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/* | ||
Copyright 2018 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. | ||
*/ | ||
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package controller | ||
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import ( | ||
crdv1 "github.com/kubernetes-csi/external-snapshotter/pkg/apis/volumesnapshot/v1alpha1" | ||
"k8s.io/client-go/tools/cache" | ||
"testing" | ||
) | ||
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func storeVersion(t *testing.T, prefix string, c cache.Store, version string, expectedReturn bool) { | ||
content := newContent("contentName", classEmpty, "sid1-1", "vuid1-1", "volume1-1", "snapuid1-1", "snap1-1", nil, nil) | ||
content.ResourceVersion = version | ||
ret, err := storeObjectUpdate(c, content, "content") | ||
if err != nil { | ||
t.Errorf("%s: expected storeObjectUpdate to succeed, got: %v", prefix, err) | ||
} | ||
if expectedReturn != ret { | ||
t.Errorf("%s: expected storeObjectUpdate to return %v, got: %v", prefix, expectedReturn, ret) | ||
} | ||
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// find the stored version | ||
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contentObj, found, err := c.GetByKey("contentName") | ||
if err != nil { | ||
t.Errorf("expected content 'contentName' in the cache, got error instead: %v", err) | ||
} | ||
if !found { | ||
t.Errorf("expected content 'contentName' in the cache but it was not found") | ||
} | ||
content, ok := contentObj.(*crdv1.VolumeSnapshotContent) | ||
if !ok { | ||
t.Errorf("expected content in the cache, got different object instead: %#v", contentObj) | ||
} | ||
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if ret { | ||
if content.ResourceVersion != version { | ||
t.Errorf("expected content with version %s in the cache, got %s instead", version, content.ResourceVersion) | ||
} | ||
} else { | ||
if content.ResourceVersion == version { | ||
t.Errorf("expected content with version other than %s in the cache, got %s instead", version, content.ResourceVersion) | ||
} | ||
} | ||
} | ||
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// TestControllerCache tests func storeObjectUpdate() | ||
func TestControllerCache(t *testing.T) { | ||
// Cache under test | ||
c := cache.NewStore(cache.DeletionHandlingMetaNamespaceKeyFunc) | ||
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// Store new PV | ||
storeVersion(t, "Step1", c, "1", true) | ||
// Store the same PV | ||
storeVersion(t, "Step2", c, "1", true) | ||
// Store newer PV | ||
storeVersion(t, "Step3", c, "2", true) | ||
// Store older PV - simulating old "PV updated" event or periodic sync with | ||
// old data | ||
storeVersion(t, "Step4", c, "1", false) | ||
// Store newer PV - test integer parsing ("2" > "10" as string, | ||
// while 2 < 10 as integers) | ||
storeVersion(t, "Step5", c, "10", true) | ||
} | ||
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func TestControllerCacheParsingError(t *testing.T) { | ||
c := cache.NewStore(cache.DeletionHandlingMetaNamespaceKeyFunc) | ||
// There must be something in the cache to compare with | ||
storeVersion(t, "Step1", c, "1", true) | ||
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content := newContent("contentName", classEmpty, "sid1-1", "vuid1-1", "volume1-1", "snapuid1-1", "snap1-1", nil, nil) | ||
content.ResourceVersion = "xxx" | ||
_, err := storeObjectUpdate(c, content, "content") | ||
if err == nil { | ||
t.Errorf("Expected parsing error, got nil instead") | ||
} | ||
} |
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