Function makeProgram

tests/command.showHelpAfterError.test.js:8–17

(t)

  const customHelpMessage = 'See --help';

  function makeProgram(t) {
    const writeMock = t.mock.fn();
    const program = new commander.Command();
    program
      .exitOverride()
      .showHelpAfterError(customHelpMessage)
      .configureOutput({ writeErr: writeMock });

    return { program, writeMock };
  }

  test('when missing command-argument then shows help', (t) => {
    const { program, writeMock } = makeProgram(t);