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Add unit test.

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Signed-off-by: Lantao Liu <lantaol@google.com>
This commit is contained in:
Lantao Liu 2017-05-27 00:43:45 +00:00
parent 80c973a550
commit dee95bc315
3 changed files with 175 additions and 17 deletions
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55
pkg/server/container_create_test.go
View File

@ -21,6 +21,9 @@ import (
"os"
"testing"
rootfsapi "github.com/containerd/containerd/api/services/rootfs"
imagedigest "github.com/opencontainers/go-digest"
imagespec "github.com/opencontainers/image-spec/specs-go/v1"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
"golang.org/x/net/context"
@ -28,6 +31,7 @@ import (
"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"
)
func TestCreateContainer(t *testing.T) {
@ -42,10 +46,20 @@ func TestCreateContainer(t *testing.T) {
Namespace: "test-sandbox-namespace",
Attempt: 2,
}
// Use an image id to avoid image name resolution.
// TODO(random-liu): Change this to image name after we have complete image
// management unit test framework.
testImage := "sha256:c75bebcdd211f41b3a460c7bf82970ed6c75acaab9cd4c9a4e125b03ca113799"
testChainID := imagedigest.Digest("test-chain-id")
testImageMetadata := metadata.ImageMetadata{
ID: testImage,
ChainID: testChainID.String(),
Config: &imagespec.ImageConfig{},
}
testConfig := &runtime.ContainerConfig{
Metadata: testNameMeta,
Image: &runtime.ImageSpec{
Image: "test-image",
Image: testImage,
},
Labels: map[string]string{"a": "b"},
Annotations: map[string]string{"c": "d"},
@ -57,6 +71,8 @@ func TestCreateContainer(t *testing.T) {
for desc, test := range map[string]struct {
sandboxMetadata *metadata.SandboxMetadata
reserveNameErr bool
imageMetadataErr bool
prepareSnapshotErr error
createRootDirErr error
createMetadataErr bool
expectErr bool
@ -84,6 +100,24 @@ func TestCreateContainer(t *testing.T) {
createRootDirErr: errors.New("random error"),
expectErr: true,
},
"should return error if image is not pulled": {
sandboxMetadata: &metadata.SandboxMetadata{
ID: testSandboxID,
Name: makeSandboxName(testSandboxNameMeta),
Config: testSandboxConfig,
},
imageMetadataErr: true,
expectErr: true,
},
"should return error if prepare snapshot fails": {
sandboxMetadata: &metadata.SandboxMetadata{
ID: testSandboxID,
Name: makeSandboxName(testSandboxNameMeta),
Config: testSandboxConfig,
},
prepareSnapshotErr: errors.New("random error"),
expectErr: true,
},
"should be able to create container successfully": {
sandboxMetadata: &metadata.SandboxMetadata{
ID: testSandboxID,
@ -94,12 +128,14 @@ func TestCreateContainer(t *testing.T) {
expectMeta: &metadata.ContainerMetadata{
Name: makeContainerName(testNameMeta, testSandboxNameMeta),
SandboxID: testSandboxID,
ImageRef: testImage,
Config: testConfig,
},
},
} {
t.Logf("TestCase %q", desc)
c := newTestCRIContainerdService()
fakeRootfsClient := c.rootfsService.(*servertesting.FakeRootfsClient)
fakeOS := c.os.(*ostesting.FakeOS)
if test.sandboxMetadata != nil {
assert.NoError(t, c.sandboxStore.Create(*test.sandboxMetadata))
@ -108,6 +144,13 @@ func TestCreateContainer(t *testing.T) {
if test.reserveNameErr {
assert.NoError(t, c.containerNameIndex.Reserve(containerName, "random id"))
}
if !test.imageMetadataErr {
assert.NoError(t, c.imageMetadataStore.Create(testImageMetadata))
}
if test.prepareSnapshotErr != nil {
fakeRootfsClient.InjectError("prepare", test.prepareSnapshotErr)
}
fakeRootfsClient.SetFakeChainIDs([]imagedigest.Digest{testChainID})
rootExists := false
rootPath := ""
fakeOS.MkdirAllFn = func(path string, perm os.FileMode) error {
@ -153,5 +196,15 @@ func TestCreateContainer(t *testing.T) {
// TODO(random-liu): Use fake clock to test CreatedAt.
