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

Visual regression testing for React Native

"use strict";

var _execa = _interopRequireDefault(require("execa"));
var _path = _interopRequireDefault(require("path"));
var _fs = require("fs");
var _screenshot = require("./screenshot.js");
var fileExistsHelpers = _interopRequireWildcard(require("./utils/file-exists.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 }; }
const SCREENSHOT_FILENAME = 'screen';
describe('screenshot.ts', () => {
  const commandMock = jest.spyOn(_execa.default, 'command');
  const mkdirMock = jest.spyOn(_fs.promises, 'mkdir').mockImplementation();
  const writeFileMock = jest.spyOn(_fs.promises, 'writeFile').mockImplementation();
  const cwdMock = jest.spyOn(process, 'cwd').mockReturnValue('/Users/johndoe/Projects/my-project');
  beforeAll(() => {
    delete process.env.OWL_PLATFORM;
    delete process.env.OWL_DEBUG;
    delete process.env.OWL_IOS_SIMULATOR;
  });
  beforeEach(() => {
    commandMock.mockReset();
    mkdirMock.mockReset();
    writeFileMock.mockReset();
  });
  afterAll(() => {
    cwdMock.mockRestore();
  });
  describe('Baseline', () => {
    beforeAll(() => {
      process.env.OWL_UPDATE_BASELINE = 'true';
      process.env.OWL_IOS_SIMULATOR = undefined;
    });
    describe('iOS', () => {
      beforeAll(() => {
        process.env.OWL_PLATFORM = 'ios';
        process.env.OWL_DEBUG = 'false';
        process.env.OWL_IOS_SIMULATOR = 'iPhone Simulator';
      });
      it('should take a screenshot', async () => {
        await (0, _screenshot.takeScreenshot)(SCREENSHOT_FILENAME);
        expect(commandMock).toHaveBeenCalledWith('xcrun simctl io iPhone\\ Simulator screenshot screen.png', {
          cwd: _path.default.join(process.cwd(), '.owl', 'baseline', 'ios'),
          shell: false,
          stdio: 'ignore'
        });
        expect(mkdirMock).toHaveBeenNthCalledWith(1, '/Users/johndoe/Projects/my-project/.owl', {
          recursive: true
        });
        expect(mkdirMock).toHaveBeenNthCalledWith(2, '/Users/johndoe/Projects/my-project/.owl/baseline/ios', {
          recursive: true
        });
      });
    });
    describe('Android', () => {
      beforeAll(() => {
        process.env.OWL_PLATFORM = 'android';
        process.env.OWL_DEBUG = 'false';
      });
      it('should take a screenshot', async () => {
        await (0, _screenshot.takeScreenshot)(SCREENSHOT_FILENAME);
        expect(commandMock).toHaveBeenCalledWith('adb exec-out screencap -p > screen.png', {
          cwd: _path.default.join(process.cwd(), '.owl', 'baseline', 'android'),
          shell: true,
          stdio: 'ignore'
        });
        expect(mkdirMock).toHaveBeenNthCalledWith(1, '/Users/johndoe/Projects/my-project/.owl', {
          recursive: true
        });
        expect(mkdirMock).toHaveBeenNthCalledWith(2, '/Users/johndoe/Projects/my-project/.owl/baseline/android', {
          recursive: true
        });
      });
    });
  });
  describe('Latest', () => {
    beforeAll(() => {
      process.env.OWL_UPDATE_BASELINE = 'false';
    });
    describe('iOS', () => {
      beforeAll(() => {
        process.env.OWL_PLATFORM = 'ios';
        process.env.OWL_DEBUG = 'false';
        process.env.OWL_IOS_SIMULATOR = 'iPhone Simulator';
      });
      it('should take a screenshot', async () => {
        jest.spyOn(fileExistsHelpers, 'fileExists').mockResolvedValueOnce(true).mockResolvedValueOnce(true);
        await (0, _screenshot.takeScreenshot)(SCREENSHOT_FILENAME);
        expect(commandMock).toHaveBeenCalledWith('xcrun simctl io iPhone\\ Simulator screenshot screen.png', {
          cwd: _path.default.join(process.cwd(), '.owl', 'latest', 'ios'),
          shell: false,
          stdio: 'ignore'
        });
      });
      it('should take a screenshot - baseline does not exist', async () => {
        await (0, _screenshot.takeScreenshot)(SCREENSHOT_FILENAME);
        expect(commandMock).toHaveBeenCalledWith('xcrun simctl io iPhone\\ Simulator screenshot screen.png', {
          cwd: _path.default.join(process.cwd(), '.owl', 'baseline', 'ios'),
          shell: false,
          stdio: 'ignore'
        });
      });
    });
    describe('Android', () => {
      beforeAll(() => {
        process.env.OWL_PLATFORM = 'android';
        process.env.OWL_DEBUG = 'false';
      });
      it('should take a screenshot', async () => {
        jest.spyOn(fileExistsHelpers, 'fileExists').mockResolvedValueOnce(true).mockResolvedValueOnce(true);
        await (0, _screenshot.takeScreenshot)(SCREENSHOT_FILENAME);
        expect(commandMock).toHaveBeenCalledWith('adb exec-out screencap -p > screen.png', {
          cwd: _path.default.join(process.cwd(), '.owl', 'latest', 'android'),
          shell: true,
          stdio: 'ignore'
        });
      });
      it('should take a screenshot - baseline does not exist', async () => {
        await (0, _screenshot.takeScreenshot)(SCREENSHOT_FILENAME);
        expect(commandMock).toHaveBeenCalledWith('adb exec-out screencap -p > screen.png', {
          cwd: _path.default.join(process.cwd(), '.owl', 'baseline', 'android'),
          shell: true,
          stdio: 'ignore'
        });
      });
    });
  });
});
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