public function testAskAndValidate()
{
$dialog = new QuestionHelper();
$helperSet = new HelperSet(array(new FormatterHelper()));
$dialog->setHelperSet($helperSet);
$error = 'This is not a color!';
$validator = function ($color) use($error) {
if (!in_array($color, array('white', 'black'))) {
throw new \InvalidArgumentException($error);
}
return $color;
};
$question = new Question('What color was the white horse of Henry IV?', 'white');
$question->setValidator($validator);
$question->setMaxAttempts(2);
$dialog->setInputStream($this->getInputStream("\nblack\n"));
$this->assertEquals('white', $dialog->ask($this->createInputInterfaceMock(), $this->createOutputInterface(), $question));
$this->assertEquals('black', $dialog->ask($this->createInputInterfaceMock(), $this->createOutputInterface(), $question));
$dialog->setInputStream($this->getInputStream("green\nyellow\norange\n"));
try {
$this->assertEquals('white', $dialog->ask($this->createInputInterfaceMock(), $this->createOutputInterface(), $question));
$this->fail();
} catch (\InvalidArgumentException $e) {
$this->assertEquals($error, $e->getMessage());
}
}
