/usr/share/gocode/src/github.com/docker/go-events/common_test.go is in golang-github-docker-go-events-dev 0.0~git20160331.0.882f161-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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 | package events
import (
"fmt"
"math/rand"
"sync"
"testing"
"time"
)
type tOrB interface {
Fatalf(format string, args ...interface{})
Logf(format string, args ...interface{})
}
type testSink struct {
t tOrB
events []Event
expected int
mu sync.Mutex
closed bool
}
func newTestSink(t tOrB, expected int) *testSink {
return &testSink{
t: t,
events: make([]Event, 0, expected), // pre-allocate so we aren't benching alloc
expected: expected,
}
}
func (ts *testSink) Write(event Event) error {
ts.mu.Lock()
defer ts.mu.Unlock()
if ts.closed {
return ErrSinkClosed
}
ts.events = append(ts.events, event)
if len(ts.events) > ts.expected {
ts.t.Fatalf("len(ts.events) == %v, expected %v", len(ts.events), ts.expected)
}
return nil
}
func (ts *testSink) Close() error {
ts.mu.Lock()
defer ts.mu.Unlock()
if ts.closed {
return ErrSinkClosed
}
ts.closed = true
if len(ts.events) != ts.expected {
ts.t.Fatalf("len(ts.events) == %v, expected %v", len(ts.events), ts.expected)
}
return nil
}
type delayedSink struct {
Sink
delay time.Duration
}
func (ds *delayedSink) Write(event Event) error {
time.Sleep(ds.delay)
return ds.Sink.Write(event)
}
type flakySink struct {
Sink
rate float64
mu sync.Mutex
}
func (fs *flakySink) Write(event Event) error {
fs.mu.Lock()
defer fs.mu.Unlock()
if rand.Float64() < fs.rate {
return fmt.Errorf("error writing event: %v", event)
}
return fs.Sink.Write(event)
}
func checkClose(t *testing.T, sink Sink) {
if err := sink.Close(); err != nil {
t.Fatalf("unexpected error closing: %v", err)
}
// second close should not crash but should return an error.
if err := sink.Close(); err == nil {
t.Fatalf("no error on double close")
}
// Write after closed should be an error
if err := sink.Write("fail"); err == nil {
t.Fatalf("write after closed did not have an error")
} else if err != ErrSinkClosed {
t.Fatalf("error should be ErrSinkClosed")
}
}
func benchmarkSink(b *testing.B, sink Sink) {
defer sink.Close()
var event = "myevent"
for i := 0; i < b.N; i++ {
sink.Write(event)
}
}
|