test: add generator template tests and fix zeitwerk warning

Added tests for the Rails generator template files to ensure they contain the expected content. Fixed a Zeitwerk warning by ignoring the generators directory in the loader.

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>

Author: kieranklaassen

CONTRIBUTING.md

@@ -133,6 +133,9 @@ bundle exec rspec
 
 # Run a specific test file
 bundle exec rspec spec/ruby_llm/chat_spec.rb
+
+# Run generator template tests
+bundle exec rspec spec/lib/generators/ruby_llm/template_files_spec.rb
 ```
 
 ### Recording VCR Cassettes

lib/ruby_llm.rb

@@ -20,6 +20,7 @@
 loader.ignore("#{__dir__}/tasks")
 loader.ignore("#{__dir__}/ruby_llm/railtie")
 loader.ignore("#{__dir__}/ruby_llm/active_record")
+loader.ignore("#{__dir__}/generators")
 loader.setup
 
 # A delightful Ruby interface to modern AI language models.

spec/lib/generators/ruby_llm/template_files_spec.rb

@@ -0,0 +1,95 @@
+# frozen_string_literal: true
+
+require 'spec_helper'
+require 'fileutils'
+
+RSpec.describe "Generator template files", type: :generator do
+  # Use the actual template directory
+  let(:template_dir) { "/Users/kieranklaassen/rails/ruby_llm/lib/generators/ruby_llm/install/templates" }
+  
+  describe "migration templates" do
+    it "has expected migration template files" do
+      expected_files = [
+        "create_chats_migration.rb",
+        "create_messages_migration.rb",
+        "create_tool_calls_migration.rb"
+      ]
+      
+      expected_files.each do |file|
+        expect(File.exist?(File.join(template_dir, file))).to be(true), "Expected template file #{file} to exist"
+      end
+    end
+    
+    it "has proper migration content" do
+      chat_migration = File.read(File.join(template_dir, "create_chats_migration.rb"))
+      expect(chat_migration).to include("create_table :chats")
+      expect(chat_migration).to include("t.string :model_id")
+      
+      message_migration = File.read(File.join(template_dir, "create_messages_migration.rb"))
+      expect(message_migration).to include("create_table :messages")
+      expect(message_migration).to include("t.references :chat")
+      expect(message_migration).to include("t.string :role")
+      expect(message_migration).to include("t.text :content")
+      
+      tool_call_migration = File.read(File.join(template_dir, "create_tool_calls_migration.rb"))
+      expect(tool_call_migration).to include("create_table :tool_calls")
+      expect(tool_call_migration).to include("t.references :message")
+      expect(tool_call_migration).to include("t.string :tool_call_id")
+      expect(tool_call_migration).to include("t.string :name")
+      expect(tool_call_migration).to include("t.jsonb :arguments")
+    end
+  end
+  
+  describe "model templates" do
+    it "has expected model template files" do
+      expected_files = [
+        "chat_model.rb",
+        "message_model.rb",
+        "tool_call_model.rb"
+      ]
+      
+      expected_files.each do |file|
+        expect(File.exist?(File.join(template_dir, file))).to be(true), "Expected template file #{file} to exist"
+      end
+    end
+    
+    it "has proper acts_as declarations in model templates" do
+      chat_content = File.read(File.join(template_dir, "chat_model.rb"))
+      expect(chat_content).to include("acts_as_chat")
+      
+      message_content = File.read(File.join(template_dir, "message_model.rb"))
+      expect(message_content).to include("acts_as_message")
+      
+      tool_call_content = File.read(File.join(template_dir, "tool_call_model.rb"))
+      expect(tool_call_content).to include("acts_as_tool_call")
+    end
+  end
+  
+  describe "initializer template" do
+    it "has expected initializer template file" do
+      expect(File.exist?(File.join(template_dir, "initializer.rb"))).to be(true)
+    end
+    
+    it "has proper configuration content" do
+      initializer_content = File.read(File.join(template_dir, "initializer.rb"))
+      expect(initializer_content).to include("RubyLLM.configure do |config|")
+      expect(initializer_content).to include("config.openai_api_key")
+      expect(initializer_content).to include("ENV[\"OPENAI_API_KEY\"]")
+      expect(initializer_content).to include("config.anthropic_api_key")
+    end
+  end
+  
+  describe "generator file structure" do
+    it "has proper directory structure" do
+      generator_file = "/Users/kieranklaassen/rails/ruby_llm/lib/generators/ruby_llm/install_generator.rb"
+      expect(File.exist?(generator_file)).to be(true)
+      
+      generator_content = File.read(generator_file)
+      expect(generator_content).to include("class InstallGenerator < Rails::Generators::Base")
+      expect(generator_content).to include("include Rails::Generators::Migration")
+      expect(generator_content).to include("def create_migration_files")
+      expect(generator_content).to include("def create_model_files")
+      expect(generator_content).to include("def create_initializer")
+    end
+  end
+end