@Test
public void testVisitBinaryExpressionOperationWithNotEqualOperationAndNullValue() {

	Map<String, EntityField> entityFieldsMap =
		_entityModel.getEntityFieldsMap();
	EntityField entityField = entityFieldsMap.get("title");
	ExistsFilter existsFilter =
		(ExistsFilter)_expressionVisitorImpl.visitBinaryExpressionOperation(
			BinaryExpression.Operation.NE, entityField, null);
	Assert.assertEquals(entityField.getName(), existsFilter.getField());
}