PHPUnit makes me crazy

PHPUnitTest.php

<?php

class PHPUnitTest extends \PHPUnit_Framework_TestCase
{
    /**
     * output of this test would be
     * <cite>
     * Failed asserting that 'cat does not have black fur' does not contain "cat does not have black fur".
     * </cite>
     * this is due to bad usage of PHPUnit_Framework_Constraint_Not::negate()
     */
    public function testNotContains()
    {
        $this->assertNotContains('cat has black fur', 'cat has black fur');
        $this->assertNotContains('basket is empty', 'aaaaa basket is empty bbbbbbbb', 'yes we did it');
    }
}

Can you please open a ticket for this? Thanks!