[🐛 Bug]: NoAlertPresentException with Selenium Java 4.24.0 and Chrome under enableBiDi

[alaahong]

What happened?

If disable BiDi, both Chrome and Firefox are fine to trigger alert.
If enableBiDi, Selenium can't trigger the Alert in Chrome with Java 4.24.0 , but work with Firefox.
more detail can be refer to below code.

How can we reproduce the issue?

package cn.ianzhang;

import org.junit.jupiter.api.Assertions;
import org.junit.jupiter.api.Test;
import org.openqa.selenium.By;
import org.openqa.selenium.NoAlertPresentException;
import org.openqa.selenium.WebDriver;
import org.openqa.selenium.chrome.ChromeDriver;
import org.openqa.selenium.chrome.ChromeOptions;
import org.openqa.selenium.firefox.FirefoxDriver;
import org.openqa.selenium.firefox.FirefoxOptions;

public class AlertTest {
  @Test
  void noBidiChromeTest() {
    ChromeOptions options = new ChromeOptions();
    WebDriver driver = new ChromeDriver(options);
    try {
      driver.get("https://www.ianzhang.cn/s4ia/03-webdriver-advanced/interaction.html");
      driver.findElement(By.id("alert-btn")).click();
      Assertions.assertEquals(driver.switchTo().alert().getText(), "I am an alert");
    } finally {
      if (driver != null) driver.quit();
    }
  }


  @Test
  void bidiTest() {
    ChromeOptions options = new ChromeOptions();
    options.enableBiDi();
    WebDriver driver = new ChromeDriver(options);
    try {
      driver.get("https://www.ianzhang.cn/s4ia/03-webdriver-advanced/interaction.html");
      driver.findElement(By.id("alert-btn")).click();
      Assertions.assertThrows(NoAlertPresentException.class, () -> driver.switchTo().alert());
    } finally {
      if (driver != null) driver.quit();
    }
  }

  @Test
  void noBidiFirefoxTest() {
    FirefoxOptions options = new FirefoxOptions();
    WebDriver driver = new FirefoxDriver(options);
    try {
      driver.get("https://www.ianzhang.cn/s4ia/03-webdriver-advanced/interaction.html");
      driver.findElement(By.id("alert-btn")).click();
      Assertions.assertEquals(driver.switchTo().alert().getText(), "I am an alert");
    } finally {
      if (driver != null) driver.quit();
    }
  }

  @Test
  void bidiFirefoxTest() {
    FirefoxOptions options = new FirefoxOptions();
    options.enableBiDi();
    WebDriver driver = new FirefoxDriver(options);
    try {
      driver.get("https://www.ianzhang.cn/s4ia/03-webdriver-advanced/interaction.html");
      driver.findElement(By.id("alert-btn")).click();
      Assertions.assertEquals(driver.switchTo().alert().getText(), "I am an alert");
    } finally {
      if (driver != null) driver.quit();
    }
  }
}

Relevant log output

N/A

Operating System

Windows 11

Selenium version

Java 4.24.0

What are the browser(s) and version(s) where you see this issue?

Chrome 128.0.6613.114

What are the browser driver(s) and version(s) where you see this issue?

ChromeDriver 128.0.6613.86

Are you using Selenium Grid?

N/A

[github-actions]

@alaahong, thank you for creating this issue. We will troubleshoot it as soon as we can.

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Thank you!

[alaahong]

Just inspired by serenity-bdd/serenity-core#2470 (comment)
Seems the exception is from UnhandledPromptBehaviour, only INGORE will no exception for the alert test, and meanwhile ,the default behavior is DISMISS_AND_NOTIFY.

As this is the BiDi relatives, @pujagani , is the issue from Selenium or Chrome Driver? It's coming since enabledBiDi.

  @Test
  void bidiIgnoreTest() {
    ChromeOptions options = new ChromeOptions();
    options.enableBiDi();
    options.setUnhandledPromptBehaviour(UnexpectedAlertBehaviour.IGNORE);
    WebDriver driver = new ChromeDriver(options);
    try {
      driver.get("https://www.ianzhang.cn/s4ia/03-webdriver-advanced/interaction.html");
      driver.findElement(By.id("alert-btn")).click();
      Assertions.assertEquals(driver.switchTo().alert().getText(), "I am an alert");
    } finally {
      if (driver != null) driver.quit();
    }
  }

  @Test
  void bidiAcceptTest() {
    ChromeOptions options = new ChromeOptions();
    options.enableBiDi();
    options.setUnhandledPromptBehaviour(UnexpectedAlertBehaviour.ACCEPT);
    WebDriver driver = new ChromeDriver(options);
    try {
      driver.get("https://www.ianzhang.cn/s4ia/03-webdriver-advanced/interaction.html");
      driver.findElement(By.id("alert-btn")).click();
      Assertions.assertThrows(NoAlertPresentException.class, () -> driver.switchTo().alert());
    } finally {
      if (driver != null) driver.quit();
    }
  }

  @Test
  void bidiDismissTest() {
    ChromeOptions options = new ChromeOptions();
    options.enableBiDi();
    options.setUnhandledPromptBehaviour(UnexpectedAlertBehaviour.DISMISS);
    WebDriver driver = new ChromeDriver(options);
    try {
      driver.get("https://www.ianzhang.cn/s4ia/03-webdriver-advanced/interaction.html");
      driver.findElement(By.id("alert-btn")).click();
      Assertions.assertThrows(NoAlertPresentException.class, () -> driver.switchTo().alert());
    } finally {
      if (driver != null) driver.quit();
    }
  }

  @Test
  void bidiDismissAndNotifyTest() {
    ChromeOptions options = new ChromeOptions();
    options.enableBiDi();
    options.setUnhandledPromptBehaviour(UnexpectedAlertBehaviour.DISMISS_AND_NOTIFY);
    WebDriver driver = new ChromeDriver(options);
    try {
      driver.get("https://www.ianzhang.cn/s4ia/03-webdriver-advanced/interaction.html");
      driver.findElement(By.id("alert-btn")).click();
      Assertions.assertThrows(NoAlertPresentException.class, () -> driver.switchTo().alert());
    } finally {
      if (driver != null) driver.quit();
    }
  }

  @Test
  void bidiAcceptAndNotifyTest() {
    ChromeOptions options = new ChromeOptions();
    options.enableBiDi();
    options.setUnhandledPromptBehaviour(UnexpectedAlertBehaviour.ACCEPT_AND_NOTIFY);
    WebDriver driver = new ChromeDriver(options);
    try {
      driver.get("https://www.ianzhang.cn/s4ia/03-webdriver-advanced/interaction.html");
      driver.findElement(By.id("alert-btn")).click();
      Assertions.assertThrows(NoAlertPresentException.class, () -> driver.switchTo().alert());
    } finally {
      if (driver != null) driver.quit();
    }
  }

[pujagani]

It is a known breaking change in Chrome. If BiDi is enabled then alert handling is done via BiDi. Refer to GoogleChromeLabs/chromium-bidi#2351. Setting the "unhandledPromptBehavior" to "ignore" will help solve it. We added this line to the Selenium test setup https://github.com/SeleniumHQ/selenium/blob/trunk/java/test/org/openqa/selenium/testing/drivers/Browser.java#L70.

[github-actions]

This issue has been automatically locked since there has not been any recent activity since it was closed. Please open a new issue for related bugs.

[titusfortner]

For anyone coming to this, the current behavior by Chrome is incorrect. You can avoid it by explicitly passing "ignore" as the value, and maybe we need to do that in Selenium. Firefox has the correct behavior, I filed a bug here: GoogleChromeLabs/chromium-bidi#3873