub(capability: false)
+    allow(guest).to receive(:capability?).and_return(false)
+    allow(guest).to receive(:capability).and_return(false)
 
-    client.stub(start_service: true)
-    client.stub(daemon_running?: true)
+    allow(client).to receive(:start_service).and_return(true)
+    allow(client).to receive(:daemon_running?).and_return(true)
 
-    config.stub(images: Set.new)
-    config.stub(build_images: Set.new)
-    config.stub(containers: Hash.new)
+    allow(config).to receive(:images).and_return(Set.new)
+    allow(config).to receive(:build_images).and_return(Set.new)
+    allow(config).to receive(:containers).and_return(Hash.new)
   end
 
   describe "#provision" do
@@ -47,7 +47,7 @@ describe VagrantPlugins::DockerProvisioner::Provisioner do
     end
 
     it "invokes a post_install_provisioner if defined and docker is installed" do
-      installer.stub(ensure_installed: true)
+      allow(installer).to receive(:ensure_installed).and_return(true)
       allow(config).to receive(:post_install_provisioner).and_return(provisioner)
       allow(machine).to receive(:env).and_return(iso_env)
       allow(machine.env).to receive(:hook).and_return(true)
@@ -57,7 +57,7 @@ describe VagrantPlugins::DockerProvisioner::Provisioner do
     end
 
     it "does not invoke post_install_provisioner if not defined" do
-      installer.stub(ensure_installed: true)
+      allow(installer).to receive(:ensure_installed).and_return(true)
       allow(config).to receive(:post_install_provisioner).and_return(nil)
       allow(machine).to receive(:env).and_return(iso_env)
       allow(machine.env).to receive(:hook).and_return(true)
diff --git a/test/unit/plugins/provisioners/file/provisioner_test.rb b/test/unit/plugins/provisioners/file/provisioner_test.rb
index 4dc692eac..a42f1169c 100644
--- a/test/unit/plugins/provisioners/file/provisioner_test.rb
+++ b/test/unit/plugins/provisioners/file/provisioner_test.rb
@@ -20,19 +20,19 @@ describe VagrantPlugins::FileUpload::Provisioner do
   let(:guest)        { double("guest") }
 
   before do
-    machine.stub(communicate: communicator)
-    machine.stub(guest: guest)
+    allow(machine).to receive(:communicate).and_return(communicator)
+    allow(machine).to receive(:guest).and_return(guest)
 
-    communicator.stub(execute: true)
-    communicator.stub(upload: true)
+    allow(communicator).to receive(:execute).and_return(true)
+    allow(communicator).to receive(:upload).and_return(true)
 
-    guest.stub(capability?: false)
+    allow(guest).to receive(:capability?).and_return(false)
   end
 
   describe "#provision" do
     it "creates the destination directory" do
-      config.stub(source: "/source")
-      config.stub(destination: "/foo/bar")
+      allow(config).to receive(:source).and_return("/source")
+      allow(config).to receive(:destination).and_return("/foo/bar")
 
       expect(communicator).to receive(:execute).with("mkdir -p /foo")
 
@@ -40,8 +40,8 @@ describe VagrantPlugins::FileUpload::Provisioner do
     end
 
     it "uploads the file" do
-      config.stub(source: "/source")
-      config.stub(destination: "/foo/bar")
+      allow(config).to receive(:source).and_return("/source")
+      allow(config).to receive(:destination).and_return("/foo/bar")
 
       expect(communicator).to receive(:upload).with("/source", "/foo/bar")
 
@@ -49,8 +49,8 @@ describe VagrantPlugins::FileUpload::Provisioner do
     end
 
     it "expands the source file path" do
-      config.stub(source: "source")
-      config.stub(destination: "/foo/bar")
+      allow(config).to receive(:source).and_return("source")
+      allow(config).to receive(:destination).and_return("/foo/bar")
 
       expect(communicator).to receive(:upload).with(
         File.expand_path("source"), "/foo/bar")
@@ -59,8 +59,8 @@ describe VagrantPlugins::FileUpload::Provisioner do
     end
 
     it "expands the destination file path if capable" do
-      config.stub(source: "/source")
-      config.stub(destination: "$HOME/foo")
+      allow(config).to receive(:source).and_return("/source")
+      allow(config).to receive(:destination).and_return("$HOME/foo")
 
       expect(guest).to receive(:capability?).
         with(:shell_expand_guest_path).and_return(true)
diff --git a/test/unit/plugins/provisioners/salt/provisioner_test.rb b/test/unit/plugins/provisioners/salt/provisioner_test.rb
index 93ce44a87..b203ea332 100644
--- a/test/unit/plugins/provisioners/salt/provisioner_test.rb
+++ b/test/unit/plugins/provisioners/salt/provisioner_test.rb
@@ -20,13 +20,13 @@ describe VagrantPlugins::Salt::Provisioner do
   let(:guest)        { double("guest") }
 
   before do
-    machine.stub(communicate: communicator)
-    machine.stub(guest: guest)
+    allow(machine).to receive(:communicate).and_return(communicator)
+    allow(machine).to receive(:guest).and_return(guest)
 
-    communicator.stub(execute: true)
-    communicator.stub(upload: true)
+    allow(communicator).to receive(:execute).and_return(true)
+    allow(communicator).to receive(:upload).and_return(true)
 
-    guest.stub(capability?: false)
+    allow(guest).to receive(:capability?).and_return(false)
   end
 
   describe "#provision" do
diff --git a/test/unit/plugins/provisioners/shell/provisioner_test.rb b/test/unit/plugins/provisioners/shell/provisioner_test.rb
index ef977fb2f..db431ccef 100644
--- a/test/unit/plugins/provisioners/shell/provisioner_test.rb
+++ b/test/unit/plugins/provisioners/shell/provisioner_test.rb
@@ -7,8 +7,8 @@ describe "Vagrant::Shell::Provisioner" do
   let(:env){ isolated_environment }
   let(:machine) {
     double(:machine, env: env, id: "ID").tap { |machine|
-      machine.stub_chain(:config, :vm, :communicator).and_return(:not_winrm)
-      machine.stub_chain(:communicate, :tap) {}
+      allow(machine).to receive_message_chain(:config, :vm, :communicator).and_return(:not_winrm)
+      allow(machine).to receive_message_chain(:communicate, :tap) {}
     }
   }
 
@@ -62,7 +62,7 @@ describe "Vagrant::Shell::Provisioner" do
 
       let(:digest){ double("digest") }
       before do
-        Vagrant::Util::Downloader.any_instance.should_receive(:execute_curl).and_return(true)
+        allow_any_instance_of(Vagrant::Util::Downloader).to receive(:execute_curl).and_return(true)
         allow(digest).to receive(:file).and_return(digest)
         expect(Digest::SHA1).to receive(:new).and_return(digest)
         expect(digest).to receive(:hexdigest).and_return('INVALID_VALUE')
@@ -92,7 +92,7 @@ describe "Vagrant::Shell::Provisioner" do
 
       let(:digest){ double("digest") }
       before do
-        Vagrant::Util::Downloader.any_instance.should_receive(:execute_curl).and_return(true)
+        allow_any_instance_of(Vagrant::Util::Downloader).to receive(:execute_curl).and_return(true)
         allow(digest).to receive(:file).and_return(digest)
         expect(Digest::MD5).to receive(:new).and_return(digest)
         expect(digest).to receive(:hexdigest).and_return('INVALID_VALUE')
diff --git a/test/unit/plugins/synced_folders/nfs/action_cleanup_test.rb b/test/unit/plugins/synced_folders/nfs/action_cleanup_test.rb
index fb2ea5c2a..e87ce2827 100644
--- a/test/unit/plugins/synced_folders/nfs/action_cleanup_test.rb
+++ b/test/unit/plugins/synced_folders/nfs/action_cleanup_test.rb
@@ -23,7 +23,7 @@ describe VagrantPlugins::SyncedFolderNFS::ActionCleanup do
   subject { described_class.new(app, env) }
 
   before do
-    machine.env.stub(host: host)
+    allow(machine.env).to receive(:host).and_return(host)
   end
 
