edit command now uses options decorator

cmd2.py

@@ -1589,13 +1589,11 @@ def _last_matching(self, arg):
         except IndexError:
             return None
 
-    def do_edit(self, arg):
-        """Edit a file or command in a text editor.
-
-    Usage:  edit [N]|[file_path]
-
+    @options([], arg_desc="""[N]|[file_path]
     * N         - Number of command (from history), or `*` for all commands in history (default: last command)
-    * file_path - path to a file to open in editor
+    * file_path - path to a file to open in editor""")
+    def do_edit(self, arg, opts=None):
+        """Edit a file or command in a text editor.
 
 The editor used is determined by the ``editor`` settable parameter.
 "set editor (program-name)" to change or set the EDITOR environment variable.
@@ -1605,15 +1603,16 @@ def do_edit(self, arg):
 
 Edited commands are always run after the editor is closed.
 
-Edited files are run on close if the ``autorun_on_edit`` settable parameter is True."""
+Edited files are run on close if the ``autorun_on_edit`` settable parameter is True.
+"""
         if not self.editor:
             raise EnvironmentError("Please use 'set editor' to specify your text editing program of choice.")
         filename = None
-        if arg:
+        if arg and arg[0]:
             try:
-                history_item = self._last_matching(int(arg))
+                history_item = self._last_matching(int(arg[0]))
             except ValueError:
-                filename = arg
+                filename = arg[0]
                 history_item = ''
         else:
             try:

tests/test_cmd2.py

@@ -751,7 +751,7 @@ def test_edit_file_with_spaces(base_app, request, monkeypatch):
     test_dir = os.path.dirname(request.module.__file__)
     filename = os.path.join(test_dir, 'my commands.txt')
 
-    run_cmd(base_app, 'edit {}'.format(filename))
+    run_cmd(base_app, 'edit "{}"'.format(filename))
 
     # We think we have an editor, so should expect a system call
     m.assert_called_once_with('"{}" "{}"'.format(base_app.editor, filename))
@@ -911,7 +911,10 @@ def test_default_to_shell_unknown(shell_app):
 def test_default_to_shell_good(capsys):
     app = cmd2.Cmd()
     app.default_to_shell = True
-    line = 'ls'
+    if sys.platform.startswith('win'):
+        line = 'dir'
+    else:
+        line = 'ls'
     statement = app.parser_manager.parsed(line)
     retval = app.default(statement)
     assert not retval