mirror of
https://github.com/moby/moby.git
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148 lines
3.3 KiB
Go
148 lines
3.3 KiB
Go
package containerd
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import (
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"context"
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"io/ioutil"
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"os"
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"sync"
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"testing"
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"time"
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"github.com/docker/docker/libcontainerd"
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"github.com/opencontainers/runtime-spec/specs-go"
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"github.com/pkg/errors"
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"gotest.tools/assert"
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)
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func TestLifeCycle(t *testing.T) {
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t.Parallel()
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mock := newMockClient()
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exec, cleanup := setupTest(t, mock, mock)
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defer cleanup()
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id := "test-create"
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mock.simulateStartError(true, id)
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err := exec.Create(id, specs.Spec{}, nil, nil)
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assert.Assert(t, err != nil)
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mock.simulateStartError(false, id)
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err = exec.Create(id, specs.Spec{}, nil, nil)
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assert.NilError(t, err)
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running, _ := exec.IsRunning(id)
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assert.Assert(t, running)
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// create with the same ID
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err = exec.Create(id, specs.Spec{}, nil, nil)
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assert.Assert(t, err != nil)
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mock.HandleExitEvent(id) // simulate a plugin that exits
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err = exec.Create(id, specs.Spec{}, nil, nil)
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assert.NilError(t, err)
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}
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func setupTest(t *testing.T, client Client, eh ExitHandler) (*Executor, func()) {
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rootDir, err := ioutil.TempDir("", "test-daemon")
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assert.NilError(t, err)
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assert.Assert(t, client != nil)
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assert.Assert(t, eh != nil)
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return &Executor{
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rootDir: rootDir,
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client: client,
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exitHandler: eh,
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}, func() {
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assert.Assert(t, os.RemoveAll(rootDir))
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}
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}
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type mockClient struct {
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mu sync.Mutex
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containers map[string]bool
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errorOnStart map[string]bool
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}
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func newMockClient() *mockClient {
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return &mockClient{
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containers: make(map[string]bool),
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errorOnStart: make(map[string]bool),
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}
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}
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func (c *mockClient) Create(ctx context.Context, id string, _ *specs.Spec, _ interface{}) error {
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c.mu.Lock()
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defer c.mu.Unlock()
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if _, ok := c.containers[id]; ok {
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return errors.New("exists")
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}
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c.containers[id] = false
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return nil
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}
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func (c *mockClient) Restore(ctx context.Context, id string, attachStdio libcontainerd.StdioCallback) (alive bool, pid int, err error) {
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return false, 0, nil
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}
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func (c *mockClient) Status(ctx context.Context, id string) (libcontainerd.Status, error) {
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c.mu.Lock()
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defer c.mu.Unlock()
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running, ok := c.containers[id]
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if !ok {
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return libcontainerd.StatusUnknown, errors.New("not found")
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}
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if running {
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return libcontainerd.StatusRunning, nil
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}
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return libcontainerd.StatusStopped, nil
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}
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func (c *mockClient) Delete(ctx context.Context, id string) error {
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c.mu.Lock()
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defer c.mu.Unlock()
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delete(c.containers, id)
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return nil
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}
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func (c *mockClient) DeleteTask(ctx context.Context, id string) (uint32, time.Time, error) {
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return 0, time.Time{}, nil
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}
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func (c *mockClient) Start(ctx context.Context, id, checkpointDir string, withStdin bool, attachStdio libcontainerd.StdioCallback) (pid int, err error) {
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c.mu.Lock()
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defer c.mu.Unlock()
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if _, ok := c.containers[id]; !ok {
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return 0, errors.New("not found")
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}
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if c.errorOnStart[id] {
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return 0, errors.New("some startup error")
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}
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c.containers[id] = true
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return 1, nil
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}
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func (c *mockClient) SignalProcess(ctx context.Context, containerID, processID string, signal int) error {
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return nil
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}
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func (c *mockClient) simulateStartError(sim bool, id string) {
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c.mu.Lock()
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defer c.mu.Unlock()
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if sim {
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c.errorOnStart[id] = sim
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return
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}
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delete(c.errorOnStart, id)
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}
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func (c *mockClient) HandleExitEvent(id string) error {
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c.mu.Lock()
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defer c.mu.Unlock()
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delete(c.containers, id)
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return nil
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}
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