@johnf/react-native-owl
Version:
Visual regression testing for React Native
76 lines (75 loc) • 2.42 kB
JavaScript
;
var _react = _interopRequireDefault(require("react"));
function _interopRequireDefault(e) { return e && e.__esModule ? e : { default: e }; }
describe('client.ts', () => {
jest.mock('react-native', () => ({
Platform: {
OS: 'android'
},
TurboModuleRegistry: {
get: jest.fn()
}
}));
afterEach(() => {
jest.restoreAllMocks();
});
const client = require('./client');
it('inits the client', () => {
const patchReact = jest.fn();
const waitForWebSocket = jest.fn();
jest.spyOn(client, 'patchReact').mockImplementation(patchReact);
jest.spyOn(client, 'waitForWebSocket').mockImplementation(waitForWebSocket);
client.initClient();
expect(patchReact).toHaveBeenCalled();
expect(waitForWebSocket).toHaveBeenCalled();
});
it('patches react', () => {
const createElement = jest.spyOn(_react.default, 'createElement').mockImplementation();
const applyElementTracking = jest.fn();
jest.spyOn(client, 'applyElementTracking').mockImplementation(applyElementTracking);
client.patchReact();
const props = {
testID: 'testID'
};
/*#__PURE__*/_react.default.createElement('View', props);
expect(createElement).toHaveBeenCalledTimes(1);
expect(applyElementTracking).toHaveBeenCalledWith(props);
});
describe('applyElementTracking', () => {
const add = jest.fn();
beforeEach(() => {
const trackedElements = require('./trackedElements');
add.mockReset();
jest.spyOn(trackedElements, 'add').mockImplementation(add);
});
it('tracks elements with a testID', () => {
const newProps = client.applyElementTracking({
testID: 'testID',
foo: 'bar'
});
expect(add).toHaveBeenCalledTimes(1);
expect(newProps).toEqual({
testID: 'testID',
foo: 'bar',
ref: {
current: null
},
showsHorizontalScrollIndicator: false,
showsVerticalScrollIndicator: false
});
});
it('does not track elements without a testID', () => {
const newProps = client.applyElementTracking({
testID: undefined,
foo: 'bar'
});
expect(add).toHaveBeenCalledTimes(0);
expect(newProps).toEqual({
foo: 'bar',
showsHorizontalScrollIndicator: false,
showsVerticalScrollIndicator: false
});
});
});
});
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