1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
|
package streamrow
import (
"sync"
"testing"
"ior/internal/event"
"ior/internal/file"
"ior/internal/types"
)
func TestSequencerStartsAfterSeed(t *testing.T) {
seq := NewSequencer(41)
if got, want := seq.Next(), uint64(42); got != want {
t.Fatalf("first Next() = %d, want %d", got, want)
}
if got, want := seq.Next(), uint64(43); got != want {
t.Fatalf("second Next() = %d, want %d", got, want)
}
}
func TestSequencerIsMonotonicUnderConcurrency(t *testing.T) {
seq := NewSequencer(0)
const workers = 8
const perWorker = 64
got := make(chan uint64, workers*perWorker)
var wg sync.WaitGroup
for i := 0; i < workers; i++ {
wg.Add(1)
go func() {
defer wg.Done()
for j := 0; j < perWorker; j++ {
got <- seq.Next()
}
}()
}
wg.Wait()
close(got)
seen := make(map[uint64]struct{}, workers*perWorker)
for n := range got {
if _, ok := seen[n]; ok {
t.Fatalf("duplicate sequence number %d", n)
}
seen[n] = struct{}{}
}
if got, want := len(seen), workers*perWorker; got != want {
t.Fatalf("unique sequence count = %d, want %d", got, want)
}
}
func TestNewPopulatesFieldsFromPair(t *testing.T) {
enter := &types.OpenEvent{TraceId: types.SYS_ENTER_OPENAT, Time: 1234, Pid: 42, Tid: 84}
exit := &types.RetEvent{TraceId: types.SYS_EXIT_OPENAT, Time: 1300, Ret: -2, Pid: 42, Tid: 84}
pair := event.NewPair(enter)
pair.ExitEv = exit
pair.File = file.NewFd(7, "/tmp/test.txt", 0)
pair.Comm = "cat"
pair.Duration = 66
pair.DurationToPrev = 19
pair.Bytes = 512
got := New(9, pair)
if got.Seq != 9 || got.TimeNs != 1234 {
t.Fatalf("Seq/TimeNs = %d/%d, want 9/1234", got.Seq, got.TimeNs)
}
if got.Syscall != "openat" || got.Comm != "cat" {
t.Fatalf("Syscall/Comm = %q/%q, want openat/cat", got.Syscall, got.Comm)
}
if got.PID != 42 || got.TID != 84 {
t.Fatalf("PID/TID = %d/%d, want 42/84", got.PID, got.TID)
}
if got.FileName != "/tmp/test.txt" || got.FD != 7 {
t.Fatalf("FileName/FD = %q/%d, want /tmp/test.txt/7", got.FileName, got.FD)
}
if got.DurationNs != 66 || got.GapNs != 19 || got.Bytes != 512 {
t.Fatalf("DurationNs/GapNs/Bytes = %d/%d/%d, want 66/19/512", got.DurationNs, got.GapNs, got.Bytes)
}
if got.RetVal != -2 || !got.IsError {
t.Fatalf("RetVal/IsError = %d/%v, want -2/true", got.RetVal, got.IsError)
}
}
func TestNewWarningPopulatesSyntheticWarningFields(t *testing.T) {
got := NewWarning(7, "Dropped malformed event")
if got.Seq != 7 || got.TimeNs == 0 {
t.Fatalf("Seq/TimeNs = %d/%d, want 7/non-zero", got.Seq, got.TimeNs)
}
if got.Syscall != "warning" || got.Comm != "ior" {
t.Fatalf("Syscall/Comm = %q/%q, want warning/ior", got.Syscall, got.Comm)
}
if got.FileName != "Dropped malformed event" || got.FD != UnknownFD {
t.Fatalf("FileName/FD = %q/%d, want warning text/%d", got.FileName, got.FD, UnknownFD)
}
if got.RetVal != -1 || !got.IsError {
t.Fatalf("RetVal/IsError = %d/%v, want -1/true", got.RetVal, got.IsError)
}
}
// TestRowValueAccessors verifies that all typed accessor methods return the
// underlying field values set on a Row.
func TestRowValueAccessors(t *testing.T) {
r := Row{
Syscall: "read",
Comm: "cat",
FileName: "/etc/hosts",
PID: 10,
TID: 11,
FD: 3,
DurationNs: 500,
GapNs: 200,
Bytes: 1024,
RetVal: -1,
IsError: true,
}
if r.SyscallValue() != "read" {
t.Fatalf("SyscallValue = %q, want read", r.SyscallValue())
}
if r.CommValue() != "cat" {
t.Fatalf("CommValue = %q, want cat", r.CommValue())
}
if r.FileValue() != "/etc/hosts" {
t.Fatalf("FileValue = %q, want /etc/hosts", r.FileValue())
}
if r.PIDValue() != 10 {
t.Fatalf("PIDValue = %d, want 10", r.PIDValue())
}
if r.TIDValue() != 11 {
t.Fatalf("TIDValue = %d, want 11", r.TIDValue())
}
if r.FDValue() != 3 {
t.Fatalf("FDValue = %d, want 3", r.FDValue())
}
if r.LatencyValue() != 500 {
t.Fatalf("LatencyValue = %d, want 500", r.LatencyValue())
}
if r.GapValue() != 200 {
t.Fatalf("GapValue = %d, want 200", r.GapValue())
}
if r.BytesValue() != 1024 {
t.Fatalf("BytesValue = %d, want 1024", r.BytesValue())
}
if r.ReturnValue() != -1 {
t.Fatalf("ReturnValue = %d, want -1", r.ReturnValue())
}
if !r.ErrorValue() {
t.Fatal("ErrorValue = false, want true")
}
}
// TestSequencerNilSafeNext verifies that calling Next on a nil Sequencer returns
// 0 without panicking.
func TestSequencerNilSafeNext(t *testing.T) {
var s *Sequencer
if got := s.Next(); got != 0 {
t.Fatalf("nil Sequencer.Next() = %d, want 0", got)
}
}
|