   it "does nothing if there are no valid IDs" do
diff --git a/test/unit/plugins/synced_folders/rsync/command/rsync_auto_test.rb b/test/unit/plugins/synced_folders/rsync/command/rsync_auto_test.rb
index 0317c4195..2070f1cef 100644
--- a/test/unit/plugins/synced_folders/rsync/command/rsync_auto_test.rb
+++ b/test/unit/plugins/synced_folders/rsync/command/rsync_auto_test.rb
@@ -34,17 +34,17 @@ describe VagrantPlugins::SyncedFolderRSync::Command::RsyncAuto do
 
   def machine_stub(name)
     double(name).tap do |m|
-      m.stub(id: "foo")
-      m.stub(reload: nil)
-      m.stub(ssh_info: ssh_info)
-      m.stub(ui: iso_env.ui)
-      m.stub(provider: double("provider"))
-      m.stub(state: double("state", id: :not_created))
-      m.stub(env: iso_env)
-      m.stub(config: double("config"))
+      allow(m).to receive(:id).and_return("foo")
+      allow(m).to receive(:reload).and_return(nil)
+      allow(m).to receive(:ssh_info).and_return(ssh_info)
+      allow(m).to receive(:ui).and_return(iso_env.ui)
+      allow(m).to receive(:provider).and_return(double("provider"))
+      allow(m).to receive(:state).and_return(double("state", id: :not_created))
+      allow(m).to receive(:env).and_return(iso_env)
+      allow(m).to receive(:config).and_return(double("config"))
 
 
-      m.ui.stub(error: nil)
+      allow(m.ui).to receive(:error).and_return(nil)
     end
   end
 
@@ -111,7 +111,7 @@ describe VagrantPlugins::SyncedFolderRSync::Command::RsyncAuto do
 
   subject do
     described_class.new(argv, iso_env).tap do |s|
-      s.stub(synced_folders: synced_folders_empty)
+      allow(s).to receive(:synced_folders).and_return(synced_folders_empty)
     end
   end
 
@@ -207,7 +207,7 @@ describe VagrantPlugins::SyncedFolderRSync::Command::RsyncAuto do
       ]
 
       paths["/foo"].each do |data|
-        data[:machine].stub(id: nil)
+        allow(data[:machine]).to receive(:id).and_return(nil)
         expect(helper_class).to_not receive(:rsync_single)
       end
 
diff --git a/test/unit/plugins/synced_folders/rsync/command/rsync_test.rb b/test/unit/plugins/synced_folders/rsync/command/rsync_test.rb
index 4be389d9f..5cfa4908b 100644
--- a/test/unit/plugins/synced_folders/rsync/command/rsync_test.rb
+++ b/test/unit/plugins/synced_folders/rsync/command/rsync_test.rb
@@ -21,14 +21,14 @@ describe VagrantPlugins::SyncedFolderRSync::Command::Rsync do
 
   subject do
     described_class.new(argv, iso_env).tap do |s|
-      s.stub(synced_folders: synced_folders)
+      allow(s).to receive(:synced_folders).and_return(synced_folders)
     end
   end
 
   before do
     iso_env.machine_names.each do |name|
       m = iso_env.machine(name, iso_env.default_provider)
-      m.stub(communicate: communicator)
+      allow(m).to receive(:communicate).and_return(communicator)
     end
   end
 
@@ -41,8 +41,8 @@ describe VagrantPlugins::SyncedFolderRSync::Command::Rsync do
       let(:machine) { iso_env.machine(iso_env.machine_names[0], iso_env.default_provider) }
 
       before do
-        communicator.stub(ready?: true)
-        machine.stub(ssh_info: ssh_info)
+        allow(communicator).to receive(:ready?).and_return(true)
+        allow(machine).to receive(:ssh_info).and_return(ssh_info)
 
         synced_folders[:rsync] = [
           [:one, {}],
@@ -51,7 +51,7 @@ describe VagrantPlugins::SyncedFolderRSync::Command::Rsync do
       end
 
       it "doesn't sync if communicator isn't ready and exits with 1" do
-        communicator.stub(ready?: false)
+        allow(communicator).to receive(:ready?).and_return(false)
 
         expect(helper_class).to receive(:rsync_single).never
 
diff --git a/test/unit/plugins/synced_folders/rsync/helper_test.rb b/test/unit/plugins/synced_folders/rsync/helper_test.rb
index 5e960d001..3eae7b51f 100644
--- a/test/unit/plugins/synced_folders/rsync/helper_test.rb
+++ b/test/unit/plugins/synced_folders/rsync/helper_test.rb
@@ -20,7 +20,7 @@ describe VagrantPlugins::SyncedFolderRSync::RsyncHelper do
   subject { described_class }
 
   before do
-    machine.stub(guest: guest)
+    allow(machine).to receive(:guest).and_return(guest)
 
     # Don't do all the crazy Cygwin stuff
     allow(Vagrant::Util::Platform).to receive(:cygwin_path) do |path, **opts|
@@ -64,9 +64,9 @@ describe VagrantPlugins::SyncedFolderRSync::RsyncHelper do
     let(:ui)        { machine.ui }
 
     before do
-      Vagrant::Util::Subprocess.stub(:execute){ result }
+      allow(Vagrant::Util::Subprocess).to receive(:execute){ result }
 
-      guest.stub(:capability?){ false }
+      allow(guest).to receive(:capability?){ false }
     end
 
     it "doesn't raise an error if it succeeds" do
@@ -74,13 +74,13 @@ describe VagrantPlugins::SyncedFolderRSync::RsyncHelper do
     end
 
     it "doesn't call cygwin_path on non-Windows" do
-      Vagrant::Util::Platform.stub(windows?: false)
+      allow(Vagrant::Util::Platform).to receive(:windows?).and_return(false)
       expect(Vagrant::Util::Platform).not_to receive(:cygwin_path)
       subject.rsync_single(machine, ssh_info, opts)
     end
 
     it "calls cygwin_path on Windows" do
-      Vagrant::Util::Platform.stub(windows?: true)
+      allow(Vagrant::Util::Platform).to receive(:windows?).and_return(true)
       expect(Vagrant::Util::Platform).to receive(:cygwin_path).and_return("foo")
 
       expect(Vagrant::Util::Subprocess).to receive(:execute).with(any_args) { |*args|
@@ -91,8 +91,8 @@ describe VagrantPlugins::SyncedFolderRSync::RsyncHelper do
     end
 
     it "raises an error if the exit code is non-zero" do
-      Vagrant::Util::Subprocess.stub(
-        execute: Vagrant::Util::Subprocess::Result.new(1, "", ""))
+      allow(Vagrant::Util::Subprocess).to receive(:execute)
+        .and_return(Vagrant::Util::Subprocess::Result.new(1, "", ""))
 
       expect {subject.rsync_single(machine, ssh_info, opts) }.
         to raise_error(Vagrant::Errors::RSyncError)
@@ -228,9 +228,9 @@ describe VagrantPlugins::SyncedFolderRSync::RsyncHelper do
     let(:ui)        { machine.ui }
 
     before do
-      Vagrant::Util::Subprocess.stub(:execute){ result }
+      allow(Vagrant::Util::Subprocess).to receive(:execute){ result }
 
-      guest.stub(:capability?){ false }
+      allow(guest).to receive(:capability?){ false }
     end
 
     it "includes IdentitiesOnly, StrictHostKeyChecking, and UserKnownHostsFile with defaults" do
@@ -248,7 +248,7 @@ describe VagrantPlugins::SyncedFolderRSync::RsyncHelper do
     it "omits IdentitiesOnly with keys_only = false" do
       ssh_info[:keys_only] = false
 
-      Vagrant::Util::Subprocess.should_receive(:execute) do |*args|
+      expect(Vagrant::Util::Subprocess).to receive(:execute) do |*args|
         expect(args[9]).not_to include('IdentitiesOnly')
         result
       end
@@ -259,7 +259,7 @@ describe VagrantPlugins::SyncedFolderRSync::RsyncHelper do
     it "omits StrictHostKeyChecking and UserKnownHostsFile with paranoid = true" do
       ssh_info[:keys_only] = false
 
