@asyncapi/generator/test/utils.test.js

The AsyncAPI generator. It can generate documentation, code, anything!

/* eslint-disable sonarjs/no-duplicate-string */
const path = require('path');
const Generator = require('../lib/generator');
const log = require('loglevel');
const utils = jest.requireActual('../lib/utils');

const logMessage = require('./../lib/logMessages.js');

describe('Utils', () => {
  describe('#getTemplateDetails', () => {
    let resolvePkg, resolveFrom;
    const templateNpmName = 'nameOfTestTemplate';

    beforeEach(() => {
      resolvePkg = require('resolve-pkg');
      resolveFrom = require('resolve-from');
      jest.mock(path.resolve('./testTemplate', 'package.json'), () => ({ name: 'nameOfTestTemplate' }), { virtual: true });
      jest.mock(path.resolve(Generator.DEFAULT_TEMPLATES_DIR, templateNpmName, 'package.json'), () => ({ name: 'nameOfTestTemplate' }), { virtual: true });
    });

    it('works with a file system path', () => {
      log.debug = jest.fn();
      utils.isFileSystemPath = jest.fn(() => true);
      const templatePath = './testTemplate';
      const result = utils.getTemplateDetails(templatePath, 'package.json');
      expect(log.debug).toHaveBeenCalledWith(logMessage.NODE_MODULES_INSTALL);
      expect(result).toStrictEqual({
        name: templateNpmName,
        pkgPath: path.resolve('./testTemplate')
      });
    });

    it('works with an npm package', () => {
      log.debug = jest.fn();
      utils.isFileSystemPath = jest.fn(() => false);
      const packagePath = path.join(Generator.DEFAULT_TEMPLATES_DIR, templateNpmName);
      resolvePkg.__resolvePkgValue = packagePath;
      const result = utils.getTemplateDetails(templateNpmName, 'package.json');
      expect(log.debug).not.toHaveBeenCalledWith(logMessage.NODE_MODULES_INSTALL);
      expect(log.debug).not.toHaveBeenCalledWith(logMessage.templateNotFound(templateNpmName));
      expect(result).toStrictEqual({
        name: templateNpmName,
        pkgPath: packagePath
      });
    });

    it('works with global npm package', () => {
      log.debug = jest.fn();
      utils.isFileSystemPath = jest.fn(() => false);
      resolvePkg.__resolvePkgValue = undefined;
      resolveFrom.__resolveFromValue = path.join(Generator.DEFAULT_TEMPLATES_DIR, templateNpmName, 'package.json');
      utils.getTemplateDetails(templateNpmName, 'package.json');
      expect(log.debug).not.toHaveBeenCalledWith(logMessage.NODE_MODULES_INSTALL);
      expect(log.debug).toHaveBeenCalledWith(logMessage.templateNotFound(templateNpmName));
    });

    it('doesnt work with a url', async () => {
      resolvePkg.__resolvePkgValue = undefined;
      resolveFrom.__resolveFromValue = undefined;
      const result = utils.getTemplateDetails(templateNpmName, 'package.json');
      expect(result).toStrictEqual(undefined);
    });
  });

  describe('#exists', () => {
    it('should return true if file exist', async () => {
      const exists = await utils.exists(`${process.cwd()}/package.json`);
      expect(exists).toBeTruthy();
    });

    it('should return false if file does not exist', async () => {
      const exists = await utils.exists('./invalid-file');
      expect(exists).toBeFalsy();
    });
  });
});