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import sys
import gc
import unittest
import warnings
from gi.repository import GLib
from gi import PyGIDeprecationWarning
from .helper import capture_glib_warnings
class Idle(GLib.Idle):
def __init__(self, loop):
GLib.Idle.__init__(self)
self.count = 0
self.set_callback(self.callback, loop)
def callback(self, loop):
self.count += 1
return True
class MySource(GLib.Source):
def __init__(self):
GLib.Source.__init__(self)
def prepare(self):
return True, 0
def check(self):
return True
def dispatch(self, callback, args):
return callback(*args)
class TestSource(unittest.TestCase):
def timeout_callback(self, loop):
loop.quit()
def my_callback(self, loop):
self.pos += 1
return True
def setup_timeout(self, loop):
timeout = GLib.Timeout(500)
timeout.set_callback(self.timeout_callback, loop)
timeout.attach()
def test_sources(self):
loop = GLib.MainLoop()
self.setup_timeout(loop)
idle = Idle(loop)
self.assertEqual(idle.get_context(), None)
idle.attach()
self.assertEqual(idle.get_context(), GLib.main_context_default())
self.pos = 0
m = MySource()
self.assertEqual(m.get_context(), None)
m.set_callback(self.my_callback, loop)
m.attach()
self.assertEqual(m.get_context(), GLib.main_context_default())
loop.run()
m.destroy()
idle.destroy()
self.assertGreater(self.pos, 0)
self.assertGreaterEqual(idle.count, 0)
self.assertTrue(m.is_destroyed())
self.assertTrue(idle.is_destroyed())
def test_source_prepare(self):
# this test may not terminate if prepare() is wrapped incorrectly
dispatched = [False]
loop = GLib.MainLoop()
class CustomTimeout(GLib.Source):
def prepare(self):
return (False, 10)
def check(self):
return True
def dispatch(self, callback, args):
dispatched[0] = True
loop.quit()
return False
source = CustomTimeout()
source.attach()
source.set_callback(dir)
loop.run()
assert dispatched[0]
def test_is_destroyed_simple(self):
s = GLib.Source()
self.assertFalse(s.is_destroyed())
s.destroy()
self.assertTrue(s.is_destroyed())
c = GLib.MainContext()
s = GLib.Source()
s.attach(c)
self.assertFalse(s.is_destroyed())
s.destroy()
self.assertTrue(s.is_destroyed())
def test_is_destroyed_context(self):
def f():
c = GLib.MainContext()
s = GLib.Source()
s.attach(c)
return s
s = f()
gc.collect()
gc.collect()
self.assertTrue(s.is_destroyed())
def test_remove(self):
s = GLib.idle_add(dir)
self.assertEqual(GLib.source_remove(s), True)
# Removing sources not found cause critical
with capture_glib_warnings(allow_criticals=True):
# s is now removed, should fail now
self.assertEqual(GLib.source_remove(s), False)
# accepts large source IDs (they are unsigned)
self.assertEqual(GLib.source_remove(GLib.MAXINT32), False)
self.assertEqual(GLib.source_remove(GLib.MAXINT32 + 1), False)
self.assertEqual(GLib.source_remove(GLib.MAXUINT32), False)
def test_recurse_property(self):
s = GLib.Idle()
self.assertTrue(s.can_recurse in [False, True])
s.can_recurse = False
self.assertFalse(s.can_recurse)
def test_priority(self):
s = GLib.Idle()
self.assertEqual(s.priority, GLib.PRIORITY_DEFAULT_IDLE)
s.priority = GLib.PRIORITY_HIGH
self.assertEqual(s.priority, GLib.PRIORITY_HIGH)
s = GLib.Idle(GLib.PRIORITY_LOW)
self.assertEqual(s.priority, GLib.PRIORITY_LOW)
s = GLib.Timeout(1, GLib.PRIORITY_LOW)
self.assertEqual(s.priority, GLib.PRIORITY_LOW)
