* Added MapUtilTest

* Added SilentLoggerFactory for a testing purpose

src/main/java/org/jboss/netty/util/MapUtil.java

@@ -29,8 +29,6 @@ import java.util.List;
 import java.util.Map;
 import java.util.Random;
 
-import org.jboss.netty.channel.ChannelHandler;
-import org.jboss.netty.channel.SimpleChannelHandler;
 import org.jboss.netty.logging.InternalLogger;
 import org.jboss.netty.logging.InternalLoggerFactory;
 
@@ -45,8 +43,9 @@ public class MapUtil {
     private static final InternalLogger logger =
         InternalLoggerFactory.getInstance(MapUtil.class);
 
-    public static boolean isOrderedMap(Map<String, ChannelHandler> map) {
-        Class<Map<String, ChannelHandler>> mapType = getMapClass(map);
+    @SuppressWarnings("unchecked")
+    public static boolean isOrderedMap(Map<?, ?> map) {
+        Class<?> mapType = map.getClass();
         if (LinkedHashMap.class.isAssignableFrom(mapType)) {
             if (logger.isDebugEnabled()) {
                 logger.debug(mapType.getSimpleName() + " is an ordered map.");
@@ -90,9 +89,9 @@ public class MapUtil {
                 "default constructor and test if insertion order is " +
                 "maintained.");
 
-        Map<String, ChannelHandler> newMap;
+        Map newMap;
         try {
-            newMap = mapType.newInstance();
+            newMap = (Map) mapType.newInstance();
         } catch (Exception e) {
             if (logger.isDebugEnabled()) {
                 logger.debug(
@@ -103,20 +102,20 @@ public class MapUtil {
         }
 
         Random rand = new Random();
-        List<String> expectedNames = new ArrayList<String>();
-        ChannelHandler dummyHandler = new SimpleChannelHandler();
-        for (int i = 0; i < 65536; i ++) {
-            String filterName;
+        List<String> expectedKeys = new ArrayList<String>();
+        String dummyValue = "dummyValue";
+        for (int i = 0; i < 10000; i ++) {
+            String key;
             do {
-                filterName = String.valueOf(rand.nextInt());
-            } while (newMap.containsKey(filterName));
+                key = String.valueOf(rand.nextInt());
+            } while (newMap.containsKey(key));
 
-            newMap.put(filterName, dummyHandler);
-            expectedNames.add(filterName);
+            newMap.put(key, dummyValue);
+            expectedKeys.add(key);
 
-            Iterator<String> it = expectedNames.iterator();
-            for (Object key: newMap.keySet()) {
-                if (!it.next().equals(key)) {
+            Iterator<String> it = expectedKeys.iterator();
+            for (Object actualKey: newMap.keySet()) {
+                if (!it.next().equals(actualKey)) {
                     if (logger.isDebugEnabled()) {
                         logger.debug(
                                 "The specified map didn't pass the insertion " +
@@ -131,12 +130,6 @@ public class MapUtil {
         return true;
     }
 
-    @SuppressWarnings("unchecked")
-    private static Class<Map<String, ChannelHandler>> getMapClass(
-            Map<String, ChannelHandler> map) {
-        return (Class<Map<String, ChannelHandler>>) map.getClass();
-    }
-
     private MapUtil() {
         // Unused
     }

src/test/java/org/jboss/netty/bootstrap/BootstrapTest.java

@@ -39,8 +39,8 @@ import org.jboss.netty.channel.ChannelFactory;
 import org.jboss.netty.channel.ChannelHandler;
 import org.jboss.netty.channel.ChannelPipeline;
 import org.jboss.netty.channel.ChannelPipelineFactory;
-import org.jboss.netty.channel.DefaultChannelPipeline;
-import org.junit.AfterClass;
+import org.jboss.netty.logging.InternalLoggerFactory;
+import org.jboss.netty.util.SilentLoggerFactory;
 import org.junit.BeforeClass;
 import org.junit.Test;
 
@@ -277,14 +277,6 @@ public class BootstrapTest {
 
     @BeforeClass
     public static void setUp() {
-        // DefaultChannelPipeline will generate expected warning messages.
-        // Suppress them.
-        Logger.getLogger(DefaultChannelPipeline.class.getName()).setLevel(Level.SEVERE);
-    }
-
-    @AfterClass
-    public static void tearDown() {
-        // Revert the logger settings back.
-        Logger.getLogger(DefaultChannelPipeline.class.getName()).setLevel(Level.INFO);
+        InternalLoggerFactory.setDefaultFactory(new SilentLoggerFactory());
     }
 }

