func TestEngineCpusMemory(t *testing.T) {
engine := NewEngine("test", 0, engOpts)
engine.setState(stateUnhealthy)
assert.False(t, engine.isConnected())
client := mockclient.NewMockClient()
apiClient := engineapimock.NewMockClient()
apiClient.On("Info", mock.Anything).Return(mockInfo, nil)
apiClient.On("ServerVersion", mock.Anything).Return(mockVersion, nil)
apiClient.On("NetworkList", mock.Anything,
mock.AnythingOfType("NetworkListOptions"),
).Return([]types.NetworkResource{}, nil)
apiClient.On("VolumeList", mock.Anything,
mock.AnythingOfType("Args"),
).Return(types.VolumesListResponse{}, nil)
apiClient.On("ImageList", mock.Anything, mock.AnythingOfType("ImageListOptions")).Return([]types.Image{}, nil)
apiClient.On("ContainerList", mock.Anything, types.ContainerListOptions{All: true, Size: false}).Return([]types.Container{}, nil)
apiClient.On("Events", mock.Anything, mock.AnythingOfType("EventsOptions")).Return(&nopCloser{infiniteRead{}}, nil)
assert.NoError(t, engine.ConnectWithClient(client, apiClient))
assert.True(t, engine.isConnected())
assert.True(t, engine.IsHealthy())
assert.Equal(t, engine.UsedCpus(), int64(0))
assert.Equal(t, engine.UsedMemory(), int64(0))
client.Mock.AssertExpectations(t)
apiClient.Mock.AssertExpectations(t)
}
func TestEngineSpecs(t *testing.T) {
engine := NewEngine("test", 0)
assert.False(t, engine.isConnected())
client := mockclient.NewMockClient()
client.On("Info").Return(mockInfo, nil)
client.On("Version").Return(mockVersion, nil)
client.On("ListContainers", true, false, "").Return([]dockerclient.Container{}, nil)
client.On("ListImages").Return([]*dockerclient.Image{}, nil)
client.On("StartMonitorEvents", mock.Anything, mock.Anything, mock.Anything).Return()
assert.NoError(t, engine.ConnectWithClient(client))
assert.True(t, engine.isConnected())
assert.True(t, engine.IsHealthy())
assert.Equal(t, engine.Cpus, mockInfo.NCPU)
assert.Equal(t, engine.Memory, mockInfo.MemTotal)
assert.Equal(t, engine.Labels["storagedriver"], mockInfo.Driver)
assert.Equal(t, engine.Labels["executiondriver"], mockInfo.ExecutionDriver)
assert.Equal(t, engine.Labels["kernelversion"], mockInfo.KernelVersion)
assert.Equal(t, engine.Labels["operatingsystem"], mockInfo.OperatingSystem)
assert.Equal(t, engine.Labels["foo"], "bar")
client.Mock.AssertExpectations(t)
}
func TestStopContainer_DefaultSuccess(t *testing.T) {
c := Container{
containerInfo: &dockerclient.ContainerInfo{
Name: "foo",
Id: "abc123",
Config: &dockerclient.ContainerConfig{},
},
}
ci := &dockerclient.ContainerInfo{
State: &dockerclient.State{
Running: false,
},
}
api := mockclient.NewMockClient()
api.On("KillContainer", "abc123", "SIGTERM").Return(nil)
api.On("InspectContainer", "abc123").Return(ci, nil).Once()
api.On("RemoveContainer", "abc123", true, false).Return(nil)
api.On("InspectContainer", "abc123").Return(&dockerclient.ContainerInfo{}, errors.New("Not Found"))
client := dockerClient{api: api}
err := client.StopContainer(c, time.Second)
assert.NoError(t, err)
api.AssertExpectations(t)
}
func TestNodeContainerLookup(t *testing.T) {
node := NewNode("test-node", 0)
assert.False(t, node.isConnected())
client := mockclient.NewMockClient()
client.On("Info").Return(mockInfo, nil)
client.On("StartMonitorEvents", mock.Anything, mock.Anything, mock.Anything).Return()
client.On("ListContainers", true, false, "").Return([]dockerclient.Container{{Id: "container-id", Names: []string{"/container-name1", "/container-name2"}}}, nil).Once()
client.On("ListImages").Return([]*dockerclient.Image{}, nil).Once()
client.On("InspectContainer", "container-id").Return(&dockerclient.ContainerInfo{Config: &dockerclient.ContainerConfig{CpuShares: 100}}, nil).Once()
assert.NoError(t, node.connectClient(client))
assert.True(t, node.isConnected())
// Invalid lookup
assert.Nil(t, node.Container("invalid-id"))
assert.Nil(t, node.Container(""))
// Container ID lookup.
