widget_tests.py 文件源码

def checkParam(self, widget, name, value, expected=_sentinel,
                   conv=False, eq=None):
        widget[name] = value
        if expected is _sentinel:
            expected = value
        if conv:
            expected = conv(expected)
        if self._stringify or not self.wantobjects:
            if isinstance(expected, tuple):
                expected = tkinter._join(expected)
            else:
                expected = str(expected)
        if eq is None:
            eq = tcl_obj_eq
        self.assertEqual2(widget[name], expected, eq=eq)
        self.assertEqual2(widget.cget(name), expected, eq=eq)
        # XXX
        if not isinstance(widget, Scale):
            t = widget.configure(name)
            self.assertEqual(len(t), 5)
            self.assertEqual2(t[4], expected, eq=eq)