terraform/internal/command/state_show_test.go
2026-02-17 13:56:34 +00:00

419 lines
11 KiB
Go

// Copyright IBM Corp. 2014, 2026
// SPDX-License-Identifier: BUSL-1.1
package command
import (
"bytes"
"strings"
"testing"
"github.com/hashicorp/cli"
"github.com/hashicorp/terraform/internal/addrs"
"github.com/hashicorp/terraform/internal/configs/configschema"
"github.com/hashicorp/terraform/internal/providers"
"github.com/hashicorp/terraform/internal/states"
"github.com/hashicorp/terraform/internal/states/statefile"
"github.com/hashicorp/terraform/internal/terminal"
"github.com/zclconf/go-cty/cty"
)
func TestStateShow(t *testing.T) {
state := states.BuildState(func(s *states.SyncState) {
s.SetResourceInstanceCurrent(
addrs.Resource{
Mode: addrs.ManagedResourceMode,
Type: "test_instance",
Name: "foo",
}.Instance(addrs.NoKey).Absolute(addrs.RootModuleInstance),
&states.ResourceInstanceObjectSrc{
AttrsJSON: []byte(`{"id":"bar","foo":"value","bar":"value"}`),
Status: states.ObjectReady,
},
addrs.AbsProviderConfig{
Provider: addrs.NewDefaultProvider("test"),
Module: addrs.RootModule,
},
)
})
statePath := testStateFile(t, state)
p := testProvider()
p.GetProviderSchemaResponse = &providers.GetProviderSchemaResponse{
ResourceTypes: map[string]providers.Schema{
"test_instance": {
Body: &configschema.Block{
Attributes: map[string]*configschema.Attribute{
"id": {Type: cty.String, Optional: true, Computed: true},
"foo": {Type: cty.String, Optional: true},
"bar": {Type: cty.String, Optional: true},
},
},
},
},
}
streams, done := terminal.StreamsForTesting(t)
c := &StateShowCommand{
Meta: Meta{
testingOverrides: metaOverridesForProvider(p),
Streams: streams,
},
}
args := []string{
"-state", statePath,
"test_instance.foo",
}
code := c.Run(args)
output := done(t)
if code != 0 {
t.Fatalf("bad: %d\n\n%s", code, output.Stderr())
}
// Test that outputs were displayed
expected := strings.TrimSpace(testStateShowOutput) + "\n"
actual := output.Stdout()
if actual != expected {
t.Fatalf("Expected:\n%q\n\nTo equal:\n%q", actual, expected)
}
}
func TestStateShow_errorMarshallingState(t *testing.T) {
state := states.BuildState(func(s *states.SyncState) {
s.SetResourceInstanceCurrent(
addrs.Resource{
Mode: addrs.ManagedResourceMode,
Type: "test_instance",
Name: "foo_invalid",
}.Instance(addrs.NoKey).Absolute(addrs.RootModuleInstance),
&states.ResourceInstanceObjectSrc{
// The error is caused by the state containing attributes that don't
// match the schema for the resource.
