1 // Copyright 2015 The Go Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style 3 // license that can be found in the LICENSE file. 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
