@johnf/react-native-owl/lib/commonjs/report.test.js

Visual regression testing for React Native

"use strict";

var _process = _interopRequireDefault(require("process"));
var _handlebars = _interopRequireDefault(require("handlebars"));
var _fs = require("fs");
var fileExists = _interopRequireWildcard(require("./utils/file-exists.js"));
var _logger = require("./logger.js");
var _report = require("./report.js");
function _getRequireWildcardCache(e) { if ("function" != typeof WeakMap) return null; var r = new WeakMap(), t = new WeakMap(); return (_getRequireWildcardCache = function (e) { return e ? t : r; })(e); }
function _interopRequireWildcard(e, r) { if (!r && e && e.__esModule) return e; if (null === e || "object" != typeof e && "function" != typeof e) return { default: e }; var t = _getRequireWildcardCache(r); if (t && t.has(e)) return t.get(e); var n = { __proto__: null }, a = Object.defineProperty && Object.getOwnPropertyDescriptor; for (var u in e) if ("default" !== u && {}.hasOwnProperty.call(e, u)) { var i = a ? Object.getOwnPropertyDescriptor(e, u) : null; i && (i.get || i.set) ? Object.defineProperty(n, u, i) : n[u] = e[u]; } return n.default = e, t && t.set(e, n), n; }
function _interopRequireDefault(e) { return e && e.__esModule ? e : { default: e }; }
describe('report.ts', () => {
  const logger = new _logger.Logger();
  const htmlTemplate = '<h1>Hello World<h1>';
  const readdirMock = jest.spyOn(_fs.promises, 'readdir');
  const mkdirMock = jest.spyOn(_fs.promises, 'mkdir');
  const readFileMock = jest.spyOn(_fs.promises, 'readFile');
  const writeFileMock = jest.spyOn(_fs.promises, 'writeFile');
  const cwdMock = jest.spyOn(_process.default, 'cwd').mockReturnValue('/Users/johndoe/Projects/my-project');
  beforeEach(() => {
    writeFileMock.mockReset();
  });
  afterEach(() => {
    cwdMock.mockRestore();
    jest.resetAllMocks();
  });
  it('should get the screenshots and create the html report', async () => {
    jest.spyOn(fileExists, 'fileExists').mockResolvedValue(true);
    const handlebarsCompileMock = jest.spyOn(_handlebars.default, 'compile').mockImplementationOnce(() => () => '<h1>Hello World Compiled</h1>');
    readFileMock.mockResolvedValueOnce('{}').mockResolvedValueOnce(htmlTemplate);
    mkdirMock.mockResolvedValue(undefined);
    readdirMock.mockResolvedValue([]);
    await (0, _report.generateReport)(logger, 'ios');
    expect(readdirMock).toHaveBeenCalledWith('/Users/johndoe/Projects/my-project/.owl/diff/ios');
    expect(readdirMock).toHaveBeenCalledWith('/Users/johndoe/Projects/my-project/.owl/baseline/ios');
    expect(handlebarsCompileMock).toHaveBeenCalledTimes(1);
    expect(writeFileMock).toHaveBeenCalledWith('/Users/johndoe/Projects/my-project/.owl/report/index.html', '<h1>Hello World Compiled</h1>');
  });
  it('should not generate the report if there is no baseline screenshots directory', async () => {
    jest.spyOn(fileExists, 'fileExists').mockResolvedValue(false);
    const handlebarsCompileMock = jest.spyOn(_handlebars.default, 'compile').mockImplementationOnce(() => () => '<h1>Hello World Compiled</h1>');
    readFileMock.mockResolvedValueOnce('{}').mockResolvedValueOnce(htmlTemplate);
    mkdirMock.mockResolvedValue(undefined);
    readdirMock.mockResolvedValue([]);
    await (0, _report.generateReport)(logger, 'ios');
    expect(readdirMock).not.toHaveBeenCalled();
    expect(readdirMock).not.toHaveBeenCalled();
    expect(handlebarsCompileMock).toHaveBeenCalledTimes(0);
    expect(writeFileMock).not.toHaveBeenCalled();
  });
});
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