def test_casting(self):
s = self.shd(1001)
l = hprof.cast(s, self.lst)
o = hprof.cast(s, self.obj)
# casting upward
self.assertIs(hprof.cast(s, self.shd), s)
self.assertEqual(hprof.cast(s, self.lst), s)
self.assertEqual(hprof.cast(s, self.obj), s)
# casting downward
self.assertEqual(hprof.cast(o, self.obj), s)
self.assertEqual(hprof.cast(o, self.lst), s)
self.assertIs(hprof.cast(o, self.shd), s)
def test_refs_to_class(self):
_, string = heap._create_class(self, self.names['str'], self.obj, {},
('chars', ), (jtype.object, ))
o = hprof.cast(string, self.obj)
c = hprof.cast(string, self.cls)
self.assertIs(o, string)
self.assertIs(c, string)
with self.assertRaises(TypeError):
hprof.cast(string, string)
with self.assertRaises(TypeError):
hprof.cast(string, self.lst)
def test_unref(self):
s = self.shd(1234)
o = hprof.cast(s, self.obj)
self.assertIs(hprof.cast(o), s)
def test_bad_downcast(self):
s = self.shd(1033)
o = hprof.cast(s, self.obj)
with self.assertRaises(TypeError):
hprof.cast(o, self.cls)
def test_bad_cast(self):
s = self.shd(1020)
with self.assertRaises(TypeError):
hprof.cast(s, self.java.lang.Class)
def test_refs(self):
_, extraclass = heap._create_class(self, self.names['ext'], self.shd,
{}, ('shadow', ), (jtype.int, ))
e = extraclass(0xbadf00d)
self.obj._hprof_ifieldvals.__set__(e, (1111, ))
self.lst._hprof_ifieldvals.__set__(e, (708, ))
self.shd._hprof_ifieldvals.__set__(e, (2223, 33))
extraclass._hprof_ifieldvals.__set__(e, (10, ))
self.assertEqual(e.shadow, 10)
self.assertEqual(e.unique, 33)
self.assertEqual(e.next, 708)
self.assertCountEqual(dir(e), ('shadow', 'unique', 'next'))
self.assertEqual(str(e), 'Extra@badf00d')
self.assertEqual(repr(e), '<Extra 0xbadf00d>')
r = heap.Ref(e, extraclass)
self.assertIs(r,
e) # no reason to use Ref when reftype matches exactly.
s = hprof.cast(e, self.shd)
self.assertEqual(s, e)
self.assertEqual(s.shadow, 2223)
self.assertEqual(s.unique, 33)
self.assertEqual(s.next, 708)
self.assertCountEqual(dir(s), ('shadow', 'unique', 'next'))
self.assertEqual(str(s), '<Ref of type Shadower to Extra 0xbadf00d>')
self.assertEqual(repr(s), str(s))
self.assertIsInstance(s, self.obj)
self.assertIsInstance(s, self.lst)
self.assertIsInstance(s, self.shd)
self.assertIsInstance(s, extraclass)
self.assertNotIsInstance(s, self.cls)
l = hprof.cast(e, self.lst)
self.assertEqual(l.shadow, 1111)
self.assertEqual(l, e)
with self.assertRaises(AttributeError):
self.assertEqual(l.unique, 33)
self.assertEqual(l.next, 708)
self.assertCountEqual(dir(l), ('shadow', 'next'))
self.assertEqual(str(l),
'<Ref of type java.util.List to Extra 0xbadf00d>')
self.assertEqual(repr(l), str(l))
self.assertIsInstance(l, self.obj)
self.assertIsInstance(l, self.lst)
self.assertIsInstance(l, self.shd)
self.assertIsInstance(l, extraclass)
self.assertNotIsInstance(l, self.cls)
o = hprof.cast(e, self.obj)
self.assertEqual(o, e)
self.assertEqual(o.shadow, 1111)
with self.assertRaises(AttributeError):
self.assertEqual(o.unique, 33)
with self.assertRaises(AttributeError):
self.assertEqual(o.next, 708)
self.assertCountEqual(dir(o), ('shadow', ))
self.assertEqual(str(o),
'<Ref of type java.lang.Object to Extra 0xbadf00d>')
self.assertEqual(repr(o), str(o))
self.assertIsInstance(o, self.obj)
self.assertIsInstance(o, self.lst)
self.assertIsInstance(o, self.shd)
self.assertIsInstance(o, extraclass)
self.assertNotIsInstance(o, self.cls)