assert.NotNil(t, node.Container("container-id"))
// Container ID prefix lookup.
assert.NotNil(t, node.Container("container-"))
// Container name lookup.
assert.NotNil(t, node.Container("container-name1"))
assert.NotNil(t, node.Container("container-name2"))
// Container node/name matching.
assert.NotNil(t, node.Container("id/container-name1"))
assert.NotNil(t, node.Container("id/container-name2"))
client.Mock.AssertExpectations(t)
}
func TestUsedCpus(t *testing.T) {
var (
containerNcpu = []int64{1, 2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47}
hostNcpu = []int64{1, 2, 4, 8, 10, 12, 16, 20, 32, 36, 40, 48}
)
engine := NewEngine("test", 0)
client := mockclient.NewMockClient()
for _, hn := range hostNcpu {
for _, cn := range containerNcpu {
if cn <= hn {
mockInfo.NCPU = hn
cpuShares := int64(math.Ceil(float64(cn*1024) / float64(mockInfo.NCPU)))
client.On("Info").Return(mockInfo, nil)
client.On("Version").Return(mockVersion, nil)
client.On("StartMonitorEvents", mock.Anything, mock.Anything, mock.Anything).Return()
client.On("ListImages").Return([]*dockerclient.Image{}, nil).Once()
client.On("ListContainers", true, false, "").Return([]dockerclient.Container{{Id: "test"}}, nil).Once()
client.On("InspectContainer", "test").Return(&dockerclient.ContainerInfo{Config: &dockerclient.ContainerConfig{CpuShares: cpuShares}}, nil).Once()
engine.ConnectWithClient(client)
assert.Equal(t, engine.UsedCpus(), cn)
}
}
}
}
func TestContainerRemovedDuringRefresh(t *testing.T) {
var (
container1 = dockerclient.Container{Id: "c1"}
container2 = dockerclient.Container{Id: "c2"}
info1 *dockerclient.ContainerInfo
info2 = &dockerclient.ContainerInfo{Id: "c2", Config: &dockerclient.ContainerConfig{}}
)
engine := NewEngine("test", 0)
assert.False(t, engine.isConnected())
// A container is removed before it can be inspected.
client := mockclient.NewMockClient()
client.On("Info").Return(mockInfo, nil)
client.On("Version").Return(mockVersion, nil)
client.On("ListImages").Return([]*dockerclient.Image{}, nil)
client.On("StartMonitorEvents", mock.Anything, mock.Anything, mock.Anything).Return()
client.On("ListContainers", true, false, "").Return([]dockerclient.Container{container1, container2}, nil)
client.On("InspectContainer", "c1").Return(info1, errors.New("Not found"))
client.On("InspectContainer", "c2").Return(info2, nil)
assert.NoError(t, engine.ConnectWithClient(client))
assert.Nil(t, engine.RefreshContainers(true))
// List of containers is still valid
containers := engine.Containers()
assert.Len(t, containers, 1)
assert.Equal(t, containers[0].Id, "c2")
client.Mock.AssertExpectations(t)
}
func TestEngineSpecs(t *testing.T) {
engine := NewEngine("test", 0, engOpts)
engine.setState(stateUnhealthy)
assert.False(t, engine.isConnected())
client := mockclient.NewMockClient()
apiClient := engineapimock.NewMockClient()
apiClient.On("Info", mock.Anything).Return(mockInfo, nil)
apiClient.On("ServerVersion", mock.Anything).Return(mockVersion, nil)
apiClient.On("NetworkList", mock.Anything,
mock.AnythingOfType("NetworkListOptions"),
).Return([]types.NetworkResource{}, nil)
apiClient.On("VolumeList", mock.Anything,
mock.AnythingOfType("Args"),
).Return(types.VolumesListResponse{}, nil)
apiClient.On("ImageList", mock.Anything, mock.AnythingOfType("ImageListOptions")).Return([]types.Image{}, nil)
apiClient.On("ContainerList", mock.Anything, types.ContainerListOptions{All: true, Size: false}).Return([]types.Container{}, nil)
