forked from jaegertracing/jaeger-client-go
/
observer_test.go
115 lines (99 loc) · 3.31 KB
/
observer_test.go
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// Copyright (c) 2017 Uber Technologies, Inc.
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
package jaeger
import (
"testing"
opentracing "github.com/opentracing/opentracing-go"
"github.com/opentracing/opentracing-go/ext"
"github.com/stretchr/testify/assert"
)
func TestEmptyObserver(t *testing.T) {
tracer, closer := NewTracer("test", NewConstSampler(true), NewInMemoryReporter())
defer closer.Close()
s := tracer.StartSpan("test", ext.RPCServerOption(nil))
s.Finish()
assert.Equal(t, s.(*Span).observer, noopSpanObserver)
}
func TestObservers(t *testing.T) {
tracer, closer := NewTracer(
"test",
NewConstSampler(true),
NewInMemoryReporter(),
TracerOptions.Observer(testObserver{}),
TracerOptions.Observer(testObserver{}),
)
defer closer.Close()
s := tracer.StartSpan("test", ext.RPCServerOption(nil))
forEachObs := func(f func(so *testSpanObserver)) {
observers := s.(*Span).observer.(*compositeSpanObserver).observers
assert.Len(t, observers, 2)
for _, so := range observers {
f(so.(*testSpanObserver))
}
}
forEachObs(func(so *testSpanObserver) {
assert.Equal(t, testSpanObserver{
operationName: "test",
tags: map[string]interface{}{
"span.kind": ext.SpanKindRPCServerEnum,
},
}, *so)
})
s.SetOperationName("test2")
s.SetTag("bender", "rodriguez")
forEachObs(func(so *testSpanObserver) {
assert.Equal(t, testSpanObserver{
operationName: "test2",
tags: map[string]interface{}{
"span.kind": ext.SpanKindRPCServerEnum,
"bender": "rodriguez",
},
}, *so)
})
s.Finish()
forEachObs(func(so *testSpanObserver) {
assert.True(t, so.finished)
})
}
type testObserver struct{}
type testSpanObserver struct {
operationName string
tags map[string]interface{}
finished bool
}
func (o testObserver) OnStartSpan(operationName string, options opentracing.StartSpanOptions) SpanObserver {
tags := make(map[string]interface{})
for k, v := range options.Tags {
tags[k] = v
}
return &testSpanObserver{
operationName: operationName,
tags: tags,
}
}
func (o *testSpanObserver) OnSetOperationName(operationName string) {
o.operationName = operationName
}
func (o *testSpanObserver) OnSetTag(key string, value interface{}) {
o.tags[key] = value
}
func (o *testSpanObserver) OnFinish(options opentracing.FinishOptions) {
o.finished = true
}