DATAMONGO-799 - Fix failing test in MongoTemplateTests on MongoDB 2.5.x.

Generalized exception message matching to reflect the changed exception message in MongoDB 2.5.x that also works with previous versions of MongoDB.

Original pull request: #97.

spring-data-mongodb/src/test/java/org/springframework/data/mongodb/core/MongoTemplateTests.java

@@ -216,6 +216,7 @@ public class MongoTemplateTests {
 
 	/**
 	 * @see DATAMONGO-480
+	 * @see DATAMONGO-799
 	 */
 	@Test
 	public void throwsExceptionForUpdateWithInvalidPushOperator() {
@@ -231,8 +232,10 @@ public class MongoTemplateTests {
 
 		thrown.expect(DataIntegrityViolationException.class);
 		thrown.expectMessage("Execution");
-		thrown.expectMessage("$push");
+		thrown.expectMessage("UPDATE");
+		thrown.expectMessage("array");
 		thrown.expectMessage("firstName");
+		thrown.expectMessage("failed");
 
 		Query query = new Query(Criteria.where("firstName").is("Amol"));
 		Update upd = new Update().push("age", 29);