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const express = require('express');
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const path = require('path');
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const assert = require('assert');
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const { Builder } = require('lanthan');
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const { Key, By } = require('selenium-webdriver');
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const newApp = () => {
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let app = express();
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app.get('/', (req, res) => {
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res.send(`<!DOCTYPEhtml>
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<html lang="en">
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<body style="width:10000px; height:10000px"></body>
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</html">`);
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});
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return app;
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};
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describe("scroll test", () => {
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const port = 12321;
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let http;
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let lanthan;
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let webdriver;
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let body;
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before(async() => {
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http = newApp().listen(port);
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lanthan = await Builder
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.forBrowser('firefox')
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.spyAddon(path.join(__dirname, '..'))
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.build();
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webdriver = lanthan.getWebDriver();
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});
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after(async() => {
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if (lanthan) {
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await lanthan.quit();
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}
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if (http) {
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http.close();
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}
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});
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beforeEach(async() => {
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await webdriver.navigate().to(`http://127.0.0.1:${port}`);
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body = await webdriver.findElement(By.css('body'));
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});
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it('scrolls up by k', async () => {
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await body.sendKeys('j');
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let pageYOffset = await webdriver.executeScript(() => window.pageYOffset);
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assert.equal(pageYOffset, 64);
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});
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it('scrolls down by j', async () => {
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await webdriver.executeScript(() => window.scrollTo(0, 200));
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await body.sendKeys('k');
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let pageYOffset = await webdriver.executeScript(() => window.pageYOffset);
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assert.equal(pageYOffset, 136);
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});
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it('scrolls left by h', async () => {
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await webdriver.executeScript(() => window.scrollTo(100, 100));
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await body.sendKeys('h');
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let pageXOffset = await webdriver.executeScript(() => window.pageXOffset);
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assert.equal(pageXOffset, 36);
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});
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it('scrolls left by l', async () => {
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await webdriver.executeScript(() => window.scrollTo(100, 100));
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await body.sendKeys('l');
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let pageXOffset = await webdriver.executeScript(() => window.pageXOffset);
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assert.equal(pageXOffset, 164);
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});
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it('scrolls top by gg', async () => {
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await webdriver.executeScript(() => window.scrollTo(0, 100));
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await body.sendKeys('g', 'g');
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let pageYOffset = await webdriver.executeScript(() => window.pageYOffset);
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assert.equal(pageYOffset, 0);
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});
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it('scrolls bottom by G', async () => {
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await webdriver.executeScript(() => window.scrollTo(0, 100));
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await body.sendKeys(Key.SHIFT, 'g');
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let pageYOffset = await webdriver.executeScript(() => window.pageYOffset);
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assert(pageYOffset > 5000);
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});
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it('scrolls bottom by 0', async () => {
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await webdriver.executeScript(() => window.scrollTo(0, 100));
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await body.sendKeys(Key.SHIFT, '0');
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let pageXOffset = await webdriver.executeScript(() => window.pageXOffset);
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assert(pageXOffset === 0);
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});
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it('scrolls bottom by $', async () => {
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await webdriver.executeScript(() => window.scrollTo(0, 100));
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await body.sendKeys(Key.SHIFT, '$');
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let pageXOffset = await webdriver.executeScript(() => window.pageXOffset);
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assert(pageXOffset > 5000);
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});
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it('scrolls bottom by <C-U>', async () => {
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await webdriver.executeScript(() => window.scrollTo(0, 1000));
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await body.sendKeys(Key.CONTROL, 'u');
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let pageHeight =
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await webdriver.executeScript(() => window.document.documentElement.clientHeight);
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let pageYOffset = await webdriver.executeScript(() => window.pageYOffset);
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assert(Math.abs(pageYOffset - (1000 - Math.floor(pageHeight / 2))) < 5);
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});
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it('scrolls bottom by <C-D>', async () => {
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await webdriver.executeScript(() => window.scrollTo(0, 1000));
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await body.sendKeys(Key.CONTROL, 'd');
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let pageHeight =
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await webdriver.executeScript(() => window.document.documentElement.clientHeight);
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let pageYOffset = await webdriver.executeScript(() => window.pageYOffset);
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assert(Math.abs(pageYOffset - (1000 + Math.floor(pageHeight / 2))) < 5);
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});
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it('scrolls bottom by <C-B>', async () => {
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await webdriver.executeScript(() => window.scrollTo(0, 1000));
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await body.sendKeys(Key.CONTROL, 'b');
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let pageHeight =
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await webdriver.executeScript(() => window.document.documentElement.clientHeight);
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let pageYOffset = await webdriver.executeScript(() => window.pageYOffset);
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assert(Math.abs(pageYOffset - (1000 - pageHeight)) < 5);
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});
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it('scrolls bottom by <C-F>', async () => {
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await webdriver.executeScript(() => window.scrollTo(0, 1000));
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await body.sendKeys(Key.CONTROL, 'f');
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let pageHeight =
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await webdriver.executeScript(() => window.document.documentElement.clientHeight);
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let pageYOffset = await webdriver.executeScript(() => window.pageYOffset);
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assert(Math.abs(pageYOffset - (1000 + pageHeight)) < 5);
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});
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});
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