diff --git a/plugins/processors/rename/rename_test.go b/plugins/processors/rename/rename_test.go index b917e486b..46716d51e 100644 --- a/plugins/processors/rename/rename_test.go +++ b/plugins/processors/rename/rename_test.go @@ -1,6 +1,7 @@ package rename import ( + "sync" "testing" "time" @@ -8,6 +9,7 @@ import ( "github.com/influxdata/telegraf" "github.com/influxdata/telegraf/metric" + "github.com/influxdata/telegraf/testutil" ) func newMetric(name string, tags map[string]string, fields map[string]interface{}) telegraf.Metric { @@ -60,3 +62,68 @@ func TestFieldRename(t *testing.T) { require.Equal(t, map[string]interface{}{"time": int64(1250), "snakes": true}, results[0].Fields(), "should change field 'time_msec' to 'time'") } + +func TestTracking(t *testing.T) { + inputRaw := []telegraf.Metric{ + metric.New("foo", map[string]string{}, map[string]interface{}{"value": 42}, time.Unix(0, 0)), + metric.New("bar", map[string]string{}, map[string]interface{}{"value": 99}, time.Unix(0, 0)), + metric.New("baz", map[string]string{}, map[string]interface{}{"value": 11}, time.Unix(0, 0)), + } + + var mu sync.Mutex + delivered := make([]telegraf.DeliveryInfo, 0, len(inputRaw)) + notify := func(di telegraf.DeliveryInfo) { + mu.Lock() + defer mu.Unlock() + delivered = append(delivered, di) + } + + input := make([]telegraf.Metric, 0, len(inputRaw)) + for _, m := range inputRaw { + tm, _ := metric.WithTracking(m, notify) + input = append(input, tm) + } + + expected := []telegraf.Metric{ + metric.New( + "foo", + map[string]string{}, + map[string]interface{}{"new_value": 42}, + time.Unix(0, 0), + ), + metric.New( + "bar", + map[string]string{}, + map[string]interface{}{"new_value": 99}, + time.Unix(0, 0), + ), + metric.New( + "baz", + map[string]string{}, + map[string]interface{}{"new_value": 11}, + time.Unix(0, 0), + ), + } + + plugin := &Rename{ + Replaces: []Replace{ + {Field: "value", Dest: "new_value"}, + }, + } + + // Process expected metrics and compare with resulting metrics + actual := plugin.Apply(input...) + testutil.RequireMetricsEqual(t, expected, actual) + + // Simulate output acknowledging delivery + for _, m := range actual { + m.Accept() + } + + // Check delivery + require.Eventuallyf(t, func() bool { + mu.Lock() + defer mu.Unlock() + return len(expected) == len(delivered) + }, time.Second, 100*time.Millisecond, "%d delivered but %d expected", len(delivered), len(expected)) +}