package stackdriver import ( "context" "errors" "fmt" "log" "net" "os" "strings" "testing" "time" monitoring "cloud.google.com/go/monitoring/apiv3" "github.com/golang/protobuf/proto" emptypb "github.com/golang/protobuf/ptypes/empty" googlepb "github.com/golang/protobuf/ptypes/timestamp" "github.com/influxdata/telegraf" "github.com/influxdata/telegraf/testutil" "github.com/stretchr/testify/require" "google.golang.org/api/option" monitoringpb "google.golang.org/genproto/googleapis/monitoring/v3" "google.golang.org/grpc" "google.golang.org/grpc/metadata" ) // clientOpt is the option tests should use to connect to the test server. // It is initialized by TestMain. var clientOpt option.ClientOption var mockMetric mockMetricServer type mockMetricServer struct { // Embed for forward compatibility. // Tests will keep working if more methods are added // in the future. monitoringpb.MetricServiceServer reqs []proto.Message // If set, all calls return this error. err error // responses to return if err == nil resps []proto.Message } func (s *mockMetricServer) CreateTimeSeries(ctx context.Context, req *monitoringpb.CreateTimeSeriesRequest) (*emptypb.Empty, error) { md, _ := metadata.FromIncomingContext(ctx) if xg := md["x-goog-api-client"]; len(xg) == 0 || !strings.Contains(xg[0], "gl-go/") { return nil, fmt.Errorf("x-goog-api-client = %v, expected gl-go key", xg) } s.reqs = append(s.reqs, req) if s.err != nil { return nil, s.err } return s.resps[0].(*emptypb.Empty), nil } func TestMain(m *testing.M) { serv := grpc.NewServer() monitoringpb.RegisterMetricServiceServer(serv, &mockMetric) lis, err := net.Listen("tcp", "localhost:0") if err != nil { log.Fatal(err) } go serv.Serve(lis) conn, err := grpc.Dial(lis.Addr().String(), grpc.WithInsecure()) if err != nil { log.Fatal(err) } clientOpt = option.WithGRPCConn(conn) os.Exit(m.Run()) } func TestWrite(t *testing.T) { expectedResponse := &emptypb.Empty{} mockMetric.err = nil mockMetric.reqs = nil mockMetric.resps = append(mockMetric.resps[:0], expectedResponse) c, err := monitoring.NewMetricClient(context.Background(), clientOpt) if err != nil { t.Fatal(err) } s := &Stackdriver{ Project: fmt.Sprintf("projects/%s", "[PROJECT]"), Namespace: "test", client: c, } err = s.Connect() require.NoError(t, err) err = s.Write(testutil.MockMetrics()) require.NoError(t, err) request := mockMetric.reqs[0].(*monitoringpb.CreateTimeSeriesRequest) require.Equal(t, request.TimeSeries[0].Resource.Type, "global") require.Equal(t, request.TimeSeries[0].Resource.Labels["project_id"], "projects/[PROJECT]") } func TestWriteResourceTypeAndLabels(t *testing.T) { expectedResponse := &emptypb.Empty{} mockMetric.err = nil mockMetric.reqs = nil mockMetric.resps = append(mockMetric.resps[:0], expectedResponse) c, err := monitoring.NewMetricClient(context.Background(), clientOpt) if err != nil { t.Fatal(err) } s := &Stackdriver{ Project: fmt.Sprintf("projects/%s", "[PROJECT]"), Namespace: "test", ResourceType: "foo", ResourceLabels: map[string]string{ "mylabel": "myvalue", }, client: c, } err = s.Connect() require.NoError(t, err) err = s.Write(testutil.MockMetrics()) require.NoError(t, err) request := mockMetric.reqs[0].(*monitoringpb.CreateTimeSeriesRequest) require.Equal(t, request.TimeSeries[0].Resource.Type, "foo") require.Equal(t, request.TimeSeries[0].Resource.Labels["project_id"], "projects/[PROJECT]") require.Equal(t, request.TimeSeries[0].Resource.Labels["mylabel"], "myvalue") } func TestWriteAscendingTime(t *testing.T) { expectedResponse := &emptypb.Empty{} mockMetric.err = nil mockMetric.reqs = nil mockMetric.resps = append(mockMetric.resps[:0], expectedResponse) c, err := monitoring.NewMetricClient(context.Background(), clientOpt) if err != nil { t.Fatal(err) } s := &Stackdriver{ Project: fmt.Sprintf("projects/%s", "[PROJECT]"), Namespace: "test", client: c, } // Metrics in descending order of timestamp metrics := []telegraf.Metric{ testutil.MustMetric("cpu", map[string]string{}, map[string]interface{}{ "value": 42, }, time.Unix(2, 0), ), testutil.MustMetric("cpu", map[string]string{}, map[string]interface{}{ "value": 43, }, time.Unix(1, 0), ), } err = s.Connect() require.NoError(t, err) err = s.Write(metrics) require.NoError(t, err) require.Len(t, mockMetric.reqs, 2) request := mockMetric.reqs[0].