Function TestNewSaveCommandErrors

cli/command/image/save_test.go:16–71

(t *testing.T)

)

func TestNewSaveCommandErrors(t *testing.T) {
	testCases := []struct {
		name          string
		args          []string
		isTerminal    bool
		expectedError string
		imageSaveFunc func(images []string, options ...client.ImageSaveOption) (client.ImageSaveResult, error)
	}{
		{
			name:          "wrong args",
			args:          []string{},
			expectedError: "requires at least 1 argument",
		},
		{
			name:          "output to terminal",
			args:          []string{"output", "file", "arg1"},
			isTerminal:    true,
			expectedError: "cowardly refusing to save to a terminal. Use the -o flag or redirect",
		},
		{
			name:          "ImageSave fail",
			args:          []string{"arg1"},
			isTerminal:    false,
			expectedError: "error saving image",
			imageSaveFunc: func(images []string, options ...client.ImageSaveOption) (client.ImageSaveResult, error) {
				return nil, errors.New("error saving image")
			},
		},
		{
			name:          "output directory does not exist",
			args:          []string{"-o", "fake-dir/out.tar", "arg1"},
			expectedError: `failed to save image: invalid output path: stat fake-dir: no such file or directory`,
		},
		{
			name:          "output file is irregular",
			args:          []string{"-o", "/dev/null", "arg1"},
			expectedError: `failed to save image: cannot write to a character device file`,
		},
		{
			name:          "invalid platform",
			args:          []string{"--platform", "<invalid>", "arg1"},
			expectedError: `invalid platform`,
		},
	}
	for _, tc := range testCases {
		t.Run(tc.name, func(t *testing.T) {
			cli := test.NewFakeCli(&fakeClient{imageSaveFunc: tc.imageSaveFunc})
			cli.Out().SetIsTerminal(tc.isTerminal)
			cmd := newSaveCommand(cli)
			cmd.SetOut(io.Discard)
			cmd.SetErr(io.Discard)
			cmd.SetArgs(tc.args)
			assert.ErrorContains(t, cmd.Execute(), tc.expectedError)
		})
	}
}

func TestNewSaveCommandSuccess(t *testing.T) {