def test_objcinstance_can_produce_objcprotocol(self):
"""Creating an ObjCInstance for a protocol pointer gives an ObjCProtocol."""
example_protocol_ptr = libobjc.objc_getProtocol(b'ExampleProtocol')
ExampleProtocol = ObjCInstance(example_protocol_ptr)
self.assertEqual(ExampleProtocol, ObjCProtocol('ExampleProtocol'))
self.assertIsInstance(ExampleProtocol, ObjCProtocol)
def test_objcinstance_can_produce_objcmetaclass(self):
"""Creating an ObjCInstance for a metaclass pointer gives an ObjCMetaClass."""
examplemeta_ptr = libobjc.objc_getMetaClass(b"Example")
ExampleMeta = ObjCInstance(examplemeta_ptr)
self.assertEqual(ExampleMeta, ObjCMetaClass("Example"))
self.assertIsInstance(ExampleMeta, ObjCMetaClass)
def test_objcinstance_can_produce_objcclass(self):
"""Creating an ObjCInstance for a class pointer gives an ObjCClass."""
example_ptr = libobjc.objc_getClass(b"Example")
Example = ObjCInstance(example_ptr)
self.assertEqual(Example, ObjCClass("Example"))
self.assertIsInstance(Example, ObjCClass)
def test_class_ivars(self):
"""An Objective-C class can have instance variables."""
class Ivars(NSObject):
object = objc_ivar(objc_id)
int = objc_ivar(c_int)
rect = objc_ivar(NSRect)
ivars = Ivars.alloc().init()
set_ivar(ivars, 'object', at('foo').ptr)
set_ivar(ivars, 'int', c_int(12345))
set_ivar(ivars, 'rect', NSMakeRect(12, 34, 56, 78))
s = ObjCInstance(get_ivar(ivars, 'object'))
self.assertEqual(str(s), 'foo')
i = get_ivar(ivars, 'int')
self.assertEqual(i.value, 12345)
r = get_ivar(ivars, 'rect')
self.assertEqual(r.origin.x, 12)
self.assertEqual(r.origin.y, 34)
self.assertEqual(r.size.width, 56)
self.assertEqual(r.size.height, 78)
def test_no_convert_return(self):
Example = ObjCClass("Example")
example = Example.alloc().init()
res = example.toString(convert_result=False)
self.assertNotIsInstance(res, ObjCInstance)
self.assertEqual(str(ObjCInstance(res)), "This is an ObjC Example object")
def test_method_varargs_send(self):
"""A variadic method can be called using send_message."""
NSString = ObjCClass('NSString')
formatted = send_message(
NSString,
'stringWithFormat:',
at('This is a %@ with %@'),
varargs=[at('string'), at('placeholders')],
restype=objc_id,
argtypes=[objc_id],
)
self.assertEqual(str(ObjCInstance(formatted)), 'This is a string with placeholders')