Merge remote branch 'brianmario/3-0-stable' into 3-0-stable

Gemfile

@@ -35,6 +35,7 @@ platforms :ruby do
   group :db do
     gem "pg", ">= 0.9.0"
     gem "mysql", ">= 2.8.1"
+    gem "mysql2", :git => 'git://github.com/brianmario/mysql2.git'
   end
 end
 

activerecord/Rakefile

@@ -24,14 +24,14 @@ def run_without_aborting(*tasks)
   abort "Errors running #{errors.join(', ')}" if errors.any?
 end
 
-desc 'Run mysql, sqlite, and postgresql tests by default'
+desc 'Run mysql, mysql2, sqlite, and postgresql tests by default'
 task :default => :test
 
-desc 'Run mysql, sqlite, and postgresql tests'
+desc 'Run mysql, mysql2, sqlite, and postgresql tests'
 task :test do
   tasks = defined?(JRUBY_VERSION) ?
     %w(test_jdbcmysql test_jdbcsqlite3 test_jdbcpostgresql) :
-    %w(test_mysql test_sqlite3 test_postgresql)
+    %w(test_mysql test_mysql2 test_sqlite3 test_postgresql)
   run_without_aborting(*tasks)
 end
 
@@ -39,15 +39,15 @@ namespace :test do
   task :isolated do
     tasks = defined?(JRUBY_VERSION) ?
       %w(isolated_test_jdbcmysql isolated_test_jdbcsqlite3 isolated_test_jdbcpostgresql) :
-      %w(isolated_test_mysql isolated_test_sqlite3 isolated_test_postgresql)
+      %w(isolated_test_mysql isolated_test_mysql2 isolated_test_sqlite3 isolated_test_postgresql)
     run_without_aborting(*tasks)
   end
 end
 
-%w( mysql postgresql sqlite3 firebird db2 oracle sybase openbase frontbase jdbcmysql jdbcpostgresql jdbcsqlite3 jdbcderby jdbch2 jdbchsqldb ).each do |adapter|
+%w( mysql mysql2 postgresql sqlite3 firebird db2 oracle sybase openbase frontbase jdbcmysql jdbcpostgresql jdbcsqlite3 jdbcderby jdbch2 jdbchsqldb ).each do |adapter|
   Rake::TestTask.new("test_#{adapter}") { |t|
     connection_path = "test/connections/#{adapter =~ /jdbc/ ? 'jdbc' : 'native'}_#{adapter}"
-    adapter_short = adapter == 'db2' ? adapter : adapter[/^[a-z]+/]
+    adapter_short = adapter == 'db2' ? adapter : adapter[/^[a-z0-9]+/]
     t.libs << "test" << connection_path
     t.test_files = (Dir.glob( "test/cases/**/*_test.rb" ).reject {
       |x| x =~ /\/adapters\//
@@ -59,7 +59,7 @@ end
 
   task "isolated_test_#{adapter}" do
     connection_path = "test/connections/#{adapter =~ /jdbc/ ? 'jdbc' : 'native'}_#{adapter}"
-    adapter_short = adapter == 'db2' ? adapter : adapter[/^[a-z]+/]
+    adapter_short = adapter == 'db2' ? adapter : adapter[/^[a-z0-9]+/]
     puts [adapter, adapter_short, connection_path].inspect
     ruby = File.join(*RbConfig::CONFIG.values_at('bindir', 'RUBY_INSTALL_NAME'))
     (Dir["test/cases/**/*_test.rb"].reject {

