add portabledeviceapi test

comtypes/test/test_portabledevice.py

@@ -0,0 +1,60 @@
+import ctypes
+import unittest as ut
+
+import comtypes
+import comtypes.client
+
+comtypes.client.GetModule("portabledeviceapi.dll")
+import comtypes.gen.PortableDeviceApiLib as port_api
+
+comtypes.client.GetModule("portabledevicetypes.dll")
+import comtypes.gen.PortableDeviceTypesLib as port_types
+
+
+################################################################
+#
+# TODO:
+#
+# It seems bad that only external test like this can verify
+# the behavior of `comtypes` implementation.
+# Find a safe way to do this, like having a virtual portable
+# device and using the COM API for it.
+#
+################################################################
+
+
+class Test_IPortableDevice(ut.TestCase):
+    # To avoid damaging or changing the environment, do not CREATE, DELETE or UPDATE!
+    # Do READ only!
+    def setUp(self):
+        info = comtypes.client.CreateObject(
+            port_types.PortableDeviceValues().IPersist_GetClassID(),
+            clsctx=comtypes.CLSCTX_INPROC_SERVER,
+            interface=port_types.IPortableDeviceValues,
+        )
+        mng = comtypes.client.CreateObject(
+            port_api.PortableDeviceManager().IPersist_GetClassID(),
+            clsctx=comtypes.CLSCTX_INPROC_SERVER,
+            interface=port_api.IPortableDeviceManager,
+        )
+        p_id_cnt = ctypes.pointer(ctypes.c_ulong())
+        mng.GetDevices(ctypes.POINTER(ctypes.c_wchar_p)(), p_id_cnt)
+        if p_id_cnt.contents.value == 0:
+            self.skipTest("There is no portable device in the environment.")
+        dev_ids = (ctypes.c_wchar_p * p_id_cnt.contents.value)()
+        mng.GetDevices(ctypes.cast(dev_ids, ctypes.POINTER(ctypes.c_wchar_p)), p_id_cnt)
+        self.device = comtypes.client.CreateObject(
+            port_api.PortableDevice().IPersist_GetClassID(),
+            clsctx=comtypes.CLSCTX_INPROC_SERVER,
+            interface=port_api.IPortableDevice,
+        )
+        self.device.Open(list(dev_ids)[0], info)
+
+    def test_EnumObjects(self):
+        enumobj = self.device.Content().EnumObjects(ctypes.c_ulong(0), "DEVICE", None)
+        self.assertIsInstance(enumobj, port_api.IEnumPortableDeviceObjectIDs)
+        [_ for _ in enumobj]  # is iterable?
+
+
+if __name__ == "__main__":
+    ut.main()