prompt: We are currently solving the following issue within our repository. Here is the issue text:
  --- BEGIN ISSUE ---
  [PORT] Create test for waterfall cancellation telemetry
  > Port this change from botbuilder-dotnet/master branch:
  https://github.com/microsoft/botbuilder-dotnet/pull/3314
  
  For https://github.com/microsoft/botbuilder-js/issues/1619
  
  
  # Changed projects
  * Microsoft.Bot.Builder.Dialogs.Tests
  
  
  
  
  
  --- END ISSUE ---
  
  Below are some code segments, each from a relevant file. One or more of these files may contain bugs.
  --- BEGIN FILES ---
  Path: `libraries/botbuilder-dialogs/botbuilder/dialogs/waterfall_dialog.py`
  Content:
  ```
  1 # Copyright (c) Microsoft Corporation. All rights reserved.
  2 # Licensed under the MIT License.
  3 
  4 
  5 import uuid
  6 from typing import Coroutine
  7 from botbuilder.core import TurnContext
  8 from botbuilder.schema import ActivityTypes
  9 from .dialog_reason import DialogReason
  10 from .dialog import Dialog
  11 from .dialog_turn_result import DialogTurnResult
  12 from .dialog_context import DialogContext
  13 from .dialog_instance import DialogInstance
  14 from .waterfall_step_context import WaterfallStepContext
  15 
  16 
  17 class WaterfallDialog(Dialog):
  18     PersistedOptions = "options"
  19     StepIndex = "stepIndex"
  20     PersistedValues = "values"
  21     PersistedInstanceId = "instanceId"
  22 
  23     def __init__(self, dialog_id: str, steps: [Coroutine] = None):
  24         super(WaterfallDialog, self).__init__(dialog_id)
  25         if not steps:
  26             self._steps = []
  27         else:
  28             if not isinstance(steps, list):
  29                 raise TypeError("WaterfallDialog(): steps must be list of steps")
  30             self._steps = steps
  31 
  32     def add_step(self, step):
  33         """
  34         Adds a new step to the waterfall.
  35         :param step: Step to add
  36         :return: Waterfall dialog for fluent calls to `add_step()`.
  37         """
  38         if not step:
  39             raise TypeError("WaterfallDialog.add_step(): step cannot be None.")
  40 
  41         self._steps.append(step)
  42         return self
  43 
  44     async def begin_dialog(
  45         self, dialog_context: DialogContext, options: object = None
  46     ) -> DialogTurnResult:
  47 
  48         if not dialog_context:
  49             raise TypeError("WaterfallDialog.begin_dialog(): dc cannot be None.")
  50 
  51         # Initialize waterfall state
  52         state = dialog_context.active_dialog.state
  53 
  54         instance_id = uuid.uuid1().__str__()
  55         state[self.PersistedOptions] = options
  56         state[self.PersistedValues] = {}
  57         state[self.PersistedInstanceId] = instance_id
  58 
  59         properties = {}
  60         properties["DialogId"] = self.id
  61         properties["InstanceId"] = instance_id
  62         self.telemetry_client.track_event("WaterfallStart", properties)
  63 
  64         # Run first stepkinds
  65         return await self.run_step(dialog_context, 0, DialogReason.BeginCalled, None)
  66 
  67     async def continue_dialog(  # pylint: disable=unused-argument,arguments-differ
  68         self,
  69         dialog_context: DialogContext = None,
  70         reason: DialogReason = None,
  71         result: object = NotImplementedError(),
  72     ) -> DialogTurnResult:
  73         if not dialog_context:
  74             raise TypeError("WaterfallDialog.continue_dialog(): dc cannot be None.")
  75 
  76         if dialog_context.context.activity.type != ActivityTypes.message:
  77             return Dialog.end_of_turn
  78 
  79         return await self.resume_dialog(
  80             dialog_context,
  81             DialogReason.ContinueCalled,
  82             dialog_context.context.activity.text,
  83         )
  84 
  85     async def resume_dialog(