apiClient.On("Events", mock.Anything, mock.AnythingOfType("EventsOptions")).Return(&nopCloser{infiniteRead{}}, nil)
assert.NoError(t, engine.ConnectWithClient(client, apiClient))
assert.True(t, engine.isConnected())
assert.True(t, engine.IsHealthy())
assert.Equal(t, engine.Cpus, int64(mockInfo.NCPU))
assert.Equal(t, engine.Memory, mockInfo.MemTotal)
assert.Equal(t, engine.Labels["storagedriver"], mockInfo.Driver)
assert.Equal(t, engine.Labels["executiondriver"], mockInfo.ExecutionDriver)
assert.Equal(t, engine.Labels["kernelversion"], mockInfo.KernelVersion)
assert.Equal(t, engine.Labels["operatingsystem"], mockInfo.OperatingSystem)
assert.Equal(t, engine.Labels["foo"], "bar")
client.Mock.AssertExpectations(t)
apiClient.Mock.AssertExpectations(t)
}
func TestStopContainer_CustomSignalSuccess(t *testing.T) {
c := Container{
containerInfo: &dockerclient.ContainerInfo{
Name: "foo",
Id: "abc123",
Config: &dockerclient.ContainerConfig{
Labels: map[string]string{"com.centurylinklabs.watchtower.stop-signal": "SIGUSR1"}},
},
}
ci := &dockerclient.ContainerInfo{
State: &dockerclient.State{
Running: false,
},
}
api := mockclient.NewMockClient()
api.On("KillContainer", "abc123", "SIGUSR1").Return(nil)
api.On("InspectContainer", "abc123").Return(ci, nil).Once()
api.On("RemoveContainer", "abc123", true, false).Return(nil)
api.On("InspectContainer", "abc123").Return(&dockerclient.ContainerInfo{}, errors.New("Not Found"))
client := dockerClient{api: api}
err := client.StopContainer(c, time.Second)
assert.NoError(t, err)
api.AssertExpectations(t)
}
func TestCreateContainer(t *testing.T) {
var (
config = &ContainerConfig{dockerclient.ContainerConfig{
Image: "busybox",
CpuShares: 1,
Cmd: []string{"date"},
Tty: false,
}}
engine = NewEngine("test", 0)
client = mockclient.NewMockClient()
)
client.On("Info").Return(mockInfo, nil)
client.On("Version").Return(mockVersion, nil)
client.On("StartMonitorEvents", mock.Anything, mock.Anything, mock.Anything).Return()
client.On("ListContainers", true, false, "").Return([]dockerclient.Container{}, nil).Once()
client.On("ListImages").Return([]*dockerclient.Image{}, nil).Once()
assert.NoError(t, engine.ConnectWithClient(client))
assert.True(t, engine.isConnected())
mockConfig := config.ContainerConfig
mockConfig.CpuShares = int64(math.Ceil(float64(config.CpuShares*1024) / float64(mockInfo.NCPU)))
mockConfig.HostConfig.CpuShares = mockConfig.CpuShares
// Everything is ok
name := "test1"
id := "id1"
client.On("CreateContainer", &mockConfig, name).Return(id, nil).Once()
client.On("ListContainers", true, false, fmt.Sprintf(`{"id":[%q]}`, id)).Return([]dockerclient.Container{{Id: id}}, nil).Once()
client.On("ListImages").Return([]*dockerclient.Image{}, nil).Once()
client.On("InspectContainer", id).Return(&dockerclient.ContainerInfo{Config: &config.ContainerConfig}, nil).Once()
container, err := engine.Create(config, name, false)
assert.Nil(t, err)
assert.Equal(t, container.Id, id)
assert.Len(t, engine.Containers(), 1)
// Image not found, pullImage == false
name = "test2"
mockConfig.CpuShares = int64(math.Ceil(float64(config.CpuShares*1024) / float64(mockInfo.NCPU)))
client.On("CreateContainer", &mockConfig, name).Return("", dockerclient.ErrNotFound).Once()
container, err = engine.Create(config, name, false)
assert.Equal(t, err, dockerclient.ErrNotFound)
assert.Nil(t, container)
// Image not found, pullImage == true, and the image can be pulled successfully
name = "test3"
id = "id3"
mockConfig.CpuShares = int64(math.Ceil(float64(config.CpuShares*1024) / float64(mockInfo.NCPU)))
