Code Coverage report stating last closing brace as uncovered

🐛 Bug Report

To Reproduce

Steps to reproduce the behavior: Here is my class:

import { container, inject, injectable } from 'tsyringe';

import AppError from '@shared/errors/AppError';
import ILogger from '@shared/infra/logger/interfaces/ILogger';

import User from '../models/User';
import CheckIfUserExists from './CheckIfUserExistsUseCase';

interface IRequest {
  requestedUserId: string;
  requestingUserId: string;
  requestId: string;
}

@injectable()
class ShowUserUseCase {
  constructor(
    @inject('logger')
    private logger: ILogger
  ) {}

  public async execute({
    requestedUserId,
    requestingUserId,
    requestId,
  }: IRequest): Promise<User> {
    this.logger.log('info', 'Showing a User', {
      requestedUserId,
      requestingUserId,
      requestId,
    });

    const checkIfUserExists = container.resolve(CheckIfUserExists);
    const doesUserExist = await checkIfUserExists.execute({
      id: requestedUserId,
    });

    if (!doesUserExist) {
      this.logger.log('info', 'Requested user does not exist.', {
        requestedUserId,
        requestingUserId,
        requestId,
      });

      throw new AppError('User not found', {}, 404);
    }

    this.logger.log('info', 'User found.', {
      requestedUserId,
      requestingUserId,
      requestId,
    });

    return doesUserExist as User;
  }
}

export default ShowUserUseCase;

Here is the lcov output alongside jest

This happens to every single class of mine. As you can see, it is the only factor that makes this particular class not 100% on coverage of statements and lines. Also not sure why branches is not 100% covered here.

Expected behavior

I expected to a closing brace be a covered line of code.

envinfo

  System:
    OS: Linux 4.19 Ubuntu 20.04.1 LTS (Focal Fossa)
    CPU: (4) x64 Intel(R) Core(TM) i5-4460  CPU @ 3.20GHz
  Binaries:
    Node: 12.19.0 - ~/.nvm/versions/node/v12.19.0/bin/node
    Yarn: 1.22.5 - /usr/bin/yarn
    npm: 6.14.8 - ~/.nvm/versions/node/v12.19.0/bin/npm
  npmPackages:
    jest: 26.6.1 => 26.6.1 

[SimenB]

Ah no wait! It works on Node 14 correctly, but with node 12 I get the same result as you do. Probably something to do with babel’s transform then. I don’t think it’s an issue with Jest, tho?

Closing, but if you still think it’s a bug in Jest we can reopen

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