  86         self, dialog_context: DialogContext, reason: DialogReason, result: object
  87     ):
  88         if dialog_context is None:
  89             raise TypeError("WaterfallDialog.resume_dialog(): dc cannot be None.")
  90 
  91         # Increment step index and run step
  92         state = dialog_context.active_dialog.state
  93 
  94         # Future Me:
  95         # If issues with CosmosDB, see https://github.com/Microsoft/botbuilder-dotnet/issues/871
  96         # for hints.
  97         return await self.run_step(
  98             dialog_context, state[self.StepIndex] + 1, reason, result
  99         )
  100 
  101     async def end_dialog(  # pylint: disable=unused-argument
  102         self, context: TurnContext, instance: DialogInstance, reason: DialogReason
  103     ) -> None:
  104         if reason is DialogReason.CancelCalled:
  105             index = instance.state[self.StepIndex]
  106             step_name = self.get_step_name(index)
  107             instance_id = str(instance.state[self.PersistedInstanceId])
  108             properties = {
  109                 "DialogId": self.id,
  110                 "StepName": step_name,
  111                 "InstanceId": instance_id,
  112             }
  113             self.telemetry_client.track_event("WaterfallCancel", properties)
  114         else:
  115             if reason is DialogReason.EndCalled:
  116 
  117                 instance_id = str(instance.state[self.PersistedInstanceId])
  118                 properties = {"DialogId": self.id, "InstanceId": instance_id}
  119                 self.telemetry_client.track_event("WaterfallComplete", properties)
  120 
  121         return
  122 
  123     async def on_step(self, step_context: WaterfallStepContext) -> DialogTurnResult:
  124         step_name = self.get_step_name(step_context.index)
  125         instance_id = str(step_context.active_dialog.state[self.PersistedInstanceId])
  126         properties = {
  127             "DialogId": self.id,
  128             "StepName": step_name,
  129             "InstanceId": instance_id,
  130         }
  131         self.telemetry_client.track_event("WaterfallStep", properties)
  132         return await self._steps[step_context.index](step_context)
  133 
  134     async def run_step(
  135         self,
  136         dialog_context: DialogContext,
  137         index: int,
  138         reason: DialogReason,
  139         result: object,
  140     ) -> DialogTurnResult:
  141         if not dialog_context:
  142             raise TypeError(
  143                 "WaterfallDialog.run_steps(): dialog_context cannot be None."
  144             )
  145         if index < len(self._steps):
  146             # Update persisted step index
  147             state = dialog_context.active_dialog.state
  148             state[self.StepIndex] = index
  149 
  150             # Create step context
  151             options = state[self.PersistedOptions]
  152             values = state[self.PersistedValues]
  153             step_context = WaterfallStepContext(
  154                 self, dialog_context, options, values, index, reason, result
  155             )
  156             return await self.on_step(step_context)
  157 
  158         # End of waterfall so just return any result to parent
  159         return await dialog_context.end_dialog(result)
  160 
  161     def get_step_name(self, index: int) -> str:
  162         """
  163         Give the waterfall step a unique name
  164         """
  165         step_name = self._steps[index].__qualname__
  166 
  167         if not step_name or ">" in step_name:
  168             step_name = f"Step{index + 1}of{len(self._steps)}"
  169 
  170         return step_name
  171
  ```
  --- END FILES ---
  
  Please first localize the bug based on the issue statement, and then generate a patch according to the `git diff` format fenced by three backticks.
  
