New test case. It works already, so this is mostly just additional coverage.

git-svn-id: https://svn.apache.org/repos/asf/openjpa/trunk@555389 13f79535-47bb-0310-9956-ffa450edef68

openjpa-persistence-jdbc/src/test/java/org/apache/openjpa/persistence/query/TestEscapedSingleQuotesInJPQL.java

@@ -0,0 +1,55 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+package org.apache.openjpa.persistence.query;
+
+import java.util.Collection;
+import javax.persistence.EntityManager;
+
+import org.apache.openjpa.persistence.test.SingleEMFTestCase;
+import org.apache.openjpa.persistence.simple.AllFieldTypes;
+import org.apache.openjpa.persistence.OpenJPAEntityManager;
+import org.apache.openjpa.persistence.OpenJPAQuery;
+
+public class TestEscapedSingleQuotesInJPQL
+    extends SingleEMFTestCase {
+
+    public void setUp() {
+        setUp(AllFieldTypes.class, CLEAR_TABLES);
+
+        AllFieldTypes aft = new AllFieldTypes();
+        aft.setStringField("foo'bar");
+        EntityManager em = emf.createEntityManager();
+        em.getTransaction().begin();
+        em.persist(aft);
+        em.getTransaction().commit();
+        em.close();
+    }
+
+    public void testEscapedSingleQuotesInJPQL() {
+        OpenJPAEntityManager em = emf.createEntityManager();
+        OpenJPAQuery q = em.createQuery("select count(o) " +
+            "from AllFieldTypes o where o.stringField = 'foo''bar'");
+        assertEquals(1, ((Number) q.getSingleResult()).longValue());
+
+        Collection all = em.createQuery("select o from AllFieldTypes o")
+            .getResultList();
+        q.setCandidateCollection(all);
+        assertEquals(1, ((Number) q.getSingleResult()).longValue());
+    }
+}