332 lines
8.6 KiB
Python
332 lines
8.6 KiB
Python
#
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# Gramps - a GTK+/GNOME based genealogy program
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#
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# Copyright (C) 2000-2007 Donald N. Allingham
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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#
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# gen/utils/test/callback_test.py
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# $Id$
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import unittest
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from test import test_util as tu
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tu.path_append_parent()
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from gen.utils.callback import Callback
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try:
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log
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except NameError:
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log = None
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class TestCallback(unittest.TestCase):
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def test_simple(self):
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class TestSignals(Callback):
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__signals__ = {
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'test-signal' : (int,)
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}
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rl = []
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def fn(i,r=rl):
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rl.append(i)
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t = TestSignals()
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t.connect('test-signal',fn)
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t.emit('test-signal',(1,))
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assert len(rl) == 1, "No signal emitted"
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assert rl[0] == 1, "Wrong argument recieved"
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def test_exception_catch(self):
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class TestSignals(Callback):
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__signals__ = {
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'test-signal' : (int,)
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}
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rl = []
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def fn(i,r=rl):
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rl.append(i)
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def borked(i):
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"""
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this intentionally raises a NameError exception
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FIXME: could use an explanation
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or perhaps some explicit Try/Except code
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"""
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rubish.append(i)
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t = TestSignals()
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def null(s):
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pass
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global log
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_log = log
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log = null
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t.connect('test-signal',borked)
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t.connect('test-signal',fn)
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t.emit('test-signal',(1,))
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log = _log
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assert len(rl) == 1, "No signal emitted"
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assert rl[0] == 1, "Wrong argument recieved"
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def test_disconnect(self):
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class TestSignals(Callback):
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__signals__ = {
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'test-signal' : (int,)
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}
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rl = []
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def fn(i,r=rl):
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rl.append(i)
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t = TestSignals()
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key = t.connect('test-signal',fn)
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t.emit('test-signal',(1,))
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assert len(rl) == 1, "No signal emitted"
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assert rl[0] == 1, "Wrong argument recieved"
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t.disconnect(key)
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t.emit('test-signal',(1,))
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assert len(rl) == 1, "Callback not disconnected"
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assert rl[0] == 1, "Callback not disconnected"
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def test_noargs(self):
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class TestSignals(Callback):
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__signals__ = {
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'test-noargs' : None
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}
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rl = []
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def fn(r=rl):
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rl.append(1)
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t = TestSignals()
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t.connect('test-noargs',fn)
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t.emit('test-noargs')
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assert len(rl) == 1, "No signal emitted"
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assert rl[0] == 1, "Wrong argument recieved"
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def test_no_callback(self):
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class TestSignals(Callback):
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__signals__ = {
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'test-noargs' : None
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}
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t = TestSignals()
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t.emit('test-noargs')
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def test_subclassing(self):
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class TestSignals(Callback):
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__signals__ = {
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'test-signal' : (int,)
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}
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class TestSignalsSubclass(TestSignals):
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__signals__ = {
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'test-sub-signal' : (int,),
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}
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rl = []
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def fn(i,r=rl):
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rl.append(i)
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t = TestSignalsSubclass()
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t.connect('test-signal',fn)
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t.emit('test-signal',(1,))
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assert len(rl) == 1, "No signal emitted"
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assert rl[0] == 1, "Wrong argument recieved"
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t.connect('test-sub-signal',fn)
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t.emit('test-sub-signal',(1,))
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assert len(rl) == 2, "No subclass signal emitted"
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assert rl[1] == 1, "Wrong argument recieved in subclass"
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def test_signal_block(self):
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class TestSignals(Callback):
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__signals__ = {
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'test-signal' : (int,)
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}
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rl = []
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def fn(i,r=rl):
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rl.append(i)
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t = TestSignals()
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t.connect('test-signal',fn)
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t.emit('test-signal',(1,))
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assert len(rl) == 1, "No signal emitted"
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assert rl[0] == 1, "Wrong argument recieved"
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Callback.disable_all_signals()
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t.emit('test-signal',(1,))
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assert len(rl) == 1, "Signal emitted while class blocked"
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Callback.enable_all_signals()
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t.emit('test-signal',(1,))
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assert len(rl) == 2, "Signals not class unblocked"
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t.disable_signals()
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t.emit('test-signal',(1,))
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assert len(rl) == 2, "Signal emitted while instance blocked"
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t.enable_signals()
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t.emit('test-signal',(1,))
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assert len(rl) == 3, "Signals not instance unblocked"
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def test_type_checking(self):
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class TestSignals(Callback):
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__signals__ = {
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'test-int' : (int,),
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'test-list': (list,),
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'test-object': (object,),
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'test-str': (str,),
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'test-float': (float,),
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'test-dict': (dict,),
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'test-lots': (int,str,list, object,float)
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}
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rl = []
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def fn(i,r=rl):
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rl.append(i)
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t = TestSignals()
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t.connect('test-int',fn), t.emit('test-int',(1,))
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assert isinstance(rl[0], int), "not int"
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t.connect('test-list',fn), t.emit('test-list',([1,2],))
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assert isinstance(rl[1], list), "not list"
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t.connect('test-object',fn), t.emit('test-object',(t,))
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assert isinstance(rl[2], object), "not object"
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t.connect('test-float',fn), t.emit('test-float',(2.3,))
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assert isinstance(rl[3], float), "not float"
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t.connect('test-dict',fn), t.emit('test-dict',({1:2},))
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assert isinstance(rl[4], dict), "not dict"
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rl = []
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def fn2(i,s,l, o,f,r=rl):
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rl.append(i)
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t.connect('test-lots',fn2), t.emit('test-lots',(1,'a',[1,2],t,1.2))
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assert isinstance(rl[0], int), "not lots"
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# This should fail because the type of arg1 is wrong
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res=[]
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def fn3(s,r=res):
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res.append(s)
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t._warn = fn3
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t.connect('test-lots',fn2), t.emit('test-lots',('a','a',[1,2],t,1.2))
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assert res[0][0:6] == "Signal", "Type error not detected"
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def test_recursion_block(self):
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class TestSignals(Callback):
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__signals__ = {
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'test-recursion' : (Callback,)
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}
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def fn(cb):
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cb.emit('test-recursion',(t,))
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res=[]
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def fn2(s,r=res):
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res.append(s)
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t = TestSignals()
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t._warn = fn2
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t.connect('test-recursion',fn)
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try:
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t.emit('test-recursion',(t,))
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except RuntimeError:
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assert False, "signal recursion not blocked1."
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assert res[0][0:6] == "Signal", "signal recursion not blocked"
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def test_multisignal_recursion_block(self):
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class TestSignals(Callback):
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__signals__ = {
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'test-top' : (Callback,),
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'test-middle' : (Callback,),
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'test-bottom' : (Callback,)
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}
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def top(cb):
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cb.emit('test-middle',(t,))
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def middle(cb):
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cb.emit('test-bottom',(t,))
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def bottom(cb):
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cb.emit('test-top',(t,))
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res=[]
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def fn2(s,r=res):
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res.append(s)
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t = TestSignals()
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t._warn = fn2
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t.connect('test-top',top)
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t.connect('test-middle',middle)
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t.connect('test-bottom',bottom)
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try:
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t.emit('test-top',(t,))
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except RuntimeError:
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assert False, "multisignal recursion not blocked1."
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assert res[0][0:6] == "Signal", "multisignal recursion not blocked"
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if __name__ == "__main__":
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unittest.main()
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