  Here is an example:
  
  ```diff
  diff --git a/examples/server_async.py b/examples/server_async.py
  --- a/examples/server_async.py
  +++ b/examples/server_async.py
  @@ -313,4 +313,4 @@
   
   
   if __name__ == "__main__":
  -    asyncio.run(run_async_server("."), debug=True)
  +    asyncio.run(run_async_server(), debug=True)
  diff --git a/examples/server_sync.py b/examples/server_sync.py
  --- a/examples/server_sync.py
  +++ b/examples/server_sync.py
  @@ -313,5 +313,5 @@
   
   
   if __name__ == "__main__":
  -    server = run_sync_server(".")
  +    server = run_sync_server()
       server.shutdown()
  
  ```
  
golden_diff: diff --git a/libraries/botbuilder-dialogs/botbuilder/dialogs/waterfall_dialog.py b/libraries/botbuilder-dialogs/botbuilder/dialogs/waterfall_dialog.py
  --- a/libraries/botbuilder-dialogs/botbuilder/dialogs/waterfall_dialog.py
  +++ b/libraries/botbuilder-dialogs/botbuilder/dialogs/waterfall_dialog.py
  @@ -164,7 +164,7 @@
           """
           step_name = self._steps[index].__qualname__
   
  -        if not step_name or ">" in step_name:
  +        if not step_name or step_name.endswith("<lambda>"):
               step_name = f"Step{index + 1}of{len(self._steps)}"
   
