Annotation index: Add a unit test for repeated class path elements

dscho · dscho · commit bf2f2aa23cbe · 2014-02-24T14:57:08.000-06:00
Signed-off-by: Johannes Schindelin &lt;johannes.schindelin@gmx.de&gt;
diff --git a/src/test/java/org/scijava/annotations/DirectoryIndexerTest.java b/src/test/java/org/scijava/annotations/DirectoryIndexerTest.java
@@ -32,6 +32,7 @@
 package org.scijava.annotations;
 
 import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertFalse;
 import static org.junit.Assert.assertNotNull;
 import static org.junit.Assert.assertTrue;
 import static org.junit.Assume.assumeTrue;
@@ -40,12 +41,15 @@
 import java.io.IOException;
 import java.lang.annotation.Annotation;
 import java.net.URL;
+import java.net.URLClassLoader;
 import java.net.URLConnection;
 import java.util.ArrayList;
 import java.util.Collections;
 import java.util.Enumeration;
+import java.util.HashSet;
 import java.util.List;
 import java.util.Map;
+import java.util.Set;
 import java.util.TreeMap;
 
 import org.junit.Test;
@@ -89,6 +93,26 @@ public void testIndexer() throws Exception {
 		testDefaultAnnotations(map);
 	}
 
+	@Test
+	public void testRepeatedClassPathElements() throws Exception {
+		final String suffix = getResourcePath(AnnotatedA.class);
+		final String classURL =
+			getClass().getResource("/" + suffix).toString();
+		final URL classPathURL = new URL(classURL.substring(0,
+			classURL.length() - suffix.length()));
+		final ClassLoader loader = new URLClassLoader(new URL[] {
+			classPathURL, classPathURL
+		});
+		final Set<String> seen = new HashSet<String>();
+		for (final IndexItem<Simple> item :
+				Index.load(Simple.class, loader)) {
+			final String name = item.className();
+			assertFalse(seen.contains(name));
+			seen.add(name);
+		}
+		assertEquals(2, seen.size());
+	}
+
 	public static void
 		testDefaultAnnotations(Map<String, IndexItem<Complex>> map)
 	{
