Retro68/gcc/libgo/go/internal/pprof/profile/profile_test.go
2017-10-07 02:16:47 +02:00

80 lines
1.9 KiB
Go

// Copyright 2015 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 profile
import (
"bytes"
"testing"
)
func TestEmptyProfile(t *testing.T) {
var buf bytes.Buffer
p, err := Parse(&buf)
if err != nil {
t.Error("Want no error, got", err)
}
if p == nil {
t.Fatal("Want a valid profile, got <nil>")
}
if !p.Empty() {
t.Errorf("Profile should be empty, got %#v", p)
}
}
func TestParseContention(t *testing.T) {
tests := []struct {
name string
in string
wantErr bool
}{
{
name: "valid",
in: `--- mutex:
cycles/second=3491920901
sampling period=1
43227965305 1659640 @ 0x45e851 0x45f764 0x4a2be1 0x44ea31
34035731690 15760 @ 0x45e851 0x45f764 0x4a2b17 0x44ea31
`,
},
{
name: "valid with comment",
in: `--- mutex:
cycles/second=3491920901
sampling period=1
43227965305 1659640 @ 0x45e851 0x45f764 0x4a2be1 0x44ea31
# 0x45e850 sync.(*Mutex).Unlock+0x80 /go/src/sync/mutex.go:126
# 0x45f763 sync.(*RWMutex).Unlock+0x83 /go/src/sync/rwmutex.go:125
# 0x4a2be0 main.main.func3+0x70 /go/src/internal/pprof/profile/a_binary.go:58
34035731690 15760 @ 0x45e851 0x45f764 0x4a2b17 0x44ea31
# 0x45e850 sync.(*Mutex).Unlock+0x80 /go/src/sync/mutex.go:126
# 0x45f763 sync.(*RWMutex).Unlock+0x83 /go/src/sync/rwmutex.go:125
# 0x4a2b16 main.main.func2+0xd6 /go/src/internal/pprof/profile/a_binary.go:48
`,
},
{
name: "empty",
in: `--- mutex:`,
wantErr: true,
},
{
name: "invalid header",
in: `--- channel:
43227965305 1659640 @ 0x45e851 0x45f764 0x4a2be1 0x44ea31`,
wantErr: true,
},
}
for _, tc := range tests {
_, err := parseContention([]byte(tc.in))
if tc.wantErr && err == nil {
t.Errorf("parseContention(%q) succeeded unexpectedly", tc.name)
}
if !tc.wantErr && err != nil {
t.Errorf("parseContention(%q) failed unexpectedly: %v", tc.name, err)
}
}
}