[feature] eslint rules conflict with mocha timeout

[brick9527]

When I write a mocha test script, it shows an error with no-valid-this

test demo:

describe('my title', () => {
  it('test something', () => {
    this.timeout(1000);
    // do something...
  });
});

mocha timeout refference: https://mochajs.org/#timeouts

[xcatliu]

You can turn off no-invalid-this in your eslintrc file. Alternatively, a better approach would be to use "override" to make it effective only in */.test.js files.