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