e6725e15af
This patch introduces a tiny test runner to run puppeteer tests. The test runner is self-container and allows parallel (wrt IO) test execution. It will also allow us to split tests into multiple files if necessary. Comparing to the jasmine, the testrunner supports parallel execution, properly handles "unhandled promise rejection" event and signals. Comparing to ava/jest, the testrunner doesn't run multiple node processes, which makes it simpler but sufficient for our goals.
92 lines
4.0 KiB
JavaScript
92 lines
4.0 KiB
JavaScript
/**
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* Copyright 2017 Google Inc. All rights reserved.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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const transformAsyncFunctions = require('../TransformAsyncFunctions');
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const {TestRunner, Reporter, Matchers} = require('../../testrunner/');
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const runner = new TestRunner();
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new Reporter(runner);
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const {describe, xdescribe, fdescribe} = runner;
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const {it, fit, xit} = runner;
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const {beforeAll, beforeEach, afterAll, afterEach} = runner;
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const {expect} = new Matchers();
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describe('TransformAsyncFunctions', function() {
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it('should convert a function expression', function(done) {
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const input = `(async function(){ return 123 })()`;
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const output = eval(transformAsyncFunctions(input));
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expect(output instanceof Promise).toBe(true);
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output.then(result => expect(result).toBe(123)).then(done);
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});
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it('should convert an arrow function', function(done) {
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const input = `(async () => 123)()`;
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const output = eval(transformAsyncFunctions(input));
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expect(output instanceof Promise).toBe(true);
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output.then(result => expect(result).toBe(123)).then(done);
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});
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it('should convert an arrow function with curly braces', function(done) {
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const input = `(async () => { return 123 })()`;
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const output = eval(transformAsyncFunctions(input));
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expect(output instanceof Promise).toBe(true);
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output.then(result => expect(result).toBe(123)).then(done);
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});
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it('should convert a function declaration', function(done) {
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const input = `async function f(){ return 123; } f();`;
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const output = eval(transformAsyncFunctions(input));
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expect(output instanceof Promise).toBe(true);
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output.then(result => expect(result).toBe(123)).then(done);
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});
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it('should convert await', function(done) {
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const input = `async function f(){ return 23 + await Promise.resolve(100); } f();`;
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const output = eval(transformAsyncFunctions(input));
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expect(output instanceof Promise).toBe(true);
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output.then(result => expect(result).toBe(123)).then(done);
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});
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it('should convert method', function(done) {
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const input = `class X{async f() { return 123 }} (new X()).f();`;
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const output = eval(transformAsyncFunctions(input));
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expect(output instanceof Promise).toBe(true);
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output.then(result => expect(result).toBe(123)).then(done);
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});
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it('should pass arguments', function(done) {
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const input = `(async function(a, b){ return await a + await b })(Promise.resolve(100), 23)`;
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const output = eval(transformAsyncFunctions(input));
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expect(output instanceof Promise).toBe(true);
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output.then(result => expect(result).toBe(123)).then(done);
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});
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it('should still work across eval', function(done) {
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const input = `var str = (async function(){ return 123; }).toString(); eval('(' + str + ')')();`;
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const output = eval(transformAsyncFunctions(input));
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expect(output instanceof Promise).toBe(true);
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output.then(result => expect(result).toBe(123)).then(done);
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});
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it('should work with double await', function(done) {
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const input = `async function f(){ return 23 + await Promise.resolve(50 + await Promise.resolve(50)); } f();`;
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const output = eval(transformAsyncFunctions(input));
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expect(output instanceof Promise).toBe(true);
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output.then(result => expect(result).toBe(123)).then(done);
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});
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it('should work paren around arrow function', function(done) {
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const input = `(async x => ( 123))()`;
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const output = eval(transformAsyncFunctions(input));
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expect(output instanceof Promise).toBe(true);
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output.then(result => expect(result).toBe(123)).then(done);
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});
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});
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runner.run();
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