public function testContainsNotAllKeys()
{
$this->assertFalse(SepaUtilities::containsAllKeys(array('a' => 1, 'b' => 2, 'd' => 2), array('a', 'b', 'c')));
$this->assertTrue(SepaUtilities::containsAllKeys(array('a' => 1, 'b' => 2, 'd' => 2), array('a', 'b', 'd')));
}