AttrsJSON: []byte(`{"non_existent_attr":"I'm gonna cause an error!"}`),
Status: states.ObjectReady,
},
addrs.AbsProviderConfig{
Provider: addrs.NewDefaultProvider("test"),
Module: addrs.RootModule,
},
)
})
statePath := testStateFile(t, state)
p := testProvider()
p.GetProviderSchemaResponse = &providers.GetProviderSchemaResponse{
ResourceTypes: map[string]providers.Schema{
"test_instance": {
Body: &configschema.Block{
Attributes: map[string]*configschema.Attribute{
"id": {Type: cty.String, Optional: true, Computed: true},
"foo": {Type: cty.String, Optional: true},
"bar": {Type: cty.String, Optional: true},
},
},
},
},
}
streams, done := terminal.StreamsForTesting(t)
c := &StateShowCommand{
Meta: Meta{
testingOverrides: metaOverridesForProvider(p),
Streams: streams,
},
}
args := []string{
"-state", statePath,
"test_instance.foo_invalid",
}
code := c.Run(args)
output := done(t)
if code != 1 {
t.Fatalf("unexpected code: %d\n\n%s", code, output.Stdout())
}
// Test that error outputs were displayed
expected := "unsupported attribute \"non_existent_attr\""
actual := output.Stderr()
if !strings.Contains(actual, expected) {
t.Fatalf("Expected stderr output to include:\n%q\n\n Instead got:\n%q", expected, actual)
}
}
func TestStateShow_multi(t *testing.T) {
submod, _ := addrs.ParseModuleInstanceStr("module.sub")
state := states.BuildState(func(s *states.SyncState) {
s.SetResourceInstanceCurrent(
addrs.Resource{
Mode: addrs.ManagedResourceMode,
Type: "test_instance",
Name: "foo",
}.Instance(addrs.NoKey).Absolute(addrs.RootModuleInstance),
&states.ResourceInstanceObjectSrc{
AttrsJSON: []byte(`{"id":"bar","foo":"value","bar":"value"}`),
Status: states.ObjectReady,
},
addrs.AbsProviderConfig{
Provider: addrs.NewDefaultProvider("test"),
Module: addrs.RootModule,
},
)
s.SetResourceInstanceCurrent(
addrs.Resource{
Mode: addrs.ManagedResourceMode,
Type: "test_instance",
Name: "foo",
}.Instance(addrs.NoKey).Absolute(submod),
&states.ResourceInstanceObjectSrc{
AttrsJSON: []byte(`{"id":"foo","foo":"value","bar":"value"}`),
Status: states.ObjectReady,
},
addrs.AbsProviderConfig{
Provider: addrs.NewDefaultProvider("test"),
Module: submod.Module(),
},
)
})
statePath := testStateFile(t, state)
p := testProvider()
p.GetProviderSchemaResponse = &providers.GetProviderSchemaResponse{
ResourceTypes: map[string]providers.Schema{
"test_instance": {
Body: &configschema.Block{
Attributes: map[string]*configschema.Attribute{
"id": {Type: cty.String, Optional: true, Computed: true},
"foo": {Type: cty.String, Optional: true},
"bar": {Type: cty.String, Optional: true},
},
},
},
},
}
streams, done := terminal.StreamsForTesting(t)
c := &StateShowCommand{
Meta: Meta{
testingOverrides: metaOverridesForProvider(p),
Streams: streams,
},
}
args := []string{
"-state", statePath,
"test_instance.foo",
}
code := c.Run(args)
output := done(t)
if code != 0 {
t.Fatalf("bad: %d\n\n%s", code, output.Stderr())
}
// Test that outputs were displayed
expected := strings.TrimSpace(testStateShowOutput) + "\n"
actual := output.Stdout()
if actual != expected {
t.Fatalf("Expected:\n%q\n\nTo equal:\n%q", actual, expected)
}
}
func TestStateShow_noState(t *testing.T) {
tmp := t.TempDir()
t.Chdir(tmp)
p := testProvider()
streams, done := terminal.StreamsForTesting(t)
c := &StateShowCommand{
Meta: Meta{
testingOverrides: metaOverridesForProvider(p),
Streams: streams,
},
}
args := []string{
"test_instance.foo",
}
if code := c.Run(args); code != 1 {
t.Fatalf("bad: %d", code)
}
output := done(t)
if !strings.Contains(output.Stderr(), "No state file was found!") {
t.Fatalf("expected a no state file error, got: %s", output.Stderr())
}
}
func TestStateShow_emptyState(t *testing.T) {
state := states.NewState()
statePath := testStateFile(t, state)
p := testProvider()
streams, done := terminal.StreamsForTesting(t)
c := &StateShowCommand{
Meta: Meta{
testingOverrides: metaOverridesForProvider(p),
Streams: streams,
},
}
args := []string{
"-state", statePath,
"test_instance.foo",
}
if code := c.Run(args); code != 1 {
t.Fatalf("bad: %d", code)
}
output := done(t)
