一、实验要求
1.使用Eclipse安装Junit（4.12），Hamcrest（1.3）
2.使用Eclipse安装Eclemma
3.为三角形问题编写一个Java程序，并用Junit测试程序。
a）三角问题的描述：
函数三角形取三个整数a，b，c，它们是三角形边的长度; 计算三角形是等边，等腰或斜角。
二、实验过程及结果
1、junit，hamcrest和eclemma的安装步骤。
1）从官网下载最新的junit和hamcrest的jar包。
2）在使用时，依次点击“Build path”——“Configure build path”—— “Libraries”——“Add External JARS”，将其添加到项目（操作示意如下图）
3）最后在线安装eclemma：点击“Help”——“Install new software”——输入“eclemma”搜索——勾选排在第一个的版本进行安装。之后，Eclipse会自动为我安装配置eclemma。
2、三角程序测试结果及覆盖报告
针对三角形，分别进行等边、等腰、非等边及非三角形的用例测试。
检验三角形代码如下：
测试代码如下：
实验结果显示：程序运行没有错误，且覆盖路径100%。（测试结果如下图所示）
英文版：
1.Experimental requirements
1）.Install Junit(4.12), Hamcrest(1.3) with Eclipse
2).Install Eclemma with Eclipse
3).Write a java program for the triangle problem and test the program with Junit.
a)Description of triangle problem:
Function triangle takes three integers a,b,c which are length of
triangle sides; calculates whether the triangle is equilateral,
isosceles, or scalene.
2.Experimental process and results
1) junit, hamcrest and eclemma installation steps:
(1)Downloading the latest junit and hamcrest jar package from the official website.
(2) In use, click "Build path" - "Configure build path" - "Libraries" - "Add External JARS", add the junit and hamcrest jar packages to the project (operation shown below)
(3)Finally install eclemma online in eclipse: Click "Help" - "Install new software" - type in "eclemma" and search - select the first version of eclemma to install. After that, Eclipse will automatically install eclemma for me.
2)triangular test results and coverage reports
For the triangle, respectively, equilateral, isosceles, non-equilateral and non-triangular use case test.
Check the triangle code as follows:
Testing code as follows:
The experimental results show that the program runs without error,fault or failure and covers 100% of the test path. (Test results as shown below)
