Add the sql server specific stuff from rails.

Added the sql server specific schema and an extension to aaa_create_tables_test that will ensure we load / test this from the new adapter specific schema root.

Author: h-lame

test/cases/aaa_create_tables_test_sqlserver.rb

@@ -0,0 +1,10 @@
+require 'cases/helper'
+require "cases/aaa_create_tables_test"
+
+# TODO Should this really be in the same test class as the "real" one in rails?
+class AAACreateTablesTest < ActiveRecord::TestCase
+  def test_load_sqlserver_specific_schema
+    eval(File.read(File.expand_path(File.join(File.dirname(__FILE__), '..', 'schema', 'sqlserver_specific_schema.rb'))))
+    assert true
+  end
+end

test/schema/sqlserver_specific_schema.rb

@@ -0,0 +1,31 @@
+ActiveRecord::Schema.define do
+  create_table :table_with_real_columns, :force => true do |t|
+    t.column :real_number, :real
+  end
+  
+  create_table :defaults, :force => true do |t|
+    # NOTE: These are the other columns from the postgresql specific schema
+    # however, there aren't any tests for them yet, so no point creating them.
+    # modified_date date default CURRENT_DATE,
+    # modified_date_function date default now(),
+    # fixed_date date default '2004-01-01',
+    # modified_time timestamp default CURRENT_TIMESTAMP,
+    # modified_time_function timestamp default now(),
+    # fixed_time timestamp default '2004-01-01 00:00:00.000000-00',
+    # char1 char(1) default 'Y',
+    # char2 character varying(50) default 'a varchar field',
+    # char3 text default 'a text field',
+    
+    t.column :positive_integer, :integer, :default => 1
+    t.column :negative_integer, :integer, :default => -1
+    t.column :decimal_number, :decimal, :precision => 3, :scale => 2, :default => 2.78
+  end
+  
+  create_table :string_defaults, :force => true do |t|
+    t.column :string_with_null_default, :string, :default => nil
+    t.column :string_with_pretend_null_one, :string, :default => 'null'
+    t.column :string_with_pretend_null_two, :string, :default => '(null)'
+    t.column :string_with_pretend_null_three, :string, :default => 'NULL'
+    t.column :string_with_pretend_null_four, :string, :default => '(NULL)'
+  end
+end