DockerCLI/cli/command/image/remove_test.go

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package image
import (
"bytes"
"fmt"
"io/ioutil"
"testing"
"github.com/docker/cli/cli/internal/test"
"github.com/docker/docker/api/types"
"github.com/docker/docker/pkg/testutil"
"github.com/docker/docker/pkg/testutil/golden"
"github.com/pkg/errors"
"github.com/stretchr/testify/assert"
)
func TestNewRemoveCommandAlias(t *testing.T) {
cmd := newRemoveCommand(test.NewFakeCli(&fakeClient{}, new(bytes.Buffer)))
assert.True(t, cmd.HasAlias("rmi"))
assert.True(t, cmd.HasAlias("remove"))
assert.False(t, cmd.HasAlias("other"))
}
func TestNewRemoveCommandErrors(t *testing.T) {
testCases := []struct {
name string
args []string
expectedError string
imageRemoveFunc func(image string, options types.ImageRemoveOptions) ([]types.ImageDeleteResponseItem, error)
}{
{
name: "wrong args",
expectedError: "requires at least 1 argument(s).",
},
{
name: "ImageRemove fail",
args: []string{"arg1"},
expectedError: "error removing image",
imageRemoveFunc: func(image string, options types.ImageRemoveOptions) ([]types.ImageDeleteResponseItem, error) {
assert.False(t, options.Force)
assert.True(t, options.PruneChildren)
return []types.ImageDeleteResponseItem{}, errors.Errorf("error removing image")
},
},
}
for _, tc := range testCases {
cmd := NewRemoveCommand(test.NewFakeCli(&fakeClient{
imageRemoveFunc: tc.imageRemoveFunc,
}, new(bytes.Buffer)))
cmd.SetOutput(ioutil.Discard)
cmd.SetArgs(tc.args)
testutil.ErrorContains(t, cmd.Execute(), tc.expectedError)
}
}
func TestNewRemoveCommandSuccess(t *testing.T) {
testCases := []struct {
name string
args []string
imageRemoveFunc func(image string, options types.ImageRemoveOptions) ([]types.ImageDeleteResponseItem, error)
expectedErrMsg string
}{
{
name: "Image Deleted",
args: []string{"image1"},
imageRemoveFunc: func(image string, options types.ImageRemoveOptions) ([]types.ImageDeleteResponseItem, error) {
assert.Equal(t, "image1", image)
return []types.ImageDeleteResponseItem{{Deleted: image}}, nil
},
},
{
name: "Image Deleted with force option",
args: []string{"-f", "image1"},
imageRemoveFunc: func(image string, options types.ImageRemoveOptions) ([]types.ImageDeleteResponseItem, error) {
assert.Equal(t, "image1", image)
return []types.ImageDeleteResponseItem{}, errors.Errorf("error removing image")
},
expectedErrMsg: "error removing image",
},
{
name: "Image Untagged",
args: []string{"image1"},
imageRemoveFunc: func(image string, options types.ImageRemoveOptions) ([]types.ImageDeleteResponseItem, error) {
assert.Equal(t, "image1", image)
return []types.ImageDeleteResponseItem{{Untagged: image}}, nil
},
},
{
name: "Image Deleted and Untagged",
args: []string{"image1", "image2"},
imageRemoveFunc: func(image string, options types.ImageRemoveOptions) ([]types.ImageDeleteResponseItem, error) {
if image == "image1" {
return []types.ImageDeleteResponseItem{{Untagged: image}}, nil
}
return []types.ImageDeleteResponseItem{{Deleted: image}}, nil
},
},
}
for _, tc := range testCases {
buf := new(bytes.Buffer)
errBuf := new(bytes.Buffer)
fakeCli := test.NewFakeCli(&fakeClient{imageRemoveFunc: tc.imageRemoveFunc}, buf)
fakeCli.SetErr(errBuf)
cmd := NewRemoveCommand(fakeCli)
cmd.SetOutput(ioutil.Discard)
cmd.SetArgs(tc.args)
assert.NoError(t, cmd.Execute())
if tc.expectedErrMsg != "" {
assert.Equal(t, tc.expectedErrMsg, errBuf.String())
}
actual := buf.String()
expected := string(golden.Get(t, []byte(actual), fmt.Sprintf("remove-command-success.%s.golden", tc.name))[:])
testutil.EqualNormalizedString(t, testutil.RemoveSpace, actual, expected)
}
}