kubernetes/pkg/controller/deployment/util/pod_util_test.go
Michail Kargakis 4a2c5eae92
Implement hash collision avoidance mechanism
Signed-off-by: Michail Kargakis <mkargaki@redhat.com>
2017-05-25 11:17:45 +02:00

60 lines
1.5 KiB
Go

/*
Copyright 2017 The Kubernetes Authors.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package util
import (
"math"
"testing"
"k8s.io/kubernetes/pkg/api/v1"
)
func int64P(num int64) *int64 {
return &num
}
func TestGetPodTemplateSpecHash(t *testing.T) {
tests := []struct {
name string
template *v1.PodTemplateSpec
collisionCount *int64
otherCollisionCount *int64
}{
{
name: "simple",
template: &v1.PodTemplateSpec{},
collisionCount: int64P(1),
otherCollisionCount: int64P(2),
},
{
name: "using math.MaxInt64",
template: &v1.PodTemplateSpec{},
collisionCount: nil,
otherCollisionCount: int64P(int64(math.MaxInt64)),
},
}
for _, test := range tests {
hash := GetPodTemplateSpecHash(test.template, test.collisionCount)
otherHash := GetPodTemplateSpecHash(test.template, test.otherCollisionCount)
if hash == otherHash {
t.Errorf("expected different hashes but got the same: %d", hash)
}
}
}