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package main
import (
"bytes"
"os"
"path/filepath"
"strings"
"testing"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
)
const _changelog = `
# Changelog
All notable changes to this project will be documented in this file.
The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
## Unreleased
### Added
- Upcoming feature
## [1.0.0] - 2021-08-18
Initial stable release.
[1.0.0]: http://example.com/1.0.0
## 0.3.0 - 2020-09-01
### Removed
- deprecated functionality
### Fixed
- bug
## [0.2.0] - 2020-08-19
### Added
- Fancy new feature.
[0.2.0]: http://example.com/0.2.0
## 0.1.0 - 2020-08-18
Initial release.
`
func TestMain(t *testing.T) {
t.Parallel()
changelog := filepath.Join(t.TempDir(), "CHANGELOG.md")
require.NoError(t,
os.WriteFile(changelog, []byte(_changelog), 0o644))
tests := []struct {
desc string
version string
want string // expected changelog
wantErr string // expected error, if any
}{
{
desc: "not found",
version: "0.1.1",
wantErr: `changelog for "0.1.1" not found`,
},
{
desc: "missing version",
wantErr: "please provide a version",
},
{
desc: "non-standard body",
version: "1.0.0",
want: joinLines(
"## [1.0.0] - 2021-08-18",
"Initial stable release.",
"",
"[1.0.0]: http://example.com/1.0.0",
),
},
{
desc: "unlinked",
version: "0.3.0",
want: joinLines(
"## 0.3.0 - 2020-09-01",
"### Removed",
"- deprecated functionality",
"",
"### Fixed",
"- bug",
),
},
{
desc: "end of file",
version: "0.1.0",
want: joinLines(
"## 0.1.0 - 2020-08-18",
"",
"Initial release.",
),
},
{
desc: "linked",
version: "0.2.0",
want: joinLines(
"## [0.2.0] - 2020-08-19",
"### Added",
"- Fancy new feature.",
"",
"[0.2.0]: http://example.com/0.2.0",
),
},
}
for _, tt := range tests {
tt := tt
t.Run(tt.desc, func(t *testing.T) {
t.Parallel()
var stdout, stderr bytes.Buffer
defer func() {
assert.Empty(t, stderr.String(), "stderr should be empty")
}()
err := (&mainCmd{
Stdout: &stdout,
Stderr: &stderr,
}).Run([]string{"-i", changelog, tt.version})
if len(tt.wantErr) > 0 {
require.Error(t, err)
assert.Contains(t, err.Error(), tt.wantErr)
return
}
require.NoError(t, err)
assert.Equal(t, tt.want, stdout.String())
})
}
}
// Join a bunch of lines with a trailing newline.
func joinLines(lines ...string) string {
return strings.Join(lines, "\n") + "\n"
}
|