-      Vagrant::Util::Subprocess.should_receive(:execute) do |*args|
+      expect(Vagrant::Util::Subprocess).to receive(:execute) do |*args|
         expect(args[9]).not_to include('StrictHostKeyChecking ')
         expect(args[9]).not_to include('UserKnownHostsFile ')
         result
diff --git a/test/unit/plugins/synced_folders/rsync/synced_folder_test.rb b/test/unit/plugins/synced_folders/rsync/synced_folder_test.rb
index 39b654a06..02567b9c1 100644
--- a/test/unit/plugins/synced_folders/rsync/synced_folder_test.rb
+++ b/test/unit/plugins/synced_folders/rsync/synced_folder_test.rb
@@ -19,8 +19,8 @@ describe VagrantPlugins::SyncedFolderRSync::SyncedFolder do
   let(:helper_class) { VagrantPlugins::SyncedFolderRSync::RsyncHelper }
 
   before do
-    machine.env.stub(host: host)
-    machine.stub(guest: guest)
+    allow(machine.env).to receive(:host).and_return(host)
+    allow(machine).to receive(:guest).and_return(guest)
   end
 
   describe "#usable?" do
@@ -47,7 +47,7 @@ describe VagrantPlugins::SyncedFolderRSync::SyncedFolder do
     }}
 
     before do
-      machine.stub(ssh_info: ssh_info)
+      allow(machine).to receive(:ssh_info).and_return(ssh_info)
       allow(guest).to receive(:capability?).with(:rsync_installed)
     end
 
diff --git a/test/unit/vagrant/action/builtin/box_add_test.rb b/test/unit/vagrant/action/builtin/box_add_test.rb
index 5c2616b13..ef33328a3 100644
--- a/test/unit/vagrant/action/builtin/box_add_test.rb
+++ b/test/unit/vagrant/action/builtin/box_add_test.rb
@@ -81,7 +81,7 @@ describe Vagrant::Action::Builtin::BoxAdd, :skip_windows do
   end
 
   before do
-    box_collection.stub(find: nil)
+    allow(box_collection).to receive(:find).and_return(nil)
   end
 
   context "with box file directly" do
@@ -267,7 +267,7 @@ describe Vagrant::Action::Builtin::BoxAdd, :skip_windows do
       env[:box_url] = box_path.to_s
       env[:box_provider] = "virtualbox"
 
-      box_collection.stub(find: box)
+      allow(box_collection).to receive(:find).and_return(box)
       expect(box_collection).to receive(:add).with(any_args) { |path, name, version, **opts|
         expect(checksum(path)).to eq(checksum(box_path))
         expect(name).to eq("foo")
@@ -691,7 +691,7 @@ describe Vagrant::Action::Builtin::BoxAdd, :skip_windows do
       expect(box_collection).to receive(:add).never
       expect(app).to receive(:call).never
 
-      Vagrant.stub(server_url: nil)
+      allow(Vagrant).to receive(:server_url).and_return(nil)
 
       expect { subject.call(env) }.
         to raise_error(Vagrant::Errors::BoxServerNotSet)
@@ -1225,7 +1225,7 @@ describe Vagrant::Action::Builtin::BoxAdd, :skip_windows do
 
       env[:box_force] = true
       env[:box_url] = tf.path
-      box_collection.stub(find: box)
+      allow(box_collection).to receive(:find).and_return(box)
       expect(box_collection).to receive(:add).with(any_args) { |path, name, version, **opts|
         expect(checksum(path)).to eq(checksum(box_path))
         expect(name).to eq("foo/bar")
diff --git a/test/unit/vagrant/action/builtin/box_check_outdated_test.rb b/test/unit/vagrant/action/builtin/box_check_outdated_test.rb
index a17f29adb..82aa25e1a 100644
--- a/test/unit/vagrant/action/builtin/box_check_outdated_test.rb
+++ b/test/unit/vagrant/action/builtin/box_check_outdated_test.rb
@@ -24,7 +24,7 @@ describe Vagrant::Action::Builtin::BoxCheckOutdated do
   let(:box) do
     box_dir = iso_env.box3("foo", "1.0", :virtualbox)
     Vagrant::Box.new("foo", :virtualbox, "1.0", box_dir).tap do |b|
-      b.stub(has_update?: nil)
+      allow(b).to receive(:has_update?).and_return(nil)
     end
   end
 
@@ -35,7 +35,7 @@ describe Vagrant::Action::Builtin::BoxCheckOutdated do
   end
 
   before do
-    machine.stub(box: box)
+    allow(machine).to receive(:box).and_return(box)
   end
 
   context "disabling outdated checking" do
@@ -63,7 +63,7 @@ describe Vagrant::Action::Builtin::BoxCheckOutdated do
 
   context "no box" do
     it "raises an exception if the machine doesn't have a box yet" do
-      machine.stub(box: nil)
+      allow(machine).to receive(:box).and_return(nil)
 
       expect(app).to receive(:call).with(env).once
 
@@ -75,8 +75,8 @@ describe Vagrant::Action::Builtin::BoxCheckOutdated do
 
   context "with a non-versioned box" do
     it "does nothing" do
-      box.stub(metadata_url: nil)
-      box.stub(version: "0")
+      allow(box).to receive(:metadata_url).and_return(nil)
+      allow(box).to receive(:version).and_return("0")
 
       expect(app).to receive(:call).once
       expect(box).to receive(:has_update?).never
diff --git a/test/unit/vagrant/action/builtin/box_remove_test.rb b/test/unit/vagrant/action/builtin/box_remove_test.rb
index f1a740218..63637ab84 100644
--- a/test/unit/vagrant/action/builtin/box_remove_test.rb
+++ b/test/unit/vagrant/action/builtin/box_remove_test.rb
@@ -24,7 +24,7 @@ describe Vagrant::Action::Builtin::BoxRemove do
   end
 
   it "deletes the box if it is the only option" do
-    box_collection.stub(all: [["foo", "1.0", :virtualbox]])
+    allow(box_collection).to receive(:all).and_return([["foo", "1.0", :virtualbox]])
 
     env[:box_name] = "foo"
 
@@ -41,8 +41,8 @@ describe Vagrant::Action::Builtin::BoxRemove do
   end
 
   it "deletes the box with the specified provider if given" do
-    box_collection.stub(
-      all: [
+    allow(box_collection).to receive(:all)
+      .and_return([
         ["foo", "1.0", :virtualbox],
         ["foo", "1.0", :vmware],
       ])
@@ -63,8 +63,8 @@ describe Vagrant::Action::Builtin::BoxRemove do
   end
 
   it "deletes the box with the specified version if given" do
-    box_collection.stub(
-      all: [
+    allow(box_collection).to receive(:all)
+      .and_return([
         ["foo", "1.0", :virtualbox],
         ["foo", "1.1", :virtualbox],
       ])
@@ -93,7 +93,7 @@ describe Vagrant::Action::Builtin::BoxRemove do
           "version" => "1.0",
         }
 
-        entry.stub(valid?: valid)
+        allow(entry).to receive(:valid?).and_return(valid)
       end
     end
 
@@ -102,8 +102,8 @@ describe Vagrant::Action::Builtin::BoxRemove do
     before do
       env[:action_runner] = action_runner
 
-      box_collection.stub(
-        all: [
+      allow(box_collection).to receive(:all)
+        .and_return([
           ["foo", "1.0", :virtualbox],
           ["foo", "1.1", :virtualbox],
         ])
@@ -154,7 +154,7 @@ describe Vagrant::Action::Builtin::BoxRemove do
   end
 
   it "errors if the box doesn't exist" do
-    box_collection.stub(all: [])
+    allow(box_collection).to receive(:all).and_return([])
 
     expect(app).to receive(:call).never
 
@@ -166,7 +166,7 @@ describe Vagrant::Action::Builtin::BoxRemove do
     env[:box_name] = "foo"
     env[:box_provider] = "bar"
 
-    box_collection.stub(all: [["foo", "1.0", :virtualbox]])
+    allow(box_collection).to receive(:all).and_return([["foo", "1.0", :virtualbox]])
 
     expect(app).to receive(:call).never
 
@@ -177,8 +177,8 @@ describe Vagrant::Action::Builtin::BoxRemove do
   it "errors if there are multiple providers" do
     env[:box_name] = "foo"
 
