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
|
package metrics
import (
"bytes"
"os"
"strings"
"sync"
"syscall"
"testing"
"time"
)
func TestInmemSignal(t *testing.T) {
buf := newBuffer()
inm := NewInmemSink(10*time.Millisecond, 50*time.Millisecond)
sig := NewInmemSignal(inm, syscall.SIGUSR1, buf)
defer sig.Stop()
inm.SetGauge([]string{"foo"}, 42)
inm.EmitKey([]string{"bar"}, 42)
inm.IncrCounter([]string{"baz"}, 42)
inm.AddSample([]string{"wow"}, 42)
inm.SetGaugeWithLabels([]string{"asdf"}, 42, []Label{{"a", "b"}})
inm.IncrCounterWithLabels([]string{"qwer"}, 42, []Label{{"a", "b"}})
inm.AddSampleWithLabels([]string{"zxcv"}, 42, []Label{{"a", "b"}})
// Wait for period to end
time.Sleep(15 * time.Millisecond)
// Send signal!
syscall.Kill(os.Getpid(), syscall.SIGUSR1)
// Wait for flush
time.Sleep(10 * time.Millisecond)
// Check the output
out := buf.String()
if !strings.Contains(out, "[G] 'foo': 42") {
t.Fatalf("bad: %v", out)
}
if !strings.Contains(out, "[P] 'bar': 42") {
t.Fatalf("bad: %v", out)
}
if !strings.Contains(out, "[C] 'baz': Count: 1 Sum: 42") {
t.Fatalf("bad: %v", out)
}
if !strings.Contains(out, "[S] 'wow': Count: 1 Sum: 42") {
t.Fatalf("bad: %v", out)
}
if !strings.Contains(out, "[G] 'asdf.b': 42") {
t.Fatalf("bad: %v", out)
}
if !strings.Contains(out, "[C] 'qwer.b': Count: 1 Sum: 42") {
t.Fatalf("bad: %v", out)
}
if !strings.Contains(out, "[S] 'zxcv.b': Count: 1 Sum: 42") {
t.Fatalf("bad: %v", out)
}
}
func newBuffer() *syncBuffer {
return &syncBuffer{buf: bytes.NewBuffer(nil)}
}
type syncBuffer struct {
buf *bytes.Buffer
lock sync.Mutex
}
func (s *syncBuffer) Write(p []byte) (int, error) {
s.lock.Lock()
defer s.lock.Unlock()
return s.buf.Write(p)
}
func (s *syncBuffer) String() string {
s.lock.Lock()
defer s.lock.Unlock()
return s.buf.String()
}
|
