| 1 | package main |
| 2 | |
| 3 | import ( |
| 4 | "context" |
| 5 | "sync" |
| 6 | "testing" |
| 7 | |
| 8 | "reasonix/internal/event" |
| 9 | ) |
| 10 | |
| 11 | // All tabEventSink context mutations go through the locked setContext / |
| 12 | // clearContext accessors (no bare s.ctx = ... writes that data-race the |
| 13 | // s.context() reads in emitRuntimeEvent). After clearContext the sink stops |
| 14 | // emitting — emitRuntimeEvent sees a nil ctx and no-ops — and the queued |
| 15 | // emitter is drained, so a detached/backgrounded session can't flush stale |
| 16 | // events onto the now-rebound tab (#5352: stale "AI 不断输出" on the visible |
| 17 | // session after rapid session switching). |
| 18 | func TestTabEventSinkClearContextStopsEmission(t *testing.T) { |
| 19 | var mu sync.Mutex |
| 20 | var emitted int |
| 21 | s := &tabEventSink{tabID: "t"} |
| 22 | s.runtimeEvents.emit = func(context.Context, string, ...interface{}) { |
| 23 | mu.Lock() |
| 24 | emitted++ |
| 25 | mu.Unlock() |
| 26 | } |
| 27 | |
| 28 | s.setContext(context.Background()) |
| 29 | if s.context() == nil { |
| 30 | t.Fatal("setContext did not install the context") |
| 31 | } |
| 32 | |
| 33 | s.clearContext() |
| 34 | if s.context() != nil { |
| 35 | t.Fatal("clearContext did not clear the context") |
| 36 | } |
| 37 | |
| 38 | // An emit after clearContext must not reach the runtime bridge. |
| 39 | s.emitRuntimeEvent(eventChannel, toWireTab(event.Event{}, s.tabID)) |
| 40 | |
| 41 | mu.Lock() |
| 42 | defer mu.Unlock() |
| 43 | if emitted != 0 { |
| 44 | t.Fatalf("sink emitted %d events after clearContext, want 0", emitted) |
| 45 | } |
| 46 | } |
| 47 |