dendrite/vendor/src/github.com/jaegertracing/jaeger-client-go/context_test.go
2018-06-18 05:44:25 -07:00

111 lines
3.7 KiB
Go

// Copyright (c) 2017 Uber Technologies, Inc.
//
// 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 jaeger
import (
"testing"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
)
func TestContextFromString(t *testing.T) {
var err error
_, err = ContextFromString("")
assert.Error(t, err)
_, err = ContextFromString("abcd")
assert.Error(t, err)
_, err = ContextFromString("x:1:1:1")
assert.Error(t, err)
_, err = ContextFromString("1:x:1:1")
assert.Error(t, err)
_, err = ContextFromString("1:1:x:1")
assert.Error(t, err)
_, err = ContextFromString("1:1:1:x")
assert.Error(t, err)
_, err = ContextFromString("1:1:1:x")
assert.Error(t, err)
_, err = ContextFromString("01234567890123456789012345678901234:1:1:1")
assert.Error(t, err)
_, err = ContextFromString("01234567890123456789012345678901:1:1:1")
assert.NoError(t, err)
_, err = ContextFromString("01234_67890123456789012345678901:1:1:1")
assert.Error(t, err)
_, err = ContextFromString("0123456789012345678901_345678901:1:1:1")
assert.Error(t, err)
_, err = ContextFromString("1:0123456789012345:1:1")
assert.NoError(t, err)
_, err = ContextFromString("1:01234567890123456:1:1")
assert.Error(t, err)
ctx, err := ContextFromString("10000000000000001:1:1:1")
assert.NoError(t, err)
assert.EqualValues(t, TraceID{High: 1, Low: 1}, ctx.traceID)
ctx, err = ContextFromString("1:1:1:1")
assert.NoError(t, err)
assert.EqualValues(t, TraceID{Low: 1}, ctx.traceID)
assert.EqualValues(t, 1, ctx.spanID)
assert.EqualValues(t, 1, ctx.parentID)
assert.EqualValues(t, 1, ctx.flags)
ctx = NewSpanContext(TraceID{Low: 1}, 1, 1, true, nil)
assert.EqualValues(t, TraceID{Low: 1}, ctx.traceID)
assert.EqualValues(t, 1, ctx.spanID)
assert.EqualValues(t, 1, ctx.parentID)
assert.EqualValues(t, 1, ctx.flags)
assert.Equal(t, "ff", SpanID(255).String())
assert.Equal(t, "ff", TraceID{Low: 255}.String())
assert.Equal(t, "ff00000000000000ff", TraceID{High: 255, Low: 255}.String())
ctx = NewSpanContext(TraceID{High: 255, Low: 255}, SpanID(1), SpanID(1), false, nil)
assert.Equal(t, "ff00000000000000ff:1:1:0", ctx.String())
}
func TestSpanContext_WithBaggageItem(t *testing.T) {
var ctx SpanContext
ctx = ctx.WithBaggageItem("some-KEY", "Some-Value")
assert.Equal(t, map[string]string{"some-KEY": "Some-Value"}, ctx.baggage)
ctx = ctx.WithBaggageItem("some-KEY", "Some-Other-Value")
assert.Equal(t, map[string]string{"some-KEY": "Some-Other-Value"}, ctx.baggage)
}
func TestSpanContext_SampledDebug(t *testing.T) {
ctx, err := ContextFromString("1:1:1:1")
require.NoError(t, err)
assert.True(t, ctx.IsSampled())
assert.False(t, ctx.IsDebug())
ctx, err = ContextFromString("1:1:1:3")
require.NoError(t, err)
assert.True(t, ctx.IsSampled())
assert.True(t, ctx.IsDebug())
ctx, err = ContextFromString("1:1:1:0")
require.NoError(t, err)
assert.False(t, ctx.IsSampled())
assert.False(t, ctx.IsDebug())
}
func TestSpanContext_CopyFrom(t *testing.T) {
ctx, err := ContextFromString("1:1:1:1")
require.NoError(t, err)
ctx2 := SpanContext{}
ctx2.CopyFrom(&ctx)
assert.Equal(t, ctx, ctx2)
// with baggage
ctx = ctx.WithBaggageItem("x", "y")
ctx2 = SpanContext{}
ctx2.CopyFrom(&ctx)
assert.Equal(t, ctx, ctx2)
assert.Equal(t, "y", ctx2.baggage["x"])
}