30 lines
1.1 KiB
Go
30 lines
1.1 KiB
Go
// Copyright 2020 the Pinniped contributors. All Rights Reserved.
|
|
// SPDX-License-Identifier: Apache-2.0
|
|
|
|
package controller
|
|
|
|
import (
|
|
"testing"
|
|
|
|
"github.com/stretchr/testify/require"
|
|
"k8s.io/client-go/tools/cache"
|
|
)
|
|
|
|
func TestCacheMutationDetectorEnabled(t *testing.T) {
|
|
// this is a bit of simplistic test to check if we have a real cache mutation detector.
|
|
// if we actually start mutating an informer cache in this test, the test will almost
|
|
// always fail because the go race detector will see the mutation.
|
|
// the cache mutation detector will certainly make certain races more common and thus
|
|
// easily detected by the race detector, but its real use is against a compiled binary
|
|
// such as pinniped-server running in a pod - that binary has no race detector at runtime.
|
|
|
|
c := cache.NewCacheMutationDetector("test pinniped")
|
|
|
|
type isRealCacheMutationDetector interface {
|
|
CompareObjects() // this is brittle, but this function name has never changed...
|
|
}
|
|
|
|
_, ok := c.(isRealCacheMutationDetector)
|
|
require.Truef(t, ok, "%T is not a real cache mutation detector", c)
|
|
}
|