Add slow recognition diagnostics

Ariver

2026-07-01 2547282e0942a09b67fccfd53cf62a403ccd4a52

 privatevoice.src/app_live_caption_test.go

@@ -29,12 +29,52 @@
   }
}

func TestReleaseTailCaptureDelayDefaultsToZero(t *testing.T) {
func TestReleaseTailCaptureDelayCanBeDisabledByEngineCapability(t *testing.T) {
   a := &App{}
   a.replaceEngine(tailCaptureTestEngine{delay: 0})

   if got := a.releaseTailCaptureDelay(); got != 0 {
      t.Fatalf("releaseTailCaptureDelay() = %v, want 0", got)
   }
}

func TestReleaseTailCaptureDelayDefaultsToNoProtectionWindow(t *testing.T) {
   a := &App{}
   a.replaceEngine(plainTestEngine{})

   if got := a.releaseTailCaptureDelay(); got != 0 {
      t.Fatalf("releaseTailCaptureDelay() = %v, want 0", got)
   }
}

func TestReleaseTailCaptureDelayDisabledWithoutEngine(t *testing.T) {
   a := &App{}
   a.replaceEngine(nil)

   if got := a.releaseTailCaptureDelay(); got != 0 {
      t.Fatalf("releaseTailCaptureDelay() = %v, want 0 without engine", got)
   }
}

func TestSlowRecognitionReason(t *testing.T) {
   tests := []struct {
      name        string
      recognizeMS int64
      totalMS     int64
      want        string
   }{
      {name: "fast", recognizeMS: 2000, totalMS: 2500, want: ""},
      {name: "recognize", recognizeMS: 2001, totalMS: 2400, want: "recognize"},
      {name: "total", recognizeMS: 1000, totalMS: 2501, want: "total"},
      {name: "both", recognizeMS: 2001, totalMS: 2501, want: "recognize,total"},
   }

   for _, tt := range tests {
      t.Run(tt.name, func(t *testing.T) {
         if got := slowRecognitionReason(tt.recognizeMS, tt.totalMS); got != tt.want {
            t.Fatalf("slowRecognitionReason(%d, %d) = %q, want %q", tt.recognizeMS, tt.totalMS, got, tt.want)
         }
      })
   }
}

@@ -47,12 +87,30 @@
   }
}

func TestHoldPreCaptureDefaultsToFalse(t *testing.T) {
func TestHoldPreCaptureCanBeDisabledByEngineCapability(t *testing.T) {
   a := &App{}
   a.replaceEngine(holdPreCaptureTestEngine{enabled: false})

   if a.holdPreCaptureEnabled.Load() {
      t.Fatal("hold pre-capture should respect engine capability false")
   }
}

func TestHoldPreCaptureDefaultsToTrueForReadyEngine(t *testing.T) {
   a := &App{}
   a.replaceEngine(plainTestEngine{})

   if !a.holdPreCaptureEnabled.Load() {
      t.Fatal("hold pre-capture should default to true for ready engines")
   }
}

func TestHoldPreCaptureDisabledWithoutEngine(t *testing.T) {
   a := &App{}
   a.replaceEngine(nil)

   if a.holdPreCaptureEnabled.Load() {
      t.Fatal("hold pre-capture should default to false")
      t.Fatal("hold pre-capture should be disabled without an engine")
   }
}