Index: trunk/test/unit/org/openstreetmap/josm/gui/util/Tag2LinkTestIT.java
===================================================================
--- trunk/test/unit/org/openstreetmap/josm/gui/util/Tag2LinkTestIT.java	(revision 15679)
+++ trunk/test/unit/org/openstreetmap/josm/gui/util/Tag2LinkTestIT.java	(revision 15679)
@@ -0,0 +1,30 @@
+// License: GPL. For details, see LICENSE file.
+package org.openstreetmap.josm.gui.util;
+
+import edu.umd.cs.findbugs.annotations.SuppressFBWarnings;
+import org.junit.Assert;
+import org.junit.ClassRule;
+import org.junit.Test;
+import org.openstreetmap.josm.testutils.JOSMTestRules;
+
+/**
+ * Integration tests for the {@link Tag2Link}
+ */
+public class Tag2LinkTestIT {
+
+    /**
+     * Setup rule
+     */
+    @ClassRule
+    @SuppressFBWarnings(value = "URF_UNREAD_PUBLIC_OR_PROTECTED_FIELD")
+    public static JOSMTestRules test = new JOSMTestRules();
+
+    /**
+     * Integration test of function {@link Tag2Link#initialize()}.
+     */
+    @Test
+    public void testInitialize() {
+        Tag2Link.initialize();
+        Assert.assertTrue("obtails at least 40 rules", Tag2Link.wikidataRules.size() > 40);
+    }
+}