我设法在一定程度上模拟了 typeorm,但现在我面临着一个奇怪的问题,我将在这里进行说明。
import { myEntity } from './entity';
import typeorm = require('typeorm');
describe('test suire'), () => {
let myRepository: typeorm.Repository<myEntity>;
test('my test case', () => {
typeorm.Repository = jest.fn().mockReturnValue({
createQueryBuilder: jest.fn().mockReturnValue({
where: jest.fn().mockReturnThis(),
getMany: jest.fn().mockReturnValue([]);
})
});
myRepository = new typeorm.Repository();
expect(myRepository.createQueryBuilder).toHaveBeenCalledTimes(0);
})
})
我有一个像这样的包结构:
root/
package.json
project1/
package.json
src/
the_above_test.spec.ts
当我从 project1
运行 node_modules/.bin/jest path_to_above_test.spec.ts
时,它可以工作。但是当我从 root
运行相同的命令时,我得到:
Matcher error: received value must be a mock or spy function
Received has value: undefined at line:
expect(myRepository.createQueryBuilder).toHaveBeenCalledTimes(0);
此处的目的是从 VS Code 中调试测试。但由于 VS code 在根级别打开,因此它从那里执行测试。如果我的代码中没有错误,我如何告诉 VS Code 从 project1
目录运行测试?
最佳答案
您可以在 /.vscode/launch.json
中指定不同的 jest 配置
每个配置都有自己的工作目录,使用“cwd”
指定。
这是一个工作示例:
{
// Use IntelliSense to learn about possible attributes.
// Hover to view descriptions of existing attributes.
// For more information, visit: https://go.microsoft.com/fwlink/?linkid=830387
"version": "0.2.0",
"configurations": [
{
"type": "node",
"name": "functions",
"request": "launch",
"program": "${workspaceFolder}/packages/functions/node_modules/jest/bin/jest",
"args": [
"./test/eventHooks.test.ts",
"--runInBand"
],
"cwd": "${workspaceFolder}/packages/functions",
"console": "integratedTerminal",
"internalConsoleOptions": "neverOpen"
},
{
"type": "node",
"name": "functions",
"request": "launch",
"program": "${workspaceFolder}/packages/types/node_modules/jest/bin/jest",
"args": [
"./test/eventHooks.test.ts",
"--runInBand"
],
"cwd": "${workspaceFolder}/packages/types",
"console": "integratedTerminal",
"internalConsoleOptions": "neverOpen"
}
]
}
关于javascript - 如何从 VSCode 中的多个位置运行 Jest 测试,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/61051681/