Source

pyobjc / pyobjc-core / PyObjCTest / test_protocolNamed.py

import objc
import objc._objc
from objc._protocols import PROTOCOL_CACHE
from PyObjCTools.TestSupport import *

class TestProtocols (TestCase):
    def testBasic(self):
        PROTOCOL_CACHE.clear()
        p = objc.protocolNamed('NSObject')
        self.assertIsInstance(p, objc.formal_protocol)

    def testNoProtocol(self):
        self.assertRaises(objc.ProtocolError, objc.protocolNamed, "PyObjCFooBarProtocol")

    def testBasic2(self):
        orig_protocolsForProcess = objc._objc.protocolsForProcess
        try:
            objc._objc.protocolsForProcess = lambda: []
            PROTOCOL_CACHE.clear()

            p = objc.protocolNamed('NSObject')
            self.assertIsInstance(p, objc.formal_protocol)

        finally:
            objc._objc.protocolsForProcess = orig_protocolsForProcess

if __name__ == "__main__":
    main()
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