telegraf/plugins/outputs/stackdriver/stackdriver_test.go

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2018-10-16 18:47:10 +00:00
package stackdriver
import (
"context"
"fmt"
"log"
"net"
"os"
"strings"
"testing"
monitoring "cloud.google.com/go/monitoring/apiv3"
"github.com/golang/protobuf/proto"
emptypb "github.com/golang/protobuf/ptypes/empty"
"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)
}
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: "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"},
}
labels := getStackdriverLabels(tags)
require.Equal(t, QuotaLabelsPerMetricDescriptor, len(labels))
}