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moby--moby/pkg/testutils/testutils.go
LK4D4 01b424028e Benchmarks for engine/env
Docker-DCO-1.1-Signed-off-by: Alexandr Morozov <lk4d4math@gmail.com> (github: LK4D4)
2014-06-24 21:48:16 +04:00

37 lines
774 B
Go

package testutils
import (
"math/rand"
"testing"
"time"
)
const chars = "abcdefghijklmnopqrstuvwxyz" +
"ABCDEFGHIJKLMNOPQRSTUVWXYZ" +
"~!@#$%^&*()-_+={}[]\\|<,>.?/\"';:` "
// Timeout calls f and waits for 100ms for it to complete.
// If it doesn't, it causes the tests to fail.
// t must be a valid testing context.
func Timeout(t *testing.T, f func()) {
onTimeout := time.After(100 * time.Millisecond)
onDone := make(chan bool)
go func() {
f()
close(onDone)
}()
select {
case <-onTimeout:
t.Fatalf("timeout")
case <-onDone:
}
}
// RandomString returns random string of specified length
func RandomString(length int) string {
res := make([]byte, length)
for i := 0; i < length; i++ {
res[i] = chars[rand.Intn(len(chars))]
}
return string(res)
}