public function testGetCacheTags() { $this->assertContains(Mage_Core_Block_Abstract::CACHE_GROUP, $this->_block->getCacheTags()); $this->_block->setCacheTags(array('one', 'two')); $tags = $this->_block->getCacheTags(); $this->assertContains(Mage_Core_Block_Abstract::CACHE_GROUP, $tags); $this->assertContains('one', $tags); $this->assertContains('two', $tags); }