55 lines
1.8 KiB
Go
55 lines
1.8 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 pcommon
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import (
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"testing"
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"github.com/stretchr/testify/assert"
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)
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func TestTraceID(t *testing.T) {
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tid := TraceID([16]byte{1, 2, 3, 4, 5, 6, 7, 8, 8, 7, 6, 5, 4, 3, 2, 1})
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assert.Equal(t, [16]byte{1, 2, 3, 4, 5, 6, 7, 8, 8, 7, 6, 5, 4, 3, 2, 1}, [16]byte(tid))
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assert.False(t, tid.IsEmpty())
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assert.Equal(t, "01020304050607080807060504030201", tid.HexString())
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}
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func TestNewTraceIDEmpty(t *testing.T) {
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tid := NewTraceIDEmpty()
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assert.Equal(t, [16]byte{}, [16]byte(tid))
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assert.True(t, tid.IsEmpty())
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}
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func TestTraceIDHexString(t *testing.T) {
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tid := TraceID([16]byte{})
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assert.Equal(t, "", tid.HexString())
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tid = [16]byte{0x12, 0x34, 0x56, 0x78, 0x12, 0x34, 0x56, 0x78, 0x12, 0x34, 0x56, 0x78, 0x12, 0x34, 0x56, 0x78}
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assert.Equal(t, "12345678123456781234567812345678", tid.HexString())
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}
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func TestTraceIDImmutable(t *testing.T) {
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initialBytes := [16]byte{0x12, 0x34, 0x56, 0x78, 0x12, 0x34, 0x56, 0x78, 0x12, 0x34, 0x56, 0x78, 0x12, 0x34, 0x56, 0x78}
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tid := TraceID(initialBytes)
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assert.Equal(t, TraceID(initialBytes), tid)
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// Get the bytes and try to mutate.
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tid[4] = 0x23
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// Does not change the already created TraceID.
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assert.NotEqual(t, TraceID(initialBytes), tid)
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}
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