Back to Repositories

Validating Address String Formatting in maybe-finance

This test suite validates the Address model’s string formatting functionality in a Maybe Finance application. It focuses on proper address display formatting and string representation of address components, ensuring consistent output for US-based addresses.

Test Coverage Overview

The test suite covers the Address model’s to_s method implementation, verifying correct formatting of address components.

Key areas tested include:

Single-line address formatting
City/state/postal code combination
Country code placement
Proper line spacing and formatting

Implementation Analysis

The testing approach utilizes Minitest’s assertion framework within Rails’ ActiveSupport::TestCase. It employs a straightforward unit test pattern that instantiates an Address object with sample data and verifies its string representation.

The test leverages:

ActiveSupport::TestCase inheritance
Minitest assertion methods
Ruby’s heredoc-style string comparison

Technical Details

Testing infrastructure includes:

Minitest as the testing framework
Rails test helper integration
ActiveSupport::TestCase for Rails-specific testing features
Standard Ruby assert_equal matcher

Best Practices Demonstrated

The test exhibits several testing best practices including isolated unit testing, clear test naming, and comprehensive address component validation. It demonstrates proper test organization with a focused scope and clear assertion of expected outcomes.

Notable practices:

Descriptive test method naming
Complete test data setup
Clear expected vs actual value comparison
Proper whitespace handling in string comparison

maybe-finance/maybe

test/models/address_test.rb

            
require "test_helper"

class AddressTest < ActiveSupport::TestCase
  test "can print a formatted address" do
    address = Address.new(
      line1: "123 Main St",
      locality: "San Francisco",
      region: "CA",
      country: "US",
      postal_code: "94101"
    )

    assert_equal "123 Main St

San Francisco, CA 94101
US", address.to_s
  end
end