[Pyobjc-dev] test for integer handling by undoManager

[David E. <epp...@ic...>]

# test ability of int argument to pass through undo and then
# be used as parameter to another routine expecting an int
#
# the actual routine I want to use is
# NSTableView.editColumn_row_withEvent_select_
# but that involves setting up a UI; instead use NSIndexSpecifier

from Foundation import NSObject, NSUndoManager, NSIndexSpecifier

class TestUndoInt (NSObject):
    undo = NSUndoManager.alloc().init()
    idx = NSIndexSpecifier.alloc().init()
    idx.setIndex_(0)

    def test(self,i):
        self.undo.prepareWithInvocationTarget_(self).test(self.idx.index())
        self.idx.setIndex_(i)

# test that undo works
x = TestUndoInt.alloc().init()
x.test(3)
assert(x.idx.index() == 3)
x.undo.undo()
assert(x.idx.index() == 0)

--
David Eppstein       UC Irvine Dept. of Information & Computer Science
epp...@ic... http://www.ics.uci.edu/~eppstein/