Golang runtime.Exists函数代码示例

func TestDestroy(t *testing.T) {
	runtime := mkRuntime(t)
	defer nuke(runtime)

	container, _, err := runtime.Create(&Config{
		Image: GetTestImage(runtime).ID,
		Cmd:   []string{"ls", "-al"},
	}, "")
	if err != nil {
		t.Fatal(err)
	}
	// Destroy
	if err := runtime.Destroy(container); err != nil {
		t.Error(err)
	}

	// Make sure runtime.Exists() behaves correctly
	if runtime.Exists("test_destroy") {
		t.Errorf("Exists() returned true")
	}

	// Make sure runtime.List() doesn't list the destroyed container
	if len(runtime.List()) != 0 {
		t.Errorf("Expected 0 container, %v found", len(runtime.List()))
	}

	// Make sure runtime.Get() refuses to return the unexisting container
	if runtime.Get(container.ID) != nil {
		t.Errorf("Unable to get newly created container")
	}

	// Make sure the container root directory does not exist anymore
	_, err = os.Stat(container.root)
	if err == nil || !os.IsNotExist(err) {
		t.Errorf("Container root directory still exists after destroy")
	}

	// Test double destroy
	if err := runtime.Destroy(container); err == nil {
		// It should have failed
		t.Errorf("Double destroy did not fail")
	}
}

func TestDestroyWithInitLayer(t *testing.T) {
	runtime := mkRuntime(t)
	defer nuke(runtime)

	container, _, err := runtime.Create(&docker.Config{
		Image: GetTestImage(runtime).ID,
		Cmd:   []string{"ls", "-al"},
	}, "")

	if err != nil {
		t.Fatal(err)
	}
	// Destroy
	if err := runtime.Destroy(container); err != nil {
		t.Fatal(err)
	}

	// Make sure runtime.Exists() behaves correctly
	if runtime.Exists("test_destroy") {
		t.Fatalf("Exists() returned true")
	}

	// Make sure runtime.List() doesn't list the destroyed container
	if len(runtime.List()) != 0 {
		t.Fatalf("Expected 0 container, %v found", len(runtime.List()))
	}

	driver := runtime.Graph().Driver()

	// Make sure that the container does not exist in the driver
	if _, err := driver.Get(container.ID); err == nil {
		t.Fatal("Conttainer should not exist in the driver")
	}

	// Make sure that the init layer is removed from the driver
	if _, err := driver.Get(fmt.Sprintf("%s-init", container.ID)); err == nil {
		t.Fatal("Container's init layer should not exist in the driver")
	}
}

func TestRuntimeCreate(t *testing.T) {
	runtime := mkRuntime(t)
	defer nuke(runtime)

	// Make sure we start we 0 containers
	if len(runtime.List()) != 0 {
		t.Errorf("Expected 0 containers, %v found", len(runtime.List()))
	}

	container, _, err := runtime.Create(&docker.Config{
		Image: GetTestImage(runtime).ID,
		Cmd:   []string{"ls", "-al"},
	},
		"",
	)
	if err != nil {
		t.Fatal(err)
	}

	defer func() {
		if err := runtime.Destroy(container); err != nil {
			t.Error(err)
		}
	}()

	// Make sure we can find the newly created container with List()
	if len(runtime.List()) != 1 {
		t.Errorf("Expected 1 container, %v found", len(runtime.List()))
	}

	// Make sure the container List() returns is the right one
	if runtime.List()[0].ID != container.ID {
		t.Errorf("Unexpected container %v returned by List", runtime.List()[0])
	}

	// Make sure we can get the container with Get()
	if runtime.Get(container.ID) == nil {
		t.Errorf("Unable to get newly created container")
	}

	// Make sure it is the right container
	if runtime.Get(container.ID) != container {
		t.Errorf("Get() returned the wrong container")
	}

	// Make sure Exists returns it as existing
	if !runtime.Exists(container.ID) {
		t.Errorf("Exists() returned false for a newly created container")
	}

	// Test that conflict error displays correct details
	testContainer, _, _ := runtime.Create(
		&docker.Config{
			Image: GetTestImage(runtime).ID,
			Cmd:   []string{"ls", "-al"},
		},
		"conflictname",
	)
	if _, _, err := runtime.Create(&docker.Config{Image: GetTestImage(runtime).ID, Cmd: []string{"ls", "-al"}}, testContainer.Name); err == nil || !strings.Contains(err.Error(), utils.TruncateID(testContainer.ID)) {
		t.Fatalf("Name conflict error doesn't include the correct short id. Message was: %s", err.Error())
	}

	// Make sure create with bad parameters returns an error
	if _, _, err = runtime.Create(&docker.Config{Image: GetTestImage(runtime).ID}, ""); err == nil {
		t.Fatal("Builder.Create should throw an error when Cmd is missing")
	}

	if _, _, err := runtime.Create(
		&docker.Config{
			Image: GetTestImage(runtime).ID,
			Cmd:   []string{},
		},
		"",
	); err == nil {
		t.Fatal("Builder.Create should throw an error when Cmd is empty")
	}

	config := &docker.Config{
		Image:     GetTestImage(runtime).ID,
		Cmd:       []string{"/bin/ls"},
		PortSpecs: []string{"80"},
	}
	container, _, err = runtime.Create(config, "")

	_, err = runtime.Commit(container, "testrepo", "testtag", "", "", config)
	if err != nil {
		t.Error(err)
	}

	// test expose 80:8000
	container, warnings, err := runtime.Create(&docker.Config{
		Image:     GetTestImage(runtime).ID,
		Cmd:       []string{"ls", "-al"},
		PortSpecs: []string{"80:8000"},
	},
		"",
	)
	if err != nil {
		t.Fatal(err)
	}
//.........这里部分代码省略.........

func TestRuntimeCreate(t *testing.T) {
	runtime := mkRuntime(t)
	defer nuke(runtime)

	// Make sure we start we 0 containers
	if len(runtime.List()) != 0 {
		t.Errorf("Expected 0 containers, %v found", len(runtime.List()))
	}

	builder := NewBuilder(runtime)

	container, err := builder.Create(&Config{
		Image: GetTestImage(runtime).ID,
		Cmd:   []string{"ls", "-al"},
	},
	)
	if err != nil {
		t.Fatal(err)
	}

	defer func() {
		if err := runtime.Destroy(container); err != nil {
			t.Error(err)
		}
	}()

	// Make sure we can find the newly created container with List()
	if len(runtime.List()) != 1 {
		t.Errorf("Expected 1 container, %v found", len(runtime.List()))
	}

	// Make sure the container List() returns is the right one
	if runtime.List()[0].ID != container.ID {
		t.Errorf("Unexpected container %v returned by List", runtime.List()[0])
	}

	// Make sure we can get the container with Get()
	if runtime.Get(container.ID) == nil {
		t.Errorf("Unable to get newly created container")
	}

	// Make sure it is the right container
	if runtime.Get(container.ID) != container {
		t.Errorf("Get() returned the wrong container")
	}

	// Make sure Exists returns it as existing
	if !runtime.Exists(container.ID) {
		t.Errorf("Exists() returned false for a newly created container")
	}

	// Make sure crete with bad parameters returns an error
	_, err = builder.Create(
		&Config{
			Image: GetTestImage(runtime).ID,
		},
	)
	if err == nil {
		t.Fatal("Builder.Create should throw an error when Cmd is missing")
	}

	_, err = builder.Create(
		&Config{
			Image: GetTestImage(runtime).ID,
			Cmd:   []string{},
		},
	)
	if err == nil {
		t.Fatal("Builder.Create should throw an error when Cmd is empty")
	}
}