mirror of
https://github.com/open-telemetry/opentelemetry-go.git
synced 2025-01-12 02:28:07 +02:00
129 lines
3.8 KiB
Go
129 lines
3.8 KiB
Go
// Copyright The OpenTelemetry Authors
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package grpctrace
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import (
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"context"
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"fmt"
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"testing"
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"google.golang.org/grpc"
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"go.opentelemetry.io/otel/api/global"
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export "go.opentelemetry.io/otel/sdk/export/trace"
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sdktrace "go.opentelemetry.io/otel/sdk/trace"
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)
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type testExporter struct {
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spanMap map[string][]*export.SpanData
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}
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func (t *testExporter) ExportSpan(ctx context.Context, s *export.SpanData) {
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var spans []*export.SpanData
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var ok bool
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if spans, ok = t.spanMap[s.Name]; !ok {
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spans = []*export.SpanData{}
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t.spanMap[s.Name] = spans
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}
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spans = append(spans, s)
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t.spanMap[s.Name] = spans
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}
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type mockCCInvoker struct {
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ctx context.Context
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}
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func (mcci *mockCCInvoker) invoke(ctx context.Context, method string, req, reply interface{}, cc *grpc.ClientConn, opts ...grpc.CallOption) error {
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mcci.ctx = ctx
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return nil
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}
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type mockProtoMessage struct {
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}
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func (mm *mockProtoMessage) Reset() {}
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func (mm *mockProtoMessage) String() string { return "mock" }
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func (mm *mockProtoMessage) ProtoMessage() {}
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func TestUCIFullyQualifiedMethodNameSetsServiceNameAttribute(t *testing.T) {
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expectedServiceName := "serviceName"
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fullyQualifiedName := fmt.Sprintf("/foo.%s/bar", expectedServiceName)
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testUCISetsExpectedNameAttribute(t, fullyQualifiedName, expectedServiceName)
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}
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func TestUCISimpleMethodNameSetsServiceNameAttribute(t *testing.T) {
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expectedServiceName := "serviceName"
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simpleName := fmt.Sprintf("/%s/bar", expectedServiceName)
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testUCISetsExpectedNameAttribute(t, simpleName, expectedServiceName)
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}
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func TestUCIUnamedMethodSetsEmptyNameAttribute(t *testing.T) {
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expectedServiceName := ""
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emptyName := fmt.Sprintf("/%s/bar", expectedServiceName)
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testUCISetsExpectedNameAttribute(t, emptyName, expectedServiceName)
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}
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func TestUCILongMethodNameSetsServiceNameAttribute(t *testing.T) {
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expectedServiceName := "serviceName"
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emptyServiceFullName := fmt.Sprintf("/github.com/foo.baz/bar/foo.%s/bar", expectedServiceName)
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testUCISetsExpectedNameAttribute(t, emptyServiceFullName, expectedServiceName)
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}
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func testUCISetsExpectedNameAttribute(t *testing.T, fullServiceName, expectedServiceName string) {
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exp := &testExporter{make(map[string][]*export.SpanData)}
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tp, _ := sdktrace.NewProvider(sdktrace.WithSyncer(exp), sdktrace.WithConfig(sdktrace.Config{DefaultSampler: sdktrace.AlwaysSample()}))
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global.SetTraceProvider(tp)
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tr := tp.Tracer("grpctrace/client")
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ctx, span := tr.Start(context.Background(), "test")
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defer span.End()
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clientConn, err := grpc.Dial("fake:connection", grpc.WithInsecure())
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if err != nil {
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t.Fatalf("failed to create client connection: %v", err)
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}
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unaryInt := UnaryClientInterceptor(tr)
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req := &mockProtoMessage{}
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reply := &mockProtoMessage{}
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ccInvoker := &mockCCInvoker{}
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err = unaryInt(ctx, fullServiceName, req, reply, clientConn, ccInvoker.invoke)
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if err != nil {
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t.Fatalf("failed to run unary interceptor: %v", err)
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}
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attributes := exp.spanMap[fullServiceName][0].Attributes
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var actualServiceName string
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for _, attr := range attributes {
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if attr.Key == rpcServiceKey {
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actualServiceName = attr.Value.AsString()
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}
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}
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if expectedServiceName != actualServiceName {
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t.Fatalf("invalid service name found. expected %s, actual %s",
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expectedServiceName, actualServiceName)
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}
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}
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