activerecord/lib/active_record/connection_adapters/mysql2_adapter.rb

@@ -0,0 +1,639 @@
+# encoding: utf-8
+
+require 'mysql2' unless defined? Mysql2
+
+module ActiveRecord
+  class Base
+    def self.mysql2_connection(config)
+      config[:username] = 'root' if config[:username].nil?
+      client = Mysql2::Client.new(config.symbolize_keys)
+      options = [config[:host], config[:username], config[:password], config[:database], config[:port], config[:socket], 0]
+      ConnectionAdapters::Mysql2Adapter.new(client, logger, options, config)
+    end
+  end
+
+  module ConnectionAdapters
+    class Mysql2Column < Column
+      BOOL = "tinyint(1)"
+      def extract_default(default)
+        if sql_type =~ /blob/i || type == :text
+          if default.blank?
+            return null ? nil : ''
+          else
+            raise ArgumentError, "#{type} columns cannot have a default value: #{default.inspect}"
+          end
+        elsif missing_default_forged_as_empty_string?(default)
+          nil
+        else
+          super
+        end
+      end
+
+      def has_default?
+        return false if sql_type =~ /blob/i || type == :text #mysql forbids defaults on blob and text columns
+        super
+      end
+
+      # Returns the Ruby class that corresponds to the abstract data type.
+      def klass
+        case type
+          when :integer       then Fixnum
+          when :float         then Float
+          when :decimal       then BigDecimal
+          when :datetime      then Time
+          when :date          then Date
+          when :timestamp     then Time
+          when :time          then Time
+          when :text, :string then String
+          when :binary        then String
+          when :boolean       then Object
+        end
+      end
+
+      def type_cast(value)
+        return nil if value.nil?
+        case type
+          when :string                then value
+          when :text                  then value
+          when :integer               then value.to_i rescue value ? 1 : 0
+          when :float                 then value.to_f # returns self if it's already a Float
+          when :decimal               then self.class.value_to_decimal(value)
+          when :datetime, :timestamp  then value.class == Time ? value : self.class.string_to_time(value)
+          when :time                  then value.class == Time ? value : self.class.string_to_dummy_time(value)
+          when :date                  then value.class == Date ? value : self.class.string_to_date(value)
+          when :binary                then value
+          when :boolean               then self.class.value_to_boolean(value)
+          else value
+        end
+      end
+
+      def type_cast_code(var_name)
+        case type
+          when :string                then nil
+          when :text                  then nil
+          when :integer               then "#{var_name}.to_i rescue #{var_name} ? 1 : 0"
+          when :float                 then "#{var_name}.to_f"
+          when :decimal               then "#{self.class.name}.value_to_decimal(#{var_name})"
+          when :datetime, :timestamp  then "#{var_name}.class == Time ? #{var_name} : #{self.class.name}.string_to_time(#{var_name})"
+          when :time                  then "#{var_name}.class == Time ? #{var_name} : #{self.class.name}.string_to_dummy_time(#{var_name})"
+          when :date                  then "#{var_name}.class == Date ? #{var_name} : #{self.class.name}.string_to_date(#{var_name})"
+          when :binary                then nil
+          when :boolean               then "#{self.class.name}.value_to_boolean(#{var_name})"
+          else nil
+        end
+      end
+
+      private
+        def simplified_type(field_type)
+          return :boolean if Mysql2Adapter.emulate_booleans && field_type.downcase.index(BOOL)
+          return :string  if field_type =~ /enum/i or field_type =~ /set/i
+          return :integer if field_type =~ /year/i
+          return :binary  if field_type =~ /bit/i
+          super
+        end
+
+        def extract_limit(sql_type)
+          case sql_type
+          when /blob|text/i
+            case sql_type
+            when /tiny/i
+              255
+            when /medium/i
+              16777215
+            when /long/i
+              2147483647 # mysql only allows 2^31-1, not 2^32-1, somewhat inconsistently with the tiny/medium/normal cases
+            else
+              super # we could return 65535 here, but we leave it undecorated by default
+            end
+          when /^bigint/i;    8
+          when /^int/i;       4
+          when /^mediumint/i; 3
+          when /^smallint/i;  2
+          when /^tinyint/i;   1
+          else
+            super
+          end
+        end
+
+        # MySQL misreports NOT NULL column default when none is given.
+        # We can't detect this for columns which may have a legitimate ''
+        # default (string) but we can for others (integer, datetime, boolean,
+        # and the rest).
+        #
+        # Test whether the column has default '', is not null, and is not
+        # a type allowing default ''.
+        def missing_default_forged_as_empty_string?(default)
+          type != :string && !null && default == ''
+        end
+    end
+
+    class Mysql2Adapter < AbstractAdapter
+      cattr_accessor :emulate_booleans
+      self.emulate_booleans = true
+
+      ADAPTER_NAME = 'Mysql2'
+      PRIMARY = "PRIMARY"
+
+      LOST_CONNECTION_ERROR_MESSAGES = [
+        "Server shutdown in progress",
+        "Broken pipe",
+        "Lost connection to MySQL server during query",
+        "MySQL server has gone away" ]
+
+      QUOTED_TRUE, QUOTED_FALSE = '1', '0'
+
+      NATIVE_DATABASE_TYPES = {
+        :primary_key => "int(11) DEFAULT NULL auto_increment PRIMARY KEY",
+        :string      => { :name => "varchar", :limit => 255 },
+        :text        => { :name => "text" },
+        :integer     => { :name => "int", :limit => 4 },
+        :float       => { :name => "float" },
+        :decimal     => { :name => "decimal" },
+        :datetime    => { :name => "datetime" },
+        :timestamp   => { :name => "datetime" },
+        :time        => { :name => "time" },
+        :date        => { :name => "date" },
+        :binary      => { :name => "blob" },
+        :boolean     => { :name => "tinyint", :limit => 1 }
+      }
+
+      def initialize(connection, logger, connection_options, config)
+        super(connection, logger)
+        @connection_options, @config = connection_options, config
+        @quoted_column_names, @quoted_table_names = {}, {}
+        configure_connection
+      end
+
+      def adapter_name
+        ADAPTER_NAME
+      end
+
+      def supports_migrations?
+        true
+      end
+
+      def supports_primary_key?
+        true
+      end
+
+      def supports_savepoints?
+        true
+      end
+
+      def native_database_types
+        NATIVE_DATABASE_TYPES
+      end
+
+      # QUOTING ==================================================
+
+      def quote(value, column = nil)
+        if value.kind_of?(String) && column && column.type == :binary && column.class.respond_to?(:string_to_binary)
+          s = column.class.string_to_binary(value).unpack("H*")[0]
+          "x'#{s}'"
+        elsif value.kind_of?(BigDecimal)
+          value.to_s("F")
+        else
+          super
+        end
+      end
+
+      def quote_column_name(name) #:nodoc:
+        @quoted_column_names[name] ||= "`#{name}`"
+      end
+
+      def quote_table_name(name) #:nodoc:
+        @quoted_table_names[name] ||= quote_column_name(name).gsub('.', '`.`')
+      end
+
+      def quote_string(string)
+        @connection.escape(string)
+      end
+
+      def quoted_true
+        QUOTED_TRUE
+      end
+
+      def quoted_false
+        QUOTED_FALSE
+      end
+
+      # REFERENTIAL INTEGRITY ====================================
+
+      def disable_referential_integrity(&block) #:nodoc:
+        old = select_value("SELECT @@FOREIGN_KEY_CHECKS")
+
+        begin
+          update("SET FOREIGN_KEY_CHECKS = 0")
+          yield
+        ensure
+          update("SET FOREIGN_KEY_CHECKS = #{old}")
+        end
+      end
+
+      # CONNECTION MANAGEMENT ====================================
+
+      def active?
+        return false unless @connection
+        @connection.query 'select 1'
+        true
+      rescue Mysql2::Error
+        false
+      end
+
+      def reconnect!
+        disconnect!
+        connect
+      end
+
+      # this is set to true in 2.3, but we don't want it to be
+      def requires_reloading?
+        false
+      end
+
+      def disconnect!
+        unless @connection.nil?
+          @connection.close
+          @connection = nil
+        end
+      end
+
+      def reset!
+        disconnect!
+        connect
+      end
+
+      # DATABASE STATEMENTS ======================================
+
+      # FIXME: re-enable the following once a "better" query_cache solution is in core
+      #
+      # The overrides below perform much better than the originals in AbstractAdapter
+      # because we're able to take advantage of mysql2's lazy-loading capabilities
+      #
+      # # Returns a record hash with the column names as keys and column values
+      # # as values.
+      # def select_one(sql, name = nil)
+      #   result = execute(sql, name)
+      #   result.each(:as => :hash) do |r|
+      #     return r
+      #   end
+      # end
+      # 
+      # # Returns a single value from a record
+      # def select_value(sql, name = nil)
+      #   result = execute(sql, name)
+      #   if first = result.first
+      #     first.first
+      #   end
+      # end
+      # 
+      # # Returns an array of the values of the first column in a select:
+      # #   select_values("SELECT id FROM companies LIMIT 3") => [1,2,3]
+      # def select_values(sql, name = nil)
+      #   execute(sql, name).map { |row| row.first }
+      # end
+
+      # Returns an array of arrays containing the field values.
+      # Order is the same as that returned by +columns+.
+      def select_rows(sql, name = nil)
+        execute(sql, name).to_a
+      end
+
+      # Executes the SQL statement in the context of this connection.
+      def execute(sql, name = nil)
+        # make sure we carry over any changes to ActiveRecord::Base.default_timezone that have been
+        # made since we established the connection
+        @connection.query_options[:database_timezone] = ActiveRecord::Base.default_timezone
+        if name == :skip_logging
+          @connection.query(sql)
+        else
+          log(sql, name) { @connection.query(sql) }
+        end
+      rescue ActiveRecord::StatementInvalid => exception
+        if exception.message.split(":").first =~ /Packets out of order/
+          raise ActiveRecord::StatementInvalid, "'Packets out of order' error was received from the database. Please update your mysql bindings (gem install mysql) and read http://dev.mysql.com/doc/mysql/en/password-hashing.html for more information.  If you're on Windows, use the Instant Rails installer to get the updated mysql bindings."
