Log

This section contains the APIs related to logging.

Console logs

Listen to the console.log events and register callbacks to process the event.

Selenium v4.8

    public void jsErrors() {
        CopyOnWriteArrayList<ConsoleLogEntry> logs = new CopyOnWriteArrayList<>();

        try (LogInspector logInspector = new LogInspector(driver)) {
            logInspector.onConsoleEntry(logs::add);
        }

        driver.get("https://www.selenium.dev/selenium/web/bidi/logEntryAdded.html");
    const inspector = await LogInspector(driver)
    await inspector.onConsoleEntry(function (log) {
      logEntry = log
    })

    await driver.get('https://www.selenium.dev/selenium/web/bidi/logEntryAdded.html')
    await driver.findElement({id: 'consoleLog'}).click()

    assert.equal(logEntry.text, 'Hello, world!')
    assert.equal(logEntry.realm, null)
    assert.equal(logEntry.type, 'console')
    assert.equal(logEntry.level, 'info')
    assert.equal(logEntry.method, 'log')
    assert.equal(logEntry.stackTrace, null)
    assert.equal(logEntry.args.length, 1)

JavaScript exceptions

Listen to the JS Exceptions and register callbacks to process the exception details.

            logInspector.onJavaScriptLog(future::complete);

            driver.get("https://www.selenium.dev/selenium/web/bidi/logEntryAdded.html");
            driver.findElement(By.id("jsException")).click();

            JavascriptLogEntry logEntry = future.get(5, TimeUnit.SECONDS);

            Assertions.assertEquals("Error: Not working", logEntry.getText());
    const inspector = await LogInspector(driver)
    await inspector.onJavascriptException(function (log) {
      logEntry = log
    })

    await driver.get('https://www.selenium.dev/selenium/web/bidi/logEntryAdded.html')
    await driver.findElement({id: 'jsException'}).click()

    assert.equal(logEntry.text, 'Error: Not working')
    assert.equal(logEntry.type, 'javascript')
    assert.equal(logEntry.level, 'error')

Listen to JS Logs

Listen to all JS logs at all levels and register callbacks to process the log.

Selenium v4.8

            driver.findElement(By.id("consoleLog")).click();

            ConsoleLogEntry logEntry = future.get(5, TimeUnit.SECONDS);

            Assertions.assertEquals("Hello, world!", logEntry.getText());

            Assertions.assertEquals(1, logEntry.getArgs().size());
            Assertions.assertEquals("console", logEntry.getType());
Last modified July 10, 2024: Release 4.22 Updates (#1765) (fa7b1165ed)