Problem in the tsconfig.json file when trying to use Jest with Typescript

Question

The error message I am getting is:

File 'd:/Project/server/jest.config.ts' is not under 'rootDir' 
'd:/Project/server/src'. 'rootDir' is expected to contain all source files.
The file is in the program because:
Matched by include pattern '**/*' in 'd:/Project/server/tsconfig.json'

My tsconfig.json file is:

{
 "compilerOptions": {
    "target": "es2020",
    "module": "commonjs",

    "rootDir": "./src",
    "outDir": "./dist",
    "esModuleInterop": true,
    "forceConsistentCasingInFileNames": true,
    "strict": true,
    "skipLibCheck": true
  }
}

My jest.config.ts file is:

export default {
    clearMocks: true,
    collectCoverage: true,
    coverageDirectory: "coverage",
    coverageProvider: "v8",
    transform: {
        "^.+\\.(t|j)sx?$": ["@swc/jest"],
    },
};

I am trying to exactly follow the directives of each documentation.

What am I doing wrong here?

paulokrg · Accepted Answer · 2022-05-18 22:16:54Z

2

For future reference, another possible solution would be to simply change

"rootDir": "./src",

to

"rootDir": "./",

in the tsconfig.json file.

Especially if you don't want to move all your configuration files into the src/ directory.

edited May 18, 2022 at 22:16

answered May 18, 2022 at 22:10

paulokrg

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Comments

AhmedSHA256 · Accepted Answer · 2022-05-18 13:20:07Z

1

You have to move your jest.config.ts file inside your src/ directory in order to work. The error is self explanatory I would say.

answered May 18, 2022 at 13:20

AhmedSHA256

6834 silver badges28 bronze badges

2 Comments

paulokrg Over a year ago

Yes, you are right. I tried to do that, but the problem persisted because I did not Reload Window in VSCode. After the window reloaded, this solution worked.

AhmedSHA256 Over a year ago

Nice. Angular has hot reload anyways, so i dont know why you had to reaload the page manually

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