Leased connections return false on second lease

activerecord/lib/active_record/connection_adapters/abstract_adapter.rb

@@ -73,8 +73,10 @@ def initialize(connection, logger = nil) #:nodoc:
 
       def lease
         synchronize do
-          @in_use   = true
-          @last_use = Time.now
+          unless in_use
+            @in_use   = true
+            @last_use = Time.now
+          end
         end
       end
 

activerecord/test/cases/connection_adapters/abstract_adapter_test.rb

@@ -3,14 +3,23 @@
 module ActiveRecord
   module ConnectionAdapters
     class AbstractAdapterTest < ActiveRecord::TestCase
-      def test_in_use?
-        adapter = AbstractAdapter.new nil, nil
+      attr_reader :adapter
+
+      def setup
+        @adapter = AbstractAdapter.new nil, nil
+      end
 
+      def test_in_use?
         # FIXME: change to refute in Rails 4.0 / mt
         assert !adapter.in_use?, 'adapter is not in use'
         assert adapter.lease, 'lease adapter'
         assert adapter.in_use?, 'adapter is in use'
       end
+
+      def test_lease_twice
+        assert adapter.lease, 'should lease adapter'
+        assert !adapter.lease, 'should not lease adapter'
+      end
     end
   end
 end