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mirror of https://github.com/open-telemetry/opentelemetry-go.git synced 2024-12-14 10:13:10 +02:00
opentelemetry-go/internal/trace/mock_span.go
rghetia 83935b2558
Add propagator interface and W3C propagator (#85)
* add propagation api.

* add http propagator interface and w3c propagator implementation.

* remove Extract api from trace.

* remove Extract interface for tracer.

* fix copyright.

* fix variable names and comments.

* move inject/extract out of trace.

* replace INVALID_SPAN_CONTEXT with EmptySpanContext function.

* fix tag.Map.

* make carrier as interface instead of http.Request.

* rename structs and update doc comments..

* add doc.go

* update doc.

* add noop propagator.

* add new propagation api with Supplier interface.
- added Default Tracer which simply propagates SpanContext.
- added CopyOfRemote option to simply create remote span.

* remove old propagator.

* rename propagator to TextFormatPropagator.

* rename default tracer/span as pass_through tracer/span.

* add test for pass through tracer.

* add missing interface to pass through tracer.

* return SpanContext instead of contex.Context from Extract interface.
- also remove PassThroughTracer

* fix review comments.

* add more test cases for traceContext extraction.

* remove tidy temporarily from circle-ci target to avoid build failure.

* allow header ending in dash '-'.

* add inject test for non-zero value other than 01 for traceoption

* add AddLink and Link interface to MockSpan

* fix running go mod tidy on every build.
2019-09-23 11:51:32 -07:00

97 lines
2.4 KiB
Go

// Copyright 2019, 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 trace
import (
"context"
"google.golang.org/grpc/codes"
"go.opentelemetry.io/api/core"
"go.opentelemetry.io/api/tag"
apitrace "go.opentelemetry.io/api/trace"
)
// MockSpan is a mock span used in association with MockTracer for testing purpose only.
type MockSpan struct {
sc core.SpanContext
tracer apitrace.Tracer
}
var _ apitrace.Span = (*MockSpan)(nil)
// SpanContext returns associated core.SpanContext. If the receiver is nil it returns
// an empty core.SpanContext
func (ms *MockSpan) SpanContext() core.SpanContext {
if ms == nil {
core.EmptySpanContext()
}
return ms.sc
}
// IsRecordingEvents always returns false for MockSpan.
func (ms *MockSpan) IsRecordingEvents() bool {
return false
}
// SetStatus does nothing.
func (ms *MockSpan) SetStatus(status codes.Code) {
}
// SetError does nothing.
func (ms *MockSpan) SetError(v bool) {
}
// SetAttribute does nothing.
func (ms *MockSpan) SetAttribute(attribute core.KeyValue) {
}
// SetAttributes does nothing.
func (ms *MockSpan) SetAttributes(attributes ...core.KeyValue) {
}
// ModifyAttribute does nothing.
func (ms *MockSpan) ModifyAttribute(mutator tag.Mutator) {
}
// ModifyAttributes does nothing.
func (ms *MockSpan) ModifyAttributes(mutators ...tag.Mutator) {
}
// Finish does nothing.
func (ms *MockSpan) Finish(options ...apitrace.FinishOption) {
}
// SetName does nothing.
func (ms *MockSpan) SetName(name string) {
}
// Tracer returns MockTracer implementation of Tracer.
func (ms *MockSpan) Tracer() apitrace.Tracer {
return ms.tracer
}
// AddEvent does nothing.
func (ms *MockSpan) AddEvent(ctx context.Context, msg string, attrs ...core.KeyValue) {
}
// AddLink does nothing.
func (ms *MockSpan) AddLink(link apitrace.Link) {
}
// Link does nothing.
func (ms *MockSpan) Link(sc core.SpanContext, attrs ...core.KeyValue) {
}