junit高级篇（参数化、打包测试）-实例代码

工程目录：

参数化测试，SquareTest.java:

 1 import static org.junit.Assert.*;
 2
 3 import java.util.Arrays;
 4 import java.util.Collection;
 5
 6 import org.junit.Before;
 7 import org.junit.Test;
 8 import org.junit.runner.RunWith;
 9 import org.junit.runners.Parameterized;
10 import org.junit.runners.Parameterized.Parameters;
11
12 @RunWith(Parameterized.class)
13 public class SquareTest {
14     private static Calculator calculator = new Calculator();
15     private int param;
16     private int result;
17
18
19     @Parameters
20     public static Collection data(){
21         return Arrays.asList(new Object[][]{
22                 {2,4},
23                 {0,0},
24                 {-3,9},
25         });
26     }
27
28     //构造函数，对变量进行初始化
29     public SquareTest(int param,int result){
30         this.param = param;
31         this.result = result;
32     }
33
34     @Test
35     public void square(){
36         calculator.square(param);
37         assertEquals(result,calculator.getResult());
38     }
39
40 }

打包测试，AllCalculatorTests.java:

 1 import org.junit.runner.RunWith;
 2 import org.junit.runners.Suite;
 3
 4 @RunWith(Suite.class)
 5 @Suite.SuiteClasses({
 6     CalculatorTest.class,
 7     SquareTest.class
 8 })
 9 public class AllCalculatorTests {
10
11 }

执行AllCalculatorTests.java的结果