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Testing Current Window Management Features in Capybara

This test suite validates the functionality of Capybara’s window management capabilities, specifically focusing on the #current_window method. It ensures proper window handling and switching behavior in web application testing scenarios.

Test Coverage Overview

The test suite provides comprehensive coverage of Capybara’s window management functionality.

Key areas tested include:

Window instance verification
Window switching behavior
Current window state management
Window cleanup and handling

Implementation Analysis

The testing approach employs a structured before/after pattern to ensure clean test state management. The implementation uses Capybara’s window management API to validate window operations, with specific focus on the current_window method and window switching functionality.

Technical patterns include:

State setup and teardown
Window object verification
Dynamic window creation and switching
Change expectation validation

Technical Details

Testing tools and configuration:

Capybara test framework
RSpec expectation syntax
Window management APIs
CSS selector interaction
Automated cleanup procedures

Best Practices Demonstrated

The test suite demonstrates several testing best practices for browser automation.

Notable practices include:

Proper test isolation
Resource cleanup
State management
Clear expectations
Defensive programming techniques

teamcapybara/capybara

lib/capybara/spec/session/window/current_window_spec.rb

            
# frozen_string_literal: true

Capybara::SpecHelper.spec '#current_window', requires: [:windows] do
  before do
    @window = @session.current_window
    @session.visit('/with_windows')
  end

  after do
    (@session.windows - [@window]).each do |w|
      @session.switch_to_window w
      w.close
    end
    @session.switch_to_window(@window)
  end

  it 'should return window' do
    expect(@session.current_window).to be_instance_of(Capybara::Window)
  end

  it 'should be modified by switching to another window' do
    window = @session.window_opened_by { @session.find(:css, '#openWindow').click }

    expect do
      @session.switch_to_window(window)
    end.to change { @session.current_window }.from(@window).to(window)
  end
end