-    box_collection.stub(
-      all: [
+    allow(box_collection).to receive(:all)
+      .and_return([
         ["foo", "1.0", :virtualbox],
         ["foo", "1.0", :vmware],
       ])
@@ -193,8 +193,8 @@ describe Vagrant::Action::Builtin::BoxRemove do
     env[:box_name] = "foo"
     env[:box_provider] = "virtualbox"
 
-    box_collection.stub(
-      all: [
+    allow(box_collection).to receive(:all)
+      .and_return([
         ["foo", "1.0", :virtualbox],
         ["foo", "1.1", :virtualbox],
       ])
@@ -209,7 +209,7 @@ describe Vagrant::Action::Builtin::BoxRemove do
     env[:box_name] = "foo"
     env[:box_version] = "1.1"
 
-    box_collection.stub(all: [["foo", "1.0", :virtualbox]])
+    allow(box_collection).to receive(:all).and_return([["foo", "1.0", :virtualbox]])
 
     expect(app).to receive(:call).never
 
diff --git a/test/unit/vagrant/action/builtin/graceful_halt_test.rb b/test/unit/vagrant/action/builtin/graceful_halt_test.rb
index 46d56039f..76c6c43e7 100644
--- a/test/unit/vagrant/action/builtin/graceful_halt_test.rb
+++ b/test/unit/vagrant/action/builtin/graceful_halt_test.rb
@@ -13,8 +13,8 @@ describe Vagrant::Action::Builtin::GracefulHalt do
   let(:machine_config) do
     double("machine_config").tap do |top_config|
       vm_config = double("machien_vm_config")
-      vm_config.stub(graceful_halt_timeout: 10)
-      top_config.stub(vm: vm_config)
+      allow(vm_config).to receive(:graceful_halt_timeout).and_return(10)
+      allow(top_config).to receive(:vm).and_return(vm_config)
     end
   end
   let(:machine_guest) { double("machine_guest") }
diff --git a/test/unit/vagrant/action/builtin/handle_box_test.rb b/test/unit/vagrant/action/builtin/handle_box_test.rb
index 81f6151f3..2d2eb271b 100644
--- a/test/unit/vagrant/action/builtin/handle_box_test.rb
+++ b/test/unit/vagrant/action/builtin/handle_box_test.rb
@@ -38,7 +38,7 @@ describe Vagrant::Action::Builtin::HandleBox do
   end
 
   it "doesn't do anything if a box exists" do
-    machine.stub(box: box)
+    allow(machine).to receive(:box).and_return(box)
 
     expect(action_runner).to receive(:run).never
     expect(app).to receive(:call).with(env)
@@ -48,7 +48,7 @@ describe Vagrant::Action::Builtin::HandleBox do
 
   context "with a box set and no box_url" do
     before do
-      machine.stub(box: nil)
+      allow(machine).to receive(:box).and_return(nil)
 
       machine.config.vm.box = "foo"
     end
@@ -86,7 +86,7 @@ describe Vagrant::Action::Builtin::HandleBox do
 
   context "with a box and box_url set" do
     before do
-      machine.stub(box: nil)
+      allow(machine).to receive(:box).and_return(nil)
 
       machine.config.vm.box = "foo"
       machine.config.vm.box_url = "bar"
@@ -109,7 +109,7 @@ describe Vagrant::Action::Builtin::HandleBox do
 
   context "with a box with a checksum set" do
     before do
-      machine.stub(box: nil)
+      allow(machine).to receive(:box).and_return(nil)
 
       machine.config.vm.box = "foo"
       machine.config.vm.box_url = "bar"
diff --git a/test/unit/vagrant/action/builtin/handle_forwarded_port_collisions_test.rb b/test/unit/vagrant/action/builtin/handle_forwarded_port_collisions_test.rb
index 7785b036a..8594413d9 100644
--- a/test/unit/vagrant/action/builtin/handle_forwarded_port_collisions_test.rb
+++ b/test/unit/vagrant/action/builtin/handle_forwarded_port_collisions_test.rb
@@ -26,7 +26,7 @@ describe Vagrant::Action::Builtin::HandleForwardedPortCollisions do
 
   let(:machine_config) do
     double("machine_config").tap do |config|
-      config.stub(vm: vm_config)
+      allow(config).to receive(:vm).and_return(vm_config)
     end
   end
 
diff --git a/test/unit/vagrant/action/builtin/is_state_test.rb b/test/unit/vagrant/action/builtin/is_state_test.rb
index 991c9d262..873783a9a 100644
--- a/test/unit/vagrant/action/builtin/is_state_test.rb
+++ b/test/unit/vagrant/action/builtin/is_state_test.rb
@@ -16,7 +16,7 @@ describe Vagrant::Action::Builtin::IsState do
 
   describe "#call" do
     it "sets result to false if is proper state" do
-      state.stub(id: :foo)
+      allow(state).to receive(:id).and_return(:foo)
 
       subject = described_class.new(app, env, :bar)
 
@@ -27,7 +27,7 @@ describe Vagrant::Action::Builtin::IsState do
     end
 
     it "sets result to true if is proper state" do
-      state.stub(id: :foo)
+      allow(state).to receive(:id).and_return(:foo)
 
       subject = described_class.new(app, env, :foo)
 
@@ -38,7 +38,7 @@ describe Vagrant::Action::Builtin::IsState do
     end
 
     it "inverts the result if specified" do
-      state.stub(id: :foo)
+      allow(state).to receive(:id).and_return(:foo)
 
       subject = described_class.new(app, env, :foo, invert: true)
 
diff --git a/test/unit/vagrant/action/builtin/mixin_synced_folders_test.rb b/test/unit/vagrant/action/builtin/mixin_synced_folders_test.rb
index 3ce90fc10..ff7a6e7c5 100644
--- a/test/unit/vagrant/action/builtin/mixin_synced_folders_test.rb
+++ b/test/unit/vagrant/action/builtin/mixin_synced_folders_test.rb
@@ -24,7 +24,7 @@ describe Vagrant::Action::Builtin::MixinSyncedFolders do
 
   let(:machine_config) do
     double("machine_config").tap do |top_config|
-      top_config.stub(vm: vm_config)
+      allow(top_config).to receive(:vm).and_return(vm_config)
     end
   end
 
@@ -98,8 +98,8 @@ describe Vagrant::Action::Builtin::MixinSyncedFolders do
       plugins[:default] = [impl(true, "default"), 10]
       plugins[:nfs] = [impl(true, "nfs"), 5]
 
-      subject.stub(plugins: plugins)
-      vm_config.stub(synced_folders: folders)
+      allow(subject).to receive(:plugins).and_return(plugins)
+      allow(vm_config).to receive(:synced_folders).and_return(folders)
     end
 
     it "should raise exception if bad type is given" do
@@ -133,7 +133,7 @@ describe Vagrant::Action::Builtin::MixinSyncedFolders do
 
       other_folders = { "bar" => {} }
       other = double("config")
-      other.stub(synced_folders: other_folders)
+      allow(other).to receive(:synced_folders).and_return(other_folders)
 
       result = subject.synced_folders(machine, config: other)
       expect(result.length).to eq(1)
@@ -201,7 +201,7 @@ describe Vagrant::Action::Builtin::MixinSyncedFolders do
     it "should be able to save and retrieve cached versions" do
       other_folders = {}
       other = double("config")
-      other.stub(synced_folders: other_folders)
+      allow(other).to receive(:synced_folders).and_return(other_folders)
 
       other_folders["foo"] = { type: "default" }
       result = subject.synced_folders(machine, config: other)
diff --git a/test/unit/vagrant/action/builtin/provision_test.rb b/test/unit/vagrant/action/builtin/provision_test.rb
index 031b87f1d..b6dca80f5 100644
--- a/test/unit/vagrant/action/builtin/provision_test.rb
+++ b/test/unit/vagrant/action/builtin/provision_test.rb
@@ -22,7 +22,7 @@ describe Vagrant::Action::Builtin::Provision do
 
   let(:machine_config) do
     double("machine_config").tap do |config|
-      config.stub(vm: vm_config)
+      allow(config).to receive(:vm).and_return(vm_config)
     end
   end
 