src/test/java/org/jboss/netty/util/MapUtilTest.java

@@ -0,0 +1,135 @@
+/*
+ * JBoss, Home of Professional Open Source
+ *
+ * Copyright 2008, Red Hat Middleware LLC, and individual contributors
+ * by the @author tags. See the COPYRIGHT.txt in the distribution for a
+ * full listing of individual contributors.
+ *
+ * This is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU Lesser General Public License as
+ * published by the Free Software Foundation; either version 2.1 of
+ * the License, or (at your option) any later version.
+ *
+ * This software is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this software; if not, write to the Free
+ * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+ * 02110-1301 USA, or see the FSF site: http://www.fsf.org.
+ */
+package org.jboss.netty.util;
+
+import static org.junit.Assert.*;
+
+import java.util.AbstractMap;
+import java.util.HashMap;
+import java.util.LinkedHashMap;
+import java.util.Map;
+import java.util.Set;
+
+import org.jboss.netty.logging.InternalLoggerFactory;
+import org.junit.BeforeClass;
+import org.junit.Test;
+
+
+/**
+ * @author The Netty Project (netty-dev@lists.jboss.org)
+ * @author Trustin Lee (tlee@redhat.com)
+ *
+ * @version $Rev$, $Date$
+ *
+ */
+public class MapUtilTest {
+
+    @Test
+    public void shouldReturnTrueIfLinkedHashMap() {
+        assertTrue(MapUtil.isOrderedMap(new LinkedHashMap<String, String>()));
+    }
+
+    @Test
+    public void shouldReturnTrueIfMapImplementsOrderedMap() {
+        assertTrue(MapUtil.isOrderedMap(new DummyOrderedMap<String, String>()));
+    }
+
+    @Test
+    public void shouldReturnFalseIfMapHasNoDefaultConstructor() {
+        assertFalse(MapUtil.isOrderedMap(
+                new MapWithoutDefaultConstructor<String, String>(
+                        new HashMap<String, String>())));
+    }
+
+    @Test
+    public void shouldReturnFalseIfMapIsNotOrdered() {
+        assertFalse(MapUtil.isOrderedMap(new HashMap<String, String>()));
+    }
+
+    @Test
+    public void shouldReturnTrueIfMapIsOrdered() {
+        assertTrue(MapUtil.isOrderedMap(new UnknownOrderedMap<String, String>()));
+    }
+
+    @BeforeClass
+    public static void setUp() {
+        InternalLoggerFactory.setDefaultFactory(new SilentLoggerFactory());
+    }
+
+    interface OrderedMap {
+        // A tag interface
+    }
+
+    static class DummyOrderedMap<K,V> extends AbstractMap<K, V> implements OrderedMap {
+
+        private final Map<K, V> map = new HashMap<K, V>();
+
+        @Override
+        public Set<Entry<K, V>> entrySet() {
+            return map.entrySet();
+        }
+    }
+
+    static class MapWithoutDefaultConstructor<K, V> extends AbstractMap<K, V> {
+        private final Map<K, V> map;
+
+        MapWithoutDefaultConstructor(Map<K, V> map) {
+            this.map = map;
+        }
+
+        @Override
+        public Set<Entry<K, V>> entrySet() {
+            return map.entrySet();
+        }
+    }
+
+    static class UnknownOrderedMap<K,V> extends AbstractMap<K, V> {
+
+        private final Map<K, V> map = new LinkedHashMap<K, V>();
+
+        @Override
+        public boolean containsKey(Object key) {
+            return map.containsKey(key);
+        }
+
+        @Override
+        public int size() {
+            return map.size();
+        }
+
+        @Override
+        public V put(K key, V value) {
+            return map.put(key, value);
+        }
+
+        @Override
+        public Set<K> keySet() {
+            return map.keySet();
+        }
+
+        @Override
+        public Set<Entry<K, V>> entrySet() {
+            return map.entrySet();
+        }
+    }
+}

src/test/java/org/jboss/netty/util/SilentLoggerFactory.java

@@ -0,0 +1,97 @@
+/*
+ * JBoss, Home of Professional Open Source
+ *
+ * Copyright 2008, Red Hat Middleware LLC, and individual contributors
+ * by the @author tags. See the COPYRIGHT.txt in the distribution for a
+ * full listing of individual contributors.
+ *
+ * This is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU Lesser General Public License as
+ * published by the Free Software Foundation; either version 2.1 of
+ * the License, or (at your option) any later version.
+ *
+ * This software is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this software; if not, write to the Free
+ * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+ * 02110-1301 USA, or see the FSF site: http://www.fsf.org.
+ */
+package org.jboss.netty.util;
+
+import org.jboss.netty.logging.InternalLogger;
+import org.jboss.netty.logging.InternalLoggerFactory;
+
+
+/**
+ * Logger factory which suppresses all log messages.
+ *
+ * @author The Netty Project (netty-dev@lists.jboss.org)
+ * @author Trustin Lee (tlee@redhat.com)
+ *
+ * @version $Rev$, $Date$
+ *
+ */
+public class SilentLoggerFactory extends InternalLoggerFactory {
+
+    @Override
+    public InternalLogger newInstance(final String name) {
+        return new InternalLogger() {
+            public void debug(String msg) {
+                // NOOP
+            }
+
+            public void debug(String msg, Throwable cause) {
+                // NOOP
+            }
+
+            public void error(String msg) {
+                // NOOP
+            }
+
+            public void error(String msg, Throwable cause) {
+                // NOOP
+            }
+
+            public void info(String msg) {
+                // NOOP
+            }
+
+            public void info(String msg, Throwable cause) {
+                // NOOP
+            }
+
+            public boolean isDebugEnabled() {
+                return true;
+            }
+
+            public boolean isErrorEnabled() {
+                return true;
+            }
+
+            public boolean isInfoEnabled() {
+                return true;
+            }
+
+            public boolean isWarnEnabled() {
+                return true;
+            }
+
+            public void warn(String msg) {
+                // NOOP
+            }
+
+            public void warn(String msg, Throwable cause) {
+                // NOOP
+            }
+
+            @Override
+            public String toString() {
+                return name;
+            }
+        };
+    }
+}