+        else
+          raise
+        end
+      end
+
+      def insert_sql(sql, name = nil, pk = nil, id_value = nil, sequence_name = nil)
+        super
+        id_value || @connection.last_id
+      end
+      alias :create :insert_sql
+
+      def update_sql(sql, name = nil)
+        super
+        @connection.affected_rows
+      end
+
+      def begin_db_transaction
+        execute "BEGIN"
+      rescue Exception
+        # Transactions aren't supported
+      end
+
+      def commit_db_transaction
+        execute "COMMIT"
+      rescue Exception
+        # Transactions aren't supported
+      end
+
+      def rollback_db_transaction
+        execute "ROLLBACK"
+      rescue Exception
+        # Transactions aren't supported
+      end
+
+      def create_savepoint
+        execute("SAVEPOINT #{current_savepoint_name}")
+      end
+
+      def rollback_to_savepoint
+        execute("ROLLBACK TO SAVEPOINT #{current_savepoint_name}")
+      end
+
+      def release_savepoint
+        execute("RELEASE SAVEPOINT #{current_savepoint_name}")
+      end
+
+      def add_limit_offset!(sql, options)
+        limit, offset = options[:limit], options[:offset]
+        if limit && offset
+          sql << " LIMIT #{offset.to_i}, #{sanitize_limit(limit)}"
+        elsif limit
+          sql << " LIMIT #{sanitize_limit(limit)}"
+        elsif offset
+          sql << " OFFSET #{offset.to_i}"
+        end
+        sql
+      end
+
+      # SCHEMA STATEMENTS ========================================
+
+      def structure_dump
+        if supports_views?
+          sql = "SHOW FULL TABLES WHERE Table_type = 'BASE TABLE'"
+        else
+          sql = "SHOW TABLES"
+        end
+
+        select_all(sql).inject("") do |structure, table|
+          table.delete('Table_type')
+          structure += select_one("SHOW CREATE TABLE #{quote_table_name(table.to_a.first.last)}")["Create Table"] + ";\n\n"
+        end
+      end
+
+      def recreate_database(name, options = {})
+        drop_database(name)
+        create_database(name, options)
+      end
+
+      # Create a new MySQL database with optional <tt>:charset</tt> and <tt>:collation</tt>.
+      # Charset defaults to utf8.
+      #
+      # Example:
+      #   create_database 'charset_test', :charset => 'latin1', :collation => 'latin1_bin'
+      #   create_database 'matt_development'
+      #   create_database 'matt_development', :charset => :big5
+      def create_database(name, options = {})
+        if options[:collation]
+          execute "CREATE DATABASE `#{name}` DEFAULT CHARACTER SET `#{options[:charset] || 'utf8'}` COLLATE `#{options[:collation]}`"
+        else
+          execute "CREATE DATABASE `#{name}` DEFAULT CHARACTER SET `#{options[:charset] || 'utf8'}`"
+        end
+      end
+
+      def drop_database(name) #:nodoc:
+        execute "DROP DATABASE IF EXISTS `#{name}`"
+      end
+
+      def current_database
+        select_value 'SELECT DATABASE() as db'
+      end
+
+      # Returns the database character set.
+      def charset
+        show_variable 'character_set_database'
+      end
+
+      # Returns the database collation strategy.
+      def collation
+        show_variable 'collation_database'
+      end
+
+      def tables(name = nil)
+        tables = []
+        execute("SHOW TABLES", name).each do |field|
+          tables << field.first
+        end
+        tables
+      end
+
+      def drop_table(table_name, options = {})
+        super(table_name, options)
+      end
+
+      def indexes(table_name, name = nil)
+        indexes = []
+        current_index = nil
+        result = execute("SHOW KEYS FROM #{quote_table_name(table_name)}", name)
+        result.each(:symbolize_keys => true, :as => :hash) do |row|
+          if current_index != row[:Key_name]
+            next if row[:Key_name] == PRIMARY # skip the primary key
+            current_index = row[:Key_name]
+            indexes << IndexDefinition.new(row[:Table], row[:Key_name], row[:Non_unique] == 0, [])
+          end
+
+          indexes.last.columns << row[:Column_name]
+        end
+        indexes
+      end
+
+      def columns(table_name, name = nil)
+        sql = "SHOW FIELDS FROM #{quote_table_name(table_name)}"
+        columns = []
+        result = execute(sql, :skip_logging)
+        result.each(:symbolize_keys => true, :as => :hash) { |field|
+          columns << Mysql2Column.new(field[:Field], field[:Default], field[:Type], field[:Null] == "YES")
+        }
+        columns
+      end
+
+      def create_table(table_name, options = {})
+        super(table_name, options.reverse_merge(:options => "ENGINE=InnoDB"))
+      end
+
+      def rename_table(table_name, new_name)
+        execute "RENAME TABLE #{quote_table_name(table_name)} TO #{quote_table_name(new_name)}"
+      end
+
+      def add_column(table_name, column_name, type, options = {})
+        add_column_sql = "ALTER TABLE #{quote_table_name(table_name)} ADD #{quote_column_name(column_name)} #{type_to_sql(type, options[:limit], options[:precision], options[:scale])}"
+        add_column_options!(add_column_sql, options)
+        add_column_position!(add_column_sql, options)
+        execute(add_column_sql)
+      end
+
+      def change_column_default(table_name, column_name, default)
+        column = column_for(table_name, column_name)
+        change_column table_name, column_name, column.sql_type, :default => default
+      end
+
+      def change_column_null(table_name, column_name, null, default = nil)
+        column = column_for(table_name, column_name)
+
+        unless null || default.nil?
+          execute("UPDATE #{quote_table_name(table_name)} SET #{quote_column_name(column_name)}=#{quote(default)} WHERE #{quote_column_name(column_name)} IS NULL")
+        end
+
+        change_column table_name, column_name, column.sql_type, :null => null
+      end
+
+      def change_column(table_name, column_name, type, options = {})
+        column = column_for(table_name, column_name)
+
+        unless options_include_default?(options)
+          options[:default] = column.default
+        end
+
+        unless options.has_key?(:null)
+          options[:null] = column.null
+        end
+
+        change_column_sql = "ALTER TABLE #{quote_table_name(table_name)} CHANGE #{quote_column_name(column_name)} #{quote_column_name(column_name)} #{type_to_sql(type, options[:limit], options[:precision], options[:scale])}"
+        add_column_options!(change_column_sql, options)
+        add_column_position!(change_column_sql, options)
+        execute(change_column_sql)
+      end
+
+      def rename_column(table_name, column_name, new_column_name)
+        options = {}
+        if column = columns(table_name).find { |c| c.name == column_name.to_s }
+          options[:default] = column.default
+          options[:null] = column.null
+        else
+          raise ActiveRecordError, "No such column: #{table_name}.#{column_name}"
+        end
+        current_type = select_one("SHOW COLUMNS FROM #{quote_table_name(table_name)} LIKE '#{column_name}'")["Type"]
+        rename_column_sql = "ALTER TABLE #{quote_table_name(table_name)} CHANGE #{quote_column_name(column_name)} #{quote_column_name(new_column_name)} #{current_type}"
+        add_column_options!(rename_column_sql, options)
+        execute(rename_column_sql)
+      end
+
+      # Maps logical Rails types to MySQL-specific data types.
+      def type_to_sql(type, limit = nil, precision = nil, scale = nil)
+        return super unless type.to_s == 'integer'
+
+        case limit
+        when 1; 'tinyint'
+        when 2; 'smallint'
+        when 3; 'mediumint'
+        when nil, 4, 11; 'int(11)'  # compatibility with MySQL default
+        when 5..8; 'bigint'
+        else raise(ActiveRecordError, "No integer type has byte size #{limit}")
+        end
+      end
+
+      def add_column_position!(sql, options)
+        if options[:first]
+          sql << " FIRST"
+        elsif options[:after]
+          sql << " AFTER #{quote_column_name(options[:after])}"
+        end
+      end
+
+      def show_variable(name)
+        variables = select_all("SHOW VARIABLES LIKE '#{name}'")
+        variables.first['Value'] unless variables.empty?
+      end
+
+      def pk_and_sequence_for(table)
+        keys = []
+        result = execute("describe #{quote_table_name(table)}")
+        result.each(:symbolize_keys => true, :as => :hash) do |row|
+          keys << row[:Field] if row[:Key] == "PRI"
+        end
+        keys.length == 1 ? [keys.first, nil] : nil
+      end
+
+      # Returns just a table's primary key
+      def primary_key(table)
+        pk_and_sequence = pk_and_sequence_for(table)
+        pk_and_sequence && pk_and_sequence.first
+      end
+
+      def case_sensitive_equality_operator
+        "= BINARY"
+      end
+
+      def limited_update_conditions(where_sql, quoted_table_name, quoted_primary_key)
+        where_sql
+      end
+
+      protected
+        def quoted_columns_for_index(column_names, options = {})
+          length = options[:length] if options.is_a?(Hash)
+
+          quoted_column_names = case length
+          when Hash
+            column_names.map {|name| length[name] ? "#{quote_column_name(name)}(#{length[name]})" : quote_column_name(name) }
+          when Fixnum
+            column_names.map {|name| "#{quote_column_name(name)}(#{length})"}
+          else
+            column_names.map {|name| quote_column_name(name) }
+          end
+        end
+
+        def translate_exception(exception, message)
+          return super unless exception.respond_to?(:error_number)
+
+          case exception.error_number
+          when 1062
+            RecordNotUnique.new(message, exception)
+          when 1452
+            InvalidForeignKey.new(message, exception)
+          else
+            super
+          end
+        end
+
+      private
+        def connect
+          @connection = Mysql2::Client.new(@config)
+          configure_connection
+        end
+
+        def configure_connection
+          @connection.query_options.merge!(:as => :array)
+          encoding = @config[:encoding]
+          execute("SET NAMES '#{encoding}'", :skip_logging) if encoding
+
+          # By default, MySQL 'where id is null' selects the last inserted id.
+          # Turn this off. http://dev.rubyonrails.org/ticket/6778
+          execute("SET SQL_AUTO_IS_NULL=0", :skip_logging)
+        end
+
+        # Returns an array of record hashes with the column names as keys and
+        # column values as values.
+        def select(sql, name = nil)
+          execute(sql, name).each(:as => :hash)
+        end
+
+        def supports_views?
+          version[0] >= 5
+        end
+
+        def version
+          @version ||= @connection.info[:version].scan(/^(\d+)\.(\d+)\.(\d+)/).flatten.map { |v| v.to_i }
+        end
+
+        def column_for(table_name, column_name)
+          unless column = columns(table_name).find { |c| c.name == column_name.to_s }
+            raise "No such column: #{table_name}.#{column_name}"
+          end
+          column
+        end
+    end
+  end
+end

