diff options
Diffstat (limited to 'src/runtime/debug/stack_test.go')
| -rw-r--r-- | src/runtime/debug/stack_test.go | 112 |
1 files changed, 84 insertions, 28 deletions
diff --git a/src/runtime/debug/stack_test.go b/src/runtime/debug/stack_test.go index 9376e82b84..671057c3a0 100644 --- a/src/runtime/debug/stack_test.go +++ b/src/runtime/debug/stack_test.go @@ -5,11 +5,26 @@ package debug_test import ( + "bytes" + "fmt" + "internal/testenv" + "os" + "os/exec" + "path/filepath" + "runtime" . "runtime/debug" "strings" "testing" ) +func TestMain(m *testing.M) { + if os.Getenv("GO_RUNTIME_DEBUG_TEST_DUMP_GOROOT") != "" { + fmt.Println(runtime.GOROOT()) + os.Exit(0) + } + os.Exit(m.Run()) +} + type T int func (t *T) ptrmethod() []byte { @@ -20,22 +35,22 @@ func (t T) method() []byte { } /* - 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. +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. - goroutine 10 [running]: - runtime/debug.Stack(0x0, 0x0, 0x0) - /Users/r/go/src/runtime/debug/stack.go:28 +0x80 - runtime/debug.(*T).ptrmethod(0xc82005ee70, 0x0, 0x0, 0x0) - /Users/r/go/src/runtime/debug/stack_test.go:15 +0x29 - runtime/debug.T.method(0x0, 0x0, 0x0, 0x0) - /Users/r/go/src/runtime/debug/stack_test.go:18 +0x32 - runtime/debug.TestStack(0xc8201ce000) - /Users/r/go/src/runtime/debug/stack_test.go:37 +0x38 - testing.tRunner(0xc8201ce000, 0x664b58) - /Users/r/go/src/testing/testing.go:456 +0x98 - created by testing.RunTests - /Users/r/go/src/testing/testing.go:561 +0x86d + goroutine 10 [running]: + runtime/debug.Stack(0x0, 0x0, 0x0) + /Users/r/go/src/runtime/debug/stack.go:28 +0x80 + runtime/debug.(*T).ptrmethod(0xc82005ee70, 0x0, 0x0, 0x0) + /Users/r/go/src/runtime/debug/stack_test.go:15 +0x29 + runtime/debug.T.method(0x0, 0x0, 0x0, 0x0) + /Users/r/go/src/runtime/debug/stack_test.go:18 +0x32 + runtime/debug.TestStack(0xc8201ce000) + /Users/r/go/src/runtime/debug/stack_test.go:37 +0x38 + testing.tRunner(0xc8201ce000, 0x664b58) + /Users/r/go/src/testing/testing.go:456 +0x98 + created by testing.RunTests + /Users/r/go/src/testing/testing.go:561 +0x86d */ func TestStack(t *testing.T) { b := T(0).method() @@ -43,23 +58,64 @@ func TestStack(t *testing.T) { if len(lines) < 6 { t.Fatal("too few lines") } + + // If built with -trimpath, file locations should start with package paths. + // Otherwise, file locations should start with a GOROOT/src prefix + // (for whatever value of GOROOT is baked into the binary, not the one + // that may be set in the environment). + fileGoroot := "" + if envGoroot := os.Getenv("GOROOT"); envGoroot != "" { + // Since GOROOT is set explicitly in the environment, we can't be certain + // that it is the same GOROOT value baked into the binary, and we can't + // change the value in-process because runtime.GOROOT uses the value from + // initial (not current) environment. Spawn a subprocess to determine the + // real baked-in GOROOT. + t.Logf("found GOROOT %q from environment; checking embedded GOROOT value", envGoroot) + testenv.MustHaveExec(t) + exe, err := os.Executable() + if err != nil { + t.Fatal(err) + } + cmd := exec.Command(exe) + cmd.Env = append(os.Environ(), "GOROOT=", "GO_RUNTIME_DEBUG_TEST_DUMP_GOROOT=1") + out, err := cmd.Output() + if err != nil { + t.Fatal(err) + } + fileGoroot = string(bytes.TrimSpace(out)) + } else { + // Since GOROOT is not set in the environment, its value (if any) must come + // from the path embedded in the binary. + fileGoroot = runtime.GOROOT() + } + filePrefix := "" + if fileGoroot != "" { + filePrefix = filepath.ToSlash(fileGoroot) + "/src/" + } + n := 0 - frame := func(line, code string) { - check(t, lines[n], code) + frame := func(file, code string) { + t.Helper() + + line := lines[n] + if !strings.Contains(line, code) { + t.Errorf("expected %q in %q", code, line) + } n++ - check(t, lines[n], line) + + line = lines[n] + + wantPrefix := "\t" + filePrefix + file + if !strings.HasPrefix(line, wantPrefix) { + t.Errorf("in line %q, expected prefix %q", line, wantPrefix) + } n++ } n++ - frame("src/runtime/debug/stack.go", "runtime/debug.Stack") - frame("src/runtime/debug/stack_test.go", "runtime/debug_test.(*T).ptrmethod") - frame("src/runtime/debug/stack_test.go", "runtime/debug_test.T.method") - frame("src/runtime/debug/stack_test.go", "runtime/debug_test.TestStack") - frame("src/testing/testing.go", "") -} -func check(t *testing.T, line, has string) { - if !strings.Contains(line, has) { - t.Errorf("expected %q in %q", has, line) - } + frame("runtime/debug/stack.go", "runtime/debug.Stack") + frame("runtime/debug/stack_test.go", "runtime/debug_test.(*T).ptrmethod") + frame("runtime/debug/stack_test.go", "runtime/debug_test.T.method") + frame("runtime/debug/stack_test.go", "runtime/debug_test.TestStack") + frame("testing/testing.go", "") } |