Completing our first unit test suite

We have only covered a single scenario with our first unit test. Therefore, we should write more tests to cover every scenario. Try completing the unit test suite for generateValidationErrorMessage yourself; once you are ready, compare your solution with the following one:

import assert from 'assert';
import generateValidationErrorMessage from '.';

describe('generateValidationErrorMessage', function () {
  it('should return the correct string when error.keyword is "required"', function () {
    const errors = [{
      keyword: 'required',
      dataPath: '.test.path',
      params: {
        missingProperty: 'property',
      },
    }];
    const actualErrorMessage = generateValidationErrorMessage(errors);
    const expectedErrorMessage = "The '.test.path.property' field is missing";
    assert.equal(actualErrorMessage, expectedErrorMessage);
  });
  it('should return the correct string when error.keyword is "type"', function () {
    const errors = ...