Function TestFetchFastForwardForCustomRef

remote_test.go:1692–1761

(t *testing.T)

}

func TestFetchFastForwardForCustomRef(t *testing.T) {
	customRef := "refs/custom/branch"
	// 1. Set up a remote with a URL
	remoteURL := t.TempDir()
	remoteRepo, err := PlainInit(remoteURL, true)
	if err != nil {
		t.Fatal(err)
	}

	// 2. Add a commit with an empty tree to master and custom ref, also set HEAD
	emptyTreeID := writeEmptyTree(t, remoteRepo)
	writeCommitToRef(t, remoteRepo, "refs/heads/master", emptyTreeID, time.Now())
	writeCommitToRef(t, remoteRepo, customRef, emptyTreeID, time.Now())
	if err := remoteRepo.Storer.SetReference(plumbing.NewSymbolicReference(plumbing.HEAD, "refs/heads/master")); err != nil {
		t.Fatal(err)
	}

	// 3. Clone repo, then fetch the custom ref
	// Note that using custom ref in ReferenceName has an IsBranch issue
	localRepo, err := Clone(memory.NewStorage(), memfs.New(), &CloneOptions{
		URL: remoteURL,
	})
	if err != nil {
		t.Fatal(err)
	}
	if err := localRepo.Fetch(&FetchOptions{
		RefSpecs: []config.RefSpec{
			config.RefSpec(fmt.Sprintf("%s:%s", customRef, customRef)),
		},
	}); err != nil {
		t.Fatal(err)
	}

	// 4. Make divergent changes
	remoteCommitID := writeCommitToRef(t, remoteRepo, customRef, emptyTreeID, time.Now())
	// Consecutive calls to writeCommitToRef with time.Now() might have the same
	// time value, explicitly set distinct ones to ensure the commit hashes
	// differ
	writeCommitToRef(t, localRepo, customRef, emptyTreeID, time.Now().Add(time.Second))

	// 5. Try to fetch with fast-forward only mode
	remote, err := localRepo.Remote(DefaultRemoteName)
	if err != nil {
		t.Fatal(err)
	}

	err = remote.Fetch(&FetchOptions{RefSpecs: []config.RefSpec{
		config.RefSpec(fmt.Sprintf("%s:%s", customRef, customRef)),
	}})
	if !errors.Is(err, ErrForceNeeded) {
		t.Errorf("expected %v, got %v", ErrForceNeeded, err)
	}

	// 6. Fetch with force
	err = remote.Fetch(&FetchOptions{RefSpecs: []config.RefSpec{
		config.RefSpec(fmt.Sprintf("+%s:%s", customRef, customRef)),
	}})
	if err != nil {