Added customer composite key

spec/models/company_spec.rb

@@ -0,0 +1,41 @@
+require 'rails_helper'
+
+RSpec.describe Company do
+  describe 'associations' do
+    it 'has many customers' do
+      expect(described_class.reflect_on_association(:customers).macro).to eq(:has_many)
+    end
+
+    it 'has many reservations' do
+      expect(described_class.reflect_on_association(:reservations).macro).to eq(:has_many)
+    end
+
+    it 'has many teams' do
+      expect(described_class.reflect_on_association(:teams).macro).to eq(:has_many)
+    end
+
+    it 'destroys dependent customers when deleted' do
+      expect(described_class.reflect_on_association(:customers).options[:dependent]).to eq(:destroy)
+    end
+
+    it 'destroys dependent reservations when deleted' do
+      expect(described_class.reflect_on_association(:reservations).options[:dependent]).to eq(:destroy)
+    end
+
+    it 'destroys dependent teams when deleted' do
+      expect(described_class.reflect_on_association(:teams).options[:dependent]).to eq(:destroy)
+    end
+  end
+
+  describe 'instance methods' do
+    let(:company) { described_class.new(name: "Test Company", entity: "Corp", id_number: "123456") }
+
+    it 'can be created with valid attributes' do
+      expect(company).to be_valid
+    end
+
+    it 'can be saved to the database' do
+      expect { company.save }.to change(described_class, :count).by(1)
+    end
+  end
+end