/*
* 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.mina.core;
import org.apache.mina.core.filterchain.DefaultIoFilterChainBuilder;
import org.apache.mina.core.filterchain.IoFilter;
import org.apache.mina.core.filterchain.IoFilterAdapter;
import org.apache.mina.core.filterchain.IoFilterChain.Entry;
import org.apache.mina.filter.util.NoopFilter;
import org.junit.After;
import org.junit.Before;
import org.junit.Test;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertSame;
/**
* Tests {@link DefaultIoFilterChainBuilder}.
*
* @author The Apache MINA Project (dev@mina.apache.org)
* @version $Rev$, $Date$
*/
public class DefaultIoFilterChainBuilderTest {
@Before
public void setUp() throws Exception {
}
@After
public void tearDown() throws Exception {
}
@Test
public void testAdd() throws Exception {
DefaultIoFilterChainBuilder builder = new DefaultIoFilterChainBuilder();
builder.addFirst("A", new NoopFilter());
builder.addLast("B", new NoopFilter());
builder.addFirst("C", new NoopFilter());
builder.addLast("D", new NoopFilter());
builder.addBefore("B", "E", new NoopFilter());
builder.addBefore("C", "F", new NoopFilter());
builder.addAfter("B", "G", new NoopFilter());
builder.addAfter("D", "H", new NoopFilter());
String actual = "";
for (Entry e : builder.getAll()) {
actual += e.getName();
}
assertEquals("FCAEBGDH", actual);
}
@Test
public void testGet() throws Exception {
DefaultIoFilterChainBuilder builder = new DefaultIoFilterChainBuilder();
IoFilter filterA = new NoopFilter();
IoFilter filterB = new NoopFilter();
IoFilter filterC = new NoopFilter();
IoFilter filterD = new NoopFilter();
builder.addFirst("A", filterA);
builder.addLast("B", filterB);
builder.addBefore("B", "C", filterC);
builder.addAfter("A", "D", filterD);
assertSame(filterA, builder.get("A"));
assertSame(filterB, builder.get("B"));
assertSame(filterC, builder.get("C"));
assertSame(filterD, builder.get("D"));
}
@Test
public void testRemove() throws Exception {
DefaultIoFilterChainBuilder builder = new DefaultIoFilterChainBuilder();
builder.addLast("A", new NoopFilter());
builder.addLast("B", new NoopFilter());
builder.addLast("C", new NoopFilter());
builder.addLast("D", new NoopFilter());
builder.addLast("E", new NoopFilter());
builder.remove("A");
builder.remove("E");
builder.remove("C");
builder.remove("B");
builder.remove("D");
assertEquals(0, builder.getAll().size());
}
@Test
public void testClear() throws Exception {
DefaultIoFilterChainBuilder builder = new DefaultIoFilterChainBuilder();
builder.addLast("A", new NoopFilter());
builder.addLast("B", new NoopFilter());
builder.addLast("C", new NoopFilter());
builder.addLast("D", new NoopFilter());
builder.addLast("E", new NoopFilter());
builder.clear();
assertEquals(0, builder.getAll().size());
}
@Test
public void testToString() {
DefaultIoFilterChainBuilder builder = new DefaultIoFilterChainBuilder();
// When the chain is empty
assertEquals("{ empty }", builder.toString());
// When there's one filter
builder.addLast("A", new IoFilterAdapter() {
@Override
public String toString() {
return "B";
}
});
assertEquals("{ (A:B) }", builder.toString());
// When there are two
builder.addLast("C", new IoFilterAdapter() {
@Override
public String toString() {
return "D";
}
});
assertEquals("{ (A:B), (C:D) }", builder.toString());
}
}