activerecord/test/cases/adapters/mysql/active_schema_test.rb

@@ -42,7 +42,7 @@ class ActiveSchemaTest < ActiveRecord::TestCase
     assert_equal "DROP TABLE `people`", drop_table(:people)
   end
 
-  if current_adapter?(:MysqlAdapter)
+  if current_adapter?(:MysqlAdapter) or current_adapter?(:Mysql2Adapter)
     def test_create_mysql_database_with_encoding
       assert_equal "CREATE DATABASE `matt` DEFAULT CHARACTER SET `utf8`", create_database(:matt)
       assert_equal "CREATE DATABASE `aimonetti` DEFAULT CHARACTER SET `latin1`", create_database(:aimonetti, {:charset => 'latin1'})

activerecord/test/cases/adapters/mysql2/active_schema_test.rb

@@ -0,0 +1,125 @@
+require "cases/helper"
+
+class ActiveSchemaTest < ActiveRecord::TestCase
+  def setup
+    ActiveRecord::ConnectionAdapters::Mysql2Adapter.class_eval do
+      alias_method :execute_without_stub, :execute
+      remove_method :execute
+      def execute(sql, name = nil) return sql end
+    end
+  end
+
+  def teardown
+    ActiveRecord::ConnectionAdapters::Mysql2Adapter.class_eval do
+      remove_method :execute
+      alias_method :execute, :execute_without_stub
+    end
+  end
+
+  def test_add_index
+    # add_index calls index_name_exists? which can't work since execute is stubbed
+    ActiveRecord::ConnectionAdapters::Mysql2Adapter.send(:define_method, :index_name_exists?) do |*|
+      false
+    end
+    expected = "CREATE  INDEX `index_people_on_last_name` ON `people` (`last_name`)"
+    assert_equal expected, add_index(:people, :last_name, :length => nil)
+
+    expected = "CREATE  INDEX `index_people_on_last_name` ON `people` (`last_name`(10))"
+    assert_equal expected, add_index(:people, :last_name, :length => 10)
+
+    expected = "CREATE  INDEX `index_people_on_last_name_and_first_name` ON `people` (`last_name`(15), `first_name`(15))"
+    assert_equal expected, add_index(:people, [:last_name, :first_name], :length => 15)
+
+    expected = "CREATE  INDEX `index_people_on_last_name_and_first_name` ON `people` (`last_name`(15), `first_name`)"
+    assert_equal expected, add_index(:people, [:last_name, :first_name], :length => {:last_name => 15})
+
+    expected = "CREATE  INDEX `index_people_on_last_name_and_first_name` ON `people` (`last_name`(15), `first_name`(10))"
+    assert_equal expected, add_index(:people, [:last_name, :first_name], :length => {:last_name => 15, :first_name => 10})
+    ActiveRecord::ConnectionAdapters::Mysql2Adapter.send(:remove_method, :index_name_exists?)
+  end
+
+  def test_drop_table
+    assert_equal "DROP TABLE `people`", drop_table(:people)
+  end
+
+  if current_adapter?(:Mysql2Adapter)
+    def test_create_mysql_database_with_encoding
+      assert_equal "CREATE DATABASE `matt` DEFAULT CHARACTER SET `utf8`", create_database(:matt)
+      assert_equal "CREATE DATABASE `aimonetti` DEFAULT CHARACTER SET `latin1`", create_database(:aimonetti, {:charset => 'latin1'})
+      assert_equal "CREATE DATABASE `matt_aimonetti` DEFAULT CHARACTER SET `big5` COLLATE `big5_chinese_ci`", create_database(:matt_aimonetti, {:charset => :big5, :collation => :big5_chinese_ci})
+    end
+
+    def test_recreate_mysql_database_with_encoding
+      create_database(:luca, {:charset => 'latin1'})
+      assert_equal "CREATE DATABASE `luca` DEFAULT CHARACTER SET `latin1`", recreate_database(:luca, {:charset => 'latin1'})
+    end
+  end
+
+  def test_add_column
+    assert_equal "ALTER TABLE `people` ADD `last_name` varchar(255)", add_column(:people, :last_name, :string)
+  end
+
+  def test_add_column_with_limit
+    assert_equal "ALTER TABLE `people` ADD `key` varchar(32)", add_column(:people, :key, :string, :limit => 32)
+  end
+
+  def test_drop_table_with_specific_database
+    assert_equal "DROP TABLE `otherdb`.`people`", drop_table('otherdb.people')
+  end
+
+  def test_add_timestamps
+    with_real_execute do
+      begin
+        ActiveRecord::Base.connection.create_table :delete_me do |t|
+        end
+        ActiveRecord::Base.connection.add_timestamps :delete_me
+        assert column_present?('delete_me', 'updated_at', 'datetime')
+        assert column_present?('delete_me', 'created_at', 'datetime')
+      ensure
+        ActiveRecord::Base.connection.drop_table :delete_me rescue nil
+      end
+    end
+  end
+
+  def test_remove_timestamps
+    with_real_execute do
+      begin
+        ActiveRecord::Base.connection.create_table :delete_me do |t|
+          t.timestamps
+        end
+        ActiveRecord::Base.connection.remove_timestamps :delete_me
+        assert !column_present?('delete_me', 'updated_at', 'datetime')
+        assert !column_present?('delete_me', 'created_at', 'datetime')
+      ensure
+        ActiveRecord::Base.connection.drop_table :delete_me rescue nil
+      end
+    end
+  end
+
+  private
+    def with_real_execute
+      #we need to actually modify some data, so we make execute point to the original method
+      ActiveRecord::ConnectionAdapters::Mysql2Adapter.class_eval do
+        alias_method :execute_with_stub, :execute
+        remove_method :execute
+        alias_method :execute, :execute_without_stub
+      end
+      yield
+    ensure
+      #before finishing, we restore the alias to the mock-up method
+      ActiveRecord::ConnectionAdapters::Mysql2Adapter.class_eval do
+        remove_method :execute
+        alias_method :execute, :execute_with_stub
+      end
+    end
+
+
+    def method_missing(method_symbol, *arguments)
+      ActiveRecord::Base.connection.send(method_symbol, *arguments)
+    end
+
+    def column_present?(table_name, column_name, type)
+      results = ActiveRecord::Base.connection.select_all("SHOW FIELDS FROM #{table_name} LIKE '#{column_name}'")
+      results.first && results.first['Type'] == type
+    end
+end

