mirror of
https://git.sr.ht/~cadence/bibliogram
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119 lines
3.5 KiB
JavaScript
119 lines
3.5 KiB
JavaScript
const tap = require("tap")
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const se = require("selenium-webdriver")
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const firefox = require("selenium-webdriver/firefox")
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const fs = require("fs").promises
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const Jimp = require("jimp")
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const commands = require("./screenshots/commands")
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const child_process = require("child_process")
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const constants = require("../src/lib/constants")
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const browser = "firefox"
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const port = 10407 + (+process.env.TAP_CHILD_ID)
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constants.port = port
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constants.request_backend = "saved" // predictable request results
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const origin = `http://localhost:${port}`
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constants.website_origin = origin
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const dimensions = new Map([
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["firefox", {
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scrollbar: 12,
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heightDifference: 74,
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widthDifference: 0
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}],
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["chrome", {
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scrollbar: 15,
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heightDifference: 128,
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widthDifference: 8
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}]
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])
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const browserDimensions = dimensions.get(browser)
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process.chdir("src/site")
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const server = require("../src/site/server")
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function exec(command) {
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return new Promise((resolve, reject) => {
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child_process.exec(command, (error, stdout, stderr) => {
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resolve({stdout, stderr})
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})
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})
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}
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;(async () => {
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await fs.mkdir("../../test/screenshots/diff", {recursive: true})
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await fs.mkdir("../../test/screenshots/staging", {recursive: true})
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const options = new firefox.Options()
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// options.addArguments("-headless")
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const [driver] = await Promise.all([
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new se.Builder().forBrowser(browser).setFirefoxOptions(options).build(),
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server.waitForFirstCompile()
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])
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server.muteLogsStartingWith("/") // we don't need webserver stuff in our test logs
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function setSize(size) {
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return driver.manage().window().setRect({
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width: size.width + browserDimensions.widthDifference + browserDimensions.scrollbar,
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height: size.height + browserDimensions.heightDifference
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})
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}
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await driver.get(origin)
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for (const command of commands) {
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await Promise.all(Object.keys(command.cookies).map(cookieName =>
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driver.manage().addCookie({
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name: cookieName,
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value: command.cookies[cookieName]
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})
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))
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await setSize(command.size) // complete this before driver.get so that srcset doesn't get confused
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await driver.get(origin + command.url)
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for (let scrollNumber = 1; scrollNumber <= command.scrolls; scrollNumber++) {
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const filenameWithScroll = `${command.filename}-${scrollNumber}`
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function screenPath(dir) {
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return `../../test/screenshots/${dir}/${filenameWithScroll}.png`
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}
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if (scrollNumber > 1) {
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await driver.executeScript(`window.scrollByPages(1)`)
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}
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const finalExists = await fs.access(screenPath("final")).then(() => true).catch(() => false)
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const screenshot = Buffer.from(await driver.takeScreenshot(), "base64")
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const message = `equal screens: ${filenameWithScroll}`
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tap.test(message, async childTest => {
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const image = await Jimp.read(screenshot)
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image.crop(0, 0, command.size.width, command.size.height) // crop out page scrollbar
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if (finalExists) {
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await image.writeAsync(screenPath("staging"))
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const message = `screen: ${filenameWithScroll}`
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const result = await exec(`compare -metric AE ${screenPath("staging")} ${screenPath("final")} ${screenPath("diff")}`)
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const diff = +result.stderr
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childTest.ok(diff === 0, message)
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if (diff === 0) { // it worked, so we don't need the files anymore
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fs.unlink(screenPath("staging"))
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fs.unlink(screenPath("diff"))
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}
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} else {
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image.writeAsync(screenPath("final"))
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console.log(`note: creating new screenshot ${filenameWithScroll}`)
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}
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})
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}
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}
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tap.teardown(() => {
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driver.close()
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server.shutdown()
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})
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})()
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