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WebDriver BiDi Logging Features | Selenium

WebDriver BiDi Logging Features

These features are related to logging. Because “logging” can refer to so many different things, these methods are made available via a “script” namespace.

Remember that to use WebDriver BiDi, you must enable it in Options. For more details, see Enabling BiDi

Console Message Handlers

Record or take actions on console.log events.

Add Handler

Implementation Missing

    driver.script.add_console_message_handler(log_entries.append)
/examples/python/tests/bidi/test_bidi_logging.py 
import pytest
from selenium.webdriver.common.by import By
from selenium.webdriver.support.wait import WebDriverWait


@pytest.mark.driver_type("bidi")
def test_add_console_log_handler(driver):
    driver.get('https://www.selenium.dev/selenium/web/bidi/logEntryAdded.html')
    log_entries = []

    driver.script.add_console_message_handler(log_entries.append)

    driver.find_element(By.ID, "consoleLog").click()
    WebDriverWait(driver, 5).until(lambda _: log_entries)
    assert log_entries[0].text == "Hello, world!"


@pytest.mark.driver_type("bidi")
def test_remove_console_log_handler(driver):
    driver.get('https://www.selenium.dev/selenium/web/bidi/logEntryAdded.html')
    log_entries = []

    id = driver.script.add_console_message_handler(log_entries.append)
    driver.script.remove_console_message_handler(id)

    driver.find_element(By.ID, "consoleLog").click()
    assert len(log_entries) == 0


@pytest.mark.driver_type("bidi")
def test_add_js_exception_handler(driver):
    driver.get('https://www.selenium.dev/selenium/web/bidi/logEntryAdded.html')
    log_entries = []

    driver.script.add_javascript_error_handler(log_entries.append)

    driver.find_element(By.ID, "jsException").click()
    WebDriverWait(driver, 5).until(lambda _: log_entries)
    assert log_entries[0].text == "Error: Not working"


@pytest.mark.driver_type("bidi")
def test_remove_js_exception_handler(driver):
    driver.get('https://www.selenium.dev/selenium/web/bidi/logEntryAdded.html')
    log_entries = []

    id = driver.script.add_javascript_error_handler(log_entries.append)
    driver.script.remove_javascript_error_handler(id)

    driver.find_element(By.ID, "consoleLog").click()
    assert len(log_entries) == 0

Implementation Missing

/examples/ruby/spec/bidi/logging_spec.rb 
# frozen_string_literal: true

require 'spec_helper'

RSpec.describe 'Logging' do
  let(:driver) { start_bidi_session }
  let(:wait) { Selenium::WebDriver::Wait.new(timeout: 2) }

  it 'adds console message handler' do
    driver.navigate.to 'https://www.selenium.dev/selenium/web/bidi/logEntryAdded.html'
    log_entries = []

    driver.script.add_console_message_handler { |log| log_entries << log }

    driver.find_element(id: 'consoleLog').click
    wait.until { log_entries.any? }
    expect(log_entries.first&.text).to eq 'Hello, world!'
  end

  it 'removes console message handler' do
    driver.navigate.to 'https://www.selenium.dev/selenium/web/bidi/logEntryAdded.html'
    log_entries = []

    id = driver.script.add_console_message_handler { |log| log_entries << log }
    driver.script.remove_console_message_handler(id)

    driver.find_element(id: 'consoleLog').click
    expect(log_entries).to be_empty
  end

  it 'adds JavaScript error handler' do
    driver.navigate.to 'https://www.selenium.dev/selenium/web/bidi/logEntryAdded.html'
    log_entries = []

    driver.script.add_javascript_error_handler { |error| log_entries << error }

    driver.find_element(id: 'jsException').click
    wait.until { log_entries.any? }
    expect(log_entries.first&.text).to eq 'Error: Not working'
  end

  it 'removes JavaScript error handler' do
    driver.navigate.to 'https://www.selenium.dev/selenium/web/bidi/logEntryAdded.html'
    log_entries = []

    id = driver.script.add_javascript_error_handler { |error| log_entries << error }
    driver.script.remove_javascript_error_handler(id)

    driver.find_element(id: 'jsException').click
    expect(log_entries).to be_empty
  end
end

Implementation Missing

Implementation Missing

Remove Handler

You need to store the ID returned when adding the handler to delete it.

