add test for empty path in getPathTitle()

Author: vladak

opengrok-web/src/test/java/org/opengrok/web/PageConfigTest.java

@@ -738,7 +738,6 @@ public String getPathInfo() {
         assertEquals("path <foo> - OpenGrok cross reference for /path <foo>", cfg.getPathTitle());
     }
 
-
     @Test
     void testGetPathTitleRevision() {
         HttpServletRequest req = new DummyHttpServletRequest() {
@@ -760,6 +759,19 @@ public String getParameter(String name) {
         assertEquals("bar (revision 42) - OpenGrok cross reference for /bar", cfg.getPathTitle());
     }
 
+    @Test
+    void testGetPathTitleEmptyPath() {
+        HttpServletRequest req = new DummyHttpServletRequest() {
+            @Override
+            public String getPathInfo() {
+                return "";
+            }
+        };
+
+        PageConfig cfg = PageConfig.get(req);
+        assertEquals("/ - OpenGrok cross reference for /", cfg.getPathTitle());
+    }
+
     @Test
     void testGetHistoryTitle() {
         HttpServletRequest req = new DummyHttpServletRequest() {