activerecord/test/cases/adapters/mysql2/connection_test.rb

@@ -0,0 +1,42 @@
+require "cases/helper"
+
+class MysqlConnectionTest < ActiveRecord::TestCase
+  def setup
+    super
+    @connection = ActiveRecord::Base.connection
+  end
+
+  def test_no_automatic_reconnection_after_timeout
+    assert @connection.active?
+    @connection.update('set @@wait_timeout=1')
+    sleep 2
+    assert !@connection.active?
+  end
+
+  def test_successful_reconnection_after_timeout_with_manual_reconnect
+    assert @connection.active?
+    @connection.update('set @@wait_timeout=1')
+    sleep 2
+    @connection.reconnect!
+    assert @connection.active?
+  end
+
+  def test_successful_reconnection_after_timeout_with_verify
+    assert @connection.active?
+    @connection.update('set @@wait_timeout=1')
+    sleep 2
+    @connection.verify!
+    assert @connection.active?
+ end
+
+  private
+
+  def run_without_connection
+    original_connection = ActiveRecord::Base.remove_connection
+    begin
+      yield original_connection
+    ensure
+      ActiveRecord::Base.establish_connection(original_connection)
+    end
+  end
+end

activerecord/test/cases/adapters/mysql2/reserved_word_test.rb

@@ -0,0 +1,176 @@
+require "cases/helper"
+
+class Group < ActiveRecord::Base
+  Group.table_name = 'group'
+  belongs_to :select, :class_name => 'Select'
+  has_one :values
+end
+
+class Select < ActiveRecord::Base
+  Select.table_name = 'select'
+  has_many :groups
+end
+
+class Values < ActiveRecord::Base
+  Values.table_name = 'values'
+end
+
+class Distinct < ActiveRecord::Base
+  Distinct.table_name = 'distinct'
+  has_and_belongs_to_many :selects
+  has_many :values, :through => :groups
+end
+
+# a suite of tests to ensure the ConnectionAdapters#MysqlAdapter can handle tables with
+# reserved word names (ie: group, order, values, etc...)
+class MysqlReservedWordTest < ActiveRecord::TestCase
+  def setup
+    @connection = ActiveRecord::Base.connection
+
+    # we call execute directly here (and do similar below) because ActiveRecord::Base#create_table()
+    # will fail with these table names if these test cases fail
+
+    create_tables_directly 'group'=>'id int auto_increment primary key, `order` varchar(255), select_id int',
+      'select'=>'id int auto_increment primary key',
+      'values'=>'id int auto_increment primary key, group_id int',
+      'distinct'=>'id int auto_increment primary key',
+      'distincts_selects'=>'distinct_id int, select_id int'
+  end
+
+  def teardown
+    drop_tables_directly ['group', 'select', 'values', 'distinct', 'distincts_selects', 'order']
+  end
+
+  # create tables with reserved-word names and columns
+  def test_create_tables
+    assert_nothing_raised {
+      @connection.create_table :order do |t|
+        t.column :group, :string
+      end
+    }
+  end
+
+  # rename tables with reserved-word names
+  def test_rename_tables
+    assert_nothing_raised { @connection.rename_table(:group, :order) }
+  end
+
+  # alter column with a reserved-word name in a table with a reserved-word name
+  def test_change_columns
+    assert_nothing_raised { @connection.change_column_default(:group, :order, 'whatever') }
+    #the quoting here will reveal any double quoting issues in change_column's interaction with the column method in the adapter
+    assert_nothing_raised { @connection.change_column('group', 'order', :Int, :default => 0) }
+    assert_nothing_raised { @connection.rename_column(:group, :order, :values) }
+  end
+
+  # dump structure of table with reserved word name
+  def test_structure_dump
+    assert_nothing_raised { @connection.structure_dump  }
+  end
+
+  # introspect table with reserved word name
+  def test_introspect
+    assert_nothing_raised { @connection.columns(:group) }
+    assert_nothing_raised { @connection.indexes(:group) }
+  end
+
+  #fixtures
+  self.use_instantiated_fixtures = true
+  self.use_transactional_fixtures = false
+
+  #fixtures :group
+
+  def test_fixtures
+    f = create_test_fixtures :select, :distinct, :group, :values, :distincts_selects
+
+    assert_nothing_raised {
+      f.each do |x|
+        x.delete_existing_fixtures
+      end
+    }
+
+    assert_nothing_raised {
+      f.each do |x|
+        x.insert_fixtures
+      end
+    }
+  end
+
+  #activerecord model class with reserved-word table name
+  def test_activerecord_model
+    create_test_fixtures :select, :distinct, :group, :values, :distincts_selects
+    x = nil
+    assert_nothing_raised { x = Group.new }
+    x.order = 'x'
+    assert_nothing_raised { x.save }
+    x.order = 'y'
+    assert_nothing_raised { x.save }
+    assert_nothing_raised { y = Group.find_by_order('y') }
+    assert_nothing_raised { y = Group.find(1) }
+    x = Group.find(1)
+  end
+
+  # has_one association with reserved-word table name
+  def test_has_one_associations
+    create_test_fixtures :select, :distinct, :group, :values, :distincts_selects
+    v = nil
+    assert_nothing_raised { v = Group.find(1).values }
+    assert_equal 2, v.id
+  end
+
+  # belongs_to association with reserved-word table name
+  def test_belongs_to_associations
+    create_test_fixtures :select, :distinct, :group, :values, :distincts_selects
+    gs = nil
+    assert_nothing_raised { gs = Select.find(2).groups }
+    assert_equal gs.length, 2
+    assert(gs.collect{|x| x.id}.sort == [2, 3])
+  end
+
+  # has_and_belongs_to_many with reserved-word table name
+  def test_has_and_belongs_to_many
+    create_test_fixtures :select, :distinct, :group, :values, :distincts_selects
+    s = nil
+    assert_nothing_raised { s = Distinct.find(1).selects }
+    assert_equal s.length, 2
+    assert(s.collect{|x|x.id}.sort == [1, 2])
+  end
+
+  # activerecord model introspection with reserved-word table and column names
+  def test_activerecord_introspection
+    assert_nothing_raised { Group.table_exists? }
+    assert_nothing_raised { Group.columns }
+  end
+
+  # Calculations
+  def test_calculations_work_with_reserved_words
+    assert_nothing_raised { Group.count }
+  end
+
+  def test_associations_work_with_reserved_words
+    assert_nothing_raised { Select.find(:all, :include => [:groups]) }
+  end
+
+  #the following functions were added to DRY test cases
+
+  private
+  # custom fixture loader, uses Fixtures#create_fixtures and appends base_path to the current file's path
+  def create_test_fixtures(*fixture_names)
+    Fixtures.create_fixtures(FIXTURES_ROOT + "/reserved_words", fixture_names)
+  end
+
+  # custom drop table, uses execute on connection to drop a table if it exists. note: escapes table_name
+  def drop_tables_directly(table_names, connection = @connection)
+    table_names.each do |name|
+      connection.execute("DROP TABLE IF EXISTS `#{name}`")
+    end
+  end
+
+  # custom create table, uses execute on connection to create a table, note: escapes table_name, does NOT escape columns
+  def create_tables_directly (tables, connection = @connection)
+    tables.each do |table_name, column_properties|
+      connection.execute("CREATE TABLE `#{table_name}` ( #{column_properties} )")
+    end
+  end
+
+end

activerecord/test/cases/associations/belongs_to_associations_test.rb

@@ -32,7 +32,7 @@ class BelongsToAssociationsTest < ActiveRecord::TestCase
 
   def test_belongs_to_with_primary_key_joins_on_correct_column
     sql = Client.joins(:firm_with_primary_key).to_sql
-    if current_adapter?(:MysqlAdapter)
+    if current_adapter?(:MysqlAdapter) or current_adapter?(:Mysql2Adapter)
       assert_no_match(/`firm_with_primary_keys_companies`\.`id`/, sql)
       assert_match(/`firm_with_primary_keys_companies`\.`name`/, sql)
     elsif current_adapter?(:OracleAdapter)

activerecord/test/cases/associations/has_and_belongs_to_many_associations_test.rb