Implementation Missing

    id = driver.script.add_console_message_handler(log_entries.append)
    driver.script.remove_console_message_handler(id)
/examples/python/tests/bidi/test_bidi_logging.py 
import pytest
from selenium.webdriver.common.by import By
from selenium.webdriver.support.wait import WebDriverWait


@pytest.mark.driver_type("bidi")
def test_add_console_log_handler(driver):
    driver.get('https://www.selenium.dev/selenium/web/bidi/logEntryAdded.html')
    log_entries = []

    driver.script.add_console_message_handler(log_entries.append)

    driver.find_element(By.ID, "consoleLog").click()
    WebDriverWait(driver, 5).until(lambda _: log_entries)
    assert log_entries[0].text == "Hello, world!"


@pytest.mark.driver_type("bidi")
def test_remove_console_log_handler(driver):
    driver.get('https://www.selenium.dev/selenium/web/bidi/logEntryAdded.html')
    log_entries = []

    id = driver.script.add_console_message_handler(log_entries.append)
    driver.script.remove_console_message_handler(id)

    driver.find_element(By.ID, "consoleLog").click()
    assert len(log_entries) == 0


@pytest.mark.driver_type("bidi")
def test_add_js_exception_handler(driver):
    driver.get('https://www.selenium.dev/selenium/web/bidi/logEntryAdded.html')
    log_entries = []

    driver.script.add_javascript_error_handler(log_entries.append)

    driver.find_element(By.ID, "jsException").click()
    WebDriverWait(driver, 5).until(lambda _: log_entries)
    assert log_entries[0].text == "Error: Not working"


@pytest.mark.driver_type("bidi")
def test_remove_js_exception_handler(driver):
    driver.get('https://www.selenium.dev/selenium/web/bidi/logEntryAdded.html')
    log_entries = []

    id = driver.script.add_javascript_error_handler(log_entries.append)
    driver.script.remove_javascript_error_handler(id)

    driver.find_element(By.ID, "consoleLog").click()
    assert len(log_entries) == 0

Implementation Missing

/examples/ruby/spec/bidi/logging_spec.rb 
# frozen_string_literal: true

require 'spec_helper'

RSpec.describe 'Logging' do
  let(:driver) { start_bidi_session }
  let(:wait) { Selenium::WebDriver::Wait.new(timeout: 2) }

  it 'adds console message handler' do
    driver.navigate.to 'https://www.selenium.dev/selenium/web/bidi/logEntryAdded.html'
    log_entries = []

    driver.script.add_console_message_handler { |log| log_entries << log }

    driver.find_element(id: 'consoleLog').click
    wait.until { log_entries.any? }
    expect(log_entries.first&.text).to eq 'Hello, world!'
  end

  it 'removes console message handler' do
    driver.navigate.to 'https://www.selenium.dev/selenium/web/bidi/logEntryAdded.html'
    log_entries = []

    id = driver.script.add_console_message_handler { |log| log_entries << log }
    driver.script.remove_console_message_handler(id)

    driver.find_element(id: 'consoleLog').click
    expect(log_entries).to be_empty
  end

  it 'adds JavaScript error handler' do
    driver.navigate.to 'https://www.selenium.dev/selenium/web/bidi/logEntryAdded.html'
    log_entries = []

    driver.script.add_javascript_error_handler { |error| log_entries << error }

    driver.find_element(id: 'jsException').click
    wait.until { log_entries.any? }
    expect(log_entries.first&.text).to eq 'Error: Not working'
  end

  it 'removes JavaScript error handler' do
    driver.navigate.to 'https://www.selenium.dev/selenium/web/bidi/logEntryAdded.html'
    log_entries = []

    id = driver.script.add_javascript_error_handler { |error| log_entries << error }
    driver.script.remove_javascript_error_handler(id)

    driver.find_element(id: 'jsException').click
    expect(log_entries).to be_empty
  end
end

Implementation Missing

Implementation Missing

JavaScript Exception Handlers

Record or take actions on JavaScript exception events.

