pkg/testutils/testutils.go

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package testutils
import (
"testing"
"time"
)
// 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:
}
}