public function testContains() { $a = array( 0 => array('name' => 'main'), 1 => array('name' => 'about') ); $b = array( 0 => array('name' => 'main'), 1 => array('name' => 'about'), 2 => array('name' => 'contact'), 'a' => 'b' ); $this->assertTrue(Set::contains($a, $a)); $this->assertFalse(Set::contains($a, $b)); $this->assertTrue(Set::contains($b, $a)); }