client.On("PullImage", config.Image+":latest", mock.Anything).Return(nil).Once()
client.On("CreateContainer", &mockConfig, name).Return("", dockerclient.ErrNotFound).Once()
client.On("CreateContainer", &mockConfig, name).Return(id, nil).Once()
client.On("ListContainers", true, false, fmt.Sprintf(`{"id":[%q]}`, id)).Return([]dockerclient.Container{{Id: id}}, nil).Once()
client.On("ListImages").Return([]*dockerclient.Image{}, nil).Once()
client.On("InspectContainer", id).Return(&dockerclient.ContainerInfo{Config: &config.ContainerConfig}, nil).Once()
container, err = engine.Create(config, name, true)
assert.Nil(t, err)
assert.Equal(t, container.Id, id)
assert.Len(t, engine.Containers(), 2)
}
func TestResolveImage_WhenImageExisting(t *testing.T) {
c := mockclient.NewMockClient()
c.On("InspectImage", "Foo").Return(&dockerclient.ImageInfo{Id: "ytu678"}, nil)
e := DockerEndpoint{client: c}
imageID, err := e.ResolveImage("Foo")
assert.NoError(t, err)
assert.Equal(t, "ytu678", imageID)
}
func TestDockerEndpointVersion_ErroredClient(t *testing.T) {
c := mockclient.NewMockClient()
c.On("Version").Return(&dockerclient.Version{Version: ""}, errors.New("test error"))
e := DockerEndpoint{client: c}
v, err := e.Version()
assert.Empty(t, "", v)
assert.EqualError(t, err, "test error")
}
func TestOutdatedNode(t *testing.T) {
node := NewNode("test", 0)
client := mockclient.NewMockClient()
client.On("Info").Return(&dockerclient.Info{}, nil)
assert.Error(t, node.connectClient(client))
assert.False(t, node.IsConnected())
client.Mock.AssertExpectations(t)
}
func TestDockerEndpointVersion_Successful(t *testing.T) {
c := mockclient.NewMockClient()
c.On("Version").Return(&dockerclient.Version{Version: "1.6.1"}, nil).Once()
e := DockerEndpoint{client: c}
v, err := e.Version()
assert.NoError(t, err)
assert.Equal(t, "1.6.1", v)
c.AssertExpectations(t)
}
func TestRemoveContainer_Success(t *testing.T) {
c := mockclient.NewMockClient()
c.On("RemoveContainer", "foo", true, false).Return(nil)
e := DockerEndpoint{client: c}
err := e.RemoveContainer("foo")
assert.NoError(t, err)
c.AssertExpectations(t)
}
func TestOutdatedEngine(t *testing.T) {
engine := NewEngine("test", 0)
client := mockclient.NewMockClient()
client.On("Info").Return(&dockerclient.Info{}, nil)
assert.Error(t, engine.ConnectWithClient(client))
assert.False(t, engine.isConnected())
client.Mock.AssertExpectations(t)
}
func TestListContainers_ListError(t *testing.T) {
api := mockclient.NewMockClient()
api.On("ListContainers", false, false, "").Return([]dockerclient.Container{}, errors.New("oops"))
client := dockerClient{api: api}
_, err := client.ListContainers(allContainers)
assert.Error(t, err)
assert.EqualError(t, err, "oops")
api.AssertExpectations(t)
}
func TestResolveImage_WhenInitialInspectErrors(t *testing.T) {
c := mockclient.NewMockClient()
c.On("InspectImage", "Foo").Return(&dockerclient.ImageInfo{}, errors.New("oops"))
e := DockerEndpoint{client: c}
imageID, err := e.ResolveImage("Foo")
assert.Equal(t, "", imageID)
assert.EqualError(t, err, "oops")
c.AssertExpectations(t)
}
func TestResolveImage_WhenImageDoesNotExist(t *testing.T) {
c := mockclient.NewMockClient()
c.On("InspectImage", "Foo").Return(&dockerclient.ImageInfo{}, dockerclient.ErrNotFound).Once()
c.On("PullImage", "Foo", mock.Anything).Return(nil)
c.On("InspectImage", "Foo").Return(&dockerclient.ImageInfo{Id: "yui890"}, nil).Once()
e := DockerEndpoint{client: c}
imageID, err := e.ResolveImage("Foo")
