func vcsErrorf(format string, a ...any) error {
	return &VCSError{Err: fmt.Errorf(format, a...)}
}

type vcsCacheKey struct {
	vcs    string
	remote string
}

func NewRepo(ctx context.Context, vcs, remote string) (Repo, error) {
	return vcsRepoCache.Do(vcsCacheKey{vcs, remote}, func() (Repo, error) {
		repo, err := newVCSRepo(ctx, vcs, remote)
		if err != nil {
			return nil, &VCSError{err}
		}

			Strategy.PrepareForUpdate(context.TODO(), tc.newEPS, tc.oldEPS)
			if !apiequality.Semantic.DeepEqual(tc.newEPS, tc.expectedEPS) {
				t.Errorf("Expected %+v\nGot: %+v", tc.expectedEPS, tc.newEPS)
			}
		})
	}
}

func Test_dropTopologyOnV1(t *testing.T) {
	testcases := []struct {
		name        string
		v1Request   bool
		newEPS      *discovery.EndpointSlice
		originalEPS *discovery.EndpointSlice