test.expectMeta.CreatedAt = meta.CreatedAt
assert.Equal(t, test.expectMeta, meta, "container metadata should be created")
assert.Equal(t, []string{"prepare"}, fakeRootfsClient.GetCalledNames(), "prepare should be called")
calls := fakeRootfsClient.GetCalledDetails()
prepareOpts := calls[0].Argument.(*rootfsapi.PrepareRequest)
assert.Equal(t, &rootfsapi.PrepareRequest{
Name: id,
ChainID: testChainID,
// TODO(random-liu): Test readonly rootfs.
Readonly: false,
}, prepareOpts, "prepare request should be correct")
}
}

124
pkg/server/container_start_test.go
View File

@ -26,7 +26,10 @@ import (
"github.com/containerd/containerd/api/services/execution"
"github.com/containerd/containerd/api/types/container"
"github.com/containerd/containerd/api/types/mount"
imagespec "github.com/opencontainers/image-spec/specs-go/v1"
runtimespec "github.com/opencontainers/runtime-spec/specs-go"
"github.com/opencontainers/runtime-tools/generate"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
"golang.org/x/net/context"
@ -38,7 +41,7 @@ import (
)
func getStartContainerTestData() (*runtime.ContainerConfig, *runtime.PodSandboxConfig,
func(*testing.T, string, uint32, *runtimespec.Spec)) {
*imagespec.ImageConfig, func(*testing.T, string, uint32, *runtimespec.Spec)) {
config := &runtime.ContainerConfig{
Metadata: &runtime.ContainerMetadata{
Name: "test-name",
@ -92,11 +95,17 @@ func getStartContainerTestData() (*runtime.ContainerConfig, *runtime.PodSandboxC
CgroupParent: "/test/cgroup/parent",
},
}
imageConfig := &imagespec.ImageConfig{
Env: []string{"ik1=iv1", "ik2=iv2"},
Entrypoint: []string{"/entrypoint"},
Cmd: []string{"cmd"},
WorkingDir: "/workspace",
}
specCheck := func(t *testing.T, id string, sandboxPid uint32, spec *runtimespec.Spec) {
assert.Equal(t, relativeRootfsPath, spec.Root.Path)
assert.Equal(t, []string{"test", "command", "test", "args"}, spec.Process.Args)
assert.Equal(t, "test-cwd", spec.Process.Cwd)
assert.Contains(t, spec.Process.Env, "k1=v1", "k2=v2")
assert.Contains(t, spec.Process.Env, "k1=v1", "k2=v2", "ik1=iv1", "ik2=iv2")
t.Logf("Check bind mount")
found1, found2 := false, false
@ -159,15 +168,15 @@ func getStartContainerTestData() (*runtime.ContainerConfig, *runtime.PodSandboxC
Path: getPIDNamespace(sandboxPid),
})
}
return config, sandboxConfig, specCheck
return config, sandboxConfig, imageConfig, specCheck
}
func TestGeneralContainerSpec(t *testing.T) {
testID := "test-id"
testPid := uint32(1234)
config, sandboxConfig, specCheck := getStartContainerTestData()
config, sandboxConfig, imageConfig, specCheck := getStartContainerTestData()
c := newTestCRIContainerdService()
spec, err := c.generateContainerSpec(testID, testPid, config, sandboxConfig)
spec, err := c.generateContainerSpec(testID, testPid, config, sandboxConfig, imageConfig)
assert.NoError(t, err)
specCheck(t, testID, testPid, spec)
}
@ -175,11 +184,11 @@ func TestGeneralContainerSpec(t *testing.T) {
func TestContainerSpecTty(t *testing.T) {
testID := "test-id"
testPid := uint32(1234)
config, sandboxConfig, specCheck := getStartContainerTestData()
config, sandboxConfig, imageConfig, specCheck := getStartContainerTestData()
c := newTestCRIContainerdService()