Add Handler

Implementation Missing

    driver.script.add_javascript_error_handler(log_entries.append)
/examples/python/tests/bidi/test_bidi_logging.py 
import pytest
from selenium.webdriver.common.by import By
from selenium.webdriver.support.wait import WebDriverWait


@pytest.mark.driver_type("bidi")
def test_add_console_log_handler(driver):
    driver.get('https://www.selenium.dev/selenium/web/bidi/logEntryAdded.html')
    log_entries = []

    driver.script.add_console_message_handler(log_entries.append)

    driver.find_element(By.ID, "consoleLog").click()
    WebDriverWait(driver, 5).until(lambda _: log_entries)
    assert log_entries[0].text == "Hello, world!"


@pytest.mark.driver_type("bidi")
def test_remove_console_log_handler(driver):
    driver.get('https://www.selenium.dev/selenium/web/bidi/logEntryAdded.html')
    log_entries = []

    id = driver.script.add_console_message_handler(log_entries.append)
    driver.script.remove_console_message_handler(id)

    driver.find_element(By.ID, "consoleLog").click()
    assert len(log_entries) == 0


@pytest.mark.driver_type("bidi")
def test_add_js_exception_handler(driver):
    driver.get('https://www.selenium.dev/selenium/web/bidi/logEntryAdded.html')
    log_entries = []

    driver.script.add_javascript_error_handler(log_entries.append)

    driver.find_element(By.ID, "jsException").click()
    WebDriverWait(driver, 5).until(lambda _: log_entries)
    assert log_entries[0].text == "Error: Not working"


@pytest.mark.driver_type("bidi")
def test_remove_js_exception_handler(driver):
    driver.get('https://www.selenium.dev/selenium/web/bidi/logEntryAdded.html')
    log_entries = []

    id = driver.script.add_javascript_error_handler(log_entries.append)
    driver.script.remove_javascript_error_handler(id)

    driver.find_element(By.ID, "consoleLog").click()
    assert len(log_entries) == 0

Implementation Missing

/examples/ruby/spec/bidi/logging_spec.rb 
# frozen_string_literal: true

require 'spec_helper'

RSpec.describe 'Logging' do
  let(:driver) { start_bidi_session }
  let(:wait) { Selenium::WebDriver::Wait.new(timeout: 2) }

  it 'adds console message handler' do
    driver.navigate.to 'https://www.selenium.dev/selenium/web/bidi/logEntryAdded.html'
    log_entries = []

    driver.script.add_console_message_handler { |log| log_entries << log }

    driver.find_element(id: 'consoleLog').click
    wait.until { log_entries.any? }
    expect(log_entries.first&.text).to eq 'Hello, world!'
  end

  it 'removes console message handler' do
    driver.navigate.to 'https://www.selenium.dev/selenium/web/bidi/logEntryAdded.html'
    log_entries = []

    id = driver.script.add_console_message_handler { |log| log_entries << log }
    driver.script.remove_console_message_handler(id)

    driver.find_element(id: 'consoleLog').click
    expect(log_entries).to be_empty
  end

  it 'adds JavaScript error handler' do
    driver.navigate.to 'https://www.selenium.dev/selenium/web/bidi/logEntryAdded.html'
    log_entries = []

    driver.script.add_javascript_error_handler { |error| log_entries << error }

    driver.find_element(id: 'jsException').click
    wait.until { log_entries.any? }
    expect(log_entries.first&.text).to eq 'Error: Not working'
  end

  it 'removes JavaScript error handler' do
    driver.navigate.to 'https://www.selenium.dev/selenium/web/bidi/logEntryAdded.html'
    log_entries = []

    id = driver.script.add_javascript_error_handler { |error| log_entries << error }
    driver.script.remove_javascript_error_handler(id)

    driver.find_element(id: 'jsException').click
    expect(log_entries).to be_empty
  end
end

Implementation Missing

Implementation Missing

Remove Handler

You need to store the ID returned when adding the handler to delete it.