           return step_name
  
verification_info: {"golden_diff": "diff --git a/libraries/botbuilder-dialogs/botbuilder/dialogs/waterfall_dialog.py b/libraries/botbuilder-dialogs/botbuilder/dialogs/waterfall_dialog.py\n--- a/libraries/botbuilder-dialogs/botbuilder/dialogs/waterfall_dialog.py\n+++ b/libraries/botbuilder-dialogs/botbuilder/dialogs/waterfall_dialog.py\n@@ -164,7 +164,7 @@\n         \"\"\"\r\n         step_name = self._steps[index].__qualname__\r\n \r\n-        if not step_name or \">\" in step_name:\r\n+        if not step_name or step_name.endswith(\"<lambda>\"):\r\n             step_name = f\"Step{index + 1}of{len(self._steps)}\"\r\n \r\n         return step_name\n", "issue": "[PORT] Create test for waterfall cancellation telemetry\n> Port this change from botbuilder-dotnet/master branch:\nhttps://github.com/microsoft/botbuilder-dotnet/pull/3314\n\nFor https://github.com/microsoft/botbuilder-js/issues/1619\n\n\r\n# Changed projects\r\n* Microsoft.Bot.Builder.Dialogs.Tests\r\n\r\n\r\n\n\n", "before_files": [{"content": "# Copyright (c) Microsoft Corporation. All rights reserved.\r\n# Licensed under the MIT License.\r\n\r\n\r\nimport uuid\r\nfrom typing import Coroutine\r\nfrom botbuilder.core import TurnContext\r\nfrom botbuilder.schema import ActivityTypes\r\nfrom .dialog_reason import DialogReason\r\nfrom .dialog import Dialog\r\nfrom .dialog_turn_result import DialogTurnResult\r\nfrom .dialog_context import DialogContext\r\nfrom .dialog_instance import DialogInstance\r\nfrom .waterfall_step_context import WaterfallStepContext\r\n\r\n\r\nclass WaterfallDialog(Dialog):\r\n    PersistedOptions = \"options\"\r\n    StepIndex = \"stepIndex\"\r\n    PersistedValues = \"values\"\r\n    PersistedInstanceId = \"instanceId\"\r\n\r\n    def __init__(self, dialog_id: str, steps: [Coroutine] = None):\r\n        super(WaterfallDialog, self).__init__(dialog_id)\r\n        if not steps:\r\n            self._steps = []\r\n        else:\r\n            if not isinstance(steps, list):\r\n                raise TypeError(\"WaterfallDialog(): steps must be list of steps\")\r\n            self._steps = steps\r\n\r\n    def add_step(self, step):\r\n        \"\"\"\r\n        Adds a new step to the waterfall.\r\n        :param step: Step to add\r\n        :return: Waterfall dialog for fluent calls to `add_step()`.\r\n        \"\"\"\r\n        if not step:\r\n            raise TypeError(\"WaterfallDialog.add_step(): step cannot be None.\")\r\n\r\n        self._steps.append(step)\r\n        return self\r\n\r\n    async def begin_dialog(\r\n        self, dialog_context: DialogContext, options: object = None\r\n    ) -> DialogTurnResult:\r\n\r\n        if not dialog_context:\r\n            raise TypeError(\"WaterfallDialog.begin_dialog(): dc cannot be None.\")\r\n\r\n        # Initialize waterfall state\r\n        state = dialog_context.active_dialog.state\r\n\r\n        instance_id = uuid.uuid1().__str__()\r\n        state[self.PersistedOptions] = options\r\n        state[self.PersistedValues] = {}\r\n        state[self.PersistedInstanceId] = instance_id\r\n\r\n        properties = {}\r\n        properties[\"DialogId\"] = self.id\r\n        properties[\"InstanceId\"] = instance_id\r\n        self.telemetry_client.track_event(\"WaterfallStart\", properties)\r\n\r\n        # Run first stepkinds\r\n        return await self.run_step(dialog_context, 0, DialogReason.BeginCalled, None)\r\n\r\n    async def continue_dialog(  # pylint: disable=unused-argument,arguments-differ\r\n        self,\r\n        dialog_context: DialogContext = None,\r\n        reason: DialogReason = None,\r\n        result: object = NotImplementedError(),\r\n    ) -> DialogTurnResult:\r\n        if not dialog_context:\r\n            raise TypeError(\"WaterfallDialog.continue_dialog(): dc cannot be None.\")\r\n\r\n        if dialog_context.context.activity.type != ActivityTypes.message:\r\n            return Dialog.end_of_turn\r\n\r\n        return await self.resume_dialog(\r\n            dialog_context,\r\n            DialogReason.ContinueCalled,\r\n            dialog_context.context.activity.text,\r\n        )\r\n\r\n    async def resume_dialog(\r\n        self, dialog_context: DialogContext, reason: DialogReason, result: object\r\n    ):\r\n        if dialog_context is None:\r\n            raise TypeError(\"WaterfallDialog.resume_dialog(): dc cannot be None.