diff --git a/test/unit/vagrant/action/builtin/provisioner_cleanup_test.rb b/test/unit/vagrant/action/builtin/provisioner_cleanup_test.rb
index 2d3b907c7..b995928af 100644
--- a/test/unit/vagrant/action/builtin/provisioner_cleanup_test.rb
+++ b/test/unit/vagrant/action/builtin/provisioner_cleanup_test.rb
@@ -15,7 +15,7 @@ describe Vagrant::Action::Builtin::ProvisionerCleanup do
 
   let(:machine_config) do
     double("machine_config").tap do |config|
-      config.stub(vm: vm_config)
+      allow(config).to receive(:vm).and_return(vm_config)
     end
   end
 
diff --git a/test/unit/vagrant/action/builtin/synced_folder_cleanup_test.rb b/test/unit/vagrant/action/builtin/synced_folder_cleanup_test.rb
index 6a9a94469..db1c4b8d2 100644
--- a/test/unit/vagrant/action/builtin/synced_folder_cleanup_test.rb
+++ b/test/unit/vagrant/action/builtin/synced_folder_cleanup_test.rb
@@ -16,7 +16,7 @@ describe Vagrant::Action::Builtin::SyncedFolderCleanup do
 
   let(:machine_config) do
     double("machine_config").tap do |top_config|
-      top_config.stub(vm: vm_config)
+      allow(top_config).to receive(:vm).and_return(vm_config)
     end
   end
 
@@ -55,8 +55,8 @@ describe Vagrant::Action::Builtin::SyncedFolderCleanup do
       env[:machine] = Object.new
       env[:root_path] = Pathname.new(Dir.mktmpdir("vagrant-test-synced-folder-cleanup-call"))
 
-      subject.stub(plugins: plugins)
-      subject.stub(synced_folders: synced_folders)
+      allow(subject).to receive(:plugins).and_return(plugins)
+      allow(subject).to receive(:synced_folders).and_return(synced_folders)
     end
 
     after do
diff --git a/test/unit/vagrant/action/builtin/synced_folders_test.rb b/test/unit/vagrant/action/builtin/synced_folders_test.rb
index f602abd58..d168cd332 100644
--- a/test/unit/vagrant/action/builtin/synced_folders_test.rb
+++ b/test/unit/vagrant/action/builtin/synced_folders_test.rb
@@ -19,7 +19,7 @@ describe Vagrant::Action::Builtin::SyncedFolders do
 
   let(:machine_config) do
     double("machine_config").tap do |top_config|
-      top_config.stub(vm: vm_config)
+      allow(top_config).to receive(:vm).and_return(vm_config)
     end
   end
 
@@ -42,8 +42,8 @@ describe Vagrant::Action::Builtin::SyncedFolders do
       plugins[:nfs] = [impl(true, "nfs"), 5]
 
       env[:root_path] = Pathname.new(Dir.mktmpdir("vagrant-test-synced-folders-call"))
-      subject.stub(plugins: plugins)
-      subject.stub(synced_folders: synced_folders)
+      allow(subject).to receive(:plugins).and_return(plugins)
+      allow(subject).to receive(:synced_folders).and_return(synced_folders)
       allow(subject).to receive(:save_synced_folders)
     end
 
diff --git a/test/unit/vagrant/batch_action_test.rb b/test/unit/vagrant/batch_action_test.rb
index deba02ac5..f62913aab 100644
--- a/test/unit/vagrant/batch_action_test.rb
+++ b/test/unit/vagrant/batch_action_test.rb
@@ -11,8 +11,8 @@ describe Vagrant::BatchAction do
 
   def new_machine(options)
     double("machine").tap do |m|
-      m.stub(provider_name: provider_name)
-      m.stub(provider_options: options)
+      allow(m).to receive(:provider_name).and_return(provider_name)
+      allow(m).to receive(:provider_options).and_return(options)
       allow(m).to receive(:action) do |action, opts|
         lock.synchronize do
           called_actions << [m, action, opts]
diff --git a/test/unit/vagrant/box_test.rb b/test/unit/vagrant/box_test.rb
index 7be84d5e8..35c3d913a 100644
--- a/test/unit/vagrant/box_test.rb
+++ b/test/unit/vagrant/box_test.rb
@@ -110,7 +110,7 @@ describe Vagrant::Box, :skip_windows do
       }
       RAW
 
-      subject.stub(load_metadata: metadata)
+      allow(subject).to receive(:load_metadata).and_return(metadata)
 
       expect(subject.has_update?).to be_nil
     end
@@ -136,7 +136,7 @@ describe Vagrant::Box, :skip_windows do
       }
       RAW
 
-      subject.stub(load_metadata: metadata)
+      allow(subject).to receive(:load_metadata).and_return(metadata)
 
       result = subject.has_update?
       expect(result).to_not be_nil
@@ -180,7 +180,7 @@ describe Vagrant::Box, :skip_windows do
       }
       RAW
 
-      subject.stub(load_metadata: metadata)
+      allow(subject).to receive(:load_metadata).and_return(metadata)
 
       result = subject.has_update?(">= 1.1, < 1.4")
       expect(result).to_not be_nil
@@ -256,8 +256,8 @@ describe Vagrant::Box, :skip_windows do
 
     it "raises an error if the download failed" do
       dl = double("downloader")
-      Vagrant::Util::Downloader.stub(new: dl)
-      dl.should_receive(:download!).and_raise(
+      allow(Vagrant::Util::Downloader).to receive(:new).and_return(dl)
+      expect(dl).to receive(:download!).and_raise(
         Vagrant::Errors::DownloaderError.new(message: "foo"))
 
       expect { subject.load_metadata }.
diff --git a/test/unit/vagrant/cli_test.rb b/test/unit/vagrant/cli_test.rb
index 17212659b..fb33ac62f 100644
--- a/test/unit/vagrant/cli_test.rb
+++ b/test/unit/vagrant/cli_test.rb
@@ -11,7 +11,7 @@ describe Vagrant::CLI do
   let(:env)     { iso_env.create_vagrant_env }
 
   before do
-    Vagrant.plugin("2").manager.stub(commands: commands)
+    allow(Vagrant.plugin("2").manager).to receive(:commands).and_return(commands)
   end
 
   describe "#execute" do
diff --git a/test/unit/vagrant/environment_test.rb b/test/unit/vagrant/environment_test.rb
index 26bdd1c1d..704a76779 100644
--- a/test/unit/vagrant/environment_test.rb
+++ b/test/unit/vagrant/environment_test.rb
@@ -31,8 +31,8 @@ describe Vagrant::Environment do
 
     before do
       m = Vagrant.plugin("2").manager
-      m.stub(hosts: plugin_hosts)
-      m.stub(host_capabilities: plugin_host_caps)
+      allow(m).to receive(:hosts).and_return(plugin_hosts)
+      allow(m).to receive(:host_capabilities).and_return(plugin_host_caps)
 
       # Detect the host
       env.vagrantfile <<-VF
@@ -160,7 +160,8 @@ describe Vagrant::Environment do
 
       it "moves the boxes into the new directory structure" do
         # Kind of hacky but avoids two instantiations of BoxCollection
-        Vagrant::Environment.any_instance.stub(boxes: double("boxes"))
+        allow(Vagrant::Environment).to receive(:boxes)
+          .and_return(double("boxes"))
 
         collection = double("collection")
         expect(Vagrant::BoxCollection).to receive(:new).with(
@@ -177,8 +178,8 @@ describe Vagrant::Environment do
 
     before do
       m = Vagrant.plugin("2").manager
-      m.stub(hosts: plugin_hosts)
-      m.stub(host_capabilities: plugin_host_caps)
+      allow(m).to receive(:hosts).and_return(plugin_hosts)
+      allow(m).to receive(:host_capabilities).and_return(plugin_host_caps)
     end
 
     it "should default to some host even if there are none" do
@@ -641,7 +642,7 @@ VF
       klass = double("machine_index")
       stub_const("Vagrant::MachineIndex", klass)
 
