我有使用MySQL配置的TypeORM的NestJs应用程序。我想要进行e2e(集成)测试,因此,我想在内存数据库中以这种方式配置的测试:
{
type: 'sqlite',
database: ':memory:',
synchronize: true,
dropSchema: true,
entities: [`dist/**/*.entity{.ts,.js}`],
}
以及测试的设置
beforeEach(async () => {
const moduleFixture: TestingModule =
await Test.createTestingModule({imports: [AppModule, UserModule]})
.overrideProvider(TypeOrmConfigService).useClass(MockTypeOrmConfigService)
.compile();
app = await moduleFixture.createNestApplication();
await app.init();
});
。运行测试时,我得到了
AlreadyHasActiveConnectionError: Cannot create a new connection named "default", because connection with such name already exist and it now has an active connection session.
at new AlreadyHasActiveConnectionError (/Users/user/workspace/app/src/error/AlreadyHasActiveConnectionError.ts:8:9)
at ConnectionManager.Object.<anonymous>.ConnectionManager.create (/Users/user/workspace/app/src/connection/ConnectionManager.ts:57:23)
at Object.<anonymous> (/Users/user/workspace/app/src/index.ts:228:35)
at step (/Users/user/workspace/app/node_modules/tslib/tslib.js:136:27)
at Object.next (/Users/user/workspace/app/node_modules/tslib/tslib.js:117:57)
at /Users/user/workspace/app/node_modules/tslib/tslib.js:110:75
at new Promise (<anonymous>)
at Object.__awaiter (/Users/user/workspace/app/node_modules/tslib/tslib.js:106:16)
at Object.createConnection (/Users/user/workspace/app/node_modules/typeorm/index.js:186:20)
at rxjs_1.defer (/Users/user/workspace/app/node_modules/@nestjs/typeorm/dist/typeorm-core.module.js:151:29)
(node:19140) UnhandledPromiseRejectionWarning: AlreadyHasActiveConnectionError: Caught error after test environment was torn down
如果我将设置从beforeEach移到beforeAll块中就可以了,但是恐怕在创建多个规格时错误会再次出现。应该如何正确处理?
编辑:问题是每个测试都在建立应用程序,因此创建了一个新的连接。解决方案是使用“ keepConnectionAlive:true”,以便所有测试都可以重用同一连接。
我有同样的问题,在哪里使用keepConnectionAlive:true?
非常感谢