Extract publication recovery observation

internal/git/remote_test.go

@@ -42,6 +42,46 @@ func TestResolveUsesPushURLAndQueriesWithoutMutation(t *testing.T) {
 	}
 }
 
+func TestObserveEndpointUsesCapturedURLAndCurrentNamedTransportSettings(t *testing.T) {
+	repo := newRemoteFixture(t)
+	gitRun(t, repo.work, "remote", "remove", "origin")
+	gitRun(t, repo.work, "config", "remote.renamed.receivepack", "git-receive-pack")
+	endpoint, err := ObserveEndpoint(context.Background(), repo.work, repo.bare, "renamed")
+	if err != nil {
+		t.Fatal(err)
+	}
+	if endpoint.PushURL != repo.bare || len(endpoint.transport) != 1 || endpoint.transport[0] != "remote."+endpoint.ScopedName+".receivepack=git-receive-pack" {
+		t.Fatalf("observed endpoint = %#v", endpoint)
+	}
+	ref, err := endpoint.QueryTag(context.Background(), repo.work, "v1.2.3")
+	if err != nil || ref.State != RefAbsent {
+		t.Fatalf("QueryTag() = %#v, %v", ref, err)
+	}
+}
+
+func TestObserveEndpointDoesNotSelectOriginWithoutAName(t *testing.T) {
+	repo := newRemoteFixture(t)
+	gitRun(t, repo.work, "config", "remote.origin.receivepack", "custom-receive-pack")
+	endpoint, err := ObserveEndpoint(context.Background(), repo.work, repo.bare, "")
+	if err != nil {
+		t.Fatal(err)
+	}
+	if len(endpoint.transport) != 0 {
+		t.Fatalf("transport settings = %v; unnamed endpoint must not select origin", endpoint.transport)
+	}
+}
+
+func TestObserveEndpointRejectsCapturedURLRewriting(t *testing.T) {
+	repo := newRemoteFixture(t)
+	replacement := filepath.Join(t.TempDir(), "replacement.git")
+	gitRun(t, repo.work, "init", "--bare", replacement)
+	gitRun(t, repo.work, "config", "url."+replacement+".insteadOf", repo.bare)
+	_, err := ObserveEndpoint(context.Background(), repo.work, repo.bare, "")
+	if !errors.Is(err, ErrEndpointChanged) {
+		t.Fatalf("ObserveEndpoint() error = %v, want ErrEndpointChanged", err)
+	}
+}
+
 func TestRemoteTagOperationsAcceptSlashContainingRefs(t *testing.T) {
 	fixture := newRemoteFixture(t)
 	endpoint, err := Resolve(context.Background(), fixture.work, "origin")