Multi - 自动产生“test idea”

Multi是Brian Marick写的一个小程序，用于为表达式自动产生测试用例（或者叫“test ideas”）。

Multi - Generating test ideas from expressions with booleans and relational operators

A test idea is a brief statement of something that should be tested. For example, if you're testing a square root function, one idea for a test would be "test a number less than zero". The idea is to check if the code handles an error case.

关于这个测试用例设计辅助小工具的基本原理和来源可参考《Testing for Programmers》 ：

http://www.exampler.com/testing-com/writings/half-day-programmer.pdf

下面是使用这个小程序的一个例子：

% multi

Type in an expression.

'q' to quit.

> a && b < c

Test ideas for (a && (b<c)):

a (b<c)

----- ------------

true b barely < c

FALSE true

true b==c

> q

Multi是用java写的小工具，运行需要java支持，安装和运行的方法如下：

1. Fetch either the tar archive or the zip archive. Extract the files.
2. You'll see two jar files: Multi.jar and Trace.jar. Put those in your CLASSPATH.
3. Run the program with java com.testing.multi.Multi (The multi script will save you typing.)

下载地址：

http://www.exampler.com/testing-com/tools/multi/Multi.zip