Index: trunk/test/unit/org/openstreetmap/josm/actions/FullscreenToggleActionTest.java
===================================================================
--- trunk/test/unit/org/openstreetmap/josm/actions/FullscreenToggleActionTest.java	(revision 11278)
+++ trunk/test/unit/org/openstreetmap/josm/actions/FullscreenToggleActionTest.java	(revision 11278)
@@ -0,0 +1,31 @@
+// License: GPL. For details, see LICENSE file.
+package org.openstreetmap.josm.actions;
+
+import org.junit.Rule;
+import org.junit.Test;
+import org.openstreetmap.josm.testutils.JOSMTestRules;
+
+import edu.umd.cs.findbugs.annotations.SuppressFBWarnings;
+
+/**
+ * Test {@link FullscreenToggleAction}
+ */
+public class FullscreenToggleActionTest {
+    /**
+     * Setup test.
+     */
+    @Rule
+    @SuppressFBWarnings(value = "URF_UNREAD_PUBLIC_OR_PROTECTED_FIELD")
+    public JOSMTestRules test = new JOSMTestRules().platform().commands();
+
+    /**
+     * Test {@link FullscreenToggleAction}
+     */
+    @Test
+    public void testFullscreenToggleAction() {
+        FullscreenToggleAction action = new FullscreenToggleAction();
+        // Cannot really test it in headless mode, but at least check we can toggle the action without error
+        action.actionPerformed(null);
+        action.actionPerformed(null);
+    }
+}