单元测试ParameterTest

package com.yiautos.psf.sup.service.impl;

import org.assertj.core.util.Arrays;
import org.junit.Assert;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.junit.runners.Parameterized;

import java.util.Collection;

/**
 * $
 *
 * @author
 * @return $
 * @date $ $
 */
@RunWith(Parameterized.class)
public class ParameterTest {
    private int input1;
    private int input2;
    private int expected;

    /**
     * 准备数据。数据的准备需要在一个方法中进行，该方法需要满足一定的要求：
     * <p>
     * 1）该方法必须由Parameters注解修饰
     * 2）该方法必须为public static的
     * 3）该方法必须返回Collection类型
     * 4）该方法的名字不做要求
     * 5）该方法没有参数
     *
     * @return
     */
    @Parameterized.Parameters
    @SuppressWarnings("unchecked")
    public static Collection prepareData() {
        Object[][] object = {{-1, -2, -3}, {0, 2, 2}, {-1, 1, 0}, {1, 2, 3}};
        return Arrays.asList(object);
    }

    public ParameterTest(int input1, int input2, int expected) {
        this.input1 = input1;
        this.input2 = input2;
        this.expected = expected;
    }

    @Test
    public void testAdd() {
        Add add = new Add();
        int result = add.add(input1, input2);
        Assert.assertEquals(expected, result);
    }

    public class Add {
        public int add(int input1, int input2) {
            return input1 + input2;
        }
    }
}