Implementation Missing

    id = driver.script.add_javascript_error_handler(log_entries.append)
    driver.script.remove_javascript_error_handler(id)
/examples/python/tests/bidi/test_bidi_logging.py 
import pytest
from selenium.webdriver.common.by import By
from selenium.webdriver.support.wait import WebDriverWait


@pytest.mark.driver_type("bidi")
def test_add_console_log_handler(driver):
    driver.get('https://www.selenium.dev/selenium/web/bidi/logEntryAdded.html')
    log_entries = []

    driver.script.add_console_message_handler(log_entries.append)

    driver.find_element(By.ID, "consoleLog").click()
    WebDriverWait(driver, 5).until(lambda _: log_entries)
    assert log_entries[0].text == "Hello, world!"


@pytest.mark.driver_type("bidi")
def test_remove_console_log_handler(driver):
    driver.get('https://www.selenium.dev/selenium/web/bidi/logEntryAdded.html')
    log_entries = []

    id = driver.script.add_console_message_handler(log_entries.append)
    driver.script.remove_console_message_handler(id)

    driver.find_element(By.ID, "consoleLog").click()
    assert len(log_entries) == 0


@pytest.mark.driver_type("bidi")
def test_add_js_exception_handler(driver):
    driver.get('https://www.selenium.dev/selenium/web/bidi/logEntryAdded.html')
    log_entries = []

    driver.script.add_javascript_error_handler(log_entries.append)

    driver.find_element(By.ID, "jsException").click()
    WebDriverWait(driver, 5).until(lambda _: log_entries)
    assert log_entries[0].text == "Error: Not working"


@pytest.mark.driver_type("bidi")
def test_remove_js_exception_handler(driver):
    driver.get('https://www.selenium.dev/selenium/web/bidi/logEntryAdded.html')
    log_entries = []

    id = driver.script.add_javascript_error_handler(log_entries.append)
    driver.script.remove_javascript_error_handler(id)

    driver.find_element(By.ID, "consoleLog").click()
    assert len(log_entries) == 0

Implementation Missing

/examples/ruby/spec/bidi/logging_spec.rb 
# frozen_string_literal: true

require 'spec_helper'

RSpec.describe 'Logging' do
  let(:driver) { start_bidi_session }
  let(:wait) { Selenium::WebDriver::Wait.new(timeout: 2) }

  it 'adds console message handler' do
    driver.navigate.to 'https://www.selenium.dev/selenium/web/bidi/logEntryAdded.html'
    log_entries = []

    driver.script.add_console_message_handler { |log| log_entries << log }

    driver.find_element(id: 'consoleLog').click
    wait.until { log_entries.any? }
    expect(log_entries.first&.text).to eq 'Hello, world!'
  end

  it 'removes console message handler' do
    driver.navigate.to 'https://www.selenium.dev/selenium/web/bidi/logEntryAdded.html'
    log_entries = []

    id = driver.script.add_console_message_handler { |log| log_entries << log }
    driver.script.remove_console_message_handler(id)

    driver.find_element(id: 'consoleLog').click
    expect(log_entries).to be_empty
  end

  it 'adds JavaScript error handler' do
    driver.navigate.to 'https://www.selenium.dev/selenium/web/bidi/logEntryAdded.html'
    log_entries = []

    driver.script.add_javascript_error_handler { |error| log_entries << error }

    driver.find_element(id: 'jsException').click
    wait.until { log_entries.any? }
    expect(log_entries.first&.text).to eq 'Error: Not working'
  end

  it 'removes JavaScript error handler' do
    driver.navigate.to 'https://www.selenium.dev/selenium/web/bidi/logEntryAdded.html'
    log_entries = []

    id = driver.script.add_javascript_error_handler { |error| log_entries << error }
    driver.script.remove_javascript_error_handler(id)

    driver.find_element(id: 'jsException').click
    expect(log_entries).to be_empty
  end
end

Implementation Missing

Implementation Missing

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