\")\r\n\r\n        # Increment step index and run step\r\n        state = dialog_context.active_dialog.state\r\n\r\n        # Future Me:\r\n        # If issues with CosmosDB, see https://github.com/Microsoft/botbuilder-dotnet/issues/871\r\n        # for hints.\r\n        return await self.run_step(\r\n            dialog_context, state[self.StepIndex] + 1, reason, result\r\n        )\r\n\r\n    async def end_dialog(  # pylint: disable=unused-argument\r\n        self, context: TurnContext, instance: DialogInstance, reason: DialogReason\r\n    ) -> None:\r\n        if reason is DialogReason.CancelCalled:\r\n            index = instance.state[self.StepIndex]\r\n            step_name = self.get_step_name(index)\r\n            instance_id = str(instance.state[self.PersistedInstanceId])\r\n            properties = {\r\n                \"DialogId\": self.id,\r\n                \"StepName\": step_name,\r\n                \"InstanceId\": instance_id,\r\n            }\r\n            self.telemetry_client.track_event(\"WaterfallCancel\", properties)\r\n        else:\r\n            if reason is DialogReason.EndCalled:\r\n\r\n                instance_id = str(instance.state[self.PersistedInstanceId])\r\n                properties = {\"DialogId\": self.id, \"InstanceId\": instance_id}\r\n                self.telemetry_client.track_event(\"WaterfallComplete\", properties)\r\n\r\n        return\r\n\r\n    async def on_step(self, step_context: WaterfallStepContext) -> DialogTurnResult:\r\n        step_name = self.get_step_name(step_context.index)\r\n        instance_id = str(step_context.active_dialog.state[self.PersistedInstanceId])\r\n        properties = {\r\n            \"DialogId\": self.id,\r\n            \"StepName\": step_name,\r\n            \"InstanceId\": instance_id,\r\n        }\r\n        self.telemetry_client.track_event(\"WaterfallStep\", properties)\r\n        return await self._steps[step_context.index](step_context)\r\n\r\n    async def run_step(\r\n        self,\r\n        dialog_context: DialogContext,\r\n        index: int,\r\n        reason: DialogReason,\r\n        result: object,\r\n    ) -> DialogTurnResult:\r\n        if not dialog_context:\r\n            raise TypeError(\r\n                \"WaterfallDialog.run_steps(): dialog_context cannot be None.\"\r\n            )\r\n        if index < len(self._steps):\r\n            # Update persisted step index\r\n            state = dialog_context.active_dialog.state\r\n            state[self.StepIndex] = index\r\n\r\n            # Create step context\r\n            options = state[self.PersistedOptions]\r\n            values = state[self.PersistedValues]\r\n            step_context = WaterfallStepContext(\r\n                self, dialog_context, options, values, index, reason, result\r\n            )\r\n            return await self.on_step(step_context)\r\n\r\n        # End of waterfall so just return any result to parent\r\n        return await dialog_context.end_dialog(result)\r\n\r\n    def get_step_name(self, index: int) -> str:\r\n        \"\"\"\r\n        Give the waterfall step a unique name\r\n        \"\"\"\r\n        step_name = self._steps[index].__qualname__\r\n\r\n        if not step_name or \">\" in step_name:\r\n            step_name = f\"Step{index + 1}of{len(self._steps)}\"\r\n\r\n        return step_name\r\n", "path": "libraries/botbuilder-dialogs/botbuilder/dialogs/waterfall_dialog.py"}], "after_files": [{"content": "# Copyright (c) Microsoft Corporation. All rights reserved.\r\n# Licensed under the MIT License.\r\n\r\n\r\nimport uuid\r\nfrom typing import Coroutine\r\nfrom botbuilder.core import TurnContext\r\nfrom botbuilder.schema import ActivityTypes\r\nfrom .dialog_reason import DialogReason\r\nfrom .dialog import Dialog\r\nfrom .dialog_turn_result import DialogTurnResult\r\nfrom .dialog_context import DialogContext\r\nfrom .dialog_instance import DialogInstance\r\nfrom .waterfall_step_context import WaterfallStepContext\r\n\r\n\r\nclass WaterfallDialog(Dialog):\r\n    PersistedOptions = \"options\"\r\n    StepIndex = \"stepIndex\"\r\n    PersistedValues = \"values\"\r\n    PersistedInstanceId = \"instanceId\"\r\n\r\n    def __init__(self, dialog_id: str, steps: [Coroutine] = None):\r\n        super(WaterfallDialog, self).__init__(dialog_id)\r\n        if not steps:\r\n            self._steps = []\r\n        else:\r\n            if not isinstance(steps, list):\r\n                raise TypeError(\"WaterfallDialog(): steps must be list of steps\")\r\n            self._steps = steps\r\n\r\n    def add_step(self, step):\r\n        \"\"\"\r\n        Adds a new step to the waterfall.