So I have a project where I am using:
I had it working just fine until I started writing my tests. The test files are inside of each entity folder. For example:
Student
|- Student.ts
|- Student.test.ts
|- StudentService.ts
When I run Jest to execute my tests, everything is just fine and works as expected. However, if I run nodemon --exec ts-node src/index.ts I get an error for the first Jest related function I have, whether it is beforeAll(), afterAll(), describe()...
My tsconfig.json is:
{
"compilerOptions": {
"target": "es6",
"module": "commonjs",
"lib": ["dom", "es6", "es2017", "esnext.asynciterable"],
"sourceMap": true,
"outDir": "./dist",
"moduleResolution": "node",
"types": ["jest", "node"],
"removeComments": true,
"noImplicitAny": true,
"strictNullChecks": true,
"strictFunctionTypes": true,
"noImplicitThis": true,
"noUnusedLocals": true,
"noUnusedParameters": true,
"noImplicitReturns": true,
"noFallthroughCasesInSwitch": true,
"allowSyntheticDefaultImports": true,
"esModuleInterop": true,
"emitDecoratorMetadata": true,
"experimentalDecorators": true
},
"include": ["**/*.ts"],
"exclude": ["node_modules", "**/*.test.ts", "**/*.spec.ts"]
}
My jest.config.js is:
module.exports = {
preset: "ts-jest",
testEnvironment: "node",
roots: ["./src"],
testMatch: [
"**/__tests__/**/*.+(ts|tsx|js)",
"**/?(*.)+(spec|test).+(ts|tsx|js)",
],
transform: {
"^.+\\.(ts|tsx)$": "ts-jest",
},
};
From what I can understand, typescript is trying to compile my test files even when they are set to be excluded inside of the tsconfig.
More information that might be useful: I have jest, ts-jest and @types/jest as devdependencies. I have only one tsconfig.json file and one jest.config.js
Any idea on how to fix this?
I forgot to post the one of the test files, although I don't think it is related to the issue or is the cause of my problem...
import { createTestConnection } from "../../test/createTestConnection";
import { graphqlCall } from "../../test/graphqlCall";
import { Connection } from "typeorm";
let conn: Connection;
beforeAll(async () => {
console.log("Test started");
conn = await createTestConnection(true);
});
afterAll(() => {
conn.close();
});
const addStudentWithoutGuardian = `
mutation addStudentWithoutGuardian($studentInput: StudentInput!) {
addStudent(studentInput: $studentInput) {
id
}
}
`;
describe("Student", () => {
it("create only with basic information", async () => {
console.log(
await graphqlCall({
source: addStudentWithoutGuardian,
variableValues: {
studentInput: {
firstName: "Harry",
lastName: "Smith",
dateOfBirth: "1997-01-30",
pronoun: 0,
gender: 0,
phone: "1231231234",
email: "[email protected]",
addressLine1: "123 Avenue",
city: "Toronto",
state: "Ontario",
postalCode: "X1X1X1",
gradeLevel: "grade level",
},
},
})
);
});
});
Error stack
$ nodemon --exec ts-node src/index.ts
[nodemon] 2.0.7
[nodemon] to restart at any time, enter `rs`
[nodemon] watching path(s): *.*
[nodemon] watching extensions: ts,json
[nodemon] starting `ts-node src/index.ts`
(node:11716) UnhandledPromiseRejectionWarning: ReferenceError: beforeAll is not defined
at Object.<anonymous> (G:\Documents\repos\tms\server\src\model\Student\Student.test.ts:7:1)
at Module._compile (internal/modules/cjs/loader.js:1063:30)
at Module.m._compile (G:\Documents\repos\tms\server\node_modules\ts-node\src\index.ts:1056:23)
at Module._extensions..js (internal/modules/cjs/loader.js:1092:10)
at Object.require.extensions.<computed> [as .ts] (G:\Documents\repos\tms\server\node_modules\ts-node\src\index.ts:1059:12)
at Module.load (internal/modules/cjs/loader.js:928:32)
at Function.Module._load (internal/modules/cjs/loader.js:769:14)
at Module.require (internal/modules/cjs/loader.js:952:19)
at require (internal/modules/cjs/helpers.js:88:18)
at G:\Documents\repos\tms\server\src\util\DirectoryExportedClassesLoader.ts:41:22
(Use `node --trace-warnings ...` to show where the warning was created)
(node:11716) UnhandledPromiseRejectionWarning: Unhandled promise rejection. This error originated either by throwing inside of an async function without a catch block, or by rejecting a promise which was not handled with .catch(). To terminate the node process on unhandled promise rejection, use the CLI flag `--unhandled-rejections=strict` (see https://nodejs.org/api/cli.html#cli_unhandled_rejections_mode). (rejection id: 1)
(node:11716) [DEP0018] DeprecationWarning: Unhandled promise rejections are deprecated. In the future, promise rejections that are not handled will terminate the Node.js process with a non-zero exit code.
[nodemon] clean exit - waiting for changes before restart
My index.ts
import "reflect-metadata";
import { createConnection } from "typeorm";
import express from "express";
import { ApolloServer } from "apollo-server-express";
import cors from "cors";
import { createSchema } from "./utils/createSchema";
(async () => {
const app = express();
app.use(
cors({
origin: ["http://localhost:3000"],
credentials: true,
})
);
await createConnection();
const apolloServer = new ApolloServer({
schema: await createSchema(),
context: ({ req, res }) => ({ req, res }),
});
apolloServer.applyMiddleware({ app, cors: false });
app.listen(4000, () => {
console.log("Express server started");
});
})();
My dependenciesand devDependencies
"dependencies": {
"apollo-server-express": "^2.19.2",
"class-validator": "^0.13.1",
"cors": "^2.8.5",
"dotenv": "^8.2.0",
"express": "^4.17.1",
"faker": "^5.2.0",
"graphql": "^15.4.0",
"pg": "^8.5.1",
"reflect-metadata": "^0.1.13",
"type-graphql": "^1.1.1",
"typeorm": "^0.2.30",
"typeorm-seeding": "^1.6.1"
},
"devDependencies": {
"@types/express": "^4.17.11",
"@types/faker": "^5.1.6",
"@types/jest": "^26.0.20",
"@types/node": "^14.14.21",
"jest": "^26.6.3",
"nodemon": "^2.0.7",
"ts-jest": "^26.5.0",
"ts-node": "^9.1.1",
"typescript": "^4.1.3"
},
So I just figured it out... It was really silly...
The ormconfig.json has a path to scan all the entities, like this:
"entities": ["src/model/**/*.ts"],
I had to change to:
"entities": ["src/model/**/!(*.test.ts)"],
This was the reason why some of my test files were being loaded and then throwing errors related to Jest functions not being found.
I found this solution after searching for a way to exclude certain files in a similar way tsconfig.json does, however, TypeORM has no exclude parameter so it has to be done with like above.
Github issue with the suggestion
Thanks for all the help.