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const express = require('express');
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const lanthan = require('lanthan');
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const path = require('path');
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const assert = require('assert');
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const Key = lanthan.Key;
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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 firefox;
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let session;
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let body;
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before(async() => {
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http = newApp().listen(port);
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firefox = await lanthan.firefox();
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await firefox.session.installAddon(path.join(__dirname, '..'));
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session = firefox.session;
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});
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after(async() => {
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if (firefox) {
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await firefox.close();
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}
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http.close();
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});
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beforeEach(async() => {
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await session.navigateTo(`http://127.0.0.1:${port}`);
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body = await session.findElementByCSS('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 session.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 session.executeScript(() => window.scrollTo(0, 200));
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await body.sendKeys('k');
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let pageYOffset = await session.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 session.executeScript(() => window.scrollTo(100, 100));
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await body.sendKeys('h');
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let pageXOffset = await session.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 session.executeScript(() => window.scrollTo(100, 100));
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await body.sendKeys('l');
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let pageXOffset = await session.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 session.executeScript(() => window.scrollTo(0, 100));
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await body.sendKeys('g', 'g');
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let pageYOffset = await session.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 session.executeScript(() => window.scrollTo(0, 100));
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await body.sendKeys(Key.Shift, 'g');
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let pageYOffset = await session.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 session.executeScript(() => window.scrollTo(0, 100));
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await body.sendKeys(Key.Shift, '0');
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let pageXOffset = await session.executeScript(() => window.pageXOffset);
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assert(pageXOffset === 0);
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});
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it('scrolls bottom by $', async () => {
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await session.executeScript(() => window.scrollTo(0, 100));
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await body.sendKeys(Key.Shift, '$');
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let pageXOffset = await session.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 session.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 session.executeScript(() => window.document.documentElement.clientHeight);
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let pageYOffset = await session.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 session.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 session.executeScript(() => window.document.documentElement.clientHeight);
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let pageYOffset = await session.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 session.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 session.executeScript(() => window.document.documentElement.clientHeight);
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let pageYOffset = await session.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 session.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 session.executeScript(() => window.document.documentElement.clientHeight);
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let pageYOffset = await session.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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