[JS] move code sample to use mocha

Author: harsha509

examples/javascript/test/bidirectional/w3c/log.js

@@ -0,0 +1,157 @@
+
+const assert = require("assert");
+const firefox = require('selenium-webdriver/firefox');
+const {until, Builder} = require("selenium-webdriver");
+
+let driver
+
+beforeEach(async function () {
+  driver = new Builder()
+    .setFirefoxOptions(new firefox.Options().enableBidi())
+    .build()
+})
+
+afterEach(async function () {
+  await driver.quit()
+})
+
+function delay(ms) {
+  return new Promise((resolve) => setTimeout(resolve, ms))
+}
+
+describe('BiDi Logging', function () {
+  it('can listen to console log', async function () {
+    let log = null
+    const handler = await driver.script().addConsoleMessageHandler((logEntry) => {
+      log = logEntry
+    })
+
+    await driver.get('https://www.selenium.dev/selenium/web/bidi/logEntryAdded.html')
+    await driver.findElement({ id: 'consoleLog' }).click()
+
+    await delay(3000)
+
+    assert.equal(log.text, 'Hello, world!')
+    await driver.script().removeConsoleMessageHandler(handler)
+  })
+
+  it('can remove console log handler', async function () {
+    let log = null
+    const handler = await driver.script().addConsoleMessageHandler((logEntry) => {
+      log = logEntry
+    })
+
+    await driver.script().removeConsoleMessageHandler(handler)
+
+    await driver.get('https://www.selenium.dev/selenium/web/bidi/logEntryAdded.html')
+    await driver.findElement({ id: 'consoleLog' }).click()
+
+    await delay(3000)
+
+    assert.equal(log, null)
+  })
+
+  it('can listen to javascript error', async function () {
+    let log = null
+    const handler = await driver.script().addJavaScriptErrorHandler((logEntry) => {
+      log = logEntry
+    })
+
+    await driver.get('https://www.selenium.dev/selenium/web/bidi/logEntryAdded.html')
+    await driver.findElement({ id: 'jsException' }).click()
+
+    await delay(3000)
+
+    assert.equal(log.text, 'Error: Not working')
+    assert.equal(log.type, 'javascript')
+    assert.equal(log.level, 'error')
+
+    await driver.script().removeJavaScriptErrorHandler(handler)
+  })
+
+  it('can remove to javascript error handler', async function () {
+    let log = null
+    const handler = await driver.script().addJavaScriptErrorHandler((logEntry) => {
+      log = logEntry
+    })
+
+    await driver.script().removeJavaScriptErrorHandler(handler)
+
+    await driver.get('https://www.selenium.dev/selenium/web/bidi/logEntryAdded.html')
+    await driver.findElement({ id: 'jsException' }).click()
+
+    await delay(3000)
+
+    assert.equal(log, null)
+  })
+
+  it('can listen to dom mutations', async function () {
+    let message = null
+    await driver.script().addDomMutationHandler((m) => {
+      message = m
+    })
+
+    await driver.get('https://www.selenium.dev/selenium/web/dynamic')
+
+    let element = driver.findElement({ id: 'reveal' })
+    await element.click()
+    let revealed = driver.findElement({ id: 'revealed' })
+    await driver.wait(until.elementIsVisible(revealed), 5000)
+
+    assert.strictEqual(message['attribute_name'], 'style')
+    assert.strictEqual(message['current_value'], '')
+    assert.strictEqual(message['old_value'], 'display:none;')
+  })
+
+  it('can remove to dom mutation handler', async function () {
+    let message = null
+    let id = await driver.script().addDomMutationHandler((m) => {
+      message = m
+    })
+
+    await driver.script().removeDomMutationHandler(id)
+
+    await driver.get('https://www.selenium.dev/selenium/web/dynamic')
+
+    let element = driver.findElement({ id: 'reveal' })
+    await element.click()
+    let revealed = driver.findElement({ id: 'revealed' })
+    await driver.wait(until.elementIsVisible(revealed), 5000)
+
+    assert.strictEqual(message, null)
+  })
+
+  it('can pin script', async function () {
+    await driver.script().pin("() => { console.log('Hello!'); }")
+    let log
+
+    await driver.script().addConsoleMessageHandler((logEntry) => {
+      log = logEntry
+    })
+
+    await driver.get('https://www.selenium.dev/selenium/web/bidi/logEntryAdded.html')
+
+    await delay(3000)
+
+    assert.equal(log.text, 'Hello!')
+  })
+
+  it('can unpin script', async function () {
+    const id = await driver.script().pin("() => { console.log('Hello!'); }")
+
+    let count = 0
+    await driver.script().addConsoleMessageHandler((logEntry) => {
+      count++
+    })
+
+    await driver.get('https://www.selenium.dev/selenium/web/bidi/logEntryAdded.html')
+
+    await driver.script().unpin(id)
+
+    await driver.get('https://www.selenium.dev/selenium/web/bidi/logEntryAdded.html')
+
+    assert.equal(count, 1)
+  })
+})
+
+