-      klass.should_receive(:new).with(any_args) do |path|
+      expect(klass).to receive(:new).with(any_args) do |path|
         expect(path.to_s.start_with?(subject.home_path.to_s)).to be(true)
         true
       end
@@ -759,7 +760,7 @@ VF
 
     before do
       m = Vagrant.plugin("2").manager
-      m.stub(providers: plugin_providers)
+      allow(m).to receive(:providers).and_return(plugin_providers)
     end
 
     it "is the highest matching usable provider" do
diff --git a/test/unit/vagrant/guest_test.rb b/test/unit/vagrant/guest_test.rb
index b819628c9..5f8181f7c 100644
--- a/test/unit/vagrant/guest_test.rb
+++ b/test/unit/vagrant/guest_test.rb
@@ -9,10 +9,10 @@ describe Vagrant::Guest do
   let(:guests)  { {} }
   let(:machine) do
     double("machine").tap do |m|
-      m.stub(inspect: "machine")
-      m.stub(config: double("config"))
-      m.config.stub(vm: double("vm_config"))
-      m.config.vm.stub(guest: nil)
+      allow(m).to receive(:inspect).and_return("machine")
+      allow(m).to receive(:config).and_return(double("config"))
+      allow(m.config).to receive(:vm).and_return(double("vm_config"))
+      allow(m.config.vm).to receive(:guest).and_return(nil)
     end
   end
 
@@ -47,7 +47,7 @@ describe Vagrant::Guest do
 
   describe "#detect!" do
     it "auto-detects if no explicit guest name given" do
-      machine.config.vm.stub(guest: nil)
+      allow(machine.config.vm).to receive(:guest).and_return(nil)
       expect(subject).to receive(:initialize_capabilities!).
         with(nil, guests, capabilities, machine)
 
@@ -55,7 +55,7 @@ describe Vagrant::Guest do
     end
 
     it "uses the explicit guest name if specified" do
-      machine.config.vm.stub(guest: :foo)
+      allow(machine.config.vm).to receive(:guest).and_return(:foo)
       expect(subject).to receive(:initialize_capabilities!).
         with(:foo, guests, capabilities, machine)
 
@@ -63,7 +63,7 @@ describe Vagrant::Guest do
     end
 
     it "raises a user-friendly error if specified guest doesn't exist" do
-      machine.config.vm.stub(guest: :foo)
+      allow(machine.config.vm).to receive(:guest).and_return(:foo)
 
       expect { subject.detect! }.
         to raise_error(Vagrant::Errors::GuestExplicitNotDetected)
diff --git a/test/unit/vagrant/machine_test.rb b/test/unit/vagrant/machine_test.rb
index fdb9aa090..6209fcdab 100644
--- a/test/unit/vagrant/machine_test.rb
+++ b/test/unit/vagrant/machine_test.rb
@@ -12,7 +12,7 @@ describe Vagrant::Machine do
   let(:provider) { new_provider_mock }
   let(:provider_cls) do
     obj = double("provider_cls")
-    obj.stub(new: provider)
+    allow(obj).to receive(:new).and_return(provider)
     obj
   end
   let(:provider_config) { Object.new }
@@ -21,9 +21,9 @@ describe Vagrant::Machine do
   let(:base)     { false }
   let(:box) do
     double("box").tap do |b|
-      b.stub(name: "foo")
-      b.stub(provider: :dummy)
-      b.stub(version: "1.0")
+      allow(b).to receive(:name).and_return("foo")
+      allow(b).to receive(:provider).and_return(:dummy)
+      allow(b).to receive(:version).and_return("1.0")
     end
   end
 
@@ -50,8 +50,8 @@ describe Vagrant::Machine do
 
   def new_provider_mock
     double("provider").tap do |obj|
-      obj.stub(_initialize: nil)
-      obj.stub(machine_id_changed: nil)
+      allow(obj).to receive(:_initialize).and_return(nil)
+      allow(obj).to receive(:machine_id_changed).and_return(nil)
       allow(obj).to receive(:state).and_return(Vagrant::MachineState.new(
         :created, "", ""))
     end
@@ -533,9 +533,9 @@ describe Vagrant::Machine do
 
       # Setup the box information
       box = double("box")
-      box.stub(name: "foo")
-      box.stub(provider: :bar)
-      box.stub(version: "1.2.3")
+      allow(box).to receive(:name).and_return("foo")
+      allow(box).to receive(:provider).and_return(:bar)
+      allow(box).to receive(:version).and_return("1.2.3")
       subject.box = box
 
       subject.id = "foo"
diff --git a/test/unit/vagrant/plugin/manager_test.rb b/test/unit/vagrant/plugin/manager_test.rb
index f982ca119..de42c7ec8 100644
--- a/test/unit/vagrant/plugin/manager_test.rb
+++ b/test/unit/vagrant/plugin/manager_test.rb
@@ -21,7 +21,7 @@ describe Vagrant::Plugin::Manager do
   end
 
   before do
-    Vagrant::Bundler.stub(instance: bundler)
+    allow(Vagrant::Bundler).to receive(:instance).and_return(bundler)
   end
 
   subject { described_class.new(path) }
@@ -152,7 +152,7 @@ describe Vagrant::Plugin::Manager do
       before do
         systems_path.unlink
 
-        described_class.stub(system_plugins_file: systems_path)
+        allow(described_class).to receive(:system_plugins_file).and_return(systems_path)
 
         sf = Vagrant::Plugin::StateFile.new(systems_path)
         sf.add_plugin("foo", version: "0.2.0")
@@ -230,7 +230,7 @@ describe Vagrant::Plugin::Manager do
       before do
         systems_path.unlink
 
-        described_class.stub(system_plugins_file: systems_path)
+        allow(described_class).to receive(:system_plugins_file).and_return(systems_path)
 
         sf = Vagrant::Plugin::StateFile.new(systems_path)
         sf.add_plugin("foo", version: "0.2.0")
diff --git a/test/unit/vagrant/plugin/v1/command_test.rb b/test/unit/vagrant/plugin/v1/command_test.rb
index 88647f16d..25bbb88ea 100644
--- a/test/unit/vagrant/plugin/v1/command_test.rb
+++ b/test/unit/vagrant/plugin/v1/command_test.rb
@@ -55,14 +55,14 @@ describe Vagrant::Plugin::V1::Command do
 
     let(:environment) do
       env = double("environment")
-      env.stub(root_path: "foo")
+      allow(env).to receive(:root_path).and_return("foo")
       env
     end
 
     let(:instance)    { klass.new([], environment) }
 
     it "should raise an exception if a root_path is not available" do
-      environment.stub(root_path: nil)
+      allow(environment).to receive(:root_path).and_return(nil)
 
       expect { instance.with_target_vms }.
         to raise_error(Vagrant::Errors::NoEnvironmentError)
@@ -75,9 +75,9 @@ describe Vagrant::Plugin::V1::Command do
       bar_vm = double("bar")
       allow(bar_vm).to receive(:name).and_return("bar")
 
-      environment.stub(multivm?: true,
-                       vms: { "foo" => foo_vm, "bar" => bar_vm },
-                       vms_ordered: [foo_vm, bar_vm])
+      allow(environment).to receive(:multivm?).and_return(true)
+      allow(environment).to receive(:vms).and_return({ "foo" => foo_vm, "bar" => bar_vm })
+      allow(environment).to receive(:vms_ordered).and_return([foo_vm, bar_vm])
 
       vms = []
       instance.with_target_vms do |vm|
@@ -88,7 +88,8 @@ describe Vagrant::Plugin::V1::Command do
     end
 
     it "raises an exception if the named VM doesn't exist" do
-      environment.stub(multivm?: true, vms: {})
+      allow(environment).to receive(:multivm?).and_return(true)
+      allow(environment).to receive(:vms).and_return({})
 
       expect { instance.with_target_vms("foo") }.
         to raise_error(Vagrant::Errors::VMNotFoundError)
@@ -98,8 +99,8 @@ describe Vagrant::Plugin::V1::Command do
       foo_vm = double("foo")
       allow(foo_vm).to receive(:name).and_return(:foo)
 