assert.NoError(t, err)
assert.Equal(t, "yui890", imageID)
c.AssertExpectations(t)
}
func TestResolveImage_WhenPullErrors(t *testing.T) {
c := mockclient.NewMockClient()
c.On("InspectImage", "Foo").Return(&dockerclient.ImageInfo{}, dockerclient.ErrNotFound).Once()
c.On("PullImage", "Foo", mock.Anything).Return(errors.New("uh-oh"))
e := DockerEndpoint{client: c}
imageID, err := e.ResolveImage("Foo")
assert.Equal(t, "", imageID)
assert.EqualError(t, err, "uh-oh")
c.AssertExpectations(t)
}
func TestInspectContainer_Success(t *testing.T) {
expected := &dockerclient.ContainerInfo{Id: "foo"}
c := mockclient.NewMockClient()
c.On("InspectContainer", "foo").Return(expected, nil)
e := DockerEndpoint{client: c}
container, err := e.InspectContainer("foo")
assert.NoError(t, err)
assert.Equal(t, expected, container)
c.AssertExpectations(t)
}
func TestListContainers_InspectContainerError(t *testing.T) {
api := mockclient.NewMockClient()
api.On("ListContainers", false, false, "").Return([]dockerclient.Container{{Id: "foo", Names: []string{"bar"}}}, nil)
api.On("InspectContainer", "foo").Return(&dockerclient.ContainerInfo{}, errors.New("uh-oh"))
client := dockerClient{api: api}
_, err := client.ListContainers(allContainers)
assert.Error(t, err)
assert.EqualError(t, err, "uh-oh")
api.AssertExpectations(t)
}
func TestImportImage(t *testing.T) {
// create cluster
c := &Cluster{
engines: make(map[string]*cluster.Engine),
}
// create engione
id := "test-engine"
engine := cluster.NewEngine(id, 0, engOpts)
engine.Name = id
engine.ID = id
// create mock client
client := mockclient.NewMockClient()
apiClient := engineapimock.NewMockClient()
apiClient.On("Info", mock.Anything).Return(mockInfo, nil)
apiClient.On("ServerVersion", mock.Anything).Return(mockVersion, nil)
apiClient.On("NetworkList", mock.Anything,
mock.AnythingOfType("NetworkListOptions"),
).Return([]types.NetworkResource{}, nil)
apiClient.On("VolumeList", mock.Anything, mock.Anything).Return(types.VolumesListResponse{}, nil)
apiClient.On("Events", mock.Anything, mock.AnythingOfType("EventsOptions")).Return(&nopCloser{bytes.NewBufferString("")}, nil)
apiClient.On("ImageList", mock.Anything, mock.AnythingOfType("ImageListOptions")).Return([]types.Image{}, nil)
apiClient.On("ContainerList", mock.Anything, types.ContainerListOptions{All: true, Size: false}).Return([]types.Container{}, nil).Once()
// connect client
engine.ConnectWithClient(client, apiClient)
// add engine to cluster
c.engines[engine.ID] = engine
// import success
readCloser := nopCloser{bytes.NewBufferString("ok")}
apiClient.On("ImageImport", mock.Anything, mock.AnythingOfType("types.ImageImportSource"), mock.Anything, mock.AnythingOfType("types.ImageImportOptions")).Return(readCloser, nil).Once()
callback := func(what, status string, err error) {
// import success
assert.Nil(t, err)
}
c.Import("-", "testImageOK", "latest", bytes.NewReader(nil), callback)
// import error
readCloser = nopCloser{bytes.NewBufferString("error")}
err := fmt.Errorf("Import error")
apiClient.On("ImageImport", mock.Anything, mock.AnythingOfType("types.ImageImportSource"), mock.Anything, mock.AnythingOfType("types.ImageImportOptions")).Return(readCloser, err).Once()
callback = func(what, status string, err error) {
// import error
assert.NotNil(t, err)
}
c.Import("-", "testImageError", "latest", bytes.NewReader(nil), callback)
}
func TestNodeConnectionFailure(t *testing.T) {
node := NewNode("test", 0)
assert.False(t, node.IsConnected())
// Always fail.
