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Diffstat (limited to 'remote/test/puppeteer/test/src/jshandle.spec.ts')
-rw-r--r-- | remote/test/puppeteer/test/src/jshandle.spec.ts | 339 |
1 files changed, 339 insertions, 0 deletions
diff --git a/remote/test/puppeteer/test/src/jshandle.spec.ts b/remote/test/puppeteer/test/src/jshandle.spec.ts new file mode 100644 index 0000000000..3d307a0523 --- /dev/null +++ b/remote/test/puppeteer/test/src/jshandle.spec.ts @@ -0,0 +1,339 @@ +/** + * Copyright 2018 Google Inc. All rights reserved. + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +import expect from 'expect'; + +import { + getTestState, + setupTestBrowserHooks, + setupTestPageAndContextHooks, +} from './mocha-utils.js'; + +describe('JSHandle', function () { + setupTestBrowserHooks(); + setupTestPageAndContextHooks(); + + describe('Page.evaluateHandle', function () { + it('should work', async () => { + const {page} = getTestState(); + + const windowHandle = await page.evaluateHandle(() => { + return window; + }); + expect(windowHandle).toBeTruthy(); + }); + it('should return the RemoteObject', async () => { + const {page} = getTestState(); + + const windowHandle = await page.evaluateHandle(() => { + return window; + }); + expect(windowHandle.remoteObject()).toBeTruthy(); + }); + it('should accept object handle as an argument', async () => { + const {page} = getTestState(); + + const navigatorHandle = await page.evaluateHandle(() => { + return navigator; + }); + const text = await page.evaluate(e => { + return e.userAgent; + }, navigatorHandle); + expect(text).toContain('Mozilla'); + }); + it('should accept object handle to primitive types', async () => { + const {page} = getTestState(); + + const aHandle = await page.evaluateHandle(() => { + return 5; + }); + const isFive = await page.evaluate(e => { + return Object.is(e, 5); + }, aHandle); + expect(isFive).toBeTruthy(); + }); + it('should warn about recursive objects', async () => { + const {page} = getTestState(); + + const test: {obj?: unknown} = {}; + test.obj = test; + let error!: Error; + await page + .evaluateHandle(opts => { + return opts; + }, test) + .catch(error_ => { + return (error = error_); + }); + expect(error.message).toContain('Recursive objects are not allowed.'); + }); + it('should accept object handle to unserializable value', async () => { + const {page} = getTestState(); + + const aHandle = await page.evaluateHandle(() => { + return Infinity; + }); + expect( + await page.evaluate(e => { + return Object.is(e, Infinity); + }, aHandle) + ).toBe(true); + }); + it('should use the same JS wrappers', async () => { + const {page} = getTestState(); + + const aHandle = await page.evaluateHandle(() => { + (globalThis as any).FOO = 123; + return window; + }); + expect( + await page.evaluate(e => { + return (e as any).FOO; + }, aHandle) + ).toBe(123); + }); + }); + + describe('JSHandle.getProperty', function () { + it('should work', async () => { + const {page} = getTestState(); + + const aHandle = await page.evaluateHandle(() => { + return { + one: 1, + two: 2, + three: 3, + }; + }); + const twoHandle = await aHandle.getProperty('two'); + expect(await twoHandle.jsonValue()).toEqual(2); + }); + }); + + describe('JSHandle.jsonValue', function () { + it('should work', async () => { + const {page} = getTestState(); + + const aHandle = await page.evaluateHandle(() => { + return {foo: 'bar'}; + }); + const json = await aHandle.jsonValue(); + expect(json).toEqual({foo: 'bar'}); + }); + + it('works with jsonValues that are not objects', async () => { + const {page} = getTestState(); + + const aHandle = await page.evaluateHandle(() => { + return ['a', 'b']; + }); + const json = await aHandle.jsonValue(); + expect(json).toEqual(['a', 'b']); + }); + + it('works with jsonValues that are primitives', async () => { + const {page} = getTestState(); + + const aHandle = await page.evaluateHandle(() => { + return 'foo'; + }); + expect(await aHandle.jsonValue()).toEqual('foo'); + + const bHandle = await page.evaluateHandle(() => { + return undefined; + }); + expect(await bHandle.jsonValue()).toEqual(undefined); + }); + + it('should not work with dates', async () => { + const {page} = getTestState(); + + const dateHandle = await page.evaluateHandle(() => { + return new Date('2017-09-26T00:00:00.000Z'); + }); + const json = await dateHandle.jsonValue(); + expect(json).toEqual({}); + }); + it('should throw for circular objects', async () => { + const {page} = getTestState(); + + const handle = await page.evaluateHandle(() => { + const t: {t?: unknown; g: number} = {g: 1}; + t.t = t; + return t; + }); + let error!: Error; + await handle.jsonValue().catch(error_ => { + return (error = error_); + }); + expect(error.message).toContain('Could not serialize referenced object'); + }); + }); + + describe('JSHandle.getProperties', function () { + it('should work', async () => { + const {page} = getTestState(); + + const aHandle = await page.evaluateHandle(() => { + return { + foo: 'bar', + }; + }); + const properties = await aHandle.getProperties(); + const foo = properties.get('foo')!; + expect(foo).toBeTruthy(); + expect(await foo.jsonValue()).toBe('bar'); + }); + it('should return even non-own properties', async () => { + const {page} = getTestState(); + + const aHandle = await page.evaluateHandle(() => { + class A { + a: string; + constructor() { + this.a = '1'; + } + } + class B extends A { + b: string; + constructor() { + super(); + this.b = '2'; + } + } + return new B(); + }); + const properties = await aHandle.getProperties(); + expect(await properties.get('a')!.jsonValue()).toBe('1'); + expect(await properties.get('b')!.jsonValue()).toBe('2'); + }); + }); + + describe('JSHandle.asElement', function () { + it('should work', async () => { + const {page} = getTestState(); + + const aHandle = await page.evaluateHandle(() => { + return document.body; + }); + const element = aHandle.asElement(); + expect(element).toBeTruthy(); + }); + it('should return null for non-elements', async () => { + const {page} = getTestState(); + + const aHandle = await page.evaluateHandle(() => { + return 2; + }); + const element = aHandle.asElement(); + expect(element).toBeFalsy(); + }); + it('should return ElementHandle for TextNodes', async () => { + const {page} = getTestState(); + + await page.setContent('<div>ee!</div>'); + const aHandle = await page.evaluateHandle(() => { + return document.querySelector('div')!.firstChild; + }); + const element = aHandle.asElement(); + expect(element).toBeTruthy(); + expect( + await page.evaluate(e => { + return e?.nodeType === Node.TEXT_NODE; + }, element) + ); + }); + }); + + describe('JSHandle.toString', function () { + it('should work for primitives', async () => { + const {page} = getTestState(); + + const numberHandle = await page.evaluateHandle(() => { + return 2; + }); + expect(numberHandle.toString()).toBe('JSHandle:2'); + const stringHandle = await page.evaluateHandle(() => { + return 'a'; + }); + expect(stringHandle.toString()).toBe('JSHandle:a'); + }); + it('should work for complicated objects', async () => { + const {page} = getTestState(); + + const aHandle = await page.evaluateHandle(() => { + return window; + }); + expect(aHandle.toString()).toBe('JSHandle@object'); + }); + it('should work with different subtypes', async () => { + const {page} = getTestState(); + + expect((await page.evaluateHandle('(function(){})')).toString()).toBe( + 'JSHandle@function' + ); + expect((await page.evaluateHandle('12')).toString()).toBe('JSHandle:12'); + expect((await page.evaluateHandle('true')).toString()).toBe( + 'JSHandle:true' + ); + expect((await page.evaluateHandle('undefined')).toString()).toBe( + 'JSHandle:undefined' + ); + expect((await page.evaluateHandle('"foo"')).toString()).toBe( + 'JSHandle:foo' + ); + expect((await page.evaluateHandle('Symbol()')).toString()).toBe( + 'JSHandle@symbol' + ); + expect((await page.evaluateHandle('new Map()')).toString()).toBe( + 'JSHandle@map' + ); + expect((await page.evaluateHandle('new Set()')).toString()).toBe( + 'JSHandle@set' + ); + expect((await page.evaluateHandle('[]')).toString()).toBe( + 'JSHandle@array' + ); + expect((await page.evaluateHandle('null')).toString()).toBe( + 'JSHandle:null' + ); + expect((await page.evaluateHandle('/foo/')).toString()).toBe( + 'JSHandle@regexp' + ); + expect((await page.evaluateHandle('document.body')).toString()).toBe( + 'JSHandle@node' + ); + expect((await page.evaluateHandle('new Date()')).toString()).toBe( + 'JSHandle@date' + ); + expect((await page.evaluateHandle('new WeakMap()')).toString()).toBe( + 'JSHandle@weakmap' + ); + expect((await page.evaluateHandle('new WeakSet()')).toString()).toBe( + 'JSHandle@weakset' + ); + expect((await page.evaluateHandle('new Error()')).toString()).toBe( + 'JSHandle@error' + ); + expect((await page.evaluateHandle('new Int32Array()')).toString()).toBe( + 'JSHandle@typedarray' + ); + expect((await page.evaluateHandle('new Proxy({}, {})')).toString()).toBe( + 'JSHandle@proxy' + ); + }); + }); +}); |