@@ -109,8 +109,13 @@ class HasAndBelongsToManyAssociationsTest < ActiveRecord::TestCase
     record = con.select_rows(sql).last
     assert_not_nil record[2]
     assert_not_nil record[3]
-    assert_match %r{\d{4}-\d{2}-\d{2} \d{2}:\d{2}:\d{2}}, record[2]
-    assert_match %r{\d{4}-\d{2}-\d{2} \d{2}:\d{2}:\d{2}}, record[3]
+    if current_adapter?(:Mysql2Adapter)
+      assert_match %r{\d{4}-\d{2}-\d{2} \d{2}:\d{2}:\d{2}}, record[2].to_s(:db)
+      assert_match %r{\d{4}-\d{2}-\d{2} \d{2}:\d{2}:\d{2}}, record[3].to_s(:db)
+    else
+      assert_match %r{\d{4}-\d{2}-\d{2} \d{2}:\d{2}:\d{2}}, record[2]
+      assert_match %r{\d{4}-\d{2}-\d{2} \d{2}:\d{2}:\d{2}}, record[3]
+    end
   end
 
   def test_should_record_timestamp_for_join_table_only_if_timestamp_should_be_recorded

activerecord/test/cases/attribute_methods_test.rb

@@ -106,21 +106,23 @@ class AttributeMethodsTest < ActiveRecord::TestCase
     end
   end
 
-  def test_read_attributes_before_type_cast_on_datetime
-    developer = Developer.find(:first)
-    # Oracle adapter returns Time before type cast
-    unless current_adapter?(:OracleAdapter)
-      assert_equal developer.created_at.to_s(:db) , developer.attributes_before_type_cast["created_at"]
-    else
-      assert_equal developer.created_at.to_s(:db) , developer.attributes_before_type_cast["created_at"].to_s(:db)
+  unless current_adapter?(:Mysql2Adapter)
+    def test_read_attributes_before_type_cast_on_datetime
+      developer = Developer.find(:first)
+      # Oracle adapter returns Time before type cast
+      unless current_adapter?(:OracleAdapter)
+        assert_equal developer.created_at.to_s(:db) , developer.attributes_before_type_cast["created_at"]
+      else
+        assert_equal developer.created_at.to_s(:db) , developer.attributes_before_type_cast["created_at"].to_s(:db)
 
-      developer.created_at = "345643456"
-      assert_equal developer.created_at_before_type_cast, "345643456"
-      assert_equal developer.created_at, nil
+        developer.created_at = "345643456"
+        assert_equal developer.created_at_before_type_cast, "345643456"
+        assert_equal developer.created_at, nil
 
-      developer.created_at = "2010-03-21T21:23:32+01:00"
-      assert_equal developer.created_at_before_type_cast, "2010-03-21T21:23:32+01:00"
-      assert_equal developer.created_at, Time.parse("2010-03-21T21:23:32+01:00")
+        developer.created_at = "2010-03-21T21:23:32+01:00"
+        assert_equal developer.created_at_before_type_cast, "2010-03-21T21:23:32+01:00"
+        assert_equal developer.created_at, Time.parse("2010-03-21T21:23:32+01:00")
+      end
     end
   end
 

activerecord/test/cases/base_test.rb

@@ -52,6 +52,264 @@ class BasicsTest < ActiveRecord::TestCase
     assert Topic.table_exists?
   end
 
