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Testing Freegeoip IP Address Lookup Integration in Geocoder

This test suite validates the Freegeoip lookup functionality in the Geocoder gem, focusing on IP address geolocation capabilities and configuration options. The tests ensure accurate location data retrieval and proper handling of special IP address cases.

Test Coverage Overview

The test suite provides comprehensive coverage of Freegeoip IP lookup functionality.

Key areas tested include:

Standard IP address geolocation lookup
Special case handling for loopback addresses
Private IP address handling
Result component validation
Custom host configuration

Implementation Analysis

The testing approach uses Ruby’s Test::Unit framework with custom assertions for geocoding validations. The implementation follows a structured pattern testing both successful cases and edge scenarios, utilizing the GeocoderTestCase base class for shared functionality.

Key patterns include:

Setup method for consistent test configuration
Individual test methods for specific functionality
Result object validation
Configuration testing

Technical Details

Testing infrastructure includes:

Ruby Test::Unit framework
GeocoderTestCase custom test class
Geocoder configuration management
Mock IP addresses for various scenarios
Custom host configuration capabilities

Best Practices Demonstrated

The test suite exemplifies strong testing practices through clear organization and comprehensive coverage. Each test focuses on a specific aspect of functionality with explicit assertions and proper setup/teardown handling.

Notable practices include:

Isolated test cases
Clear test method naming
Edge case coverage
Configuration testing
Consistent assertion patterns

alexreisner/geocoder

test/unit/lookups/freegeoip_test.rb

            
# encoding: utf-8
require 'test_helper'

class FreegeoipTest < GeocoderTestCase

  def setup
    super
    Geocoder.configure(ip_lookup: :freegeoip)
  end

  def test_result_on_ip_address_search
    result = Geocoder.search("74.200.247.59").first
    assert result.is_a?(Geocoder::Result::Freegeoip)
  end

  def test_result_on_loopback_ip_address_search
    result = Geocoder.search("127.0.0.1").first
    assert_equal "127.0.0.1", result.ip
    assert_equal 'RD',        result.country_code
    assert_equal "Reserved",  result.country
  end

  def test_result_on_private_ip_address_search
    result = Geocoder.search("172.19.0.1").first
    assert_equal "172.19.0.1", result.ip
    assert_equal 'RD',         result.country_code
    assert_equal "Reserved",   result.country
  end

  def test_result_components
    result = Geocoder.search("74.200.247.59").first
    assert_equal "Plano, TX 75093, United States", result.address
  end

  def test_host_config
    Geocoder.configure(freegeoip: {host: "local.com"})
    lookup = Geocoder::Lookup::Freegeoip.new
    query = Geocoder::Query.new("24.24.24.23")
    assert_match %r(https://local\.com), lookup.query_url(query)
  end
end