s = GLib.Source()
self.assertEqual(s.priority, GLib.PRIORITY_DEFAULT)
def test_get_current_time(self):
# Note, deprecated API
s = GLib.Idle()
with warnings.catch_warnings(record=True) as w:
warnings.simplefilter("always")
time = s.get_current_time()
self.assertTrue(issubclass(w[0].category, PyGIDeprecationWarning))
self.assertTrue(isinstance(time, float))
# plausibility check, and check magnitude of result
self.assertGreater(time, 1300000000.0)
self.assertLess(time, 2000000000.0)
def test_add_remove_poll(self):
# FIXME: very shallow test, only verifies the API signature
pollfd = GLib.PollFD(99, GLib.IOCondition.IN | GLib.IOCondition.HUP)
self.assertEqual(pollfd.fd, 99)
source = GLib.Source()
source.add_poll(pollfd)
source.remove_poll(pollfd)
def test_out_of_scope_before_dispatch(self):
# https://bugzilla.gnome.org/show_bug.cgi?id=504337
GLib.Timeout(20)
GLib.Idle()
@unittest.skipIf(sys.platform == "darwin", "hangs")
def test_finalize(self):
self.dispatched = False
self.finalized = False
class S(GLib.Source):
def prepare(s):
return (True, 1)
def dispatch(s, callback, args):
self.dispatched = True
return False
def finalize(s):
self.finalized = True
source = S()
source.attach()
self.assertFalse(self.finalized)
self.assertFalse(source.is_destroyed())
while source.get_context().iteration(False):
pass
source.destroy()
self.assertTrue(self.dispatched)
self.assertFalse(self.finalized)
self.assertTrue(source.is_destroyed())
del source
gc.collect()
gc.collect()
self.assertTrue(self.finalized)
def test_python_unref_with_active_source(self):
# Tests a Python derived Source which is free'd in the context of
# Python, but which was attached to a MainContext (via source.attach())
self.dispatched = False
self.finalized = False
class S(GLib.Source):
def prepare(s):
return (True, 1)
def check(s):
pass
def dispatch(s, callback, args):
self.dispatched = True
return False
def finalize(s):
self.finalized = True
context = GLib.MainContext.new()
source = S()
id_ = source.attach(context)
self.assertFalse(self.finalized)
self.assertFalse(source.is_destroyed())
# Delete the source from Python, it should detach
del source
gc.collect()
gc.collect()
while context.iteration(may_block=False):
pass
assert self.finalized
assert not self.dispatched
assert context.find_source_by_id(id_) is None
@unittest.skipIf(
sys.implementation.name == "pypy", "PyPy doesn't __del__ immediately"
)
def test_python_unref_during_dispatch(self):
# Tests a Python derived Source which is free'd in the context of
# Python, while being dispatched
# NOTE: Finalize is explicitly called by __del__ for consistency
self.dispatched = False
self.finalized = False
class S(GLib.Source):
def __init__(s, func=None):
s.func = func
def prepare(s):
return (True, 1)
def check(s):
pass
def dispatch(s, callback, args):
self.dispatched = True
self.source = None
return False
def finalize(s):
self.finalized = True
context = GLib.MainContext.new()
self.source = S()
id_ = self.source.attach(context)
while context.iteration(may_block=False):
pass
assert self.source is None
assert context.find_source_by_id(id_) is None
assert self.finalized
assert self.dispatched
def test_extra_init_args(self):
class SourceWithInitArgs(GLib.Source):
def __init__(self, arg, kwarg=None):
super().__init__()
self.arg = arg
self.kwarg = kwarg
