Fix some tests using removed class member

Author: cecille

src/controller/python/chip/native/__init__.py

@@ -88,6 +88,10 @@ def raise_on_error(self) -> None:
             if exception is not None:  # Ensure exception is not None to avoid mypy error and only raise valid exceptions
                 raise exception
 
+    @classmethod
+    def from_code(cls, code):
+        return cls(code=code, line=0, file=ctypes.c_void_p())
+
     @property
     def is_success(self) -> bool:
         return self.code == 0

src/python_testing/TC_CADMIN_1_9.py

@@ -31,6 +31,7 @@
 from chip import ChipDeviceCtrl
 from chip.ChipDeviceCtrl import CommissioningParameters
 from chip.exceptions import ChipStackError
+from chip.native import PyChipError
 from matter_testing_support import MatterBaseTest, TestStep, async_test_body, default_matter_test_main
 from mobly import asserts
 
@@ -74,7 +75,7 @@ async def CommissionOnNetwork(
             await self.th2.CommissionOnNetwork(
                 nodeId=self.dut_node_id, setupPinCode=setup_code,
                 filterType=ChipDeviceCtrl.DiscoveryFilterType.LONG_DISCRIMINATOR, filter=self.discriminator)
-        errcode = ctx.exception.chip_error
+        errcode = PyChipError.from_code(ctx.exception.err)
         return errcode
 
     async def CommissionAttempt(

src/python_testing/TC_CGEN_2_4.py

@@ -38,6 +38,7 @@
 from chip import ChipDeviceCtrl
 from chip.ChipDeviceCtrl import CommissioningParameters
 from chip.exceptions import ChipStackError
+from chip.native import PyChipError
 from matter_testing_support import MatterBaseTest, async_test_body, default_matter_test_main
 from mobly import asserts
 
@@ -78,7 +79,7 @@ async def CommissionToStageSendCompleteAndCleanup(
             await self.th2.CommissionOnNetwork(
                 nodeId=self.dut_node_id, setupPinCode=params.setupPinCode,
                 filterType=ChipDeviceCtrl.DiscoveryFilterType.LONG_DISCRIMINATOR, filter=self.discriminator)
-        errcode = ctx.exception.chip_error
+        errcode = PyChipError.from_code(ctx.exception.err)
         asserts.assert_true(errcode.sdk_part == expectedErrorPart, 'Unexpected error type returned from CommissioningComplete')
         asserts.assert_true(errcode.sdk_code == expectedErrCode, 'Unexpected error code returned from CommissioningComplete')
         revokeCmd = Clusters.AdministratorCommissioning.Commands.RevokeCommissioning()