add quoted examples (#76858)

docs/docsite/rst/user_guide/playbooks_tests.rst

@@ -317,6 +317,16 @@ The following tests can provide information about a path on the controller
         msg: "path is a mount"
       when: mypath is mount
 
+    - debug:
+        msg: "path is a directory"
+      when: mypath is directory
+      vars:
+         mypath: /my/patth
+
+    - debug:
+        msg: "path is a file"
+      when: "'/my/path' is file"
+
 
 Testing size formats
 ====================