Evil eval

FooTest.php

function testMike()
{
    // mock Mage_Catalog_Model_Product::save for throwing errors
    $alias = 'catalog/product';
    $cookieMock = $this->getMock($alias, array('save'));
    $cookieMock->expects($this->exactly(2))->method('save')->will(
        $this->returnCallback(function  () {
            throw Exception();
        })
    );
    $this->replaceByMock('model', $alias, $cookieMock);
    
    Mage::getModel($alias)->save();
}