react-native/Libraries/Core/__tests__/ReactNativeVersionCheck-tes...

136 lines
3.7 KiB
JavaScript

/**
* Copyright (c) 2017-present, Facebook, Inc.
*
* This source code is licensed under the MIT license found in the
* LICENSE file in the root directory of this source tree.
*
* @format
* @emails oncall+react_native
*/
'use strict';
describe('checkVersion', () => {
describe('in development', () => {
_setDevelopmentModeForTests(true);
_defineCheckVersionTests();
});
describe('in production', () => {
_setDevelopmentModeForTests(false);
_defineCheckVersionTests();
});
});
function _setDevelopmentModeForTests(dev) {
let originalDev;
beforeAll(() => {
originalDev = global.__DEV__;
global.__DEV__ = dev;
});
afterAll(() => {
global.__DEV__ = originalDev;
});
}
function _defineCheckVersionTests() {
const consoleError = console.error;
const globalConsole = global.console;
let spyOnConsoleError;
let consoleOutput;
beforeEach(() => {
consoleOutput = '';
console.error = jest.fn();
global.console = {error: jest.fn(error => (consoleOutput += error))};
spyOnConsoleError = jest.spyOn(global.console, 'error');
});
afterEach(() => {
jest.resetModules();
console.error = consoleError;
global.console = globalConsole;
spyOnConsoleError.mockReset();
});
it('passes when all the versions are zero', () => {
_mockJsVersion(0, 0, 0);
_mockNativeVersion(0, 0, 0);
const ReactNativeVersion = require('ReactNativeVersion');
const ReactNativeVersionCheck = require('ReactNativeVersionCheck');
expect(ReactNativeVersion).toMatchObject({
version: {major: 0, minor: 0, patch: 0, prerelease: null},
});
expect(() => ReactNativeVersionCheck.checkVersions()).not.toThrow();
});
it('passes when the minor matches when the major is zero', () => {
_mockJsVersion(0, 1, 0);
_mockNativeVersion(0, 1, 0);
const ReactNativeVersionCheck = require('ReactNativeVersionCheck');
expect(() => ReactNativeVersionCheck.checkVersions()).not.toThrow();
});
it("logs error when the minor doesn't match when the major is zero", () => {
_mockJsVersion(0, 1, 0);
_mockNativeVersion(0, 2, 0);
const ReactNativeVersionCheck = require('ReactNativeVersionCheck');
ReactNativeVersionCheck.checkVersions();
expect(spyOnConsoleError).toHaveBeenCalledTimes(1);
expect(consoleOutput).toMatch(/React Native version mismatch/);
});
it("logs error when the major doesn't match", () => {
_mockJsVersion(1, 0, 0);
_mockNativeVersion(2, 0, 0);
const ReactNativeVersionCheck = require('ReactNativeVersionCheck');
ReactNativeVersionCheck.checkVersions();
expect(spyOnConsoleError).toHaveBeenCalledTimes(1);
expect(consoleOutput).toMatch(/React Native version mismatch/);
});
it("doesn't log error if the patch doesn't match", () => {
_mockJsVersion(0, 1, 0);
_mockNativeVersion(0, 1, 2);
const ReactNativeVersionCheck = require('ReactNativeVersionCheck');
ReactNativeVersionCheck.checkVersions();
expect(spyOnConsoleError).toHaveBeenCalledTimes(0);
});
it("doesn't log error if the prerelease doesn't match", () => {
_mockJsVersion(0, 1, 0, 'beta.0');
_mockNativeVersion(0, 1, 0, 'alpha.1');
const ReactNativeVersionCheck = require('ReactNativeVersionCheck');
ReactNativeVersionCheck.checkVersions();
expect(spyOnConsoleError).toHaveBeenCalledTimes(0);
});
}
function _mockJsVersion(major = 0, minor = 0, patch = 0, prerelease = null) {
jest.doMock('ReactNativeVersion', () => ({
version: {major, minor, patch, prerelease},
}));
}
function _mockNativeVersion(
major = 0,
minor = 0,
patch = 0,
prerelease = null,
) {
jest.doMock('NativeModules', () => ({
PlatformConstants: {
reactNativeVersion: {major, minor, patch, prerelease},
},
}));
}