Function TestDisplayInterpolationVariables

cmd/compose/options_test.go:210–272

(t *testing.T)

}

func TestDisplayInterpolationVariables(t *testing.T) {
	ctrl := gomock.NewController(t)
	defer ctrl.Finish()

	tmpDir := t.TempDir()

	// Create a temporary compose file
	composeContent := `
services:
  app:
    image: nginx
    environment:
      - TEST_VAR=${TEST_VAR:?required}  # required with default
      - API_KEY=${API_KEY:?}            # required without default
      - DEBUG=${DEBUG:-true}            # optional with default
      - UNSET_VAR                       # optional without default
`
	composePath := filepath.Join(tmpDir, "docker-compose.yml")
	assert.NilError(t, os.WriteFile(composePath, []byte(composeContent), 0o644))

	buf := new(bytes.Buffer)
	cli := mocks.NewMockCli(ctrl)
	cli.EXPECT().Out().Return(streams.NewOut(buf)).AnyTimes()

	// Create ProjectOptions with the temporary compose file
	projectOptions := &ProjectOptions{
		ConfigPaths: []string{composePath},
	}

	// Set up the context with necessary environment variables
	t.Setenv("TEST_VAR", "test-value")
	t.Setenv("API_KEY", "123456")

	// Extract variables from the model
	info, noVariables, err := extractInterpolationVariablesFromModel(t.Context(), cli, projectOptions, []string{})
	assert.NilError(t, err)
	assert.Assert(t, noVariables == false)

	// Display the variables
	displayInterpolationVariables(cli.Out(), info)

	// Expected output format with proper spacing
	expected := "\nFound the following variables in configuration:\n" +
		"VARIABLE   VALUE       SOURCE        REQUIRED   DEFAULT\n" +
		"API_KEY    123456      environment   yes         \n" +
		"DEBUG      true       compose file  no         true\n" +
		"TEST_VAR   test-value  environment   yes         \n"

	// Normalize spaces and newlines for comparison
	normalizeSpaces := func(s string) string {
		// Replace multiple spaces with a single space
		s = strings.Join(strings.Fields(strings.TrimSpace(s)), " ")
		return s
	}

	actualOutput := buf.String()

	// Compare normalized strings