Ddeboer\DataImport\Tests\Filter\ValidationFilterTest::testFilterWithValid PHP Method

    public function testFilterWithValid()
    {
        $item = array('foo' => 'bar');
        $list = new ConstraintViolationList();
        $this->validator->expects($this->once())->method('validate')->willReturn($list);
        $this->assertTrue(call_user_func($this->filter, $item));
    }