packer-cn/builder/docker/driver_mock.go

package docker

import (
	"io"
)

// MockDriver is a driver implementation that can be used for tests.
type MockDriver struct {
	DeleteImageCalled bool
	DeleteImageId     string
	DeleteImageErr    error

	ExportReader io.Reader
	ExportError  error
	PullError    error
	StartID      string
	StartError   error
	StopError    error
	VerifyError  error

	ExportCalled bool
	ExportID     string
	PullCalled   bool
	PullImage    string
	StartCalled  bool
	StartConfig  *ContainerConfig
	StopCalled   bool
	StopID       string
	VerifyCalled bool
}

func (d *MockDriver) DeleteImage(id string) error {
	d.DeleteImageCalled = true
	d.DeleteImageId = id
	return d.DeleteImageErr
}

func (d *MockDriver) Export(id string, dst io.Writer) error {
	d.ExportCalled = true
	d.ExportID = id

	if d.ExportReader != nil {
		_, err := io.Copy(dst, d.ExportReader)
		if err != nil {
			return err
		}
	}

	return d.ExportError
}

func (d *MockDriver) Pull(image string) error {
	d.PullCalled = true
	d.PullImage = image
	return d.PullError
}

func (d *MockDriver) StartContainer(config *ContainerConfig) (string, error) {
	d.StartCalled = true
	d.StartConfig = config
	return d.StartID, d.StartError
}

func (d *MockDriver) StopContainer(id string) error {
	d.StopCalled = true
	d.StopID = id
	return d.StopError
}

func (d *MockDriver) Verify() error {
	d.VerifyCalled = true
	return d.VerifyError
}