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opentelemetry-go/bridge/opentracing/test/bridge_grpc_test.go
Yuri Shkuro 68975917e5
[bridge/ot] Fall-back to TextMap carrier when it's not ot.HttpHeaders (#3679)
* [bridge/ot] Fall-back to TextMap carrier when it's not ot.HttpHeaders

Signed-off-by: Yuri Shkuro <github@ysh.us>

* changelog

* go mod tidy

* format

* fix deps

* delint

* simplify

* undo

* Fix changelog

* Move new tests under test/

* go fmt

* delint

Signed-off-by: Yuri Shkuro <github@ysh.us>

---------

Signed-off-by: Yuri Shkuro <github@ysh.us>
Co-authored-by: Chester Cheung <cheung.zhy.csu@gmail.com>
2023-02-14 08:01:55 -08:00

100 lines
3.1 KiB
Go

// Copyright The OpenTelemetry Authors
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package test
import (
"context"
"net"
"testing"
"time"
otgrpc "github.com/opentracing-contrib/go-grpc"
testpb "github.com/opentracing-contrib/go-grpc/test/otgrpc_testing"
ot "github.com/opentracing/opentracing-go"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
"google.golang.org/grpc"
"google.golang.org/grpc/credentials/insecure"
ototel "go.opentelemetry.io/otel/bridge/opentracing"
"go.opentelemetry.io/otel/bridge/opentracing/internal"
"go.opentelemetry.io/otel/propagation"
)
type testGRPCServer struct{}
func (*testGRPCServer) UnaryCall(ctx context.Context, r *testpb.SimpleRequest) (*testpb.SimpleResponse, error) {
return &testpb.SimpleResponse{Payload: r.Payload * 2}, nil
}
func (*testGRPCServer) StreamingOutputCall(*testpb.SimpleRequest, testpb.TestService_StreamingOutputCallServer) error {
return nil
}
func (*testGRPCServer) StreamingInputCall(testpb.TestService_StreamingInputCallServer) error {
return nil
}
func (*testGRPCServer) StreamingBidirectionalCall(testpb.TestService_StreamingBidirectionalCallServer) error {
return nil
}
func startTestGRPCServer(t *testing.T, tracer ot.Tracer) (*grpc.Server, net.Addr) {
lis, _ := net.Listen("tcp", ":0")
server := grpc.NewServer(
grpc.UnaryInterceptor(otgrpc.OpenTracingServerInterceptor(tracer)),
)
testpb.RegisterTestServiceServer(server, &testGRPCServer{})
go func() {
err := server.Serve(lis)
require.NoError(t, err)
}()
return server, lis.Addr()
}
func TestBridgeTracer_ExtractAndInject_gRPC(t *testing.T) {
tracer := internal.NewMockTracer()
bridge := ototel.NewBridgeTracer()
bridge.SetOpenTelemetryTracer(tracer)
bridge.SetTextMapPropagator(propagation.TraceContext{})
srv, addr := startTestGRPCServer(t, bridge)
defer srv.Stop()
conn, err := grpc.Dial(
addr.String(),
grpc.WithTransportCredentials(insecure.NewCredentials()),
grpc.WithUnaryInterceptor(otgrpc.OpenTracingClientInterceptor(bridge)),
)
require.NoError(t, err)
cli := testpb.NewTestServiceClient(conn)
ctx, cx := context.WithTimeout(context.Background(), 10*time.Second)
defer cx()
res, err := cli.UnaryCall(ctx, &testpb.SimpleRequest{Payload: 42})
require.NoError(t, err)
assert.EqualValues(t, 84, res.Payload)
checkSpans := func() bool {
return len(tracer.FinishedSpans) == 2
}
require.Eventuallyf(t, checkSpans, 5*time.Second, 5*time.Millisecond, "expecting two spans")
assert.Equal(t,
tracer.FinishedSpans[0].SpanContext().TraceID(),
tracer.FinishedSpans[1].SpanContext().TraceID(),
"expecting same trace ID",
)
}