1 files changed, 16 insertions, 0 deletions
diff --git a/activerecord/test/cases/adapters/postgresql/statement_pool_test.rb b/activerecord/test/cases/adapters/postgresql/statement_pool_test.rb
index a82c6f67d6..f1c4b85126 100644
--- a/activerecord/test/cases/adapters/postgresql/statement_pool_test.rb
+++ b/activerecord/test/cases/adapters/postgresql/statement_pool_test.rb
@@ -2,6 +2,16 @@ require 'cases/helper'
 
 module ActiveRecord::ConnectionAdapters
   class PostgreSQLAdapter < AbstractAdapter
+    class InactivePGconn
+      def query(*args)
+        raise PGError
+      end
+
+      def status
+        PGconn::CONNECTION_BAD
+      end
+    end
+
     class StatementPoolTest < ActiveRecord::TestCase
       def test_cache_is_per_pid
         return skip('must support fork') unless Process.respond_to?(:fork)
@@ -18,6 +28,12 @@ module ActiveRecord::ConnectionAdapters
         Process.waitpid pid
         assert $?.success?, 'process should exit successfully'
       end
+
+      def test_dealloc_does_not_raise_on_inactive_connection
+        cache = StatementPool.new InactivePGconn.new, 10
+        cache['foo'] = 'bar'
+        assert_nothing_raised { cache.clear }
+      end
     end
   end
 end