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Testing Browser Forward Navigation Implementation in Capybara

This test suite validates the browser navigation functionality in Capybara, specifically focusing on the go_forward method. It ensures proper state management and content verification when navigating between different pages in a web application test environment.

Test Coverage Overview

The test suite provides comprehensive coverage of the browser forward navigation functionality:

Validates page content before and after navigation
Tests the complete navigation flow: initial visit, secondary visit, back navigation, and forward navigation
Verifies content persistence across navigation steps
Ensures proper state management during page transitions

Implementation Analysis

The testing approach employs Capybara’s session management and content verification methods:

The implementation uses a sequential navigation pattern with explicit content verification at each step. It leverages Capybara’s JavaScript-enabled testing capabilities (requires: [:js]) and combines visit, go_back, and go_forward commands with content assertions.

Technical Details

Requires JavaScript support enabled in the driver
Uses Capybara’s session management (@session)
Employs RSpec expectation syntax
Utilizes have_content matcher for verification
Tests against root (/) and /foo endpoints

Best Practices Demonstrated

The test exemplifies several testing best practices in web application testing:

Clear setup and verification steps
Atomic test focusing on single functionality
Proper state verification at each navigation step
Explicit content checking for reliability
Use of descriptive test naming

teamcapybara/capybara

lib/capybara/spec/session/go_forward_spec.rb

            
# frozen_string_literal: true

Capybara::SpecHelper.spec '#go_forward', requires: [:js] do
  it 'should fetch a response from the driver from the previous page' do
    @session.visit('/')
    expect(@session).to have_content('Hello world!')
    @session.visit('/foo')
    expect(@session).to have_content('Another World')
    @session.go_back
    expect(@session).to have_content('Hello world!')
    @session.go_forward
    expect(@session).to have_content('Another World')
  end
end