-      environment.stub(multivm?: true,
-                       vms: { foo: foo_vm, bar: nil })
+      allow(environment).to receive(:multivm?).and_return(true)
+      allow(environment).to receive(:vms).and_return({ foo: foo_vm, bar: nil })
 
       vms = []
       instance.with_target_vms("foo") { |vm| vms << vm }
diff --git a/test/unit/vagrant/plugin/v2/command_test.rb b/test/unit/vagrant/plugin/v2/command_test.rb
index fc6cc5271..555d3fbf1 100644
--- a/test/unit/vagrant/plugin/v2/command_test.rb
+++ b/test/unit/vagrant/plugin/v2/command_test.rb
@@ -78,7 +78,7 @@ describe Vagrant::Plugin::V2::Command do
     subject { instance }
 
     it "should raise an exception if a root_path is not available" do
-      environment.stub(root_path: nil)
+      allow(environment).to receive(:root_path).and_return(nil)
 
       expect { instance.with_target_vms }.
         to raise_error(Vagrant::Errors::NoEnvironmentError)
@@ -86,16 +86,18 @@ describe Vagrant::Plugin::V2::Command do
 
     it "should yield every VM in order if no name is given" do
       foo_vm = double("foo")
-      foo_vm.stub(name: "foo", provider: :foobarbaz)
-      foo_vm.stub(ui: Vagrant::UI::Silent.new)
-      foo_vm.stub(state: nil)
+      allow(foo_vm).to receive(:name).and_return("foo")
+      allow(foo_vm).to receive(:provider).and_return(:foobarbaz)
+      allow(foo_vm).to receive(:ui).and_return(Vagrant::UI::Silent.new)
+      allow(foo_vm).to receive(:state).and_return(nil)
 
       bar_vm = double("bar")
-      bar_vm.stub(name: "bar", provider: :foobarbaz)
-      bar_vm.stub(ui: Vagrant::UI::Silent.new)
-      bar_vm.stub(state: nil)
+      allow(bar_vm).to receive(:name).and_return("bar")
+      allow(bar_vm).to receive(:provider).and_return(:foobarbaz)
+      allow(bar_vm).to receive(:ui).and_return(Vagrant::UI::Silent.new)
+      allow(bar_vm).to receive(:state).and_return(nil)
 
-      environment.stub(machine_names: [:foo, :bar])
+      allow(environment).to receive(:machine_names).and_return([:foo, :bar])
       allow(environment).to receive(:machine).with(:foo, environment.default_provider).and_return(foo_vm)
       allow(environment).to receive(:machine).with(:bar, environment.default_provider).and_return(bar_vm)
 
@@ -108,7 +110,7 @@ describe Vagrant::Plugin::V2::Command do
     end
 
     it "raises an exception if the named VM doesn't exist" do
-      environment.stub(machine_names: [:default])
+      allow(environment).to receive(:machine_names).and_return([:default])
       allow(environment).to receive(:machine).with(:foo, anything).and_return(nil)
 
       expect { instance.with_target_vms("foo") }.
@@ -117,9 +119,10 @@ describe Vagrant::Plugin::V2::Command do
 
     it "yields the given VM if a name is given" do
       foo_vm = double("foo")
-      foo_vm.stub(name: "foo", provider: :foobarbaz)
-      foo_vm.stub(ui: Vagrant::UI::Silent.new)
-      foo_vm.stub(state: nil)
+      allow(foo_vm).to receive(:name).and_return("foo")
+      allow(foo_vm).to receive(:provider).and_return(:foobarbaz)
+      allow(foo_vm).to receive(:ui).and_return(Vagrant::UI::Silent.new)
+      allow(foo_vm).to receive(:state).and_return(nil)
 
       allow(environment).to receive(:machine).with(:foo, environment.default_provider).and_return(foo_vm)
 
@@ -130,9 +133,10 @@ describe Vagrant::Plugin::V2::Command do
 
     it "calls state after yielding the vm to update the machine index" do
       foo_vm = double("foo")
-      foo_vm.stub(name: "foo", provider: :foobarbaz)
-      foo_vm.stub(ui: Vagrant::UI::Silent.new)
-      foo_vm.stub(state: nil)
+      allow(foo_vm).to receive(:name).and_return("foo")
+      allow(foo_vm).to receive(:provider).and_return(:foobarbaz)
+      allow(foo_vm).to receive(:ui).and_return(Vagrant::UI::Silent.new)
+      allow(foo_vm).to receive(:state).and_return(nil)
 
       allow(environment).to receive(:machine).with(:foo, environment.default_provider).and_return(foo_vm)
 
@@ -145,9 +149,10 @@ describe Vagrant::Plugin::V2::Command do
       foo_vm = double("foo")
       provider = :foobarbaz
 
-      foo_vm.stub(name: "foo", provider: provider)
-      foo_vm.stub(ui: Vagrant::UI::Silent.new)
-      foo_vm.stub(state: nil)
+      allow(foo_vm).to receive(:name).and_return("foo")
+      allow(foo_vm).to receive(:provider).and_return(provider)
+      allow(foo_vm).to receive(:ui).and_return(Vagrant::UI::Silent.new)
+      allow(foo_vm).to receive(:state).and_return(nil)
       allow(environment).to receive(:machine).with(:foo, provider).and_return(foo_vm)
 
       vms = []
@@ -158,7 +163,7 @@ describe Vagrant::Plugin::V2::Command do
     it "should raise an exception if an active machine exists with a different provider" do
       name = :foo
 
-      environment.stub(active_machines: [[name, :vmware]])
+      allow(environment).to receive(:active_machines).and_return([[name, :vmware]])
       expect { instance.with_target_vms(name.to_s, provider: :foo) }.
         to raise_error Vagrant::Errors::ActiveMachineWithDifferentProvider
     end
@@ -168,11 +173,12 @@ describe Vagrant::Plugin::V2::Command do
       provider = :vmware
       vmware_vm = double("vmware_vm")
 
-      environment.stub(active_machines: [[name, provider]])
+      allow(environment).to receive(:active_machines).and_return([[name, provider]])
       allow(environment).to receive(:machine).with(name, provider).and_return(vmware_vm)
-      vmware_vm.stub(name: name, provider: provider)
-      vmware_vm.stub(ui: Vagrant::UI::Silent.new)
-      vmware_vm.stub(state: nil)
+      allow(vmware_vm).to receive(:name).and_return(name)
+      allow(vmware_vm).to receive(:provider).and_return(provider)
+      allow(vmware_vm).to receive(:ui).and_return(Vagrant::UI::Silent.new)
+      allow(vmware_vm).to receive(:state).and_return(nil)
 
       vms = []
       instance.with_target_vms(name.to_s) { |vm| vms << vm }
@@ -184,10 +190,12 @@ describe Vagrant::Plugin::V2::Command do
       provider = :vmware
       vmware_vm = double("vmware_vm")
 
-      environment.stub(active_machines: [[name, provider]])
+      allow(environment).to receive(:active_machines).and_return([[name, provider]])
       allow(environment).to receive(:machine).with(name, provider).and_return(vmware_vm)
-      vmware_vm.stub(name: name, provider: provider, ui: Vagrant::UI::Silent.new)
-      vmware_vm.stub(state: nil)
+      allow(vmware_vm).to receive(:name).and_return(name)
+      allow(vmware_vm).to receive(:provider).and_return(provider)
+      allow(vmware_vm).to receive(:ui).and_return(Vagrant::UI::Silent.new)
+      allow(vmware_vm).to receive(:state).and_return(nil)
 
       vms = []
       instance.with_target_vms(name.to_s, provider: provider) { |vm| vms << vm }
@@ -199,9 +207,10 @@ describe Vagrant::Plugin::V2::Command do
       machine = double("machine")
 
       allow(environment).to receive(:machine).with(name, environment.default_provider).and_return(machine)
-      machine.stub(name: name, provider: environment.default_provider)
-      machine.stub(ui: Vagrant::UI::Silent.new)
-      machine.stub(state: nil)
+      allow(machine).to receive(:name).and_return(name)
+      allow(machine).to receive(:provider).and_return(environment.default_provider)
+      allow(machine).to receive(:ui).and_return(Vagrant::UI::Silent.new)
+      allow(machine).to receive(:state).and_return(nil)
 
       results = []
       instance.with_target_vms(name.to_s) { |m| results << m }
@@ -213,13 +222,14 @@ describe Vagrant::Plugin::V2::Command do
       provider = :vmware
       vmware_vm = double("vmware_vm")
 
