To test Notepad Application

To test Notepad Application : 

Functional Test Cases :
1) new page should be blank and cursor on beginning of first line.
2) the application allows typing
3) the application allows saving
4) the application allows opening a saved instance
5) validate menus and submenus
6) type of data that can be saved (numeric, alphanumeric, special chars)
7) editing the saved data(changing the font size, type, deleting, adding) and saving the changes.
8) saving a blank file.
9) validate file name : renaming file/keeping the default name/duplicate file name/spcl chars in file name

Non-functional Test Cases :
1) do performance testing by opening, say, 100 instances of notepad (possibly by using an automated tool) and determining the response time.
2) check max length of data.