public function testCalculateSpecialPrice() { $this->assertEquals(10, Mage_Catalog_Model_Product_Type_Price::calculateSpecialPrice(10, 8, '1970-12-12 23:59:59', '1971-01-01 01:01:01')); $this->assertEquals(8, Mage_Catalog_Model_Product_Type_Price::calculateSpecialPrice(10, 8, '1970-12-12 23:59:59', '2034-01-01 01:01:01')); }