fix(executors): periodicalexecutor should handle crash correctly (#3043)

core/executors/periodicalexecutor_test.go

@@ -108,6 +108,64 @@ func TestPeriodicalExecutor_Bulk(t *testing.T) {
 	lock.Unlock()
 }
 
+func TestPeriodicalExecutor_Panic(t *testing.T) {
+	// avoid data race
+	var lock sync.Mutex
+	ticker := timex.NewFakeTicker()
+
+	var (
+		executedTasks []int
+		expected      []int
+	)
+	executor := NewPeriodicalExecutor(time.Millisecond, newContainer(time.Millisecond, func(tasks any) {
+		tt := tasks.([]int)
+		lock.Lock()
+		executedTasks = append(executedTasks, tt...)
+		lock.Unlock()
+		if tt[0] == 0 {
+			panic("test")
+		}
+	}))
+	executor.newTicker = func(duration time.Duration) timex.Ticker {
+		return ticker
+	}
+	for i := 0; i < 30; i++ {
+		executor.Add(i)
+		expected = append(expected, i)
+	}
+	ticker.Tick()
+	ticker.Tick()
+	time.Sleep(time.Millisecond)
+	lock.Lock()
+	assert.Equal(t, expected, executedTasks)
+	lock.Unlock()
+}
+
+func TestPeriodicalExecutor_FlushPanic(t *testing.T) {
+	var (
+		executedTasks []int
+		expected      []int
+		lock          sync.Mutex
+	)
+	executor := NewPeriodicalExecutor(time.Millisecond, newContainer(time.Millisecond, func(tasks any) {
+		tt := tasks.([]int)
+		lock.Lock()
+		executedTasks = append(executedTasks, tt...)
+		lock.Unlock()
+		if tt[0] == 0 {
+			panic("flush panic")
+		}
+	}))
+	for i := 0; i < 8; i++ {
+		executor.Add(i)
+		expected = append(expected, i)
+	}
+	executor.Flush()
+	lock.Lock()
+	assert.Equal(t, expected, executedTasks)
+	lock.Unlock()
+}
+
 func TestPeriodicalExecutor_Wait(t *testing.T) {
 	var lock sync.Mutex
 	executer := NewBulkExecutor(func(tasks []any) {
@@ -151,13 +209,7 @@ func TestPeriodicalExecutor_Deadlock(t *testing.T) {
 }
 
 func TestPeriodicalExecutor_hasTasks(t *testing.T) {
-	ticker := timex.NewFakeTicker()
-	defer ticker.Stop()
-
 	exec := NewPeriodicalExecutor(time.Millisecond, newContainer(time.Millisecond, nil))
-	exec.newTicker = func(d time.Duration) timex.Ticker {
-		return ticker
-	}
 	assert.False(t, exec.hasTasks(nil))
 	assert.True(t, exec.hasTasks(1))
 }