/** * @depends testAddFilterGetFiltersIsFilters * @return null */ public function testAddFilterDoesNotPreventDuplicates() { $filter = $this->getMock($this->filterInterface); $this->chain->addFilter($filter)->addFilter($filter); $this->assertTrue($this->chain->isFilters()); $expected = array($filter, $filter); $this->assertEquals($expected, $this->chain->getFilters()); }