make specs play well together

spec/database_cleaner/data_mapper/truncation/sqlite3_spec.rb

@@ -16,24 +16,24 @@ module DataMapper
       end
 
       before(:each) do
-        connection.truncate_tables ['users']
+        connection.truncate_tables(DataMapper::Model.descendants.map { |d| d.storage_names[:default] || d.name.underscore })
       end
 
       describe "#truncate_table" do
         it "truncates the table" do
-          2.times { User.create }
+          2.times { DmUser.create }
 
-          connection.truncate_table('users')
-          User.count.should eq 0
+          connection.truncate_table(DmUser.storage_names[:default])
+          DmUser.count.should eq 0
         end
 
         it "resets AUTO_INCREMENT index of table" do
-          2.times { User.create }
-          User.destroy
+          2.times { DmUser.create }
+          DmUser.destroy
 
-          connection.truncate_table('users')
+          connection.truncate_table(DmUser.storage_names[:default])
 
-          User.create.id.should eq 1
+          DmUser.create.id.should eq 1
         end
       end
 

spec/support/active_record/mysql2_setup.rb

@@ -3,6 +3,7 @@ require 'support/active_record/schema_setup'
 
 
 module MySQL2Helper
+
   puts "Active Record #{ActiveRecord::VERSION::STRING}, mysql2"
 
   # require 'logger'
@@ -26,7 +27,7 @@ module MySQL2Helper
   def active_record_mysql2_setup
     create_db
     establish_connection
-    load_schema
+    active_record_load_schema
   end
 
   def active_record_mysql2_connection

spec/support/active_record/mysql_setup.rb

@@ -2,6 +2,7 @@ require 'support/active_record/database_setup'
 require 'support/active_record/schema_setup'
 
 module MySQLHelper
+
   puts "Active Record #{ActiveRecord::VERSION::STRING}, mysql"
 
   # require 'logger'
@@ -25,7 +26,7 @@ module MySQLHelper
   def active_record_mysql_setup
     create_db
     establish_connection
-    load_schema
+    active_record_load_schema
   end
 
   def active_record_mysql_connection

spec/support/active_record/postgresql_setup.rb

@@ -2,6 +2,7 @@ require 'support/active_record/database_setup'
 require 'support/active_record/schema_setup'
 
 module PostgreSQLHelper
+
   puts "Active Record #{ActiveRecord::VERSION::STRING}, pg"
 
   # ActiveRecord::Base.logger = Logger.new(STDERR)
@@ -28,7 +29,7 @@ module PostgreSQLHelper
   def active_record_pg_setup
     create_db
     establish_connection
-    load_schema
+    active_record_load_schema
   end
 
   def active_record_pg_connection

spec/support/active_record/schema_setup.rb

@@ -1,4 +1,4 @@
-def load_schema
+def active_record_load_schema
   ActiveRecord::Schema.define do
     create_table :users, :force => true do |t|
       t.integer :name

spec/support/active_record/sqlite3_setup.rb

@@ -2,6 +2,7 @@ require 'support/active_record/database_setup'
 require 'support/active_record/schema_setup'
 
 module SQLite3Helper
+
   puts "Active Record #{ActiveRecord::VERSION::STRING}, sqlite3"
 
   # ActiveRecord::Base.logger = Logger.new(STDERR)
@@ -27,7 +28,7 @@ module SQLite3Helper
   def active_record_sqlite3_setup
     create_db
     establish_connection
-    load_schema
+    active_record_load_schema
   end
 
   def active_record_sqlite3_connection

spec/support/data_mapper/schema_setup.rb

@@ -1,12 +1,14 @@
-def load_schema
+def data_mapper_load_schema
   require 'dm-migrations'
 
   DataMapper.auto_migrate!
 end
 
-class ::User
+class ::DmUser
   include DataMapper::Resource
 
+  self.storage_names[:default] = 'users'
+
   property :id, Serial
   property :name, String
 

spec/support/data_mapper/sqlite3_setup.rb

@@ -2,6 +2,7 @@ require 'support/active_record/database_setup'
 require 'support/data_mapper/schema_setup'
 
 module DataMapperSQLite3Helper
+
   puts "DataMapper #{DataMapper::VERSION}, sqlite3"
 
   def config
@@ -25,7 +26,7 @@ module DataMapperSQLite3Helper
   def data_mapper_sqlite3_setup
     create_db
     establish_connection
-    load_schema
+    data_mapper_load_schema
   end
 
   def data_mapper_sqlite3_connection