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`Option[T]` currently exposes a method `Value()` which is permitted to be called on an option that has a value, and an option that doesn't have a value. This API is awkward because the behaviour if the option doesn't have a value isn't clear to the caller, and, because almost all accesses end up being `.Has()?` then `OK, use .Value()`. `Get() (bool, T)` is added as a better replacement, which both returns whether the option has a value, and the value if present. Most call-sites are rewritten to this form. `ValueOrZeroValue()` is a direct replacement that has the same behaviour that `Value()` had, but describes the behaviour if the value is missing. In addition to the current API being awkward, the core reason for this change is that `Value()` conflicts with the `Value()` function from the `driver.Valuer` interface. If this interface was implemented, it would allow `Option[T]` to be used to represent a nullable field in an xorm bean struct (requires: https://code.forgejo.org/xorm/xorm/pulls/66). _Note:_ changes are extensive in this PR, but are almost all changes are easy, mechanical transitions from `.Has()` to `.Get()`. All of this work was performed by hand. ## Checklist The [contributor guide](https://forgejo.org/docs/next/contributor/) contains information that will be helpful to first time contributors. There also are a few [conditions for merging Pull Requests in Forgejo repositories](https://codeberg.org/forgejo/governance/src/branch/main/PullRequestsAgreement.md). You are also welcome to join the [Forgejo development chatroom](https://matrix.to/#/#forgejo-development:matrix.org). ### Tests - I added test coverage for Go changes... - [ ] in their respective `*_test.go` for unit tests. - [ ] in the `tests/integration` directory if it involves interactions with a live Forgejo server. - I added test coverage for JavaScript changes... - [ ] in `web_src/js/*.test.js` if it can be unit tested. - [ ] in `tests/e2e/*.test.e2e.js` if it requires interactions with a live Forgejo server (see also the [developer guide for JavaScript testing](https://codeberg.org/forgejo/forgejo/src/branch/forgejo/tests/e2e/README.md#end-to-end-tests)). ### Documentation - [ ] I created a pull request [to the documentation](https://codeberg.org/forgejo/docs) to explain to Forgejo users how to use this change. - [x] I did not document these changes and I do not expect someone else to do it. ### Release notes - [ ] This change will be noticed by a Forgejo user or admin (feature, bug fix, performance, etc.). I suggest to include a release note for this change. - [x] This change is not visible to a Forgejo user or admin (refactor, dependency upgrade, etc.). I think there is no need to add a release note for this change. *The decision if the pull request will be shown in the release notes is up to the mergers / release team.* The content of the `release-notes/<pull request number>.md` file will serve as the basis for the release notes. If the file does not exist, the title of the pull request will be used instead. Reviewed-on: https://codeberg.org/forgejo/forgejo/pulls/11218 Reviewed-by: Otto <otto@codeberg.org> Reviewed-by: Gusted <gusted@noreply.codeberg.org> Co-authored-by: Mathieu Fenniak <mathieu@fenniak.net> Co-committed-by: Mathieu Fenniak <mathieu@fenniak.net>
75 lines
2.1 KiB
Go
75 lines
2.1 KiB
Go
// Copyright 2024 The Gitea Authors. All rights reserved.
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// SPDX-License-Identifier: MIT
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package optional_test
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import (
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"testing"
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"forgejo.org/modules/optional"
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"github.com/stretchr/testify/assert"
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)
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func TestOption(t *testing.T) {
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var uninitialized optional.Option[int]
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assert.False(t, uninitialized.Has())
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assert.Equal(t, int(0), uninitialized.ValueOrZeroValue())
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assert.Equal(t, int(1), uninitialized.ValueOrDefault(1))
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none := optional.None[int]()
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assert.False(t, none.Has())
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assert.Equal(t, int(0), none.ValueOrZeroValue())
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assert.Equal(t, int(1), none.ValueOrDefault(1))
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some := optional.Some(1)
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assert.True(t, some.Has())
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assert.Equal(t, int(1), some.ValueOrZeroValue())
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assert.Equal(t, int(1), some.ValueOrDefault(2))
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noneBool := optional.None[bool]()
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assert.False(t, noneBool.Has())
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assert.False(t, noneBool.ValueOrZeroValue())
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assert.True(t, noneBool.ValueOrDefault(true))
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someBool := optional.Some(true)
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assert.True(t, someBool.Has())
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assert.True(t, someBool.ValueOrZeroValue())
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assert.True(t, someBool.ValueOrDefault(false))
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var ptr *int
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assert.False(t, optional.FromPtr(ptr).Has())
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int1 := 1
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opt1 := optional.FromPtr(&int1)
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assert.True(t, opt1.Has())
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_, v := opt1.Get()
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assert.Equal(t, int(1), v)
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assert.False(t, optional.FromNonDefault("").Has())
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opt2 := optional.FromNonDefault("test")
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assert.True(t, opt2.Has())
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_, vStr := opt2.Get()
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assert.Equal(t, "test", vStr)
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assert.False(t, optional.FromNonDefault(0).Has())
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opt3 := optional.FromNonDefault(1)
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assert.True(t, opt3.Has())
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_, v = opt3.Get()
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assert.Equal(t, int(1), v)
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}
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func Test_ParseBool(t *testing.T) {
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assert.Equal(t, optional.None[bool](), optional.ParseBool(""))
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assert.Equal(t, optional.None[bool](), optional.ParseBool("x"))
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assert.Equal(t, optional.Some(false), optional.ParseBool("0"))
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assert.Equal(t, optional.Some(false), optional.ParseBool("f"))
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assert.Equal(t, optional.Some(false), optional.ParseBool("False"))
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assert.Equal(t, optional.Some(true), optional.ParseBool("1"))
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assert.Equal(t, optional.Some(true), optional.ParseBool("t"))
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assert.Equal(t, optional.Some(true), optional.ParseBool("True"))
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}
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