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package net.micode.notes;
import org.junit.Test;
import static org.junit.Assert.*;
/**
* 示例本地单元测试类
* 功能：演示JUnit框架在Android项目中的基本用法
* 运行环境：开发主机（非Android设备）
* 测试范围：不依赖Android系统API的纯Java逻辑
*/
public class ExampleUnitTest {
* 加法运算测试方法
* 测试目标：验证2 + 2的结果是否等于4
* 断言类型：assertEquals（预期值，实际值）
@Test
public void addition_isCorrect() {
// 验证整数加法运算的正确性
// 若2 + 2不等于4，测试将失败并抛出AssertionError
assertEquals(4, 2 + 2);
}