client := mockclient.NewMockClient()
client.On("Info").Return(&dockerclient.Info{}, errors.New("fail"))
// Connect() should fail and IsConnected() return false.
assert.Error(t, node.connectClient(client))
assert.False(t, node.IsConnected())
client.Mock.AssertExpectations(t)
}
func TestEngineConnectionFailure(t *testing.T) {
engine := NewEngine("test", 0)
assert.False(t, engine.isConnected())
// Always fail.
client := mockclient.NewMockClient()
client.On("Info").Return(&dockerclient.Info{}, errors.New("fail"))
// Connect() should fail and isConnected() return false.
assert.Error(t, engine.ConnectWithClient(client))
assert.False(t, engine.isConnected())
client.Mock.AssertExpectations(t)
}
func TestEngineState(t *testing.T) {
engine := NewEngine("test", 0, engOpts)
engine.setState(stateUnhealthy)
assert.False(t, engine.isConnected())
client := mockclient.NewMockClient()
apiClient := engineapimock.NewMockClient()
apiClient.On("Info", mock.Anything).Return(mockInfo, nil)
apiClient.On("ServerVersion", mock.Anything).Return(mockVersion, nil)
apiClient.On("NetworkList", mock.Anything,
mock.AnythingOfType("NetworkListOptions"),
).Return([]types.NetworkResource{}, nil)
apiClient.On("VolumeList", mock.Anything,
mock.AnythingOfType("Args"),
).Return(types.VolumesListResponse{}, nil)
apiClient.On("Events", mock.Anything, mock.AnythingOfType("EventsOptions")).Return(&nopCloser{infiniteRead{}}, nil)
// The client will return one container at first, then a second one will appear.
apiClient.On("ImageList", mock.Anything, mock.AnythingOfType("ImageListOptions")).Return([]types.Image{}, nil).Once()
apiClient.On("ContainerList", mock.Anything, types.ContainerListOptions{All: true, Size: false}).Return([]types.Container{{ID: "one"}}, nil).Once()
apiClient.On("ContainerInspect", mock.Anything, "one").Return(types.ContainerJSON{ContainerJSONBase: &types.ContainerJSONBase{HostConfig: &containertypes.HostConfig{Resources: containertypes.Resources{CPUShares: 100}}}, Config: &containertypes.Config{}, NetworkSettings: &types.NetworkSettings{Networks: nil}}, nil).Once()
filterArgs := filters.NewArgs()
filterArgs.Add("id", "two")
apiClient.On("ContainerList", mock.Anything, types.ContainerListOptions{All: true, Size: false, Filter: filterArgs}).Return([]types.Container{{ID: "two"}}, nil).Once()
apiClient.On("ContainerInspect", mock.Anything, "two").Return(types.ContainerJSON{ContainerJSONBase: &types.ContainerJSONBase{HostConfig: &containertypes.HostConfig{Resources: containertypes.Resources{CPUShares: 100}}}, Config: &containertypes.Config{}, NetworkSettings: &types.NetworkSettings{Networks: nil}}, nil).Once()
assert.NoError(t, engine.ConnectWithClient(client, apiClient))
assert.True(t, engine.isConnected())
// The engine should only have a single container at this point.
containers := engine.Containers()
assert.Len(t, containers, 1)
if containers[0].ID != "one" {
t.Fatalf("Missing container: one")
}
// Fake an event which will trigger a refresh. The second container will appear.
