[英]Why did Jest encounter unexpected token?
I am new to Jest testing and I wrote a small user.test.js我是 Jest 测试的新手,我写了一个小 user.test.js
const mongoose = require('mongoose');
const UserModel = require('../models/User');
const userData = { username: 'TekLoon', email: 'jon@aol.com' };
describe('User Model Test', () => {
beforeAll(async () => {
await mongoose.connect(global.__MONGO_URI__, { useNewUrlParser: true, useCreateIndex: true }, (err) => {
if (err) {
console.error(err);
process.exit(1);
}
});
});
it('create & save user successfully', async () => {
const validUser = new UserModel(userData);
const savedUser = await validUser.save();
// Object Id should be defined when successfully saved to MongoDB.
expect(savedUser._id).toBeDefined();
expect(savedUser.username).toBe(userData.username);
expect(savedUser.email).toBe(userData.email);
});
});
Directory structure目录结构
globalConfig.json
index.js
models
node_modules
package.json
package-lock.json
__tests__
When I run npm run test当我运行 npm run test
FAIL .history/__tests__/user.test_20201027153457.js
● Test suite failed to run
Jest encountered an unexpected token
Details:
SyntaxError: /home/milenko/pract/post/.history/__tests__/user.test_20201027153457.js: Unexpected token (26:7)
24 | expect(savedUser.username).toBe(userData.username);
25 | expect(savedUser.email).toBe(userData.email);
> 26 | });
| ^
I followed Christian's advice,problems are again here我听从了 Christian 的建议,问题又来了
FAIL __tests__/jest-mongodb-config.js
● Test suite failed to run
Your test suite must contain at least one test.
at onResult (node_modules/@jest/core/build/TestScheduler.js:175:18)
at node_modules/@jest/core/build/TestScheduler.js:304:17
at node_modules/emittery/index.js:260:13
at Array.map (<anonymous>)
at Emittery.Typed.emit (node_modules/emittery/index.js:258:23)
FAIL __tests__/jest.config.js
● Test suite failed to run
Your test suite must contain at least one test.
at onResult (node_modules/@jest/core/build/TestScheduler.js:175:18)
at node_modules/@jest/core/build/TestScheduler.js:304:17
at node_modules/emittery/index.js:260:13
at Array.map (<anonymous>)
at Emittery.Typed.emit (node_modules/emittery/index.js:258:23)
I will add image to highlight我将添加图像以突出显示
Comma expected?逗号预期?
How to fix this?如何解决这个问题?
You need to add closing parenthesis for describe
and beforeAll
您需要为
describe
和beforeAll
添加beforeAll
括号
const mongoose = require('mongoose');
const UserModel = require('../models/User');
const userData = { username: 'TekLoon', email:'jon@aol.com' };
describe('User Model Test', () => {
beforeAll(async () => {
await mongoose.connect(global.__MONGO_URI__, { useNewUrlParser: true, useCreateIndex: true }, (err) => {
if (err) {
console.error(err);
process.exit(1);
}
});
}) // added closing parenthesis
it('create & save user successfully', async () => {
const validUser = new UserModel(userData);
const savedUser = await validUser.save();
// Object Id should be defined when successfully saved to MongoDB.
expect(savedUser._id).toBeDefined();
expect(savedUser.username).toBe(userData.username);
expect(savedUser.email).toBe(userData.email);
});
}); // added closing parenthesis
I managed to solve this problem.我设法解决了这个问题。 Compilers behaviour was somehow misleading.
编译器的行为在某种程度上具有误导性。 The solution was to put
jest.config.js
with this content解决方案是将
jest.config.js
与此内容
module.exports = {
preset: '@shelf/jest-mongodb',
};
and jest-mongodb-config.js和 jest-mongodb-config.js
module.exports = {
mongodbMemoryServerOptions: {
instance: {
dbName: 'jest'
},
binary: {
version: '4.4.1',
skipMD5: true
},
autoStart: false
}
};
in PROJECT directory( tests is reserved only for test files).在 PROJECT 目录中(测试仅保留用于测试文件)。 Works fine now(simple example)
现在工作正常(简单示例)
tests__/user.test.js
User Model Test
✓ create & save user successfully (19 ms)
Test Suites: 1 passed, 1 total
Tests: 1 passed, 1 total
Snapshots: 0 total
Time: 0.895 s, estimated 2 s
Ran all test suites.
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