TypeError: Cannot read property 'some' of undefined

[felinto-dev]

I'm submitting a...

[ ] Regression 
[x] Bug report
[ ] Feature request
[ ] Documentation issue or request
[ ] Support request => Please do not submit support request here, instead post your question on Stack Overflow.

Current behavior

I'm trying to use "GraphQL CLI Plugin" in e2e tests following this tutorial:
https://docs.nestjs.com/graphql/cli-plugin#integration-with-ts-jest-e2e-tests
But the code does not work because when I run the e2e tests I get this error:

api_1  | > jest --config ./test/jest-e2e.json
api_1  |
api_1  | FAIL test/modules/auth/auth.e2e-spec.ts
api_1  |   ● Test suite failed to run
api_1  |
api_1  |     TypeError: Cannot read property 'some' of undefined
api_1  |
api_1  |       4 | module.exports.name = 'nestjs-graphql-transformer';
api_1  |       5 | module.exports.version = 1;
api_1  |     > 6 | module.exports.factory = (cs) => transformer.before({}, cs.tsCompiler.program);
api_1  |         |                                                            ^
api_1  |       7 |
api_1  |
api_1  |       at ConfigSet.isTestFile (../node_modules/ts-jest/dist/config/config-set.js:436:40)
api_1  |       at ../node_modules/ts-jest/dist/compiler/language-service.js:116:55
api_1  |           at Array.filter (<anonymous>)
api_1  |       at Object.exports.initializeLanguageServiceInstance (../node_modules/ts-jest/dist/compiler/language-service.js:116:10)
api_1  |       at Object.exports.createCompilerInstance (../node_modules/ts-jest/dist/compiler/instance.js:51:30)
api_1  |       at ConfigSet.get (../node_modules/ts-jest/dist/config/config-set.js:396:31)
api_1  |       at ConfigSet.<anonymous> (../node_modules/ts-jest/dist/utils/memoize.js:44:24)
api_1  |       at Object.module.exports.factory (test/ast.ts:6:60)
api_1  |       at ../node_modules/ts-jest/dist/config/config-set.js:267:61
api_1  |           at Array.map (<anonymous>)

These are some relevant files about this issue:

jest-e2e.json:

{
  "moduleDirectories": [
    "node_modules",
    "src"
  ],
  "moduleFileExtensions": ["js", "json", "ts"],
  "modulePathIgnorePatterns": ["<rootDir>/dist"],
  "moduleNameMapper": {
    "@/(.*)": "<rootDir>/src/$1"
  },
  "rootDir": "..",
  "testEnvironment": "node",
  "testRegex": ".e2e-spec.ts$",
  "transform": {
    "^.+\\.(t|j)s$": "ts-jest"
  },
  "globals": {
    "ts-jest": {
      "astTransformers": {
        "before": ["<rootDir>/test/ast.ts"]
      }
    }
  }
}

ast.ts:

// eslint-disable-next-line @typescript-eslint/no-var-requires
const transformer = require('@nestjs/graphql/plugin');

module.exports.name = 'nestjs-graphql-transformer';
module.exports.version = 1;
module.exports.factory = (cs) => transformer.before({}, cs.tsCompiler.program);

package.json:

    "test:e2e": "npm run build && jest --config ./test/jest-e2e.json",

Environment

Nest version: 7.5
 
For Tooling issues:
- Node version: 15.15.5
- Platform:  Windows

Others:
@nestjs/graphq: 7.9.8
ts-jest: 26.5.0
ts-node: 9.1.1

[kamilmysliwiec]

Please provide a minimum reproduction repository.

[felinto-dev]

Please provide a minimum reproduction repository.

You need to have Docker installed to replicate this issue.

1. Unzip the package
2. Change the current directory to the zip directory
3. npm i
4. npm run test:e2e-docker

[kamilmysliwiec]

Could you please create a Github repository (instead of sending a .zip file)?

[felinto-dev]

It was not my intention for this project to be public, but ok, I did it
https://github.com/felinto-dev/repo-fntwork-nestjs-issue

I appreciate your help.

[kamilmysliwiec]

Would you be able to make this a minimal reproduction repository (without any additional, unnecessary modules?). This way you wouldn't have to share your entire project too.

[felinto-dev]

I am able to replicate the bug

I used this nests sample project as minimal repository.
https://github.com/nestjs/nest/tree/master/sample/23-graphql-code-first

Please, check the git commit to check what files I changed to reproduce this issue.
https://github.com/felinto-dev/tscompiler-nestjs-issue

Please, let me know if you are able to replicate this issue.

cd project_directory
npm i
npm run test:e2e

[CatsMiaow]

I confirmed it as a problem with the ts-jest version.

v26.4.4 no problem
v26.5.1(latest) error

This is a different story, but with nestjs-graphql-transformer is test speed slow every time I run the test. Perhaps it is because the cache is not applied.

[kamilmysliwiec]

Can we report this issue in the ts-jest repository then? It seems that adding a check whether this._matchablePatterns property is not undefined in the ConfigSet#isTestFile would fix this issue (config-set.js file).

[CatsMiaow]

Created an issue. kulshekhar/ts-jest#2371
There seems to be a code change in ts-jest v26.5.x.

[kamilmysliwiec]

Thanks! Let's track this here kulshekhar/ts-jest#2371

[CatsMiaow]

Fixed in ts-jest v26.5.2