| 1 | package main |
| 2 | |
| 3 | import ( |
| 4 | "context" |
| 5 | "sync" |
| 6 | "testing" |
| 7 | "time" |
| 8 | |
| 9 | "reasonix/internal/event" |
| 10 | ) |
| 11 | |
| 12 | // All tabEventSink context mutations go through the locked setContext / |
| 13 | // clearContext accessors (no bare s.ctx = ... writes that data-race the |
| 14 | // s.context() reads in emitRuntimeEvent). After clearContext the sink stops |
| 15 | // emitting — emitRuntimeEvent sees a nil ctx and no-ops — and the queued |
| 16 | // emitter is drained, so a detached/backgrounded session can't flush stale |
| 17 | // events onto the now-rebound tab (#5352: stale "AI 不断输出" on the visible |
| 18 | // session after rapid session switching). |
| 19 | func TestTabEventSinkClearContextStopsEmission(t *testing.T) { |
| 20 | var mu sync.Mutex |
| 21 | var emitted int |
| 22 | s := &tabEventSink{tabID: "t"} |
| 23 | s.runtimeEvents.emit = func(context.Context, string, ...any) { |
| 24 | mu.Lock() |
| 25 | emitted++ |
| 26 | mu.Unlock() |
| 27 | } |
| 28 | |
| 29 | s.setContext(context.Background()) |
| 30 | if s.context() == nil { |
| 31 | t.Fatal("setContext did not install the context") |
| 32 | } |
| 33 | |
| 34 | s.clearContext() |
| 35 | if s.context() != nil { |
| 36 | t.Fatal("clearContext did not clear the context") |
| 37 | } |
| 38 | |
| 39 | // An emit after clearContext must not reach the runtime bridge. |
| 40 | s.emitRuntimeEvent(eventChannel, toWireTab(event.Event{}, s.tabID)) |
| 41 | |
| 42 | mu.Lock() |
| 43 | defer mu.Unlock() |
| 44 | if emitted != 0 { |
| 45 | t.Fatalf("sink emitted %d events after clearContext, want 0", emitted) |
| 46 | } |
| 47 | } |
| 48 | |
| 49 | func TestTabEventSinkUsesBoundSessionGeneration(t *testing.T) { |
| 50 | sink := &tabEventSink{tabID: "tab", ctx: context.Background()} |
| 51 | sink.setSessionGeneration(7) |
| 52 | delivered := make(chan uint64, 1) |
| 53 | sink.runtimeEvents.emit = func(_ context.Context, name string, payload ...any) { |
| 54 | if name != eventChannel || len(payload) != 1 { |
| 55 | t.Fatalf("runtime event = %q/%d, want one %q event", name, len(payload), eventChannel) |
| 56 | } |
| 57 | wire, ok := payload[0].(wireEventTab) |
| 58 | if !ok { |
| 59 | t.Fatalf("payload type = %T, want wireEventTab", payload[0]) |
| 60 | } |
| 61 | delivered <- wire.SessionGeneration |
| 62 | } |
| 63 | sink.Emit(event.Event{Kind: event.Notice, Text: "late"}) |
| 64 | select { |
| 65 | case got := <-delivered: |
| 66 | if got != 7 { |
| 67 | t.Fatalf("event session generation = %d, want bound generation 7", got) |
| 68 | } |
| 69 | case <-time.After(time.Second): |
| 70 | t.Fatal("timed out waiting for sink event") |
| 71 | } |
| 72 | } |
| 73 |