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import sys
import unittest
from PySide2.QtCore import QObject, QCoreApplication, ClassInfo
class TestClassInfo(unittest.TestCase):
def test_metadata(self):
@ClassInfo(author='pyside', url='http://www.pyside.org')
class MyObject(QObject):
pass
o = MyObject()
mo = o.metaObject()
self.assertEqual(mo.classInfoCount(), 2)
ci = mo.classInfo(0) #author
self.assertEqual(ci.name(), 'author')
self.assertEqual(ci.value(), 'pyside')
ci = mo.classInfo(1) #url
self.assertEqual(ci.name(), 'url')
self.assertEqual(ci.value(), 'http://www.pyside.org')
def test_verify_metadata_types(self):
valid_dict = { '123': '456' }
invalid_dict_1 = { '123': 456 }
invalid_dict_2 = { 123: 456 }
invalid_dict_3 = { 123: '456' }
ClassInfo(**valid_dict)
self.assertRaises(TypeError, ClassInfo, **invalid_dict_1)
# assertRaises only allows for string keywords, so a `try` must be used here.
try:
ClassInfo(**invalid_dict_2)
self.fail('ClassInfo() accepted invalid_dict_2!')
except TypeError:
pass
try:
ClassInfo(**invalid_dict_3)
self.fail('ClassInfo() accepted invalid_dict_3!')
except TypeError:
pass
def test_can_not_use_instance_twice(self):
decorator = ClassInfo(author='pyside', url='http://www.pyside.org')
@decorator
class MyObject1(QObject):
pass
class MyObject2(QObject):
pass
self.assertRaises(TypeError, decorator, MyObject2)
def test_can_only_be_used_on_qobjects(self):
def test_function(): pass
self.assertRaises(TypeError, ClassInfo(), test_function)
class NotAQObject(object): pass
self.assertRaises(TypeError, ClassInfo(), NotAQObject)
class QObjectSubclass(QObject): pass
ClassInfo()(QObjectSubclass)
class SubclassOfNativeQObjectSubclass(QCoreApplication): pass
ClassInfo()(SubclassOfNativeQObjectSubclass)
class SubclassOfPythonQObjectSubclass(QObjectSubclass): pass
ClassInfo()(SubclassOfPythonQObjectSubclass)
if __name__ == '__main__':
if sys.version_info[0] < 2:
sys.exit(0)
elif (sys.version_info[0] == 2) and (sys.version_info[1] <= 5):
sys.exit(0)
else:
unittest.main()
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