5 files changed, 24 insertions, 24 deletions
diff --git a/spec/spec_helper.rb b/spec/spec_helper.rb
index 5941840437..a52fa257b7 100644
--- a/spec/spec_helper.rb
+++ b/spec/spec_helper.rb
@@ -7,6 +7,10 @@ require 'pp'
 require 'fileutils'
 require 'arel'
 
+if adapter = ENV['ADAPTER']
+  require "support/connections/#{adapter}_connection.rb"
+end
+
 Dir["#{dir}/{support,shared}/*.rb"].each do |file|
   require file
 end
@@ -16,13 +20,17 @@ Spec::Runner.configure do |config|
   config.include AdapterGuards
   config.include Check
 
-  config.before do
-    Arel::Table.engine = Arel::Sql::Engine.new(ActiveRecord::Base) if defined?(ActiveRecord::Base)
-  end
-end
+  if defined?(ActiveRecord::Base)
+    tmp = File.expand_path('../../tmp', __FILE__)
 
-# load corresponding adapter using ADAPTER environment variable when running single *_spec.rb file
-if adapter = ENV['ADAPTER']
-  require "#{dir}/support/connections/#{adapter}_connection.rb"
-  require "#{dir}/support/schemas/#{adapter}_schema.rb"
+    FileUtils.mkdir_p(tmp)
+    ActiveRecord::Base.logger = Logger.new("#{tmp}/debug.log")
+    ActiveRecord::Base.establish_connection("unit")
+
+    require "support/schemas/#{ENV['ADAPTER']}_schema.rb"
+
+    config.before do
+      Arel::Table.engine = Arel::Sql::Engine.new(ActiveRecord::Base)
+    end
+  end
 end
diff --git a/spec/support/connections/mysql_connection.rb b/spec/support/connections/mysql_connection.rb
index 66a53b5037..de9d05c2ce 100644
--- a/spec/support/connections/mysql_connection.rb
+++ b/spec/support/connections/mysql_connection.rb
@@ -2,7 +2,7 @@ puts "Using native MySQL"
 require "active_record"
 require 'logger'
 
-ActiveRecord::Base.logger = Logger.new("debug.log")
+ENV['ADAPTER'] = 'mysql'
 
 ActiveRecord::Base.configurations = {
   'unit' => {
@@ -11,6 +11,4 @@ ActiveRecord::Base.configurations = {
     :encoding => 'utf8',
     :database => 'arel_unit',
   }
-}
-
-ActiveRecord::Base.establish_connection 'unit'
+}
+\ No newline at end of file
diff --git a/spec/support/connections/oracle_connection.rb b/spec/support/connections/oracle_connection.rb
index 05be04e410..c28602b134 100644
--- a/spec/support/connections/oracle_connection.rb
+++ b/spec/support/connections/oracle_connection.rb
@@ -2,11 +2,11 @@ puts "Using native Oracle"
 require "active_record"
 require 'logger'
 
+ENV['ADAPTER'] = 'oracle'
+
 # Prepend oracle_enhanced local development directory in front of load path
 $LOAD_PATH.unshift "#{File.dirname(__FILE__)}/../../../oracle-enhanced/lib"
 
-ActiveRecord::Base.logger = Logger.new("debug.log")
-
 ActiveRecord::Base.configurations = {
   'unit' => {
     :adapter  => 'oracle_enhanced',
@@ -14,6 +14,4 @@ ActiveRecord::Base.configurations = {
     :password => 'arel_unit',
     :database => 'orcl',
   }
-}
-
-ActiveRecord::Base.establish_connection 'unit'
+}
+\ No newline at end of file
diff --git a/spec/support/connections/postgresql_connection.rb b/spec/support/connections/postgresql_connection.rb
index 0fb6dfe065..34d304efa9 100644
--- a/spec/support/connections/postgresql_connection.rb
+++ b/spec/support/connections/postgresql_connection.rb
@@ -2,7 +2,7 @@ puts "Using native PostgreSQL"
 require "active_record"
 require 'logger'
 
-ActiveRecord::Base.logger = Logger.new("debug.log")
+ENV['ADAPTER'] = 'postgresql'
 
 ActiveRecord::Base.configurations = {
   'unit' => {
@@ -10,6 +10,4 @@ ActiveRecord::Base.configurations = {
     :encoding => 'utf8',
     :database => 'arel_unit',
   }
-}
-
-ActiveRecord::Base.establish_connection 'unit'
+}
+\ No newline at end of file
diff --git a/spec/support/connections/sqlite3_connection.rb b/spec/support/connections/sqlite3_connection.rb
index abdbd24fe4..4c8627c795 100644
--- a/spec/support/connections/sqlite3_connection.rb
+++ b/spec/support/connections/sqlite3_connection.rb
@@ -2,7 +2,7 @@ puts "Using native SQLite3"
 require "active_record"
 require 'logger'
 
-ActiveRecord::Base.logger = Logger.new("debug.log")
+ENV['ADAPTER'] = 'sqlite3'
 
 db_file = "spec/support/fixtures/fixture_database.sqlite3"
 
@@ -22,5 +22,3 @@ unless File.exist?(db_file)
   puts "Executing '#{sqlite_command}'"
   raise "Seems that there is no sqlite3 executable available" unless system(sqlite_command)
 end
-
-ActiveRecord::Base.establish_connection("unit")