for _, tty := range []bool{true, false} {
config.Tty = tty
spec, err := c.generateContainerSpec(testID, testPid, config, sandboxConfig)
spec, err := c.generateContainerSpec(testID, testPid, config, sandboxConfig, imageConfig)
assert.NoError(t, err)
specCheck(t, testID, testPid, spec)
assert.Equal(t, tty, spec.Process.Terminal)
@ -189,27 +198,90 @@ func TestContainerSpecTty(t *testing.T) {
func TestContainerSpecReadonlyRootfs(t *testing.T) {
testID := "test-id"
testPid := uint32(1234)
config, sandboxConfig, specCheck := getStartContainerTestData()
config, sandboxConfig, imageConfig, specCheck := getStartContainerTestData()
c := newTestCRIContainerdService()
for _, readonly := range []bool{true, false} {
config.Linux.SecurityContext.ReadonlyRootfs = readonly
spec, err := c.generateContainerSpec(testID, testPid, config, sandboxConfig)
spec, err := c.generateContainerSpec(testID, testPid, config, sandboxConfig, imageConfig)
assert.NoError(t, err)
specCheck(t, testID, testPid, spec)
assert.Equal(t, readonly, spec.Root.Readonly)
}
}
func TestContainerSpecCommand(t *testing.T) {
for desc, test := range map[string]struct {
criEntrypoint []string
criArgs []string
imageEntrypoint []string
imageArgs []string
expected []string
expectErr bool
}{
"should use cri entrypoint if it's specified": {
criEntrypoint: []string{"a", "b"},
imageEntrypoint: []string{"c", "d"},
imageArgs: []string{"e", "f"},
expected: []string{"a", "b"},
},
"should use cri entrypoint if it's specified even if it's empty": {
criEntrypoint: []string{},
criArgs: []string{"a", "b"},
imageEntrypoint: []string{"c", "d"},
imageArgs: []string{"e", "f"},
expected: []string{"a", "b"},
},
"should use cri entrypoint and args if they are specified": {
criEntrypoint: []string{"a", "b"},
criArgs: []string{"c", "d"},
imageEntrypoint: []string{"e", "f"},
imageArgs: []string{"g", "h"},
expected: []string{"a", "b", "c", "d"},
},
"should use image entrypoint if cri entrypoint is not specified": {
criArgs: []string{"a", "b"},
imageEntrypoint: []string{"c", "d"},
imageArgs: []string{"e", "f"},
expected: []string{"c", "d", "a", "b"},
},
"should use image args if both cri entrypoint and args are not specified": {
imageEntrypoint: []string{"c", "d"},
imageArgs: []string{"e", "f"},
expected: []string{"c", "d", "e", "f"},
},
"should return error if both entrypoint and args are empty": {
expectErr: true,
},
} {
config, _, imageConfig, _ := getStartContainerTestData()
g := generate.New()
config.Command = test.criEntrypoint
config.Args = test.criArgs
imageConfig.Entrypoint = test.imageEntrypoint
imageConfig.Cmd = test.imageArgs
err := setOCIProcessArgs(&g, config, imageConfig)
if test.expectErr {
assert.Error(t, err)
continue
}
assert.NoError(t, err)
assert.Equal(t, test.expected, g.Spec().Process.Args, desc)
}
}
func TestStartContainer(t *testing.T) {
testID := "test-id"
testSandboxID := "test-sandbox-id"
testSandboxPid := uint32(4321)
config, sandboxConfig, specCheck := getStartContainerTestData()
testImageID := "sha256:c75bebcdd211f41b3a460c7bf82970ed6c75acaab9cd4c9a4e125b03ca113799"
config, sandboxConfig, imageConfig, specCheck := getStartContainerTestData()
testMetadata := &metadata.ContainerMetadata{
