delete: Implement Deleter
This commit is contained in:
Jan Safranek
169
pkg/controller/persistentvolume/persistentvolume_delete_test.go
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169
pkg/controller/persistentvolume/persistentvolume_delete_test.go
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/*
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Copyright 2016 The Kubernetes Authors All rights reserved.
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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 persistentvolume
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import (
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"errors"
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"testing"
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"k8s.io/kubernetes/pkg/api"
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)
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// Test single call to syncVolume, expecting recycling to happen.
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// 1. Fill in the controller with initial data
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// 2. Call the syncVolume *once*.
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// 3. Compare resulting volumes with expected volumes.
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func TestDeleteSync(t *testing.T) {
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tests := []controllerTest{
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{
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// delete volume bound by controller
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"8-1 - successful delete",
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newVolumeArray("volume8-1", "1Gi", "uid8-1", "claim8-1", api.VolumeBound, api.PersistentVolumeReclaimDelete, annBoundByController),
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novolumes,
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noclaims,
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noclaims,
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noevents,
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// Inject deleter into the controller and call syncVolume. The
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// deleter simulates one delete() call that succeeds.
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wrapTestWithControllerConfig(operationDelete, []error{nil}, testSyncVolume),
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},
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{
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// delete volume bound by user
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"8-2 - successful delete with prebound volume",
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newVolumeArray("volume8-2", "1Gi", "uid8-2", "claim8-2", api.VolumeBound, api.PersistentVolumeReclaimDelete),
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novolumes,
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noclaims,
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noclaims,
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noevents,
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// Inject deleter into the controller and call syncVolume. The
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// deleter simulates one delete() call that succeeds.
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wrapTestWithControllerConfig(operationDelete, []error{nil}, testSyncVolume),
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},
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{
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// delete failure - plugin not found
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"8-3 - plugin not found",
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newVolumeArray("volume8-3", "1Gi", "uid8-3", "claim8-3", api.VolumeBound, api.PersistentVolumeReclaimDelete),
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newVolumeArray("volume8-3", "1Gi", "uid8-3", "claim8-3", api.VolumeFailed, api.PersistentVolumeReclaimDelete),
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noclaims,
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noclaims,
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[]string{"Warning VolumeFailedDelete"}, testSyncVolume,
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},
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{
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// delete failure - newDeleter returns error
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"8-4 - newDeleter returns error",
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newVolumeArray("volume8-4", "1Gi", "uid8-4", "claim8-4", api.VolumeBound, api.PersistentVolumeReclaimDelete),
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newVolumeArray("volume8-4", "1Gi", "uid8-4", "claim8-4", api.VolumeFailed, api.PersistentVolumeReclaimDelete),
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noclaims,
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noclaims,
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[]string{"Warning VolumeFailedDelete"},
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wrapTestWithControllerConfig(operationDelete, []error{}, testSyncVolume),
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},
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{
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// delete failure - delete() returns error
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"8-5 - delete returns error",
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newVolumeArray("volume8-5", "1Gi", "uid8-5", "claim8-5", api.VolumeBound, api.PersistentVolumeReclaimDelete),
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newVolumeArray("volume8-5", "1Gi", "uid8-5", "claim8-5", api.VolumeFailed, api.PersistentVolumeReclaimDelete),
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noclaims,
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noclaims,
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[]string{"Warning VolumeFailedDelete"},
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wrapTestWithControllerConfig(operationDelete, []error{errors.New("Mock delete error")}, testSyncVolume),
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},
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{
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// delete success(?) - volume is deleted before doDelete() starts
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"8-6 - volume is deleted before deleting",
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newVolumeArray("volume8-6", "1Gi", "uid8-6", "claim8-6", api.VolumeBound, api.PersistentVolumeReclaimDelete),
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novolumes,
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noclaims,
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noclaims,
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noevents,
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wrapTestWithInjectedOperation(wrapTestWithControllerConfig(operationDelete, []error{}, testSyncVolume), func(ctrl *PersistentVolumeController, reactor *volumeReactor) {
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// Delete the volume before delete operation starts
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reactor.lock.Lock()
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delete(reactor.volumes, "volume8-6")
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reactor.lock.Unlock()
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}),
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},
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{
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// delete success(?) - volume is bound just at the time doDelete()
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// starts. This simulates "volume no longer needs recycling,
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// skipping".
