| 1 | package main |
| 2 | |
| 3 | import ( |
| 4 | "context" |
| 5 | "errors" |
| 6 | "sync" |
| 7 | "testing" |
| 8 | ) |
| 9 | |
| 10 | func TestConcurrentActivateTopicSerializesSingleSurfacePruning(t *testing.T) { |
| 11 | isolateDesktopUserDirs(t) |
| 12 | app := NewApp() |
| 13 | t.Cleanup(func() { app.shutdown(context.Background()) }) |
| 14 | |
| 15 | topics := []string{ |
| 16 | "topic-a", |
| 17 | "topic-b", |
| 18 | "topic-c", |
| 19 | "topic-d", |
| 20 | "topic-e", |
| 21 | "topic-f", |
| 22 | "topic-g", |
| 23 | "topic-h", |
| 24 | } |
| 25 | start := make(chan struct{}) |
| 26 | errs := make(chan error, len(topics)) |
| 27 | var wg sync.WaitGroup |
| 28 | for _, topicID := range topics { |
| 29 | wg.Add(1) |
| 30 | go func(topicID string) { |
| 31 | defer wg.Done() |
| 32 | <-start |
| 33 | _, err := app.ActivateTopic("global", "", topicID, "") |
| 34 | errs <- err |
| 35 | }(topicID) |
| 36 | } |
| 37 | close(start) |
| 38 | wg.Wait() |
| 39 | close(errs) |
| 40 | |
| 41 | succeeded := 0 |
| 42 | for err := range errs { |
| 43 | if err == nil { |
| 44 | succeeded++ |
| 45 | } else if !errors.Is(err, errSessionNavigationSuperseded) { |
| 46 | t.Fatalf("ActivateTopic returned error under concurrent navigation: %v", err) |
| 47 | } |
| 48 | } |
| 49 | if succeeded == 0 { |
| 50 | t.Fatal("every request was superseded; the latest navigation must succeed") |
| 51 | } |
| 52 | tabs := app.ListTabs() |
| 53 | if len(tabs) != 1 { |
| 54 | t.Fatalf("ListTabs returned %d tabs after single-surface navigation, want 1: %+v", len(tabs), tabs) |
| 55 | } |
| 56 | if !tabs[0].Active { |
| 57 | t.Fatalf("remaining tab is not active: %+v", tabs[0]) |
| 58 | } |
| 59 | } |
| 60 |