Connection pool warmup test

Author: methodmissing

test/connection_pool_test.rb

@@ -0,0 +1,14 @@
+require "#{File.dirname(__FILE__)}/helper"
+
+Mysqlplus::Test.prepare!
+
+class ConnectionPoolTest < ActiveSupport::TestCase
+  
+  test "should not establish connections in a lazy manner when warmed up" do
+    ActiveRecord::Base.connection_pool.expects(:checkout_new_connection).never
+    5.times do
+      ActiveRecord::Base.connection_pool.checkout
+    end
+  end
+  
+end  

test/deferrable/result_test.rb

@@ -0,0 +1,35 @@
+require "#{File.dirname(__FILE__)}/../helper"
+
+Mysqlplus::Test.prepare!
+
+class ResultTest < ActiveSupport::TestCase
+  
+  def teardown
+    ActiveRecord::Base.clear_all_connections!
+    ActiveRecord::Base.establish_connection( Mysqlplus::Test::CONNECTION_SPEC )
+    super
+  end
+  
+  test "should be able to raise exceptions from the background Thread" do
+    assert_raises( StandardError ) do
+      ActiveRecord::Deferrable::Result.new do
+        raise StandardError
+      end.to_s
+    end  
+  end 
+  
+  test "should release the checked out connection for the background Thread at all times" do
+    ActiveRecord::Base.connection_pool.expects(:release_connection).once
+    ActiveRecord::Deferrable::Result.new do
+      raise StandardError
+    end
+  end
+  
+  test "should only block when an immediate result is required" do
+    ActiveRecord::Deferrable::Result.any_instance.expects(:validate!).never
+    ActiveRecord::Deferrable::Result.new do
+      sleep(5)
+    end
+  end
+  
+end