engine.handler(events.Message{ID: "two", Status: "created"})
containers = engine.Containers()
assert.Len(t, containers, 2)
if containers[0].ID != "one" && containers[1].ID != "one" {
t.Fatalf("Missing container: one")
}
if containers[0].ID != "two" && containers[1].ID != "two" {
t.Fatalf("Missing container: two")
}
client.Mock.AssertExpectations(t)
apiClient.Mock.AssertExpectations(t)
}
func TestImportImage(t *testing.T) {
// create cluster
c := &Cluster{
engines: make(map[string]*cluster.Engine),
}
// create engione
id := "test-engine"
engine := cluster.NewEngine(id, 0)
engine.Name = id
engine.ID = id
// create mock client
client := mockclient.NewMockClient()
client.On("Info").Return(mockInfo, nil)
client.On("Version").Return(mockVersion, nil)
client.On("StartMonitorEvents", mock.Anything, mock.Anything, mock.Anything).Return()
client.On("ListContainers", true, false, "").Return([]dockerclient.Container{}, nil).Once()
client.On("ListImages", mock.Anything).Return([]*dockerclient.Image{}, nil)
client.On("ListVolumes", mock.Anything).Return([]*dockerclient.Volume{}, nil)
client.On("ListNetworks", mock.Anything).Return([]*dockerclient.NetworkResource{}, nil)
// connect client
engine.ConnectWithClient(client)
// add engine to cluster
c.engines[engine.ID] = engine
// import success
readCloser := nopCloser{bytes.NewBufferString("ok")}
client.On("ImportImage", mock.Anything, mock.Anything, mock.Anything, mock.AnythingOfType("*io.PipeReader")).Return(readCloser, nil).Once()
callback := func(what, status string, err error) {
// import success
assert.Nil(t, err)
}
c.Import("-", "testImageOK", "latest", bytes.NewReader(nil), callback)
// import error
readCloser = nopCloser{bytes.NewBufferString("error")}
err := fmt.Errorf("Import error")
client.On("ImportImage", mock.Anything, mock.Anything, mock.Anything, mock.AnythingOfType("*io.PipeReader")).Return(readCloser, err).Once()
callback = func(what, status string, err error) {
// import error
assert.NotNil(t, err)
}
c.Import("-", "testImageError", "latest", bytes.NewReader(nil), callback)
}
func TestLoadImage(t *testing.T) {
// create cluster
c := &Cluster{
engines: make(map[string]*cluster.Engine),
}
// create engione
id := "test-engine"
engine := cluster.NewEngine(id, 0, engOpts)
engine.Name = id
engine.ID = id
// create mock client
client := mockclient.NewMockClient()
apiClient := engineapimock.NewMockClient()
apiClient.On("Info", mock.Anything).Return(mockInfo, nil)
apiClient.On("ServerVersion", mock.Anything).Return(mockVersion, nil)
apiClient.On("NetworkList", mock.Anything,
mock.AnythingOfType("NetworkListOptions"),
).Return([]types.NetworkResource{}, nil)
apiClient.On("VolumeList", mock.Anything, mock.Anything).Return(types.VolumesListResponse{}, nil)
apiClient.On("Events", mock.Anything, mock.AnythingOfType("EventsOptions")).Return(&nopCloser{bytes.NewBufferString("")}, nil)
apiClient.On("ImageList", mock.Anything, mock.AnythingOfType("ImageListOptions")).Return([]types.Image{}, nil)
apiClient.On("ContainerList", mock.Anything, types.ContainerListOptions{All: true, Size: false}).Return([]types.Container{}, nil).Once()
// connect client
engine.ConnectWithClient(client, apiClient)
// add engine to cluster
c.engines[engine.ID] = engine
// load success
readCloser := nopCloser{bytes.NewBufferString("")}
apiClient.On("ImageLoad", mock.Anything, mock.AnythingOfType("*io.PipeReader"), false).Return(types.ImageLoadResponse{Body: readCloser}, nil).Once()
callback := func(what, status string, err error) {
//if load OK, err will be nil
assert.Nil(t, err)
}
c.Load(bytes.NewReader(nil), callback)
// load error
err := fmt.Errorf("Load error")