+  def test_set_attributes
+    topic = Topic.find(1)
+    topic.attributes = { "title" => "Budget", "author_name" => "Jason" }
+    topic.save
+    assert_equal("Budget", topic.title)
+    assert_equal("Jason", topic.author_name)
+    assert_equal(topics(:first).author_email_address, Topic.find(1).author_email_address)
+  end
+
+  def test_set_attributes_without_hash
+    topic = Topic.new
+    assert_nothing_raised { topic.attributes = '' }
+  end
+
+  def test_integers_as_nil
+    test = AutoId.create('value' => '')
+    assert_nil AutoId.find(test.id).value
+  end
+
+  def test_set_attributes_with_block
+    topic = Topic.new do |t|
+      t.title       = "Budget"
+      t.author_name = "Jason"
+    end
+
+    assert_equal("Budget", topic.title)
+    assert_equal("Jason", topic.author_name)
+  end
+
+  def test_respond_to?
+    topic = Topic.find(1)
+    assert_respond_to topic, "title"
+    assert_respond_to topic, "title?"
+    assert_respond_to topic, "title="
+    assert_respond_to topic, :title
+    assert_respond_to topic, :title?
+    assert_respond_to topic, :title=
+    assert_respond_to topic, "author_name"
+    assert_respond_to topic, "attribute_names"
+    assert !topic.respond_to?("nothingness")
+    assert !topic.respond_to?(:nothingness)
+  end
+
+  def test_array_content
+    topic = Topic.new
+    topic.content = %w( one two three )
+    topic.save
+
+    assert_equal(%w( one two three ), Topic.find(topic.id).content)
+  end
+
+  def test_read_attributes_before_type_cast
+    category = Category.new({:name=>"Test categoty", :type => nil})
+    category_attrs = {"name"=>"Test categoty", "type" => nil, "categorizations_count" => nil}
+    assert_equal category_attrs , category.attributes_before_type_cast
+  end
+
+  if current_adapter?(:MysqlAdapter)
+    def test_read_attributes_before_type_cast_on_boolean
+      bool = Booleantest.create({ "value" => false })
+      assert_equal "0", bool.reload.attributes_before_type_cast["value"]
+    end
+  end
+
+  if current_adapter?(:Mysql2Adapter)
+    def test_read_attributes_before_type_cast_on_boolean
+      bool = Booleantest.create({ "value" => false })
+      assert_equal 0, bool.reload.attributes_before_type_cast["value"]
+    end
+  end
+
+  unless current_adapter?(:Mysql2Adapter)
+    def test_read_attributes_before_type_cast_on_datetime
+      developer = Developer.find(:first)
+      # Oracle adapter returns Time before type cast
+      if current_adapter?(:OracleAdapter)
+        assert_equal developer.created_at.to_s(:db) , developer.attributes_before_type_cast["created_at"].to_s(:db)
+
+        developer.created_at = "345643456"
+        assert_equal developer.created_at_before_type_cast, "345643456"
+        assert_equal developer.created_at, nil
+
+        developer.created_at = "2010-03-21T21:23:32+01:00"
+        assert_equal developer.created_at_before_type_cast, "2010-03-21T21:23:32+01:00"
+        assert_equal developer.created_at, Time.parse("2010-03-21T21:23:32+01:00")
+        assert_equal developer.created_at.to_s(:db) , developer.attributes_before_type_cast["created_at"].to_s(:db)
+      else
+        assert_equal developer.created_at.to_s(:db) , developer.attributes_before_type_cast["created_at"]
+      end
+    end
+  end
+
+  def test_hash_content
+    topic = Topic.new
+    topic.content = { "one" => 1, "two" => 2 }
+    topic.save
+
+    assert_equal 2, Topic.find(topic.id).content["two"]
+
+    topic.content_will_change!
+    topic.content["three"] = 3
+    topic.save
+
+    assert_equal 3, Topic.find(topic.id).content["three"]
+  end
+
+  def test_update_array_content
+    topic = Topic.new
+    topic.content = %w( one two three )
+
+    topic.content.push "four"
+    assert_equal(%w( one two three four ), topic.content)
+
+    topic.save
+
+    topic = Topic.find(topic.id)
+    topic.content << "five"
+    assert_equal(%w( one two three four five ), topic.content)
+  end
+
+  def test_case_sensitive_attributes_hash
+    # DB2 is not case-sensitive
+    return true if current_adapter?(:DB2Adapter)
+
+    assert_equal @loaded_fixtures['computers']['workstation'].to_hash, Computer.find(:first).attributes
+  end
+
+  def test_hashes_not_mangled
+    new_topic = { :title => "New Topic" }
+    new_topic_values = { :title => "AnotherTopic" }
+
+    topic = Topic.new(new_topic)
+    assert_equal new_topic[:title], topic.title
+
+    topic.attributes= new_topic_values
+    assert_equal new_topic_values[:title], topic.title
+  end
+
+  def test_create_through_factory
+    topic = Topic.create("title" => "New Topic")
+    topicReloaded = Topic.find(topic.id)
+    assert_equal(topic, topicReloaded)
+  end
+
+  def test_write_attribute
+    topic = Topic.new
+    topic.send(:write_attribute, :title, "Still another topic")
+    assert_equal "Still another topic", topic.title
+
+    topic.send(:write_attribute, "title", "Still another topic: part 2")
+    assert_equal "Still another topic: part 2", topic.title
+  end
+
+  def test_read_attribute
+    topic = Topic.new
+    topic.title = "Don't change the topic"
+    assert_equal "Don't change the topic", topic.send(:read_attribute, "title")
+    assert_equal "Don't change the topic", topic["title"]
+
+    assert_equal "Don't change the topic", topic.send(:read_attribute, :title)
+    assert_equal "Don't change the topic", topic[:title]
+  end
+
+  def test_read_attribute_when_false
+    topic = topics(:first)
+    topic.approved = false
+    assert !topic.approved?, "approved should be false"
+    topic.approved = "false"
+    assert !topic.approved?, "approved should be false"
+  end
+
+  def test_read_attribute_when_true
+    topic = topics(:first)
+    topic.approved = true
+    assert topic.approved?, "approved should be true"
+    topic.approved = "true"
+    assert topic.approved?, "approved should be true"
+  end
+
+  def test_read_write_boolean_attribute
+    topic = Topic.new
+    # puts ""
+    # puts "New Topic"
+    # puts topic.inspect
+    topic.approved = "false"
+    # puts "Expecting false"
+    # puts topic.inspect
+    assert !topic.approved?, "approved should be false"
+    topic.approved = "false"
+    # puts "Expecting false"
+    # puts topic.inspect
+    assert !topic.approved?, "approved should be false"
+    topic.approved = "true"
+    # puts "Expecting true"
+    # puts topic.inspect
+    assert topic.approved?, "approved should be true"
+    topic.approved = "true"
+    # puts "Expecting true"
+    # puts topic.inspect
+    assert topic.approved?, "approved should be true"
+    # puts ""
+  end
+
+  def test_query_attribute_string
+    [nil, "", " "].each do |value|
+      assert_equal false, Topic.new(:author_name => value).author_name?
+    end
+
+    assert_equal true, Topic.new(:author_name => "Name").author_name?
+  end
+
+  def test_query_attribute_number
+    [nil, 0, "0"].each do |value|
+      assert_equal false, Developer.new(:salary => value).salary?
+    end
+
+    assert_equal true, Developer.new(:salary => 1).salary?
+    assert_equal true, Developer.new(:salary => "1").salary?
+  end
+
+  def test_query_attribute_boolean
+    [nil, "", false, "false", "f", 0].each do |value|
+      assert_equal false, Topic.new(:approved => value).approved?
+    end
+
+    [true, "true", "1", 1].each do |value|
+      assert_equal true, Topic.new(:approved => value).approved?
+    end
+  end
+
+  def test_query_attribute_with_custom_fields
+    object = Company.find_by_sql(<<-SQL).first
+      SELECT c1.*, c2.ruby_type as string_value, c2.rating as int_value
+        FROM companies c1, companies c2
+       WHERE c1.firm_id = c2.id
+         AND c1.id = 2
+    SQL
+
+    assert_equal "Firm", object.string_value
+    assert object.string_value?
+
+    object.string_value = "  "
+    assert !object.string_value?
+
+    assert_equal 1, object.int_value.to_i
+    assert object.int_value?
+
+    object.int_value = "0"
+    assert !object.int_value?
+  end
+
+  def test_non_attribute_access_and_assignment
+    topic = Topic.new
+    assert !topic.respond_to?("mumbo")
+    assert_raise(NoMethodError) { topic.mumbo }
+    assert_raise(NoMethodError) { topic.mumbo = 5 }
+  end
+
   def test_preserving_date_objects
     if current_adapter?(:SybaseAdapter)
       # Sybase ctlib does not (yet?) support the date type; use datetime instead.
@@ -284,7 +542,7 @@ class BasicsTest < ActiveRecord::TestCase
   end
 
 
-  if current_adapter?(:MysqlAdapter)
+  if current_adapter?(:MysqlAdapter) or current_adapter?(:Mysql2Adapter)
     def test_update_all_with_order_and_limit
       assert_equal 1, Topic.update_all("content = 'bulk updated!'", nil, :limit => 1, :order => 'id DESC')
     end

activerecord/test/cases/calculations_test.rb

@@ -325,7 +325,7 @@ class CalculationsTest < ActiveRecord::TestCase
   end
 
   def test_from_option_with_specified_index
-    if Edge.connection.adapter_name == 'MySQL'
+    if Edge.connection.adapter_name == 'MySQL' or Edge.connection.adapter_name == 'Mysql2'
       assert_equal Edge.count(:all), Edge.count(:all, :from => 'edges USE INDEX(unique_edge_index)')
       assert_equal Edge.count(:all, :conditions => 'sink_id < 5'),
           Edge.count(:all, :from => 'edges USE INDEX(unique_edge_index)', :conditions => 'sink_id < 5')

activerecord/test/cases/column_definition_test.rb

@@ -68,6 +68,40 @@ class ColumnDefinitionTest < ActiveRecord::TestCase
     end
   end
 
+  if current_adapter?(:Mysql2Adapter)
+    def test_should_set_default_for_mysql_binary_data_types
+      binary_column = ActiveRecord::ConnectionAdapters::Mysql2Column.new("title", "a", "binary(1)")
+      assert_equal "a", binary_column.default
+
+      varbinary_column = ActiveRecord::ConnectionAdapters::Mysql2Column.new("title", "a", "varbinary(1)")
+      assert_equal "a", varbinary_column.default
+    end
+
+    def test_should_not_set_default_for_blob_and_text_data_types
+      assert_raise ArgumentError do
+        ActiveRecord::ConnectionAdapters::Mysql2Column.new("title", "a", "blob")
+      end
+
+      assert_raise ArgumentError do
+        ActiveRecord::ConnectionAdapters::Mysql2Column.new("title", "Hello", "text")
+      end
+
+      text_column = ActiveRecord::ConnectionAdapters::Mysql2Column.new("title", nil, "text")
+      assert_equal nil, text_column.default
+
+      not_null_text_column = ActiveRecord::ConnectionAdapters::Mysql2Column.new("title", nil, "text", false)
+      assert_equal "", not_null_text_column.default
+    end
+
+    def test_has_default_should_return_false_for_blog_and_test_data_types
+      blob_column = ActiveRecord::ConnectionAdapters::Mysql2Column.new("title", nil, "blob")
+      assert !blob_column.has_default?
+
+      text_column = ActiveRecord::ConnectionAdapters::Mysql2Column.new("title", nil, "text")
+      assert !text_column.has_default?
+    end
+  end
+
   if current_adapter?(:PostgreSQLAdapter)
     def test_bigint_column_should_map_to_integer
       bigint_column = ActiveRecord::ConnectionAdapters::PostgreSQLColumn.new('number', nil, "bigint")

