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b386bce1f1
The graphtest package is only imported in the test files of other packages therefore we do not leak testing flags. Signed-off-by: Michael Crosby <michael@docker.com>
37 lines
774 B
Go
37 lines
774 B
Go
package testutils
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import (
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"math/rand"
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"testing"
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"time"
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)
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const chars = "abcdefghijklmnopqrstuvwxyz" +
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"ABCDEFGHIJKLMNOPQRSTUVWXYZ" +
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"~!@#$%^&*()-_+={}[]\\|<,>.?/\"';:` "
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// Timeout calls f and waits for 100ms for it to complete.
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// If it doesn't, it causes the tests to fail.
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// t must be a valid testing context.
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func Timeout(t *testing.T, f func()) {
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onTimeout := time.After(100 * time.Millisecond)
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onDone := make(chan bool)
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go func() {
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f()
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close(onDone)
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}()
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select {
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case <-onTimeout:
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t.Fatalf("timeout")
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case <-onDone:
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}
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}
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// RandomString returns random string of specified length
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func RandomString(length int) string {
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res := make([]byte, length)
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for i := 0; i < length; i++ {
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res[i] = chars[rand.Intn(len(chars))]
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}
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return string(res)
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}
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