netty5/common/src/test/java/io/netty/util/AttributeKeyTest.java
Norman Maurer 99bd43ed51 Allow to get existing ChannelOption / AttributeKey from String
Motivation:

We should allow to get a ChannelOption/AttributeKey from a String. This will make it a lot easier to make use of configuration files in applications.

Modifications:

- Add exists(...), newInstance(...) method to ChannelOption and AttributeKey and alter valueOf(...) to return an existing instance for a String or create one.
- Add unit tests.

Result:

Much more flexible usage of ChannelOption and AttributeKey.
2015-02-18 09:29:37 +01:00

60 lines
1.7 KiB
Java

/*
* Copyright 2015 The Netty Project
*
* The Netty Project 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 io.netty.util;
import org.junit.Test;
import static org.junit.Assert.*;
public class AttributeKeyTest {
@Test
public void testExists() {
String name = "test";
assertFalse(AttributeKey.exists(name));
AttributeKey<String> attr = AttributeKey.valueOf(name);
assertTrue(AttributeKey.exists(name));
assertNotNull(attr);
}
@Test
public void testValueOf() {
String name = "test1";
assertFalse(AttributeKey.exists(name));
AttributeKey<String> attr = AttributeKey.valueOf(name);
AttributeKey<String> attr2 = AttributeKey.valueOf(name);
assertSame(attr, attr2);
}
@Test
public void testNewInstance() {
String name = "test2";
assertFalse(AttributeKey.exists(name));
AttributeKey<String> attr = AttributeKey.newInstance(name);
assertTrue(AttributeKey.exists(name));
assertNotNull(attr);
try {
AttributeKey.<String>newInstance(name);
fail();
} catch (IllegalArgumentException e) {
// expected
}
}
}