My test runs indefinitely without results (see image below). I am pretty new to setting up backend testing environment. Any guidance is much appreciated.
I have provided the snippets of my code, please let me know if you need any additional information.
I tried the below commands.
--clearCache option which did not work
--runInBand option lead to a new error, error Command failed with signal "SIGSEGV".
// testHelper.js
import { DataSource, DataSourceOptions } from "typeorm";
import Database from "better-sqlite3";
export class TestHelper {
private static _instance: TestHelper;
private constructor() { }
public static get instance(): TestHelper {
if (!this._instance) this._instance = new TestHelper();
return this._instance;
}
private dbConnect!: DataSource;
private testdb!: any;
async setupTestDB() {
this.testdb = new Database(":memory:", { verbose: console.log });
this.dbConnect = new DataSource({
name: "default",
type: "better-sqlite3",
database: ":memory:",
entities: ["src/entities/**/*.ts"],
synchronize: true,
} as DataSourceOptions);
await this.dbConnect.initialize()
}
teardownTestDB() {
this.dbConnect.destroy();
this.testdb.close();
}
}// test.ts
import MyEntity from "entities/MyEntity";
import { TestHelper } from './__utils/testHelper';
beforeAll(async () => {
return await TestHelper.instance.setupTestDB();
});
afterAll(() => {
return TestHelper.instance.teardownTestDB();
});
test("create test data and fetch it", async () => {
await MyEntity.insert({
name: "sqlTestEntity"
});
let sqlTestEntity = await MyEntity.find({
where: {
id: '1'
}
});
expect(sqlTestEntity[0].name).toBe("sqlTestEntity");
});//package.json
"scripts": {
....
"test": "NODE_OPTIONS=--experimental-vm-modules npx jest",
....
}
"typeorm": "0.3",
"@types/jest": "^28.1.7",
"jest": "^28.1.3",
// jest.config.js
/** @type {import('ts-jest/dist/types').InitialOptionsTsJest} */
export default {
preset: 'ts-jest',
testEnvironment: 'node',
testTimeout: 20000,
roots: ['src'],
modulePaths: ['<rootDir>/src'],
testPathIgnorePatterns: [
'<rootDir>/node_modules/', "/__utils"
],
moduleDirectories: [
"src"
],
transform: {
"^.+\\.js?$": "babel-jest",
"^.+\\.ts?$": "ts-jest"
},
testRegex: "(/__tests__/.*|(\\.|/)(test|spec))\\.(js?|tsx?)$",
"transform": {
"^.+\\.(t|j)s$": "ts-jest"
},
testEnvironment: "node",
"moduleNameMapper": {
"src/(.*)": "<rootDir>/src/$1"
},
globals: {
"ts-jest": {
"useESM": true
}
},
extensionsToTreatAsEsm: ['.ts'],
moduleNameMapper: {
'^(\\.{1,2}/.*)\\.js$': '$1',
},
};