mirror of
https://github.com/facebook/react.git
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72ba8db504
* Added an automated test that would have caught the recent error code transform bug * Renamed dev-expression-with-codes test to replace-invariant-error-codes * Formatting nit
106 lines
3.2 KiB
JavaScript
106 lines
3.2 KiB
JavaScript
/**
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* Copyright (c) 2013-present, Facebook, Inc.
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*
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* This source code is licensed under the MIT license found in the
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* LICENSE file in the root directory of this source tree.
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*/
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/* eslint-disable quotes */
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'use strict';
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let babel = require('babel-core');
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let devExpressionWithCodes = require('../replace-invariant-error-codes');
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function transform(input) {
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return babel.transform(input, {
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plugins: [devExpressionWithCodes],
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}).code;
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}
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function compare(input, output) {
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var compiled = transform(input);
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expect(compiled).toEqual(output);
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}
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var oldEnv;
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describe('dev-expression', () => {
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beforeEach(() => {
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oldEnv = process.env.NODE_ENV;
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process.env.NODE_ENV = '';
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});
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afterEach(() => {
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process.env.NODE_ENV = oldEnv;
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});
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it("should add `reactProdInvariant` when it finds `require('invariant')`", () => {
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compare(
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"var invariant = require('invariant');",
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`var _prodInvariant = require('shared/reactProdInvariant');
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var invariant = require('invariant');`
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);
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});
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it('should replace simple invariant calls', () => {
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compare(
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"invariant(condition, 'Do not override existing functions.');",
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"var _prodInvariant = require('shared/reactProdInvariant');\n\n" +
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'!condition ? ' +
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'__DEV__ ? ' +
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"invariant(false, 'Do not override existing functions.') : " +
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`_prodInvariant('16') : void 0;`
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);
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});
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it('should only add `reactProdInvariant` once', () => {
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var expectedInvariantTransformResult =
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'!condition ? ' +
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'__DEV__ ? ' +
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"invariant(false, 'Do not override existing functions.') : " +
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`_prodInvariant('16') : void 0;`;
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compare(
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`var invariant = require('invariant');
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invariant(condition, 'Do not override existing functions.');
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invariant(condition, 'Do not override existing functions.');`,
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`var _prodInvariant = require('shared/reactProdInvariant');
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var invariant = require('invariant');
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${expectedInvariantTransformResult}
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${expectedInvariantTransformResult}`
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);
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});
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it('should support invariant calls with args', () => {
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compare(
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"invariant(condition, 'Expected %s target to be an array; got %s', 'foo', 'bar');",
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"var _prodInvariant = require('shared/reactProdInvariant');\n\n" +
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'!condition ? ' +
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'__DEV__ ? ' +
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"invariant(false, 'Expected %s target to be an array; got %s', 'foo', 'bar') : " +
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`_prodInvariant('7', 'foo', 'bar') : void 0;`
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);
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});
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it('should support invariant calls with a concatenated template string and args', () => {
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compare(
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"invariant(condition, 'Expected a component class, ' + 'got %s.' + '%s', 'Foo', 'Bar');",
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"var _prodInvariant = require('shared/reactProdInvariant');\n\n" +
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'!condition ? ' +
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'__DEV__ ? ' +
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"invariant(false, 'Expected a component class, got %s.%s', 'Foo', 'Bar') : " +
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`_prodInvariant('18', 'Foo', 'Bar') : void 0;`
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);
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});
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it('should correctly transform invariants that are not in the error codes map', () => {
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compare(
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"invariant(condition, 'This is not a real error message.');",
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`var _prodInvariant = require('shared/reactProdInvariant');
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!condition ? invariant(false, 'This is not a real error message.') : void 0;`
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);
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});
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});
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