apiClient.On("ImageLoad", mock.Anything, mock.AnythingOfType("*io.PipeReader"), false).Return(types.ImageLoadResponse{}, err).Once()
callback = func(what, status string, err error) {
// load error, err is not nil
assert.NotNil(t, err)
}
c.Load(bytes.NewReader(nil), callback)
}
func TestListContainers_Filter(t *testing.T) {
ci := &dockerclient.ContainerInfo{Image: "abc123", Config: &dockerclient.ContainerConfig{Image: "img"}}
ii := &dockerclient.ImageInfo{}
api := mockclient.NewMockClient()
api.On("ListContainers", false, false, "").Return([]dockerclient.Container{{Id: "foo", Names: []string{"bar"}}}, nil)
api.On("InspectContainer", "foo").Return(ci, nil)
api.On("InspectImage", "abc123").Return(ii, nil)
client := dockerClient{api: api}
cs, err := client.ListContainers(noContainers)
assert.NoError(t, err)
assert.Len(t, cs, 0)
api.AssertExpectations(t)
}
func TestListContainers_InspectImageError(t *testing.T) {
ci := &dockerclient.ContainerInfo{Image: "abc123", Config: &dockerclient.ContainerConfig{Image: "img"}}
ii := &dockerclient.ImageInfo{}
api := mockclient.NewMockClient()
api.On("ListContainers", false, false, "").Return([]dockerclient.Container{{Id: "foo", Names: []string{"bar"}}}, nil)
api.On("InspectContainer", "foo").Return(ci, nil)
api.On("InspectImage", "abc123").Return(ii, errors.New("whoops"))
client := dockerClient{api: api}
_, err := client.ListContainers(allContainers)
assert.Error(t, err)
assert.EqualError(t, err, "whoops")
api.AssertExpectations(t)
}
func TestEngineState(t *testing.T) {
engine := NewEngine("test", 0, engOpts)
engine.setState(stateUnhealthy)
assert.False(t, engine.isConnected())
client := mockclient.NewMockClient()
apiClient := engineapimock.NewMockClient()
apiClient.On("Info", mock.Anything).Return(mockInfo, nil)
apiClient.On("ServerVersion", mock.Anything).Return(mockVersion, nil)
apiClient.On("NetworkList", mock.Anything,
mock.AnythingOfType("NetworkListOptions"),
).Return([]types.NetworkResource{}, nil)
apiClient.On("VolumeList", mock.Anything,
mock.AnythingOfType("Args"),
).Return(types.VolumesListResponse{}, nil)
client.On("StartMonitorEvents", mock.Anything, mock.Anything, mock.Anything).Return()
// The client will return one container at first, then a second one will appear.
client.On("ListContainers", true, false, "").Return([]dockerclient.Container{{Id: "one"}}, nil).Once()
apiClient.On("ImageList", mock.Anything, mock.AnythingOfType("ImageListOptions")).Return([]types.Image{}, nil).Once()
client.On("InspectContainer", "one").Return(&dockerclient.ContainerInfo{Config: &dockerclient.ContainerConfig{CpuShares: 100}}, nil).Once()
client.On("ListContainers", true, false, fmt.Sprintf("{%q:[%q]}", "id", "two")).Return([]dockerclient.Container{{Id: "two"}}, nil).Once()
client.On("InspectContainer", "two").Return(&dockerclient.ContainerInfo{Config: &dockerclient.ContainerConfig{CpuShares: 100}}, nil).Once()
assert.NoError(t, engine.ConnectWithClient(client, apiClient))
assert.True(t, engine.isConnected())
// The engine should only have a single container at this point.
containers := engine.Containers()
assert.Len(t, containers, 1)
if containers[0].Id != "one" {
t.Fatalf("Missing container: one")
}
// Fake an event which will trigger a refresh. The second container will appear.
engine.handler(&dockerclient.Event{ID: "two", Status: "created"}, nil)
containers = engine.Containers()
assert.Len(t, containers, 2)
if containers[0].Id != "one" && containers[1].Id != "one" {
t.Fatalf("Missing container: one")
}
if containers[0].Id != "two" && containers[1].Id != "two" {
t.Fatalf("Missing container: two")
}
client.Mock.AssertExpectations(t)
apiClient.Mock.AssertExpectations(t)
}