| package org.apache.velocity.test; |
| |
| /* |
| * 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. |
| */ |
| |
| import java.util.Collections; |
| |
| /** |
| * Used to check that empty values are properly handled in #if statements |
| */ |
| public class IfEmptyTestCase extends BaseTestCase |
| { |
| public IfEmptyTestCase(final String name) |
| { |
| super(name); |
| } |
| |
| protected void assertEmpty(Object obj) |
| { |
| context.put("obj", obj); |
| assertEvalEquals("", "#if( $obj )fail#end"); |
| } |
| |
| public void testNull() |
| { |
| assertEmpty(null); |
| assertEmpty(new NullAsString()); |
| assertEmpty(new NullAsNumber()); |
| } |
| |
| public void testDataStructures() |
| { |
| assertEmpty(Collections.emptyMap()); |
| assertEmpty(Collections.emptyList()); |
| assertEmpty(new Object[]{}); |
| } |
| |
| public void testString() |
| { |
| assertEmpty(""); |
| assertEmpty(new EmptyAsString()); |
| assertEmpty(new EmptyToString()); |
| } |
| |
| public static class NullAsString |
| { |
| public String getAsString() |
| { |
| return null; |
| } |
| } |
| |
| public static class EmptyAsString |
| { |
| public String getAsString() |
| { |
| return ""; |
| } |
| } |
| |
| public static class NullAsNumber |
| { |
| public String getAsNumber() |
| { |
| return null; |
| } |
| } |
| |
| public static class EmptyToString |
| { |
| public String toString() |
| { |
| return ""; |
| } |
| } |
| |
| } |
| |
| |