1
2
3
4
5 package profile
6
7 import (
8 "bytes"
9 "testing"
10 )
11
12 func TestEmptyProfile(t *testing.T) {
13 var buf bytes.Buffer
14 p, err := Parse(&buf)
15 if err != nil {
16 t.Error("Want no error, got", err)
17 }
18 if p == nil {
19 t.Fatal("Want a valid profile, got <nil>")
20 }
21 if !p.Empty() {
22 t.Errorf("Profile should be empty, got %#v", p)
23 }
24 }
25
26 func TestParseContention(t *testing.T) {
27 tests := []struct {
28 name string
29 in string
30 wantErr bool
31 }{
32 {
33 name: "valid",
34 in: `--- mutex:
35 cycles/second=3491920901
36 sampling period=1
37 43227965305 1659640 @ 0x45e851 0x45f764 0x4a2be1 0x44ea31
38 34035731690 15760 @ 0x45e851 0x45f764 0x4a2b17 0x44ea31
39 `,
40 },
41 {
42 name: "valid with comment",
43 in: `--- mutex:
44 cycles/second=3491920901
45 sampling period=1
46 43227965305 1659640 @ 0x45e851 0x45f764 0x4a2be1 0x44ea31
47 # 0x45e850 sync.(*Mutex).Unlock+0x80 /go/src/sync/mutex.go:126
48 # 0x45f763 sync.(*RWMutex).Unlock+0x83 /go/src/sync/rwmutex.go:125
49 # 0x4a2be0 main.main.func3+0x70 /go/src/internal/pprof/profile/a_binary.go:58
50
51 34035731690 15760 @ 0x45e851 0x45f764 0x4a2b17 0x44ea31
52 # 0x45e850 sync.(*Mutex).Unlock+0x80 /go/src/sync/mutex.go:126
53 # 0x45f763 sync.(*RWMutex).Unlock+0x83 /go/src/sync/rwmutex.go:125
54 # 0x4a2b16 main.main.func2+0xd6 /go/src/internal/pprof/profile/a_binary.go:48
55 `,
56 },
57 {
58 name: "empty",
59 in: `--- mutex:`,
60 wantErr: true,
61 },
62 {
63 name: "invalid header",
64 in: `--- channel:
65 43227965305 1659640 @ 0x45e851 0x45f764 0x4a2be1 0x44ea31`,
66 wantErr: true,
67 },
68 }
69 for _, tc := range tests {
70 _, err := parseContention([]byte(tc.in))
71 if tc.wantErr && err == nil {
72 t.Errorf("parseContention(%q) succeeded unexpectedly", tc.name)
73 }
74 if !tc.wantErr && err != nil {
75 t.Errorf("parseContention(%q) failed unexpectedly: %v", tc.name, err)
76 }
77 }
78
79 }
80
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