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Testing PDOK.nl Geocoding Implementation in alexreisner/geocoder

This test suite validates the PDOK.nl geocoding service integration within the Geocoder gem, focusing on address component parsing and location data accuracy for Dutch addresses. The tests ensure proper handling of address details and coordinate mapping.

Test Coverage Overview

The test suite provides comprehensive coverage of PDOK.nl geocoding functionality, specifically for Dutch address parsing and validation.

Validates address component extraction including street, number, city, and postal code
Tests coordinate accuracy for specific locations
Verifies provincial and country code mapping
Ensures proper formatting of complete address strings

Implementation Analysis

The testing approach employs Ruby’s test framework with the GeocoderTestCase base class for consistent setup and teardown.

Uses configuration setup for PDOK.nl lookup service
Implements assertion-based testing for each address component
Utilizes precise floating-point comparisons for coordinates

Technical Details

Ruby test framework with custom GeocoderTestCase class
UTF-8 encoding support for Dutch characters
Geocoder gem configuration for PDOK.nl service
Assertion methods for equality checking

Best Practices Demonstrated

The test implementation showcases several testing best practices for geocoding service validation.

Isolated test setup with proper configuration
Comprehensive component-level assertions
Clear test case organization
Real-world address data usage

alexreisner/geocoder

test/unit/lookups/pdok_nl_test.rb

            
# encoding: utf-8
require 'test_helper'

class PdokNlTest < GeocoderTestCase

  def setup
    super
    Geocoder.configure(lookup: :pdok_nl)
  end

  def test_result_components
    result = Geocoder.search('Nieuwezijds Voorburgwal 147, Amsterdam').first

    assert_equal result.street,         'Nieuwezijds Voorburgwal'
    assert_equal result.street_number,  '147'
    assert_equal result.city,           'Amsterdam'
    assert_equal result.postal_code,    '1012RJ'
    assert_equal result.address,        'Nieuwezijds Voorburgwal 147, 1012RJ Amsterdam'
    assert_equal result.province,       'Noord-Holland'
    assert_equal result.province_code,  'PV27'
    assert_equal result.country_code,   'NL'
    assert_equal result.latitude,       52.37316398
    assert_equal result.longitude,      4.89089949
  end
end