if !strings.Contains(output.Stderr(), "No instance found for the given address!") {
t.Fatalf("expected a no instance found error, got: %s", output.Stderr())
}
}
func TestStateShow_configured_provider(t *testing.T) {
state := states.BuildState(func(s *states.SyncState) {
s.SetResourceInstanceCurrent(
addrs.Resource{
Mode: addrs.ManagedResourceMode,
Type: "test_instance",
Name: "foo",
}.Instance(addrs.NoKey).Absolute(addrs.RootModuleInstance),
&states.ResourceInstanceObjectSrc{
AttrsJSON: []byte(`{"id":"bar","foo":"value","bar":"value"}`),
Status: states.ObjectReady,
},
addrs.AbsProviderConfig{
Provider: addrs.NewDefaultProvider("test-beta"),
Module: addrs.RootModule,
},
)
})
statePath := testStateFile(t, state)
p := testProvider()
p.GetProviderSchemaResponse = &providers.GetProviderSchemaResponse{
ResourceTypes: map[string]providers.Schema{
"test_instance": {
Body: &configschema.Block{
Attributes: map[string]*configschema.Attribute{
"id": {Type: cty.String, Optional: true, Computed: true},
"foo": {Type: cty.String, Optional: true},
"bar": {Type: cty.String, Optional: true},
},
},
},
},
}
streams, done := terminal.StreamsForTesting(t)
c := &StateShowCommand{
Meta: Meta{
testingOverrides: &testingOverrides{
Providers: map[addrs.Provider]providers.Factory{
addrs.NewDefaultProvider("test-beta"): providers.FactoryFixed(p),
},
},
Streams: streams,
},
}
args := []string{
"-state", statePath,
"test_instance.foo",
}
code := c.Run(args)
output := done(t)
if code != 0 {
t.Fatalf("bad: %d\n\n%s", code, output.Stderr())
}
// Test that outputs were displayed
expected := strings.TrimSpace(testStateShowOutput) + "\n"
actual := output.Stdout()
if actual != expected {
t.Fatalf("Expected:\n%q\n\nTo equal:\n%q", actual, expected)
}
}
// Tests using `terraform state show` subcommand in combination with pluggable state storage
//
// Note: Whereas other tests in this file use the local backend and require a state file in the test fixures,
// with pluggable state storage we can define the state via the mocked provider.
func TestStateShow_stateStore(t *testing.T) {
// Create a temporary working directory that is empty
td := t.TempDir()
testCopyDir(t, testFixturePath("state-store-unchanged"), td)
t.Chdir(td)
// Get bytes describing a state containing a resource
state := states.NewState()
rootModule := state.RootModule()
rootModule.SetResourceInstanceCurrent(
addrs.Resource{
Mode: addrs.ManagedResourceMode,
Type: "test_instance",
Name: "foo",
}.Instance(addrs.NoKey),
&states.ResourceInstanceObjectSrc{
Status: states.ObjectReady,
AttrsJSON: []byte(`{
"input": "foobar"
}`),
},
addrs.AbsProviderConfig{
Provider: addrs.NewDefaultProvider("test"),
Module: addrs.RootModule,
},
)
var stateBuf bytes.Buffer
if err := statefile.Write(statefile.New(state, "", 1), &stateBuf); err != nil {
t.Fatalf("error during test setup: %s", err)
}
// Create a mock that contains a persisted "default" state that uses the bytes from above.
mockProvider := mockPluggableStateStorageProvider()
mockProvider.MockStates = map[string]interface{}{
"default": stateBuf.Bytes(),
}
mockProviderAddress := addrs.NewDefaultProvider("test")
ui := cli.NewMockUi()
streams, done := terminal.StreamsForTesting(t)
c := &StateShowCommand{
Meta: Meta{
AllowExperimentalFeatures: true,
testingOverrides: &testingOverrides{
Providers: map[addrs.Provider]providers.Factory{
mockProviderAddress: providers.FactoryFixed(mockProvider),
},
},
Ui: ui,
Streams: streams,
},
}
// `terraform show` command specifying a given resource addr
expectedResourceAddr := "test_instance.foo"
args := []string{expectedResourceAddr}
code := c.Run(args)
output := done(t)
if code != 0 {
t.Fatalf("bad: %d\n\n%s", code, output.Stderr())
}
// Test that outputs were displayed
expected := "# test_instance.foo:\nresource \"test_instance\" \"foo\" {\n input = \"foobar\"\n}\n"
actual := output.Stdout()
if actual != expected {
t.Fatalf("Expected:\n%q\n\nTo equal: %q", actual, expected)
}
}
const testStateShowOutput = `
# test_instance.foo:
resource "test_instance" "foo" {
bar = "value"
foo = "value"
id = "bar"
}
`