关键词: Web测试, 组合测试, 错误定位

Abstract: In order to facilitate users to find resources of interest, many Web applications may provide search function. If there is a failure in the search function, the Web application will run abnormally and even security problems will be caused. So the search function needs to be fully tested. This paper uses the method of combinatorial testing to generate test cases to test the search function of Web application, where each test case is a string of special characters. For test cases that can cause server errors, this paper uses the method of fault location based on combinatorial testing to find the combinations of characters that can cause server errors. This paper tests 96 websites, including schools, governments and institutions, and it is found that 23 of these sites will meet a server error when searching for some special combinations of characters. The experimental result of fault location indicates that 56% of server errors are caused by the combinations of “%” “<” “’” “\” and other characters.

Key words: Web testing, combinatorial testing, fault location