| // Copyright 2011 The Go Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style |
| // license that can be found in the LICENSE file. |
| |
| package debug |
| |
| import ( |
| "strings" |
| "testing" |
| ) |
| |
| type T int |
| |
| func (t *T) ptrmethod() []byte { |
| return Stack() |
| } |
| func (t T) method() []byte { |
| return t.ptrmethod() |
| } |
| |
| /* |
| The traceback should look something like this, modulo line numbers and hex constants. |
| Don't worry much about the base levels, but check the ones in our own package. |
| |
| /Users/r/go/src/pkg/runtime/debug/stack_test.go:15 (0x13878) |
| (*T).ptrmethod: return Stack() |
| /Users/r/go/src/pkg/runtime/debug/stack_test.go:18 (0x138dd) |
| T.method: return t.ptrmethod() |
| /Users/r/go/src/pkg/runtime/debug/stack_test.go:23 (0x13920) |
| TestStack: b := T(0).method() |
| /Users/r/go/src/pkg/testing/testing.go:132 (0x14a7a) |
| tRunner: test.F(t) |
| /Users/r/go/src/pkg/runtime/proc.c:145 (0xc970) |
| ???: runtimeĀ·unlock(&runtimeĀ·sched); |
| */ |
| func TestStack(t *testing.T) { |
| b := T(0).method() |
| lines := strings.Split(string(b), "\n") |
| if len(lines) <= 6 { |
| t.Fatal("too few lines") |
| } |
| check(t, lines[0], "src/pkg/runtime/debug/stack_test.go") |
| check(t, lines[1], "\t(*T).ptrmethod: return Stack()") |
| check(t, lines[2], "src/pkg/runtime/debug/stack_test.go") |
| check(t, lines[3], "\tT.method: return t.ptrmethod()") |
| check(t, lines[4], "src/pkg/runtime/debug/stack_test.go") |
| check(t, lines[5], "\tTestStack: b := T(0).method()") |
| check(t, lines[6], "src/pkg/testing/testing.go") |
| } |
| |
| func check(t *testing.T, line, has string) { |
| if strings.Index(line, has) < 0 { |
| t.Errorf("expected %q in %q", has, line) |
| } |
| } |