Function testAlternates

storage/filesystem/dotgit/dotgit_test.go:863–944

(t *testing.T, dotFS, altFS billy.Filesystem)

}

func testAlternates(t *testing.T, dotFS, altFS billy.Filesystem) {
	tests := []struct {
		name      string
		in        []string
		inWindows []string
		setup     func()
		wantErr   bool
		wantRoots []string
	}{
		{
			name: "no alternates",
		},
		{
			name:      "abs path",
			in:        []string{filepath.Join(altFS.Root(), "./repo1/.git/objects")},
			inWindows: []string{filepath.Join(altFS.Root(), ".\\repo1\\.git\\objects")},
			setup: func() {
				err := altFS.MkdirAll(filepath.Join("repo1", ".git", "objects"), 0o700)
				assert.NoError(t, err)
			},
			wantRoots: []string{filepath.Join("repo1", ".git")},
		},
		{
			name:      "rel path",
			in:        []string{"../../../repo3//.git/objects"},
			inWindows: []string{"..\\..\\..\\repo3\\.git\\objects"},
			setup: func() {
				err := altFS.MkdirAll(filepath.Join("repo3", ".git", "objects"), 0o700)
				assert.NoError(t, err)
			},
			wantRoots: []string{filepath.Join("repo3", ".git")},
		},
		{
			name:      "invalid abs path",
			in:        []string{"/alt/target2"},
			inWindows: []string{"\\alt\\target2"},
			wantErr:   true,
		},
		{
			name:      "invalid rel path",
			in:        []string{"../../../alt/target3"},
			inWindows: []string{"..\\..\\..\\alt\\target3"},
			wantErr:   true,
		},
	}

	for _, tc := range tests {
		t.Run(tc.name, func(t *testing.T) {
			dir := NewWithOptions(dotFS, Options{AlternatesFS: altFS})
			err := dir.Initialize()
			assert.NoError(t, err)

			content := strings.Join(tc.in, "\n")
			if runtime.GOOS == "windows" {
				content = strings.Join(tc.inWindows, "\r\n")
			}

			// Create alternates file.