/
ReactNativeVersionCheck-test.js
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ReactNativeVersionCheck-test.js
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/**
* Copyright (c) 2017-present, Facebook, Inc.
* All rights reserved.
*
* This source code is licensed under the BSD-style license found in the
* LICENSE file in the root directory of this source tree. An additional grant
* of patent rights can be found in the PATENTS file in the same directory.
*
* @format
*/
'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() {
afterEach(() => {
jest.resetModules();
});
it('passes when all the versions are zero', () => {
jest.dontMock('ReactNativeVersion');
_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("throws when the minor doesn't match when the major is zero", () => {
_mockJsVersion(0, 1, 0);
_mockNativeVersion(0, 2, 0);
const ReactNativeVersionCheck = require('ReactNativeVersionCheck');
expect(() => ReactNativeVersionCheck.checkVersions()).toThrowError(
/React Native version mismatch/,
);
});
it("throws when the major doesn't match", () => {
_mockJsVersion(1, 0, 0);
_mockNativeVersion(2, 0, 0);
const ReactNativeVersionCheck = require('ReactNativeVersionCheck');
expect(() => ReactNativeVersionCheck.checkVersions()).toThrowError(
/React Native version mismatch/,
);
});
it("doesn't throw if the patch doesn't match", () => {
_mockJsVersion(0, 1, 0);
_mockNativeVersion(0, 1, 2);
const ReactNativeVersionCheck = require('ReactNativeVersionCheck');
expect(() => ReactNativeVersionCheck.checkVersions()).not.toThrow();
});
it("doesn't throw if the prerelease doesn't match", () => {
_mockJsVersion(0, 1, 0, 'beta.0');
_mockNativeVersion(0, 1, 0, 'alpha.1');
const ReactNativeVersionCheck = require('ReactNativeVersionCheck');
expect(() => ReactNativeVersionCheck.checkVersions()).not.toThrow();
});
}
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},
},
}));
}