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https://github.com/k3s-io/kubernetes.git
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56 lines
1.7 KiB
Go
56 lines
1.7 KiB
Go
/*
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Copyright 2018 The Kubernetes Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package util
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import (
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"crypto/sha1"
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"encoding/hex"
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"testing"
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"k8s.io/api/core/v1"
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v1helper "k8s.io/kubernetes/pkg/apis/core/v1/helper"
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)
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func TestGetCSIAttachLimitKey(t *testing.T) {
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// When driverName is less than 39 characters
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csiLimitKey := GetCSIAttachLimitKey("com.amazon.ebs")
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if csiLimitKey != "attachable-volumes-csi-com.amazon.ebs" {
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t.Errorf("Expected com.amazon.ebs got %s", csiLimitKey)
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}
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// When driver is longer than 39 chars
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longDriverName := "com.amazon.kubernetes.eks.ec2.ebs/csi-driver"
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csiLimitKeyLonger := GetCSIAttachLimitKey(longDriverName)
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if !v1helper.IsAttachableVolumeResourceName(v1.ResourceName(csiLimitKeyLonger)) {
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t.Errorf("Expected %s to have attachable prefix", csiLimitKeyLonger)
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}
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expectedCSIKey := getDriverHash(longDriverName)
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if csiLimitKeyLonger != expectedCSIKey {
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t.Errorf("Expected limit to be %s got %s", expectedCSIKey, csiLimitKeyLonger)
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}
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}
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func getDriverHash(driverName string) string {
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charsFromDriverName := driverName[:23]
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hash := sha1.New()
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hash.Write([]byte(driverName))
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hashed := hex.EncodeToString(hash.Sum(nil))
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hashed = hashed[:16]
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return CSIAttachLimitPrefix + charsFromDriverName + hashed
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}
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