public function testIsContainer() { $block = 'block'; $container = 'container'; $this->_layout->addBlock('Mage_Core_Block_Text', $block); $this->_layout->addContainer($container, 'Container'); $this->assertFalse($this->_layout->isContainer($block)); $this->assertTrue($this->_layout->isContainer($container)); $this->assertFalse($this->_layout->isContainer('invalid_name')); }