test: Break 'page.spec.js' to smaller files (puppeteer#2218)

This patch breaks huge `page.spec.js` into a bunch of smaller files.

test/browser.spec.js

@@ -0,0 +1,75 @@
+/**
+ * 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.
+ */
+
+module.exports.addTests = function({testRunner, expect, defaultBrowserOptions, puppeteer}) {
+  const {describe, xdescribe, fdescribe} = testRunner;
+  const {it, fit, xit} = testRunner;
+  const {beforeAll, beforeEach, afterAll, afterEach} = testRunner;
+  const headless = defaultBrowserOptions.headless;
+
+  describe('Browser.version', function() {
+    it('should return whether we are in headless', async({browser}) => {
+      const version = await browser.version();
+      expect(version.length).toBeGreaterThan(0);
+      expect(version.startsWith('Headless')).toBe(headless);
+    });
+  });
+
+  describe('Browser.userAgent', function() {
+    it('should include WebKit', async({browser}) => {
+      const userAgent = await browser.userAgent();
+      expect(userAgent.length).toBeGreaterThan(0);
+      expect(userAgent).toContain('WebKit');
+    });
+  });
+
+  describe('Browser.process', function() {
+    it('should return child_process instance', async function({browser}) {
+      const process = await browser.process();
+      expect(process.pid).toBeGreaterThan(0);
+      const browserWSEndpoint = browser.wsEndpoint();
+      const remoteBrowser = await puppeteer.connect({browserWSEndpoint});
+      expect(remoteBrowser.process()).toBe(null);
+      await remoteBrowser.disconnect();
+    });
+  });
+
+  describe('Browser.Events.disconnected', function() {
+    it('should emitted when: browser gets closed, disconnected or underlying websocket gets closed', async() => {
+      const originalBrowser = await puppeteer.launch(defaultBrowserOptions);
+      const browserWSEndpoint = originalBrowser.wsEndpoint();
+      const remoteBrowser1 = await puppeteer.connect({browserWSEndpoint});
+      const remoteBrowser2 = await puppeteer.connect({browserWSEndpoint});
+
+      let disconnectedOriginal = 0;
+      let disconnectedRemote1 = 0;
+      let disconnectedRemote2 = 0;
+      originalBrowser.on('disconnected', () => ++disconnectedOriginal);
+      remoteBrowser1.on('disconnected', () => ++disconnectedRemote1);
+      remoteBrowser2.on('disconnected', () => ++disconnectedRemote2);
+
+      await remoteBrowser2.disconnect();
+      expect(disconnectedOriginal).toBe(0);
+      expect(disconnectedRemote1).toBe(0);
+      expect(disconnectedRemote2).toBe(1);
+
+      await originalBrowser.close();
+      expect(disconnectedOriginal).toBe(1);
+      expect(disconnectedRemote1).toBe(1);
+      expect(disconnectedRemote2).toBe(1);
+    });
+  });
+};