-      environment.stub(active_machines: [[name, provider]])
+      allow(environment).to receive(:active_machines).and_return([[name, provider]])
       allow(environment).to receive(:machine).with(name, provider).and_return(vmware_vm)
-      environment.stub(machine_names: [])
-      environment.stub(primary_machine_name: name)
-      vmware_vm.stub(name: name, provider: provider)
-      vmware_vm.stub(ui: Vagrant::UI::Silent.new)
-      vmware_vm.stub(state: nil)
+      allow(environment).to receive(:machine_names).and_return([])
+      allow(environment).to receive(:primary_machine_name).and_return(name)
+      allow(vmware_vm).to receive(:name).and_return(name)
+      allow(vmware_vm).to receive(:provider).and_return(provider)
+      allow(vmware_vm).to receive(:ui).and_return(Vagrant::UI::Silent.new)
+      allow(vmware_vm).to receive(:state).and_return(nil)
 
       vms = []
       instance.with_target_vms(nil, single_target: true) { |vm| vms << vm }
@@ -230,13 +240,14 @@ describe Vagrant::Plugin::V2::Command do
       name = :foo
       machine = double("machine")
 
-      environment.stub(active_machines: [])
+      allow(environment).to receive(:active_machines).and_return([])
       allow(environment).to receive(:machine).with(name, environment.default_provider).and_return(machine)
-      environment.stub(machine_names: [])
-      environment.stub(primary_machine_name: name)
-      machine.stub(name: name, provider: environment.default_provider)
-      machine.stub(ui: Vagrant::UI::Silent.new)
-      machine.stub(state: nil)
+      allow(environment).to receive(:machine_names).and_return([])
+      allow(environment).to receive(:primary_machine_name).and_return(name)
+      allow(machine).to receive(:name).and_return(name)
+      allow(machine).to receive(:provider).and_return(environment.default_provider)
+      allow(machine).to receive(:ui).and_return(Vagrant::UI::Silent.new)
+      allow(machine).to receive(:state).and_return(nil)
 
       vms = []
       instance.with_target_vms(nil, single_target: true) { |vm| vms << machine }
@@ -255,7 +266,7 @@ describe Vagrant::Plugin::V2::Command do
       other_machine.id = "foo"
 
       # Make sure we don't have a root path, to test
-      environment.stub(root_path: nil)
+      allow(environment).to receive(:root_path).and_return(nil)
 
       results = []
       subject.with_target_vms(other_machine.index_uuid) { |m| results << m }
@@ -282,7 +293,7 @@ describe Vagrant::Plugin::V2::Command do
       FileUtils.rm_rf(iso_env.workdir)
 
       # Make sure we don't have a root path, to test
-      environment.stub(root_path: nil)
+      allow(environment).to receive(:root_path).and_return(nil)
 
       # Run the command
       expect {
diff --git a/test/unit/vagrant/plugin/v2/plugin_test.rb b/test/unit/vagrant/plugin/v2/plugin_test.rb
index 85f472e0c..92a018863 100644
--- a/test/unit/vagrant/plugin/v2/plugin_test.rb
+++ b/test/unit/vagrant/plugin/v2/plugin_test.rb
@@ -2,7 +2,8 @@ require File.expand_path("../../../../base", __FILE__)
 
 describe Vagrant::Plugin::V2::Plugin do
   before do
-    described_class.stub(manager: Vagrant::Plugin::V2::Manager.new)
+    allow(described_class).to receive(:manager)
+      .and_return(Vagrant::Plugin::V2::Manager.new)
   end
 
   it "should be able to set and get the name" do
diff --git a/test/unit/vagrant/plugin/v2/provider_test.rb b/test/unit/vagrant/plugin/v2/provider_test.rb
index 3a3799de3..bb753b030 100644
--- a/test/unit/vagrant/plugin/v2/provider_test.rb
+++ b/test/unit/vagrant/plugin/v2/provider_test.rb
@@ -42,7 +42,7 @@ describe Vagrant::Plugin::V2::Provider do
         end
       end
 
-      machine.stub(id: "YEAH")
+      allow(machine).to receive(:id).and_return("YEAH")
 
       instance._initialize("foo", machine)
     end
diff --git a/test/unit/vagrant/shared_helpers_test.rb b/test/unit/vagrant/shared_helpers_test.rb
index 908e552a8..80cf51d3d 100644
--- a/test/unit/vagrant/shared_helpers_test.rb
+++ b/test/unit/vagrant/shared_helpers_test.rb
@@ -31,12 +31,12 @@ describe Vagrant do
 
   describe "#installer_embedded_dir" do
     it "returns nil if not in an installer" do
-      Vagrant.stub(in_installer?: false)
+      allow(Vagrant).to receive(:in_installer?).and_return(false)
       expect(subject.installer_embedded_dir).to be_nil
     end
 
     it "returns the set directory" do
-      Vagrant.stub(in_installer?: true)
+      allow(Vagrant).to receive(:in_installer?).and_return(true)
 
       with_temp_env("VAGRANT_INSTALLER_EMBEDDED_DIR" => "/foo") do
         expect(subject.installer_embedded_dir).to eq("/foo")
diff --git a/test/unit/vagrant/ui_test.rb b/test/unit/vagrant/ui_test.rb
index fdd75c5b5..856449b58 100644
--- a/test/unit/vagrant/ui_test.rb
+++ b/test/unit/vagrant/ui_test.rb
@@ -350,7 +350,7 @@ describe Vagrant::UI::Prefixed do
 
   describe "#opts" do
     it "is the parent's opts" do
-      ui.stub(opts: Object.new)
+      allow(ui).to receive(:opts).and_return(Object.new)
       expect(subject.opts).to be(ui.opts)
     end
   end
diff --git a/test/unit/vagrant/util/downloader_test.rb b/test/unit/vagrant/util/downloader_test.rb
index 9f61399bd..bbc797879 100644
--- a/test/unit/vagrant/util/downloader_test.rb
+++ b/test/unit/vagrant/util/downloader_test.rb
@@ -9,8 +9,8 @@ describe Vagrant::Util::Downloader do
 
   let(:subprocess_result) do
     double("subprocess_result").tap do |result|
-      result.stub(exit_code: exit_code)
-      result.stub(stderr: "")
+      allow(result).to receive(:exit_code).and_return(exit_code)
+      allow(result).to receive(:stderr).and_return("")
     end
   end
 
@@ -199,7 +199,7 @@ describe Vagrant::Util::Downloader do
     }
 
     it "returns the output" do
-      subprocess_result.stub(stdout: "foo")
+      allow(subprocess_result).to receive(:stdout).and_return("foo")
 
       options = curl_options.dup
       options.unshift("-I")
diff --git a/test/unit/vagrant_test.rb b/test/unit/vagrant_test.rb
index 0742526c4..c90091e80 100644
--- a/test/unit/vagrant_test.rb
+++ b/test/unit/vagrant_test.rb
@@ -69,7 +69,7 @@ describe Vagrant do
     it "finds plugins by gem name" do
       specs = [Gem::Specification.new]
       specs[0].name = "foo"
-      Vagrant::Plugin::Manager.instance.stub(installed_specs: specs)
+      allow(Vagrant::Plugin::Manager.instance).to receive(:installed_specs).and_return(specs)
 
       expect(described_class.has_plugin?("foo")).to be(true)
       expect(described_class.has_plugin?("bar")).to be(false)
@@ -79,7 +79,7 @@ describe Vagrant do
       specs = [Gem::Specification.new]
       specs[0].name = "foo"
       specs[0].version = "1.2.3"
-      Vagrant::Plugin::Manager.instance.stub(installed_specs: specs)
+      allow(Vagrant::Plugin::Manager.instance).to receive(:installed_specs).and_return(specs)
 
       expect(described_class.has_plugin?("foo", "~> 1.2.0")).to be(true)
       expect(described_class.has_plugin?("foo", "~> 1.0.0")).to be(false)