(*monitoringpb.CreateTimeSeriesRequest) require.Len(t, request.TimeSeries, 1) ts := request.TimeSeries[0] require.Len(t, ts.Points, 1) require.Equal(t, ts.Points[0].Interval, &monitoringpb.TimeInterval{ EndTime: &googlepb.Timestamp{ Seconds: 1, }, }) require.Equal(t, ts.Points[0].Value, &monitoringpb.TypedValue{ Value: &monitoringpb.TypedValue_Int64Value{ Int64Value: int64(43), }, }) request = mockMetric.reqs[1].(*monitoringpb.CreateTimeSeriesRequest) require.Len(t, request.TimeSeries, 1) ts = request.TimeSeries[0] require.Len(t, ts.Points, 1) require.Equal(t, ts.Points[0].Interval, &monitoringpb.TimeInterval{ EndTime: &googlepb.Timestamp{ Seconds: 2, }, }) require.Equal(t, ts.Points[0].Value, &monitoringpb.TypedValue{ Value: &monitoringpb.TypedValue_Int64Value{ Int64Value: int64(42), }, }) } func TestWriteIgnoredErrors(t *testing.T) { tests := []struct { name string err error expectedErr bool }{ { name: "points too old", err: errors.New(errStringPointsTooOld), }, { name: "points out of order", err: errors.New(errStringPointsOutOfOrder), }, { name: "points too frequent", err: errors.New(errStringPointsTooFrequent), }, { name: "other errors reported", err: errors.New("test"), expectedErr: true, }, } for _, tt := range tests { t.Run(tt.name, func(t *testing.T) { mockMetric.err = tt.err mockMetric.reqs = nil c, err := monitoring.NewMetricClient(context.Background(), clientOpt) if err != nil { t.Fatal(err) } s := &Stackdriver{ Project: fmt.Sprintf("projects/%s", "[PROJECT]"), Namespace: "test", client: c, } err = s.Connect() require.NoError(t, err) err = s.Write(testutil.MockMetrics()) if tt.expectedErr { require.Error(t, err) } else { require.NoError(t, err) } }) } } func TestGetStackdriverLabels(t *testing.T) { tags := []*telegraf.Tag{ {Key: "project", Value: "bar"}, {Key: "discuss", Value: "revolutionary"}, {Key: "marble", Value: "discount"}, {Key: "applied", Value: "falsify"}, {Key: "test", Value: "foo"}, {Key: "porter", Value: "discount"}, {Key: "play", Value: "tiger"}, {Key: "fireplace", Value: "display"}, {Key: "host", Value: "this"}, {Key: "name", Value: "bat"}, {Key: "device", Value: "local"}, {Key: "reserve", Value: "publication"}, {Key: "xpfqacltlmpguimhtjlou2qlmf9uqqwk3teajwlwqkoxtsppbnjksaxvzc1aa973pho9m96gfnl5op8ku7sv93rexyx42qe3zty12ityv", Value: "keyquota"}, {Key: "valuequota", Value: "icym5wcpejnhljcvy2vwk15svmhrtueoppwlvix61vlbaeedufn1g6u4jgwjoekwew9s2dboxtgrkiyuircnl8h1lbzntt9gzcf60qunhxurhiz0g2bynzy1v6eyn4ravndeiiugobsrsj2bfaguahg4gxn7nx4irwfknunhkk6jdlldevawj8levebjajcrcbeugewd14fa8o34ycfwx2ymalyeqxhfqrsksxnii2deqq6cghrzi6qzwmittkzdtye3imoygqmjjshiskvnzz1e4ipd9c6wfor5jsygn1kvcg6jm4clnsl1fnxotbei9xp4swrkjpgursmfmkyvxcgq9hoy435nwnolo3ipnvdlhk6pmlzpdjn6gqi3v9gv7jn5ro2p1t5ufxzfsvqq1fyrgoi7gvmttil1banh3cftkph1dcoaqfhl7y0wkvhwwvrmslmmxp1wedyn8bacd7akmjgfwdvcmrymbzvmrzfvq1gs1xnmmg8rsfxci2h6r1ralo3splf4f3bdg4c7cy0yy9qbxzxhcmdpwekwc7tdjs8uj6wmofm2aor4hum8nwyfwwlxy3yvsnbjy32oucsrmhcnu6l2i8laujkrhvsr9fcix5jflygznlydbqw5uhw1rg1g5wiihqumwmqgggemzoaivm3ut41vjaff4uqtqyuhuwblmuiphfkd7si49vgeeswzg7tpuw0oxmkesgibkcjtev2h9ouxzjs3eb71jffhdacyiuyhuxwvm5bnrjewbm4x2kmhgbirz3eoj7ijgplggdkx5vixufg65ont8zi1jabsuxx0vsqgprunwkugqkxg2r7iy6fmgs4lob4dlseinowkst6gp6x1ejreauyzjz7atzm3hbmr5rbynuqp4lxrnhhcbuoun69mavvaaki0bdz5ybmbbbz5qdv0odtpjo2aezat5uosjuhzbvic05jlyclikynjgfhencdkz3qcqzbzhnsynj1zdke0sk4zfpvfyryzsxv9pu0qm"}, } labels := getStackdriverLabels(tags) require.Equal(t, QuotaLabelsPerMetricDescriptor, len(labels)) }