【关键词】

单元测试框架、HarmonyOS Test、assertThrowError、assertFail、assertEqual

【测试代码及测试结果展示】
这里以新建API9工程自动生成的ohosTest来编写单元测试代码。

1、  测试代码：

import { describe, it, expect } from '@ohos/hypium'
import abilityDelegatorRegistry from '@ohos.application.abilityDelegatorRegistry';class CharacterReader {constructor() {}unconsume(){throw new Error("this is an error")}unconsume1(a: number,b: number){if (a == 1 && b == 2) {throw new Error("this is an error")}}add(a: number,b: number) {return a + b}
}export default function abilityTest() {describe('ActsAbilityTest', function () {// 验证待验证方法的行为时，不带括号it('assertThrowError',0,() => {let reader = new CharacterReader()expect(reader.unconsume).assertThrowError("this is an error")})// expect验证行为不能带括号，目前想要传递参数就另行封装一个空参方法，再转而测试这个空参方法，如下it('assertThrowError', 0, () => {let reader = new CharacterReader();let a = 1;let b = 2;const test:Function = () => {reader.unconsume1(a,b)}expect(test).assertThrowError("this is an error")})// 验证待验证方法的行为时，带括号it('assertEqual',0,() => {let reader = new CharacterReader()expect(reader.add(1,1)).assertEqual(2)})// assertFail断言，使一个用例强制失败it('assertFail',0,() => {let reader = new CharacterReader()expect(reader.unconsume).assertFail()})})
}

2、  测试结果

​

【参考文档】
1、https://developer.harmonyos.com/cn/docs/documentation/doc-guides/harmonyos_jnit_jsunit-0000001092459608

2、https://developer.harmonyos.com/cn/docs/documentation/doc-guides-V3/unit-test-0000001507402510-V3#section160718461418