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"8-7 - volume is bound before deleting",
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newVolumeArray("volume8-7", "1Gi", "uid8-7", "claim8-7", api.VolumeBound, api.PersistentVolumeReclaimDelete, annBoundByController),
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newVolumeArray("volume8-7", "1Gi", "uid8-7", "claim8-7", api.VolumeBound, api.PersistentVolumeReclaimDelete, annBoundByController),
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noclaims,
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newClaimArray("claim8-7", "uid8-7", "10Gi", "volume8-7", api.ClaimBound),
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noevents,
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wrapTestWithInjectedOperation(wrapTestWithControllerConfig(operationDelete, []error{}, testSyncVolume), func(ctrl *PersistentVolumeController, reactor *volumeReactor) {
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reactor.lock.Lock()
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defer reactor.lock.Unlock()
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// Bind the volume to ressurected claim (this should never
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// happen)
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claim := newClaim("claim8-7", "uid8-7", "10Gi", "volume8-7", api.ClaimBound)
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reactor.claims[claim.Name] = claim
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ctrl.claims.Add(claim)
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volume := reactor.volumes["volume8-7"]
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volume.Status.Phase = api.VolumeBound
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}),
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},
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{
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// delete success - volume bound by user is deleted, while a new
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// claim is created with another UID.
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"8-9 - prebound volume is deleted while the claim exists",
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newVolumeArray("volume8-9", "1Gi", "uid8-9", "claim8-9", api.VolumeBound, api.PersistentVolumeReclaimDelete),
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novolumes,
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newClaimArray("claim8-9", "uid8-9-x", "10Gi", "", api.ClaimPending),
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newClaimArray("claim8-9", "uid8-9-x", "10Gi", "", api.ClaimPending),
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noevents,
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// Inject deleter into the controller and call syncVolume. The
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// deleter simulates one delete() call that succeeds.
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wrapTestWithControllerConfig(operationDelete, []error{nil}, testSyncVolume),
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},
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}
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runSyncTests(t, tests)
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}
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// Test multiple calls to syncClaim/syncVolume and periodic sync of all
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// volume/claims. The test follows this pattern:
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// 0. Load the controller with initial data.
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// 1. Call controllerTest.testCall() once as in TestSync()
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// 2. For all volumes/claims changed by previous syncVolume/syncClaim calls,
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// call appropriate syncVolume/syncClaim (simulating "volume/claim changed"
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// events). Go to 2. if these calls change anything.
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// 3. When all changes are processed and no new changes were made, call
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// syncVolume/syncClaim on all volumes/claims (simulating "periodic sync").
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// 4. If some changes were done by step 3., go to 2. (simulation of
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// "volume/claim updated" events, eventually performing step 3. again)
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// 5. When 3. does not do any changes, finish the tests and compare final set
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// of volumes/claims with expected claims/volumes and report differences.
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// Some limit of calls in enforced to prevent endless loops.
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func TestDeleteMultiSync(t *testing.T) {
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tests := []controllerTest{
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{
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// delete failure - delete returns error. The controller should
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// try again.
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"9-1 - delete returns error",
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newVolumeArray("volume9-1", "1Gi", "uid9-1", "claim9-1", api.VolumeBound, api.PersistentVolumeReclaimDelete),
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novolumes,
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noclaims,
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noclaims,
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[]string{"Warning VolumeFailedDelete"},
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wrapTestWithControllerConfig(operationDelete, []error{errors.New("Mock delete error"), nil}, testSyncVolume),
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},
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}
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runMultisyncTests(t, tests)
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}
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