1// Copyright (c) 2016 Uber Technologies, Inc.
2//
3// Permission is hereby granted, free of charge, to any person obtaining a copy
4// of this software and associated documentation files (the "Software"), to deal
5// in the Software without restriction, including without limitation the rights
6// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
7// copies of the Software, and to permit persons to whom the Software is
8// furnished to do so, subject to the following conditions:
9//
10// The above copyright notice and this permission notice shall be included in
11// all copies or substantial portions of the Software.
12//
13// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
14// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
15// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
16// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
17// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
18// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
19// THE SOFTWARE.
20
21package zap
22
23import (
24	"strings"
25	"testing"
26
27	"github.com/stretchr/testify/assert"
28	"github.com/stretchr/testify/require"
29)
30
31func TestTakeStacktrace(t *testing.T) {
32	trace := takeStacktrace(0)
33	lines := strings.Split(trace, "\n")
34	require.NotEmpty(t, lines, "Expected stacktrace to have at least one frame.")
35	assert.Contains(
36		t,
37		lines[0],
38		"go.uber.org/zap.TestTakeStacktrace",
39		"Expected stacktrace to start with the test.",
40	)
41}
42
43func TestTakeStacktraceWithSkip(t *testing.T) {
44	trace := takeStacktrace(1)
45	lines := strings.Split(trace, "\n")
46	require.NotEmpty(t, lines, "Expected stacktrace to have at least one frame.")
47	assert.Contains(
48		t,
49		lines[0],
50		"testing.",
51		"Expected stacktrace to start with the test runner (skipping our own frame).",
52	)
53}
54
55func TestTakeStacktraceWithSkipInnerFunc(t *testing.T) {
56	var trace string
57	func() {
58		trace = takeStacktrace(2)
59	}()
60	lines := strings.Split(trace, "\n")
61	require.NotEmpty(t, lines, "Expected stacktrace to have at least one frame.")
62	assert.Contains(
63		t,
64		lines[0],
65		"testing.",
66		"Expected stacktrace to start with the test function (skipping the test function).",
67	)
68}
69
70func BenchmarkTakeStacktrace(b *testing.B) {
71	for i := 0; i < b.N; i++ {
72		takeStacktrace(0)
73	}
74}
75