filtering of collections.

[utils] / support / general / src / test / java / org / wamblee / collections / CollectionFilterTest.java

diff --git a/support/general/src/test/java/org/wamblee/collections/CollectionFilterTest.java b/support/general/src/test/java/org/wamblee/collections/CollectionFilterTest.java
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index 0000000..1e56eac
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+++ b/support/general/src/test/java/org/wamblee/collections/CollectionFilterTest.java
@@ -0,0 +1,42 @@
+/*
+ * Copyright 2008 the original author or authors.
+ * 
+ * Licensed 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.wamblee.collections;
+
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.List;
+
+import org.wamblee.conditions.Condition;
+import org.wamblee.test.AssertionUtils;
+
+import junit.framework.TestCase;
+
+public class CollectionFilterTest extends TestCase {
+       
+       public void testFilter() { 
+               List<String> list = Arrays.asList(new String[] { "x", "y", "z", "y" }); 
+               List<String> result = new ArrayList<String>();
+               CollectionFilter.filter(list, result, 
+                               new Condition<String>() { 
+                       @Override
+                       public boolean matches(String aObject) {
+                               return aObject.equals("y");
+                       }
+               });
+               AssertionUtils.assertEquals(new String[] { "y", "y" }, result.toArray());
+       }
+
+}