source = SourceWithInitArgs(1, kwarg=2)
self.assertEqual(source.arg, 1)
self.assertEqual(source.kwarg, 2)
@unittest.skipIf(sys.platform == "darwin", "hangs")
class TestUserData(unittest.TestCase):
def test_idle_no_data(self):
ml = GLib.MainLoop()
def cb():
ml.quit()
id = GLib.idle_add(cb)
self.assertEqual(
ml.get_context().find_source_by_id(id).priority, GLib.PRIORITY_DEFAULT_IDLE
)
ml.run()
def test_timeout_no_data(self):
ml = GLib.MainLoop()
def cb():
ml.quit()
id = GLib.timeout_add(1, cb)
self.assertEqual(
ml.get_context().find_source_by_id(id).priority, GLib.PRIORITY_DEFAULT
)
ml.run()
def test_idle_data(self):
ml = GLib.MainLoop()
def cb(data):
data["called"] = True
ml.quit()
data = {}
id = GLib.idle_add(cb, data)
self.assertEqual(
ml.get_context().find_source_by_id(id).priority, GLib.PRIORITY_DEFAULT_IDLE
)
ml.run()
self.assertTrue(data["called"])
def test_idle_multidata(self):
ml = GLib.MainLoop()
def cb(data, data2):
data["called"] = True
data["data2"] = data2
ml.quit()
data = {}
id = GLib.idle_add(cb, data, "hello")
self.assertEqual(
ml.get_context().find_source_by_id(id).priority, GLib.PRIORITY_DEFAULT_IDLE
)
ml.run()
self.assertTrue(data["called"])
self.assertEqual(data["data2"], "hello")
def test_timeout_data(self):
ml = GLib.MainLoop()
def cb(data):
data["called"] = True
ml.quit()
data = {}
id = GLib.timeout_add(1, cb, data)
self.assertEqual(
ml.get_context().find_source_by_id(id).priority, GLib.PRIORITY_DEFAULT
)
ml.run()
self.assertTrue(data["called"])
def test_timeout_multidata(self):
ml = GLib.MainLoop()
def cb(data, data2):
data["called"] = True
data["data2"] = data2
ml.quit()
data = {}
id = GLib.timeout_add(1, cb, data, "hello")
self.assertEqual(
ml.get_context().find_source_by_id(id).priority, GLib.PRIORITY_DEFAULT
)
ml.run()
self.assertTrue(data["called"])
self.assertEqual(data["data2"], "hello")
def test_idle_no_data_priority(self):
ml = GLib.MainLoop()
def cb():
ml.quit()
id = GLib.idle_add(cb, priority=GLib.PRIORITY_HIGH)
self.assertEqual(
ml.get_context().find_source_by_id(id).priority, GLib.PRIORITY_HIGH
)
ml.run()
def test_timeout_no_data_priority(self):
ml = GLib.MainLoop()
def cb():
ml.quit()
id = GLib.timeout_add(1, cb, priority=GLib.PRIORITY_HIGH)
self.assertEqual(
ml.get_context().find_source_by_id(id).priority, GLib.PRIORITY_HIGH
)
ml.run()
def test_idle_data_priority(self):
ml = GLib.MainLoop()
def cb(data):
data["called"] = True
ml.quit()
data = {}
id = GLib.idle_add(cb, data, priority=GLib.PRIORITY_HIGH)
self.assertEqual(
ml.get_context().find_source_by_id(id).priority, GLib.PRIORITY_HIGH
)
ml.run()
self.assertTrue(data["called"])
def test_timeout_data_priority(self):
ml = GLib.MainLoop()
def cb(data):
data["called"] = True
ml.quit()
data = {}
id = GLib.timeout_add(1, cb, data, priority=GLib.PRIORITY_HIGH)
self.assertEqual(
ml.get_context().find_source_by_id(id).priority, GLib.PRIORITY_HIGH
)
ml.run()
self.assertTrue(data["called"])
def cb_no_data(self):
self.loop.quit()
def test_idle_method_callback_no_data(self):
self.loop = GLib.MainLoop()
GLib.idle_add(self.cb_no_data)
self.loop.run()
def cb_with_data(self, data):
data["called"] = True
self.loop.quit()
def test_idle_method_callback_with_data(self):
self.loop = GLib.MainLoop()
data = {}
GLib.idle_add(self.cb_with_data, data)
self.loop.run()
self.assertTrue(data["called"])
|
