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:

import static org.junit.Assert.*;

import java.util.Arrays;
import java.util.Collection;

import org.junit.Before;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.junit.runners.Parameterized;
import org.junit.runners.Parameterized.Parameters;

@RunWith(Parameterized.class)
public class SquareTest {
    private static Calculator calculator = new Calculator();
    private int param;
    private int result;
    
    
    @Parameters
    public static Collection data(){
        return Arrays.asList(new Object[][]{
                {2,4},
                {0,0},
                {-3,9},
        });
    }
    
    //构造函数，对变量进行初始化
    public SquareTest(int param,int result){
        this.param = param;
        this.result = result;
    }
    
    @Test
    public void square(){
        calculator.square(param);
        assertEquals(result,calculator.getResult());
    }
    
}

打包测试，AllCalculatorTests.java:

import org.junit.runner.RunWith;
import org.junit.runners.Suite;

@RunWith(Suite.class)
@Suite.SuiteClasses({
    CalculatorTest.class,
    SquareTest.class
})
public class AllCalculatorTests {

}

执行AllCalculatorTests.java的结果