Add a test case for missing attributes in filters, which was previously
causing an NPE. (FELIX-2401)


git-svn-id: https://svn.apache.org/repos/asf/felix/trunk@957239 13f79535-47bb-0310-9956-ffa450edef68
diff --git a/framework/src/test/java/org/apache/felix/framework/FilterTest.java b/framework/src/test/java/org/apache/felix/framework/FilterTest.java
new file mode 100644
index 0000000..ceb1114
--- /dev/null
+++ b/framework/src/test/java/org/apache/felix/framework/FilterTest.java
@@ -0,0 +1,46 @@
+/*
+ * 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.felix.framework;
+
+import java.util.Dictionary;
+import java.util.Hashtable;
+import junit.framework.TestCase;
+import org.osgi.framework.Filter;
+import org.osgi.framework.FrameworkUtil;
+
+public class FilterTest extends TestCase
+{
+    public void testMissingAttribute()
+    {
+        Dictionary dict = new Hashtable();
+        dict.put("one", "one-value");
+        dict.put("two", "two-value");
+        dict.put("three", "three-value");
+        Filter filter = null;
+        try
+        {
+            filter = FrameworkUtil.createFilter("(missing=value)");
+        }
+        catch (Exception ex)
+        {
+            assertTrue("Filter should parse: " + ex, false);
+        }
+        assertFalse("Filter should not match: " + filter, filter.match(dict));
+    }
+}