Symfony\Component\Console\Tests\Helper\QuestionHelperTest::testLegacyAskWithAutocompleteWithNonSequentialKeys PHP Method

    public function testLegacyAskWithAutocompleteWithNonSequentialKeys()
    {
        if (!$this->hasSttyAvailable()) {
            $this->markTestSkipped('`stty` is required to test autocomplete functionality');
        }

        // <UP ARROW><UP ARROW><NEWLINE><DOWN ARROW><DOWN ARROW><NEWLINE>
        $inputStream = $this->getInputStream("\033[A\033[A\n\033[B\033[B\n");

        $dialog = new QuestionHelper();
        $dialog->setInputStream($inputStream);
        $dialog->setHelperSet(new HelperSet(array(new FormatterHelper())));

        $question = new ChoiceQuestion('Please select a bundle', array(1 => 'AcmeDemoBundle', 4 => 'AsseticBundle'));
        $question->setMaxAttempts(1);

        $this->assertEquals('AcmeDemoBundle', $dialog->ask($this->createInputInterfaceMock(), $this->createOutputInterface(), $question));
        $this->assertEquals('AsseticBundle', $dialog->ask($this->createInputInterfaceMock(), $this->createOutputInterface(), $question));
    }