// Copyright The 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 internal

import (
	"testing"

	"github.com/stretchr/testify/assert"
)

func TestTraceID(t *testing.T) {
	tid := InvalidTraceID()
	assert.Equal(t, [16]byte{}, tid.Bytes())
	assert.True(t, tid.IsEmpty())
	assert.Equal(t, "", tid.HexString())

	tid = NewTraceID([16]byte{1, 2, 3, 4, 5, 6, 7, 8, 8, 7, 6, 5, 4, 3, 2, 1})
	assert.Equal(t, [16]byte{1, 2, 3, 4, 5, 6, 7, 8, 8, 7, 6, 5, 4, 3, 2, 1}, tid.Bytes())
	assert.False(t, tid.IsEmpty())
	assert.Equal(t, "01020304050607080807060504030201", tid.HexString())
}
