Index: trunk/test/unit/org/openstreetmap/josm/tools/MediawikiTest.java
===================================================================
--- trunk/test/unit/org/openstreetmap/josm/tools/MediawikiTest.java	(revision 16988)
+++ trunk/test/unit/org/openstreetmap/josm/tools/MediawikiTest.java	(revision 16988)
@@ -0,0 +1,23 @@
+// License: GPL. For details, see LICENSE file.
+package org.openstreetmap.josm.tools;
+
+import static org.junit.Assert.assertEquals;
+
+import org.junit.Test;
+
+/**
+ * Unit tests of {@link Mediawiki}.
+ */
+public class MediawikiTest {
+
+    /**
+     * Test of {@link Mediawiki#getImageUrl}
+     */
+    @Test
+    public void testImageUrl() {
+        assertEquals("https://upload.wikimedia.org/wikipedia/commons/1/18/OpenJDK_logo.svg",
+                Mediawiki.getImageUrl("https://upload.wikimedia.org/wikipedia/commons", "OpenJDK_logo.svg"));
+        assertEquals("https://upload.wikimedia.org/wikipedia/commons/1/18/OpenJDK_logo.svg",
+                Mediawiki.getImageUrl("https://upload.wikimedia.org/wikipedia/commons/", "OpenJDK_logo.svg"));
+    }
+}