question: Getting `ReferenceError: Cannot access 'XXX' before initialization` in class circular dependency with Jest & Typescript about class-transformer

[Norlandz]

It seems running with ts-node has such problem (/ tsc compiled js file), but running with tsx is fine.
Seems Jest uses ts-node.

[Norlandz]

More workarounds found

workaround -- emitDecoratorMetadata (so far the best)

[]
The solution is to set "emitDecoratorMetadata": false in your tsconfig.json file.
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https://stackoverflow.com/questions/56870661/angular-7-2-1-es6-class-referenceerror-cannot-access-x-before-initializatio \

• but the problem is many other files need emitDecoratorMetadata,
  I cannot specify a diff tsconfig.json for each test file in Jest (tried jest.config.js, just not working)

other behavior

Use array arr_photoFile: Photo[] = []; may not have such problem. Depends on Jest Version though (newer ones fail).

  class User {
    userName: string;
    @classTransformer.Type(() => Photo)
    arr_photoFile: Photo[] = [];

    constructor(userName: string) {
      this.userName = userName;
    }
  }

  class Photo {
    fileName: string;
    @classTransformer.Type(() => User)
    owner: User;

    constructor(fileName: string, owner: User) {
      this.fileName = fileName;
      this.owner = owner;
    }
  }

[github-actions]

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