/
container_remove_test.go
202 lines (192 loc) · 6.26 KB
/
container_remove_test.go
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
/*
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 server
import (
"errors"
"testing"
"time"
snapshotapi "github.com/containerd/containerd/api/services/snapshot"
"github.com/containerd/containerd/api/types/mount"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
"golang.org/x/net/context"
runtime "k8s.io/kubernetes/pkg/kubelet/apis/cri/v1alpha1"
"github.com/kubernetes-incubator/cri-containerd/pkg/metadata"
ostesting "github.com/kubernetes-incubator/cri-containerd/pkg/os/testing"
servertesting "github.com/kubernetes-incubator/cri-containerd/pkg/server/testing"
)
// TestSetContainerRemoving tests setContainerRemoving sets removing
// state correctly.
func TestSetContainerRemoving(t *testing.T) {
testID := "test-id"
for desc, test := range map[string]struct {
metadata *metadata.ContainerMetadata
expectErr bool
}{
"should return error when container is in running state": {
metadata: &metadata.ContainerMetadata{
ID: testID,
CreatedAt: time.Now().UnixNano(),
StartedAt: time.Now().UnixNano(),
},
expectErr: true,
},
"should return error when container is in removing state": {
metadata: &metadata.ContainerMetadata{
ID: testID,
CreatedAt: time.Now().UnixNano(),
StartedAt: time.Now().UnixNano(),
FinishedAt: time.Now().UnixNano(),
Removing: true,
},
expectErr: true,
},
"should not return error when container is not running and removing": {
metadata: &metadata.ContainerMetadata{
ID: testID,
CreatedAt: time.Now().UnixNano(),
StartedAt: time.Now().UnixNano(),
FinishedAt: time.Now().UnixNano(),
},
expectErr: false,
},
} {
t.Logf("TestCase %q", desc)
c := newTestCRIContainerdService()
if test.metadata != nil {
assert.NoError(t, c.containerStore.Create(*test.metadata))
}
err := c.setContainerRemoving(testID)
meta, getErr := c.containerStore.Get(testID)
assert.NoError(t, getErr)
if test.expectErr {
assert.Error(t, err)
assert.Equal(t, test.metadata, meta, "metadata should not be updated")
} else {
assert.NoError(t, err)
assert.True(t, meta.Removing, "removing should be set")
}
}
}
func TestRemoveContainer(t *testing.T) {
testID := "test-id"
testName := "test-name"
testContainerMetadata := &metadata.ContainerMetadata{
ID: testID,
CreatedAt: time.Now().UnixNano(),
StartedAt: time.Now().UnixNano(),
FinishedAt: time.Now().UnixNano(),
}
for desc, test := range map[string]struct {
metadata *metadata.ContainerMetadata
removeSnapshotErr error
removeDirErr error
expectErr bool
expectUnsetRemoving bool
}{
"should return error when container is still running": {
metadata: &metadata.ContainerMetadata{
ID: testID,
CreatedAt: time.Now().UnixNano(),
StartedAt: time.Now().UnixNano(),
},
expectErr: true,
},
"should return error when there is ongoing removing": {
metadata: &metadata.ContainerMetadata{
ID: testID,
CreatedAt: time.Now().UnixNano(),
StartedAt: time.Now().UnixNano(),
FinishedAt: time.Now().UnixNano(),
Removing: true,
},
expectErr: true,
},
"should not return error if container does not exist": {
metadata: nil,
removeSnapshotErr: servertesting.SnapshotNotExistError,
expectErr: false,
},
"should not return error if snapshot does not exist": {
metadata: testContainerMetadata,
removeSnapshotErr: servertesting.SnapshotNotExistError,
expectErr: false,
},
"should return error if remove snapshot fails": {
metadata: testContainerMetadata,
removeSnapshotErr: errors.New("random error"),
expectErr: true,
},
"should return error if remove container root fails": {
metadata: testContainerMetadata,
removeDirErr: errors.New("random error"),
expectErr: true,
expectUnsetRemoving: true,
},
"should be able to remove container successfully": {
metadata: testContainerMetadata,
expectErr: false,
},
} {
t.Logf("TestCase %q", desc)
c := newTestCRIContainerdService()
fakeSnapshotClient := WithFakeSnapshotClient(c)
fakeOS := c.os.(*ostesting.FakeOS)
if test.metadata != nil {
assert.NoError(t, c.containerNameIndex.Reserve(testName, testID))
assert.NoError(t, c.containerStore.Create(*test.metadata))
}
fakeOS.RemoveAllFn = func(path string) error {
assert.Equal(t, getContainerRootDir(c.rootDir, testID), path)
return test.removeDirErr
}
if test.removeSnapshotErr == nil {
fakeSnapshotClient.SetFakeMounts(testID, []*mount.Mount{
{
Type: "bind",
Source: "/test/source",
Target: "/test/target",
},
})
} else {
fakeSnapshotClient.InjectError("remove", test.removeSnapshotErr)
}
resp, err := c.RemoveContainer(context.Background(), &runtime.RemoveContainerRequest{
ContainerId: testID,
})
if test.expectErr {
assert.Error(t, err)
assert.Nil(t, resp)
if !test.expectUnsetRemoving {
continue
}
meta, err := c.containerStore.Get(testID)
assert.NoError(t, err)
require.NotNil(t, meta)
// Also covers resetContainerRemoving.
assert.False(t, meta.Removing, "removing state should be unset")
continue
}
assert.NoError(t, err)
assert.NotNil(t, resp)
meta, err := c.containerStore.Get(testID)
assert.Error(t, err)
assert.True(t, metadata.IsNotExistError(err))
assert.Nil(t, meta, "container metadata should be removed")
assert.NoError(t, c.containerNameIndex.Reserve(testName, testID),
"container name should be released")
mountsResp, err := fakeSnapshotClient.Mounts(context.Background(), &snapshotapi.MountsRequest{Key: testID})
assert.Equal(t, servertesting.SnapshotNotExistError, err, "snapshot should be removed")
assert.Nil(t, mountsResp)
}
}