2018-10-10 22:03:03 +00:00
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2021-02-06 04:42:36 +00:00
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id: 587d8250367417b2b2512c5d
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2021-03-22 13:52:28 +00:00
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title: 使用无头浏览器运行功能测试
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2018-10-10 22:03:03 +00:00
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challengeType: 2
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2020-09-17 10:50:23 +00:00
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forumTopicId: 301595
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2021-01-13 02:31:00 +00:00
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dashedName: run-functional-tests-using-a-headless-browser
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2018-10-10 22:03:03 +00:00
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---
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2020-12-16 07:37:30 +00:00
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# --description--
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2021-03-22 13:52:28 +00:00
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请注意,本项目在[这个 Repl.it 项目](https://repl.it/github/freeCodeCamp/boilerplate-mochachai)的基础上进行开发。 你也可以从 [GitHub](https://repl.it/github/freeCodeCamp/boilerplate-mochachai) 上克隆。
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2020-12-16 07:37:30 +00:00
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2021-03-22 13:52:28 +00:00
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在 HTML 主视图中有一个输入表格。 它发送数据到 `PUT /travellers` 端点,我们在上面的 Ajax 请求中使用。 当请求成功完成时,客户端代码会给 DOM 增加一个包含调用返回信息的 `<div>`。 下面的例子展示了如何使用这个表格:
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2020-09-17 10:50:23 +00:00
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2021-02-06 04:42:36 +00:00
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```js
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test('#test - submit the input "surname" : "Polo"', function (done) {
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browser.fill('surname', 'Polo').pressButton('submit', function () {
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browser.assert.success();
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browser.assert.text('span#name', 'Marco');
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browser.assert.text('span#surname', 'Polo');
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browser.assert.element('span#dates', 1);
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done();
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});
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}
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```
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2021-03-22 13:52:28 +00:00
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首先, `browser` 对象的 `fill` 方法在表格的 `surname` 字段中填入值 `'Polo'`。 紧接着,`pressButton` 方法调用表单的 `submit` 事件监听器。 `pressButton` 方法是异步的。
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2021-03-22 13:52:28 +00:00
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收到 AJAX 请求的响应之后,会有几项断言确认:
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1. 响应状态是 `200`
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2. `<span id='name'></span>` 元素的文本是 `'Marco'`
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3. `<span id='surname'></span>` 元素的文本是 `'Polo'`
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4. 有 `1` 个 `<span id='dates'></span>` 元素。
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2021-03-22 13:52:28 +00:00
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最后,执行 `done`,这是异步测试所必需的。
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2020-12-16 07:37:30 +00:00
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# --instructions--
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2021-03-22 13:52:28 +00:00
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在 `tests/2_functional-tests.js` 中,`'submit "surname" : "Colombo" - write your e2e test...'` 测试(`// #5`),自动化填入和提交表单:
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2021-03-22 13:52:28 +00:00
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1. 填写表单
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2. 点击 `'submit'` 按钮提交表单
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在回调中:
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1. 断言状态是正常的 `200`
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2. 断言元素 `span#name` 中的文本是 `'Cristoforo'`
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3. 断言元素 `span#surname` 元素中的文本是 `'Colombo'`
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4. 断言有 `span#dates` 元素,它们的计数是 `1`
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2018-10-10 22:03:03 +00:00
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2021-03-22 13:52:28 +00:00
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不要忘记删除 `assert.fail()` 调用。
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2018-10-10 22:03:03 +00:00
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2020-12-16 07:37:30 +00:00
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# --hints--
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应通过所有测试。
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2020-12-16 07:37:30 +00:00
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```js
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(getUserInput) =>
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$.get(getUserInput('url') + '/_api/get-tests?type=functional&n=4').then(
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(data) => {
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assert.equal(data.state, 'passed');
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},
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(xhr) => {
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throw new Error(xhr.responseText);
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}
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);
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2018-10-10 22:03:03 +00:00
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```
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2021-03-22 13:52:28 +00:00
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应该断言无头浏览器请求成功。
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2018-10-10 22:03:03 +00:00
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2020-12-16 07:37:30 +00:00
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```js
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(getUserInput) =>
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$.get(getUserInput('url') + '/_api/get-tests?type=functional&n=4').then(
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(data) => {
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assert.equal(data.assertions[0].method, 'browser.success');
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},
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(xhr) => {
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throw new Error(xhr.responseText);
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}
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);
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```
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2018-10-10 22:03:03 +00:00
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2021-03-22 13:52:28 +00:00
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应该断言元素 “span#name” 中的文字为 “Cristoforo”。
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2018-10-10 22:03:03 +00:00
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2020-12-16 07:37:30 +00:00
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```js
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(getUserInput) =>
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$.get(getUserInput('url') + '/_api/get-tests?type=functional&n=4').then(
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(data) => {
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assert.equal(data.assertions[1].method, 'browser.text');
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assert.match(data.assertions[1].args[0], /('|")span#name\1/);
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assert.match(data.assertions[1].args[1], /('|")Cristoforo\1/);
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},
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(xhr) => {
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throw new Error(xhr.responseText);
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}
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);
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```
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2021-03-22 13:52:28 +00:00
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应该断言元素 “span#surname” 中的文字为 “Colombo”。
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2018-10-10 22:03:03 +00:00
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```js
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2020-12-16 07:37:30 +00:00
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(getUserInput) =>
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$.get(getUserInput('url') + '/_api/get-tests?type=functional&n=4').then(
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(data) => {
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assert.equal(data.assertions[2].method, 'browser.text');
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assert.match(data.assertions[2].args[0], /('|")span#surname\1/);
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assert.match(data.assertions[2].args[1], /('|")Colombo\1/);
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},
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(xhr) => {
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throw new Error(xhr.responseText);
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}
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);
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2018-10-10 22:03:03 +00:00
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```
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2020-08-13 15:24:35 +00:00
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2021-03-22 13:52:28 +00:00
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应该断言元素 “span#dates” 存在,且它的值为 1。
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2020-12-16 07:37:30 +00:00
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```js
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(getUserInput) =>
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$.get(getUserInput('url') + '/_api/get-tests?type=functional&n=4').then(
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(data) => {
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assert.equal(data.assertions[3].method, 'browser.element');
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assert.match(data.assertions[3].args[0], /('|")span#dates\1/);
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assert.equal(data.assertions[3].args[1], 1);
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},
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(xhr) => {
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throw new Error(xhr.responseText);
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}
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);
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```
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# --solutions--
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2021-01-13 02:31:00 +00:00
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```js
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/**
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Backend challenges don't need solutions,
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because they would need to be tested against a full working project.
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Please check our contributing guidelines to learn more.
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*/
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```
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