activerecord/test/cases/defaults_test.rb

@@ -39,7 +39,7 @@ class DefaultTest < ActiveRecord::TestCase
   end
 end
 
-if current_adapter?(:MysqlAdapter)
+if current_adapter?(:MysqlAdapter) or current_adapter?(:Mysql2Adapter)
   class DefaultsTestWithoutTransactionalFixtures < ActiveRecord::TestCase
     # ActiveRecord::Base#create! (and #save and other related methods) will
     # open a new transaction. When in transactional fixtures mode, this will

activerecord/test/cases/migration_test.rb

@@ -256,7 +256,7 @@ if ActiveRecord::Base.connection.supports_migrations?
 
     def test_create_table_with_defaults
       # MySQL doesn't allow defaults on TEXT or BLOB columns.
-      mysql = current_adapter?(:MysqlAdapter)
+      mysql = current_adapter?(:MysqlAdapter) || current_adapter?(:Mysql2Adapter)
 
       Person.connection.create_table :testings do |t|
         t.column :one, :string, :default => "hello"
@@ -313,7 +313,7 @@ if ActiveRecord::Base.connection.supports_migrations?
         assert_equal 'integer', four.sql_type
         assert_equal 'bigint', eight.sql_type
         assert_equal 'integer', eleven.sql_type
-      elsif current_adapter?(:MysqlAdapter)
+      elsif current_adapter?(:MysqlAdapter) or current_adapter?(:Mysql2Adapter)
         assert_match 'int(11)', default.sql_type
         assert_match 'tinyint', one.sql_type
         assert_match 'int', four.sql_type
@@ -581,7 +581,7 @@ if ActiveRecord::Base.connection.supports_migrations?
       assert_kind_of BigDecimal, bob.wealth
     end
 
-    if current_adapter?(:MysqlAdapter)
+    if current_adapter?(:MysqlAdapter) or current_adapter?(:Mysql2Adapter)
       def test_unabstracted_database_dependent_types
         Person.delete_all
 
@@ -621,7 +621,7 @@ if ActiveRecord::Base.connection.supports_migrations?
       assert !Person.column_methods_hash.include?(:last_name)
     end
 
-    if current_adapter?(:MysqlAdapter)
+    if current_adapter?(:MysqlAdapter) or current_adapter?(:Mysql2Adapter)
       def testing_table_for_positioning
         Person.connection.create_table :testings, :id => false do |t|
           t.column :first, :integer
@@ -1447,7 +1447,7 @@ if ActiveRecord::Base.connection.supports_migrations?
       columns = Person.connection.columns(:binary_testings)
       data_column = columns.detect { |c| c.name == "data" }
 
-      if current_adapter?(:MysqlAdapter)
+      if current_adapter?(:MysqlAdapter) or current_adapter?(:Mysql2Adapter)
         assert_equal '', data_column.default
       else
         assert_nil data_column.default
@@ -1748,7 +1748,7 @@ if ActiveRecord::Base.connection.supports_migrations?
     end
 
     def integer_column
-      if current_adapter?(:MysqlAdapter)
+      if current_adapter?(:MysqlAdapter) or current_adapter?(:Mysql2Adapter)
         'int(11)'
       elsif current_adapter?(:OracleAdapter)
         'NUMBER(38)'

activerecord/test/cases/query_cache_test.rb

@@ -57,7 +57,7 @@ class QueryCacheTest < ActiveRecord::TestCase
       # Oracle adapter returns count() as Fixnum or Float
       if current_adapter?(:OracleAdapter)
         assert_kind_of Numeric, Task.connection.select_value("SELECT count(*) AS count_all FROM tasks")
-      elsif current_adapter?(:SQLite3Adapter) && SQLite3::Version::VERSION > '1.2.5'
+      elsif current_adapter?(:SQLite3Adapter) && SQLite3::Version::VERSION > '1.2.5' or current_adapter?(:Mysql2Adapter)
         # Future versions of the sqlite3 adapter will return numeric
         assert_instance_of Fixnum,
          Task.connection.select_value("SELECT count(*) AS count_all FROM tasks")

activerecord/test/cases/schema_dumper_test.rb

@@ -93,7 +93,7 @@ class SchemaDumperTest < ActiveRecord::TestCase
 
       assert_match %r{c_int_4.*}, output
       assert_no_match %r{c_int_4.*:limit}, output
-    elsif current_adapter?(:MysqlAdapter)
+    elsif current_adapter?(:MysqlAdapter) or current_adapter?(:Mysql2Adapter)
       assert_match %r{c_int_1.*:limit => 1}, output
       assert_match %r{c_int_2.*:limit => 2}, output
       assert_match %r{c_int_3.*:limit => 3}, output
@@ -169,7 +169,7 @@ class SchemaDumperTest < ActiveRecord::TestCase
     assert_match %r(:primary_key => "movieid"), match[1], "non-standard primary key not preserved"
   end
 
-  if current_adapter?(:MysqlAdapter)
+  if current_adapter?(:MysqlAdapter) or current_adapter?(:Mysql2Adapter)
     def test_schema_dump_should_not_add_default_value_for_mysql_text_field
       output = standard_dump
       assert_match %r{t.text\s+"body",\s+:null => false$}, output

activerecord/test/connections/native_mysql2/connection.rb

@@ -0,0 +1,25 @@
+print "Using native Mysql2\n"
+require_dependency 'models/course'
+require 'logger'
+
+ActiveRecord::Base.logger = Logger.new("debug.log")
+
+# GRANT ALL PRIVILEGES ON activerecord_unittest.* to 'rails'@'localhost';
+# GRANT ALL PRIVILEGES ON activerecord_unittest2.* to 'rails'@'localhost';
+
+ActiveRecord::Base.configurations = {
+  'arunit' => {
+    :adapter  => 'mysql2',
+    :username => 'rails',
+    :encoding => 'utf8',
+    :database => 'activerecord_unittest',
+  },
+  'arunit2' => {
+    :adapter  => 'mysql2',
+    :username => 'rails',
+    :database => 'activerecord_unittest2'
+  }
+}
+
+ActiveRecord::Base.establish_connection 'arunit'
+Course.establish_connection 'arunit2'

activerecord/test/schema/mysql2_specific_schema.rb

@@ -0,0 +1,24 @@
+ActiveRecord::Schema.define do
+  create_table :binary_fields, :force => true, :options => 'CHARACTER SET latin1' do |t|
+    t.binary :tiny_blob,   :limit => 255
+    t.binary :normal_blob, :limit => 65535
+    t.binary :medium_blob, :limit => 16777215
+    t.binary :long_blob,   :limit => 2147483647
+    t.text   :tiny_text,   :limit => 255
+    t.text   :normal_text, :limit => 65535
+    t.text   :medium_text, :limit => 16777215
+    t.text   :long_text,   :limit => 2147483647
+  end
+
+  ActiveRecord::Base.connection.execute <<-SQL
+DROP PROCEDURE IF EXISTS ten;
+SQL
+
+  ActiveRecord::Base.connection.execute <<-SQL
+CREATE PROCEDURE ten() SQL SECURITY INVOKER
+BEGIN
+	select 10;
+END
+SQL
+
+end