package instrumental import ( "bufio" "net" "net/textproto" "sync" "testing" "time" "github.com/influxdata/telegraf" "github.com/stretchr/testify/assert" ) func TestWrite(t *testing.T) { var wg sync.WaitGroup wg.Add(1) go TCPServer(t, &wg) // Give the fake TCP server some time to start: time.Sleep(time.Millisecond * 100) i := Instrumental{ Host: "127.0.0.1", ApiToken: "abc123token", Prefix: "my.prefix", } // Default to gauge m1, _ := telegraf.NewMetric( "mymeasurement", map[string]string{"host": "192.168.0.1"}, map[string]interface{}{"myfield": float64(3.14)}, time.Date(2010, time.November, 10, 23, 0, 0, 0, time.UTC), ) m2, _ := telegraf.NewMetric( "mymeasurement", map[string]string{"host": "192.168.0.1", "metric_type": "set"}, map[string]interface{}{"value": float64(3.14)}, time.Date(2010, time.November, 10, 23, 0, 0, 0, time.UTC), ) metrics := []telegraf.Metric{m1, m2} i.Write(metrics) // Counter and Histogram are increments m3, _ := telegraf.NewMetric( "my_histogram", map[string]string{"host": "192.168.0.1", "metric_type": "histogram"}, map[string]interface{}{"value": float64(3.14)}, time.Date(2010, time.November, 10, 23, 0, 0, 0, time.UTC), ) // We will modify metric names that won't be accepted by Instrumental m4, _ := telegraf.NewMetric( "bad_metric_name", map[string]string{"host": "192.168.0.1:8888::123", "metric_type": "counter"}, map[string]interface{}{"value": 1}, time.Date(2010, time.November, 10, 23, 0, 0, 0, time.UTC), ) // We will drop metric values that won't be accepted by Instrumental m5, _ := telegraf.NewMetric( "bad_values", map[string]string{"host": "192.168.0.1", "metric_type": "counter"}, map[string]interface{}{"value": "\" 3:30\""}, time.Date(2010, time.November, 10, 23, 0, 0, 0, time.UTC), ) m6, _ := telegraf.NewMetric( "my_counter", map[string]string{"host": "192.168.0.1", "metric_type": "counter"}, map[string]interface{}{"value": float64(3.14)}, time.Date(2010, time.November, 10, 23, 0, 0, 0, time.UTC), ) metrics = []telegraf.Metric{m3, m4, m5, m6} i.Write(metrics) wg.Wait() } func TCPServer(t *testing.T, wg *sync.WaitGroup) { tcpServer, _ := net.Listen("tcp", "127.0.0.1:8000") defer wg.Done() conn, _ := tcpServer.Accept() conn.SetDeadline(time.Now().Add(1 * time.Second)) reader := bufio.NewReader(conn) tp := textproto.NewReader(reader) hello, _ := tp.ReadLine() assert.Equal(t, "hello version go/telegraf/1.1", hello) auth, _ := tp.ReadLine() assert.Equal(t, "authenticate abc123token", auth) conn.Write([]byte("ok\nok\n")) data1, _ := tp.ReadLine() assert.Equal(t, "gauge my.prefix.192_168_0_1.mymeasurement.myfield 3.14 1289430000", data1) data2, _ := tp.ReadLine() assert.Equal(t, "gauge my.prefix.192_168_0_1.mymeasurement 3.14 1289430000", data2) conn, _ = tcpServer.Accept() conn.SetDeadline(time.Now().Add(1 * time.Second)) reader = bufio.NewReader(conn) tp = textproto.NewReader(reader) hello, _ = tp.ReadLine() assert.Equal(t, "hello version go/telegraf/1.1", hello) auth, _ = tp.ReadLine() assert.Equal(t, "authenticate abc123token", auth) conn.Write([]byte("ok\nok\n")) data3, _ := tp.ReadLine() assert.Equal(t, "increment my.prefix.192_168_0_1.my_histogram 3.14 1289430000", data3) data4, _ := tp.ReadLine() assert.Equal(t, "increment my.prefix.192_168_0_1_8888_123.bad_metric_name 1 1289430000", data4) data5, _ := tp.ReadLine() assert.Equal(t, "increment my.prefix.192_168_0_1.my_counter 3.14 1289430000", data5) data6, _ := tp.ReadLine() assert.Equal(t, "", data6) conn.Close() }