public function testMerge()
{
$validationResultA = new ValidationResult(new ValidationError('foo'));
$validationResultB = new ValidationResult();
$validationResultC = new ValidationResult(new ValidationError('bar'), new ValidationError('baz'));
$validationResult = $validationResultA->merge($validationResultB)->merge($validationResultC);
$this->assertFalse($validationResult->isSuccess());
ValidationErrorAssertion::assertErrorMessages($this, $validationResult, ['foo' => [], 'bar' => [], 'baz' => []]);
}