test/elementhandle.spec.js

@@ -0,0 +1,272 @@
+/**
+ * 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.
+ */
+
+const utils = require('./utils');
+
+module.exports.addTests = function({testRunner, expect}) {
+  const {describe, xdescribe, fdescribe} = testRunner;
+  const {it, fit, xit} = testRunner;
+  const {beforeAll, beforeEach, afterAll, afterEach} = testRunner;
+
+  describe('ElementHandle.boundingBox', function() {
+    it('should work', async({page, server}) => {
+      await page.setViewport({width: 500, height: 500});
+      await page.goto(server.PREFIX + '/grid.html');
+      const elementHandle = await page.$('.box:nth-of-type(13)');
+      const box = await elementHandle.boundingBox();
+      expect(box).toEqual({ x: 100, y: 50, width: 50, height: 50 });
+    });
+    it('should handle nested frames', async({page, server}) => {
+      await page.setViewport({width: 500, height: 500});
+      await page.goto(server.PREFIX + '/frames/nested-frames.html');
+      const nestedFrame = page.frames()[1].childFrames()[1];
+      const elementHandle = await nestedFrame.$('div');
+      const box = await elementHandle.boundingBox();
+      expect(box).toEqual({ x: 28, y: 260, width: 264, height: 18 });
+    });
+    it('should return null for invisible elements', async({page, server}) => {
+      await page.setContent('<div style="display:none">hi</div>');
+      const element = await page.$('div');
+      expect(await element.boundingBox()).toBe(null);
+    });
+    it('should force a layout', async({page, server}) => {
+      await page.setViewport({ width: 500, height: 500 });
+      await page.setContent('<div style="width: 100px; height: 100px">hello</div>');
+      const elementHandle = await page.$('div');
+      await page.evaluate(element => element.style.height = '200px', elementHandle);
+      const box = await elementHandle.boundingBox();
+      expect(box).toEqual({ x: 8, y: 8, width: 100, height: 200 });
+    });
+  });
+
+  describe('ElementHandle.contentFrame', function() {
+    it('should work', async({page,server}) => {
+      await page.goto(server.EMPTY_PAGE);
+      await utils.attachFrame(page, 'frame1', server.EMPTY_PAGE);
+      const elementHandle = await page.$('#frame1');
+      const frame = await elementHandle.contentFrame();
+      expect(frame).toBe(page.frames()[1]);
+    });
+  });
+
+  describe('ElementHandle.click', function() {
+    it('should work', async({page, server}) => {
+      await page.goto(server.PREFIX + '/input/button.html');
+      const button = await page.$('button');
+      await button.click();
+      expect(await page.evaluate(() => result)).toBe('Clicked');
+    });
+    it('should work for Shadow DOM v1', async({page, server}) => {
+      await page.goto(server.PREFIX + '/shadow.html');
+      const buttonHandle = await page.evaluateHandle(() => button);
+      await buttonHandle.click();
+      expect(await page.evaluate(() => clicked)).toBe(true);
+    });
+    it('should work for TextNodes', async({page, server}) => {
+      await page.goto(server.PREFIX + '/input/button.html');
+      const buttonTextNode = await page.evaluateHandle(() => document.querySelector('button').firstChild);
+      let error = null;
+      await buttonTextNode.click().catch(err => error = err);
+      expect(error.message).toBe('Node is not of type HTMLElement');
+    });
+    it('should throw for detached nodes', async({page, server}) => {
+      await page.goto(server.PREFIX + '/input/button.html');
+      const button = await page.$('button');
+      await page.evaluate(button => button.remove(), button);
+      let error = null;
+      await button.click().catch(err => error = err);
+      expect(error.message).toBe('Node is detached from document');
+    });
+    it('should throw for hidden nodes', async({page, server}) => {
+      await page.goto(server.PREFIX + '/input/button.html');
+      const button = await page.$('button');
+      await page.evaluate(button => button.style.display = 'none', button);
+      const error = await button.click().catch(err => err);
+      expect(error.message).toBe('Node is either not visible or not an HTMLElement');
+    });
+    it('should throw for recursively hidden nodes', async({page, server}) => {
+      await page.goto(server.PREFIX + '/input/button.html');
+      const button = await page.$('button');
+      await page.evaluate(button => button.parentElement.style.display = 'none', button);
+      const error = await button.click().catch(err => err);
+      expect(error.message).toBe('Node is either not visible or not an HTMLElement');
+    });
+    it('should throw for <br> elements', async({page, server}) => {
+      await page.setContent('hello<br>goodbye');
+      const br = await page.$('br');
+      const error = await br.click().catch(err => err);
+      expect(error.message).toBe('Node is either not visible or not an HTMLElement');
+    });
+  });
+
+  describe('ElementHandle.hover', function() {
+    it('should work', async({page, server}) => {
+      await page.goto(server.PREFIX + '/input/scrollable.html');
+      const button = await page.$('#button-6');
+      await button.hover();
+      expect(await page.evaluate(() => document.querySelector('button:hover').id)).toBe('button-6');
+    });
+  });
+
+  describe('ElementHandle.screenshot', function() {
+    it('should work', async({page, server}) => {
+      await page.setViewport({width: 500, height: 500});
+      await page.goto(server.PREFIX + '/grid.html');
+      await page.evaluate(() => window.scrollBy(50, 100));
+      const elementHandle = await page.$('.box:nth-of-type(3)');
+      const screenshot = await elementHandle.screenshot();
+      expect(screenshot).toBeGolden('screenshot-element-bounding-box.png');
+    });
+    it('should take into account padding and border', async({page, server}) => {
+      await page.setViewport({width: 500, height: 500});