ID: testID,
Name: "test-name",
SandboxID: testSandboxID,
Config: config,
ImageRef: testImageID,
CreatedAt: time.Now().UnixNano(),
}
testSandboxMetadata := &metadata.SandboxMetadata{
@ -222,10 +294,13 @@ func TestStartContainer(t *testing.T) {
Pid: testSandboxPid,
Status: container.Status_RUNNING,
}
testMounts := []*mount.Mount{{Type: "bind", Source: "test-source"}}
for desc, test := range map[string]struct {
containerMetadata *metadata.ContainerMetadata
sandboxMetadata *metadata.SandboxMetadata
sandboxContainerdContainer *container.Container
imageMetadataErr bool
snapshotMountsErr bool
prepareFIFOErr error
createContainerErr error
startContainerErr error
@ -288,6 +363,24 @@ func TestStartContainer(t *testing.T) {
expectCalls: []string{"info"},
expectErr: true,
},
"should return error when image doesn't exist": {
containerMetadata: testMetadata,
sandboxMetadata: testSandboxMetadata,
sandboxContainerdContainer: testSandboxContainer,
imageMetadataErr: true,
expectStateChange: true,
expectCalls: []string{"info"},
expectErr: true,
},
"should return error when snapshot mounts fails": {
containerMetadata: testMetadata,
sandboxMetadata: testSandboxMetadata,
sandboxContainerdContainer: testSandboxContainer,
snapshotMountsErr: true,
expectStateChange: true,
expectCalls: []string{"info"},
expectErr: true,
},
"should return error when fail to open streaming pipes": {
containerMetadata: testMetadata,
sandboxMetadata: testSandboxMetadata,
@ -329,6 +422,7 @@ func TestStartContainer(t *testing.T) {
c := newTestCRIContainerdService()
fake := c.containerService.(*servertesting.FakeExecutionClient)
fakeOS := c.os.(*ostesting.FakeOS)
fakeRootfsClient := c.rootfsService.(*servertesting.FakeRootfsClient)
if test.containerMetadata != nil {
assert.NoError(t, c.containerStore.Create(*test.containerMetadata))
}
@ -338,6 +432,15 @@ func TestStartContainer(t *testing.T) {
if test.sandboxContainerdContainer != nil {
fake.SetFakeContainers([]container.Container{*test.sandboxContainerdContainer})
}
if !test.imageMetadataErr {
assert.NoError(t, c.imageMetadataStore.Create(metadata.ImageMetadata{
ID: testImageID,
Config: imageConfig,
}))
}
if !test.snapshotMountsErr {
fakeRootfsClient.SetFakeMounts(testID, testMounts)
}
// TODO(random-liu): Test behavior with different streaming config.
fakeOS.OpenFifoFn = func(context.Context, string, int, os.FileMode) (io.ReadWriteCloser, error) {
return nopReadWriteCloser{}, test.prepareFIFOErr
@ -394,6 +497,7 @@ func TestStartContainer(t *testing.T) {
calls := fake.GetCalledDetails()
createOpts, ok := calls[1].Argument.(*execution.CreateRequest)
assert.True(t, ok, "2nd call should be create")
assert.Equal(t, testMounts, createOpts.Rootfs, "rootfs mounts should be correct")
// TODO(random-liu): Test other create options.
spec := &runtimespec.Spec{}
assert.NoError(t, json.Unmarshal(createOpts.Spec.Value, spec))

1
pkg/server/sandbox_run_test.go
View File

@ -126,6 +126,7 @@ func TestGenerateSandboxContainerSpec(t *testing.T) {
expectErr: true,
},
"should return error when env is invalid ": {
// Also covers addImageEnvs.
imageConfigChange: func(c *imagespec.ImageConfig) {
c.Env = []string{"a"}
},