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// Copyright 2020 The Kubernetes Authors.
// SPDX-License-Identifier: Apache-2.0
package utils_test
import (
"fmt"
"testing"
"time"
"github.com/stretchr/testify/assert"
"go.uber.org/goleak"
. "sigs.k8s.io/kustomize/api/internal/utils"
)
const (
timeToWait = 10 * time.Millisecond
tooSlow = 2 * timeToWait
)
func errMsg(msg string) string {
return fmt.Sprintf("hit %s timeout running '%s'", timeToWait, msg)
}
func TestTimedCallFastNoError(t *testing.T) {
err := TimedCall(
"fast no error", timeToWait,
func() error { return nil })
if !assert.NoError(t, err) {
t.Fatal(err)
}
}
func TestTimedCallFastWithError(t *testing.T) {
err := TimedCall(
"fast with error", timeToWait,
func() error { return assert.AnError })
if assert.Error(t, err) {
assert.EqualError(t, err, assert.AnError.Error())
} else {
t.Fail()
}
}
func TestTimedCallSlowNoError(t *testing.T) {
err := TimedCall(
"slow no error", timeToWait,
func() error { time.Sleep(tooSlow); return nil })
if assert.Error(t, err) {
assert.EqualError(t, err, errMsg("slow no error"))
} else {
t.Fail()
}
}
func TestTimedCallSlowWithError(t *testing.T) {
err := TimedCall(
"slow with error", timeToWait,
func() error { time.Sleep(tooSlow); return assert.AnError })
if assert.Error(t, err) {
assert.EqualError(t, err, errMsg("slow with error"))
} else {
t.Fail()
}
}
func TestTimedCallGoroutineLeak(t *testing.T) {
defer goleak.VerifyNone(t)
err := TimedCall("function done, no goroutine leaks", timeToWait, func() error {
time.Sleep(tooSlow)
return fmt.Errorf("function done")
})
if assert.Error(t, err) {
assert.EqualError(t, err, errMsg("function done, no goroutine leaks"))
} else {
t.Fail()
}
// The code introduces a 2-second sleep to allow the goroutine to complete its execution.
// Subsequently, it verifies if the goroutine created by the function exits as expected.
time.Sleep(tooSlow)
}
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