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Testing CamelCase String Factory Definitions in Factory Bot

This test suite validates Factory Bot’s ability to handle factory definitions using camel case strings. It ensures proper registration and instantiation of factories when defined with CamelCase naming conventions, which is crucial for maintaining flexibility in factory naming patterns.

Test Coverage Overview

The test coverage focuses on Factory Bot’s factory registration mechanism when using camel case string identifiers.

Verifies registration of factories defined with CamelCase strings
Tests the internal factory lookup functionality
Ensures proper class association with string-based factory names

Implementation Analysis

The testing approach employs RSpec’s describe and it blocks to isolate factory registration behavior. It utilizes Factory Bot’s define_model helper for test setup and leverages the Internal API to verify factory registration.

Uses before block for test environment setup
Implements factory definition using string syntax
Validates factory registration through Internal API checks

Technical Details

RSpec testing framework
Factory Bot’s define_model helper method
Factory Bot’s Internal factory registry
Class-based factory definition approach
String-based factory naming convention

Best Practices Demonstrated

The test exemplifies clean testing practices by maintaining focused test scope and clear assertions.

Isolated test setup using before blocks
Clear test case naming
Single responsibility principle in test design
Explicit expectation checking
Proper use of Factory Bot’s API

thoughtbot/factory_bot

spec/acceptance/definition_camel_string_spec.rb

            
describe "an instance generated by a factory named a camel case string " do
  before do
    define_model("UserModel")

    FactoryBot.define do
      factory "UserModel", class: UserModel
    end
  end

  it "registers the UserModel factory" do
    expect(FactoryBot::Internal.factory_by_name("UserModel"))
      .to be_a(FactoryBot::Factory)
  end
end