1 files changed, 92 insertions, 0 deletions
diff --git a/activerecord/test/cases/migration/rename_table_test.rb b/activerecord/test/cases/migration/rename_table_test.rb
new file mode 100644
index 0000000000..ba39fb1dec
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+++ b/activerecord/test/cases/migration/rename_table_test.rb
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+require "cases/migration/helper"
+
+module ActiveRecord
+  class Migration
+    class RenameTableTest < ActiveRecord::TestCase
+      include ActiveRecord::Migration::TestHelper
+
+      self.use_transactional_fixtures = false
+
+      def setup
+        super
+        add_column 'test_models', :url, :string
+        remove_column 'test_models', :created_at
+        remove_column 'test_models', :updated_at
+      end
+
+      def teardown
+        rename_table :octopi, :test_models if connection.table_exists? :octopi
+        super
+      end
+
+      if current_adapter?(:SQLite3Adapter)
+        def test_rename_table_for_sqlite_should_work_with_reserved_words
+          renamed = false
+
+          add_column :test_models, :url, :string
+          connection.rename_table :references, :old_references
+          connection.rename_table :test_models, :references
+
+          renamed = true
+
+          # Using explicit id in insert for compatibility across all databases
+          connection.execute "INSERT INTO 'references' (url, created_at, updated_at) VALUES ('http://rubyonrails.com', 0, 0)"
+          assert_equal 'http://rubyonrails.com', connection.select_value("SELECT url FROM 'references' WHERE id=1")
+        ensure
+          return unless renamed
+          connection.rename_table :references, :test_models
+          connection.rename_table :old_references, :references
+        end
+      end
+
+      def test_rename_table
+        rename_table :test_models, :octopi
+
+        connection.execute "INSERT INTO octopi (#{connection.quote_column_name('id')}, #{connection.quote_column_name('url')}) VALUES (1, 'http://www.foreverflying.com/octopus-black7.jpg')"
+
+        assert_equal 'http://www.foreverflying.com/octopus-black7.jpg', connection.select_value("SELECT url FROM octopi WHERE id=1")
+      end
+
+      def test_rename_table_with_an_index
+        add_index :test_models, :url
+
+        rename_table :test_models, :octopi
+
+        connection.execute "INSERT INTO octopi (#{connection.quote_column_name('id')}, #{connection.quote_column_name('url')}) VALUES (1, 'http://www.foreverflying.com/octopus-black7.jpg')"
+
+        assert_equal 'http://www.foreverflying.com/octopus-black7.jpg', connection.select_value("SELECT url FROM octopi WHERE id=1")
+        index = connection.indexes(:octopi).first
+        assert index.columns.include?("url")
+        assert_equal 'index_octopi_on_url', index.name
+      end
+
+      def test_rename_table_does_not_rename_custom_named_index
+        add_index :test_models, :url, name: 'special_url_idx'
+
+        rename_table :test_models, :octopi
+
+        assert_equal ['special_url_idx'], connection.indexes(:octopi).map(&:name)
+      end
+
+      if current_adapter?(:PostgreSQLAdapter)
+        def test_rename_table_for_postgresql_should_also_rename_default_sequence
+          rename_table :test_models, :octopi
+
+          pk, seq = connection.pk_and_sequence_for('octopi')
+
+          assert_equal ConnectionAdapters::PostgreSQL::Name.new("public", "octopi_#{pk}_seq"), seq
+        end
+
+        def test_renaming_table_doesnt_attempt_to_rename_non_existent_sequences
+          enable_uuid_ossp!(connection)
+          connection.create_table :cats, id: :uuid
+          assert_nothing_raised { rename_table :cats, :felines }
+          assert connection.table_exists? :felines
+        ensure
+          connection.drop_table :cats if connection.table_exists? :cats
+          connection.drop_table :felines if connection.table_exists? :felines
+        end
+      end
+    end
+  end
+end