+      await page.setContent(`
+        something above
+        <style>div {
+          border: 2px solid blue;
+          background: green;
+          width: 50px;
+          height: 50px;
+        }
+        </style>
+        <div></div>
+      `);
+      const elementHandle = await page.$('div');
+      const screenshot = await elementHandle.screenshot();
+      expect(screenshot).toBeGolden('screenshot-element-padding-border.png');
+    });
+    it('should capture full element when larger than viewport', async({page, server}) => {
+      await page.setViewport({width: 500, height: 500});
+
+      await page.setContent(`
+        something above
+        <style>
+        div.to-screenshot {
+          border: 1px solid blue;
+          width: 600px;
+          height: 600px;
+          margin-left: 50px;
+        }
+        </style>
+        <div class="to-screenshot"></div>
+      `);
+      const elementHandle = await page.$('div.to-screenshot');
+      const screenshot = await elementHandle.screenshot();
+      expect(screenshot).toBeGolden('screenshot-element-larger-than-viewport.png');
+
+      expect(await page.evaluate(() => ({ w: window.innerWidth, h: window.innerHeight }))).toEqual({ w: 500, h: 500 });
+    });
+    it('should scroll element into view', async({page, server}) => {
+      await page.setViewport({width: 500, height: 500});
+      await page.setContent(`
+        something above
+        <style>div.above {
+          border: 2px solid blue;
+          background: red;
+          height: 1500px;
+        }
+        div.to-screenshot {
+          border: 2px solid blue;
+          background: green;
+          width: 50px;
+          height: 50px;
+        }
+        </style>
+        <div class="above"></div>
+        <div class="to-screenshot"></div>
+      `);
+      const elementHandle = await page.$('div.to-screenshot');
+      const screenshot = await elementHandle.screenshot();
+      expect(screenshot).toBeGolden('screenshot-element-scrolled-into-view.png');
+    });
+    it('should work with a rotated element', async({page, server}) => {
+      await page.setViewport({width: 500, height: 500});
+      await page.setContent(`<div style="position:absolute;
+                                        top: 100px;
+                                        left: 100px;
+                                        width: 100px;
+                                        height: 100px;
+                                        background: green;
+                                        transform: rotateZ(200deg);">&nbsp;</div>`);
+      const elementHandle = await page.$('div');
+      const screenshot = await elementHandle.screenshot();
+      expect(screenshot).toBeGolden('screenshot-element-rotate.png');
+    });
+    it('should fail to screenshot a detached element', async({page, server}) => {
+      await page.setContent('<h1>remove this</h1>');
+      const elementHandle = await page.$('h1');
+      await page.evaluate(element => element.remove(), elementHandle);
+      const screenshotError = await elementHandle.screenshot().catch(error => error);
+      expect(screenshotError.message).toBe('Node is either not visible or not an HTMLElement');
+    });
+  });
+
+  describe('ElementHandle.$', function() {
+    it('should query existing element', async({page, server}) => {
+      await page.goto(server.PREFIX + '/playground.html');
+      await page.setContent('<html><body><div class="second"><div class="inner">A</div></div></body></html>');
+      const html = await page.$('html');
+      const second = await html.$('.second');
+      const inner = await second.$('.inner');
+      const content = await page.evaluate(e => e.textContent, inner);
+      expect(content).toBe('A');
+    });
+
+    it('should return null for non-existing element', async({page, server}) => {
+      await page.setContent('<html><body><div class="second"><div class="inner">B</div></div></body></html>');
+      const html = await page.$('html');
+      const second = await html.$('.third');
+      expect(second).toBe(null);
+    });
+  });
+
+  describe('ElementHandle.$$', function() {
+    it('should query existing elements', async({page, server}) => {
+      await page.setContent('<html><body><div>A</div><br/><div>B</div></body></html>');
+      const html = await page.$('html');
+      const elements = await html.$$('div');
+      expect(elements.length).toBe(2);
+      const promises = elements.map(element => page.evaluate(e => e.textContent, element));
+      expect(await Promise.all(promises)).toEqual(['A', 'B']);
+    });
+
+    it('should return empty array for non-existing elements', async({page, server}) => {
+      await page.setContent('<html><body><span>A</span><br/><span>B</span></body></html>');
+      const html = await page.$('html');
+      const elements = await html.$$('div');
+      expect(elements.length).toBe(0);
+    });
+  });
+
+
+  describe('ElementHandle.$x', function() {
+    it('should query existing element', async({page, server}) => {
+      await page.goto(server.PREFIX + '/playground.html');
+      await page.setContent('<html><body><div class="second"><div class="inner">A</div></div></body></html>');
+      const html = await page.$('html');
+      const second = await html.$x(`./body/div[contains(@class, 'second')]`);
+      const inner = await second[0].$x(`./div[contains(@class, 'inner')]`);
+      const content = await page.evaluate(e => e.textContent, inner[0]);
+      expect(content).toBe('A');
+    });
+
+    it('should return null for non-existing element', async({page, server}) => {
+      await page.setContent('<html><body><div class="second"><div class="inner">B</div></div></body></html>');
+      const html = await page.$('html');
+      const second = await html.$x(`/div[contains(@class, 'third')]`);
+      expect(second).toEqual([]);
+    });
+  });
+};