1 files changed, 100 insertions, 0 deletions
diff --git a/activerecord/test/models/company_in_module.rb b/activerecord/test/models/company_in_module.rb
new file mode 100644
index 0000000000..52b7e06a63
--- /dev/null
+++ b/activerecord/test/models/company_in_module.rb
@@ -0,0 +1,100 @@
+# frozen_string_literal: true
+
+require "active_support/core_ext/object/with_options"
+
+module MyApplication
+  module Business
+    class Company < ActiveRecord::Base
+    end
+
+    class Firm < Company
+      has_many :clients, -> { order("id") }, dependent: :destroy
+      has_many :clients_sorted_desc, -> { order("id DESC") }, class_name: "Client"
+      has_many :clients_of_firm, -> { order "id" }, foreign_key: "client_of", class_name: "Client"
+      has_many :clients_like_ms, -> { where("name = 'Microsoft'").order("id") }, class_name: "Client"
+      has_one :account, class_name: "MyApplication::Billing::Account", dependent: :destroy
+    end
+
+    class Client < Company
+      belongs_to :firm, foreign_key: "client_of"
+      belongs_to :firm_with_other_name, class_name: "Firm", foreign_key: "client_of"
+
+      class Contact < ActiveRecord::Base; end
+    end
+
+    class Developer < ActiveRecord::Base
+      has_and_belongs_to_many :projects
+      validates_length_of :name, within: (3..20)
+    end
+
+    class Project < ActiveRecord::Base
+      has_and_belongs_to_many :developers
+    end
+
+    module Prefixed
+      def self.table_name_prefix
+        "prefixed_"
+      end
+
+      class Company < ActiveRecord::Base
+      end
+
+      class Firm < Company
+        self.table_name = "companies"
+      end
+
+      module Nested
+        class Company < ActiveRecord::Base
+        end
+      end
+    end
+
+    module Suffixed
+      def self.table_name_suffix
+        "_suffixed"
+      end
+
+      class Company < ActiveRecord::Base
+      end
+
+      class Firm < Company
+        self.table_name = "companies"
+      end
+
+      module Nested
+        class Company < ActiveRecord::Base
+        end
+      end
+    end
+  end
+
+  module Billing
+    class Firm < ActiveRecord::Base
+      self.table_name = "companies"
+    end
+
+    module Nested
+      class Firm < ActiveRecord::Base
+        self.table_name = "companies"
+      end
+    end
+
+    class Account < ActiveRecord::Base
+      with_options(foreign_key: :firm_id) do |i|
+        i.belongs_to :firm, class_name: "MyApplication::Business::Firm"
+        i.belongs_to :qualified_billing_firm, class_name: "MyApplication::Billing::Firm"
+        i.belongs_to :unqualified_billing_firm, class_name: "Firm"
+        i.belongs_to :nested_qualified_billing_firm, class_name: "MyApplication::Billing::Nested::Firm"
+        i.belongs_to :nested_unqualified_billing_firm, class_name: "Nested::Firm"
+      end
+
+      validate :check_empty_credit_limit
+
+      private
+
+        def check_empty_credit_limit
+          errors.add("credit_card", :blank) if credit_card.blank?
+        end
+    end
+  end
+end