flying-hero
96f6318101
新增: - backend/venv/ - Python 虚拟环境 - backend/start.sh - 启动脚本（使用虚拟环境） - backend/requirements.txt - 依赖列表 - .gitignore - 忽略虚拟环境和缓存文件 说明: - 每个项目使用独立虚拟环境 - 避免依赖冲突 - 启动脚本自动创建和激活虚拟环境
73 lines
1.9 KiB
Markdown
73 lines
1.9 KiB
Markdown
# Ensure promises that have expectations in their chain are valid (`valid-expect-in-promise`)
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Ensure promises that include expectations are returned or awaited.
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## Rule details
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This rule flags any promises within the body of a test that include expectations
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that have either not been returned or awaited.
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The following patterns is considered warning:
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```js
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it('promises a person', () => {
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api.getPersonByName('bob').then(person => {
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expect(person).toHaveProperty('name', 'Bob');
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});
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});
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it('promises a counted person', () => {
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const promise = api.getPersonByName('bob').then(person => {
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expect(person).toHaveProperty('name', 'Bob');
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});
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promise.then(() => {
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expect(analytics.gottenPeopleCount).toBe(1);
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});
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});
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it('promises multiple people', () => {
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const firstPromise = api.getPersonByName('bob').then(person => {
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expect(person).toHaveProperty('name', 'Bob');
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});
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const secondPromise = api.getPersonByName('alice').then(person => {
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expect(person).toHaveProperty('name', 'Alice');
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});
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return Promise.any([firstPromise, secondPromise]);
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});
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```
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The following pattern is not warning:
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```js
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it('promises a person', async () => {
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await api.getPersonByName('bob').then(person => {
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expect(person).toHaveProperty('name', 'Bob');
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});
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});
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it('promises a counted person', () => {
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let promise = api.getPersonByName('bob').then(person => {
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expect(person).toHaveProperty('name', 'Bob');
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});
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promise = promise.then(() => {
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expect(analytics.gottenPeopleCount).toBe(1);
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});
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return promise;
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});
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it('promises multiple people', () => {
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const firstPromise = api.getPersonByName('bob').then(person => {
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expect(person).toHaveProperty('name', 'Bob');
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});
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const secondPromise = api.getPersonByName('alice').then(person => {
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expect(person).toHaveProperty('name', 'Alice');
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});
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return Promise.allSettled([firstPromise, secondPromise]);
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});
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```
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