\r\n        :param step: Step to add\r\n        :return: Waterfall dialog for fluent calls to `add_step()`.\r\n        \"\"\"\r\n        if not step:\r\n            raise TypeError(\"WaterfallDialog.add_step(): step cannot be None.\")\r\n\r\n        self._steps.append(step)\r\n        return self\r\n\r\n    async def begin_dialog(\r\n        self, dialog_context: DialogContext, options: object = None\r\n    ) -> DialogTurnResult:\r\n\r\n        if not dialog_context:\r\n            raise TypeError(\"WaterfallDialog.begin_dialog(): dc cannot be None.\")\r\n\r\n        # Initialize waterfall state\r\n        state = dialog_context.active_dialog.state\r\n\r\n        instance_id = uuid.uuid1().__str__()\r\n        state[self.PersistedOptions] = options\r\n        state[self.PersistedValues] = {}\r\n        state[self.PersistedInstanceId] = instance_id\r\n\r\n        properties = {}\r\n        properties[\"DialogId\"] = self.id\r\n        properties[\"InstanceId\"] = instance_id\r\n        self.telemetry_client.track_event(\"WaterfallStart\", properties)\r\n\r\n        # Run first stepkinds\r\n        return await self.run_step(dialog_context, 0, DialogReason.BeginCalled, None)\r\n\r\n    async def continue_dialog(  # pylint: disable=unused-argument,arguments-differ\r\n        self,\r\n        dialog_context: DialogContext = None,\r\n        reason: DialogReason = None,\r\n        result: object = NotImplementedError(),\r\n    ) -> DialogTurnResult:\r\n        if not dialog_context:\r\n            raise TypeError(\"WaterfallDialog.continue_dialog(): dc cannot be None.\")\r\n\r\n        if dialog_context.context.activity.type != ActivityTypes.message:\r\n            return Dialog.end_of_turn\r\n\r\n        return await self.resume_dialog(\r\n            dialog_context,\r\n            DialogReason.ContinueCalled,\r\n            dialog_context.context.activity.text,\r\n        )\r\n\r\n    async def resume_dialog(\r\n        self, dialog_context: DialogContext, reason: DialogReason, result: object\r\n    ):\r\n        if dialog_context is None:\r\n            raise TypeError(\"WaterfallDialog.resume_dialog(): dc cannot be None.\")\r\n\r\n        # Increment step index and run step\r\n        state = dialog_context.active_dialog.state\r\n\r\n        # Future Me:\r\n        # If issues with CosmosDB, see https://github.com/Microsoft/botbuilder-dotnet/issues/871\r\n        # for hints.\r\n        return await self.run_step(\r\n            dialog_context, state[self.StepIndex] + 1, reason, result\r\n        )\r\n\r\n    async def end_dialog(  # pylint: disable=unused-argument\r\n        self, context: TurnContext, instance: DialogInstance, reason: DialogReason\r\n    ) -> None:\r\n        if reason is DialogReason.CancelCalled:\r\n            index = instance.state[self.StepIndex]\r\n            step_name = self.get_step_name(index)\r\n            instance_id = str(instance.state[self.PersistedInstanceId])\r\n            properties = {\r\n                \"DialogId\": self.id,\r\n                \"StepName\": step_name,\r\n                \"InstanceId\": instance_id,\r\n            }\r\n            self.telemetry_client.track_event(\"WaterfallCancel\", properties)\r\n        else:\r\n            if reason is DialogReason.EndCalled:\r\n\r\n                instance_id = str(instance.state[self.PersistedInstanceId])\r\n                properties = {\"DialogId\": self.id, \"InstanceId\": instance_id}\r\n                self.telemetry_client.track_event(\"WaterfallComplete\", properties)\r\n\r\n        return\r\n\r\n    async def on_step(self, step_context: WaterfallStepContext) -> DialogTurnResult:\r\n        step_name = self.get_step_name(step_context.index)\r\n        instance_id = str(step_context.active_dialog.state[self.PersistedInstanceId])\r\n        properties = {\r\n            \"DialogId\": self.id,\r\n            \"StepName\": step_name,\r\n            \"InstanceId\": instance_id,\r\n        }\r\n        self.telemetry_client.track_event(\"WaterfallStep\", properties)\r\n        return await self._steps[step_context.index](step_context)\r\n\r\n    async def run_step(\r\n        self,\r\n        dialog_context: DialogContext,\r\n        index: int,\r\n        reason: DialogReason,\r\n        result: object,\r\n    ) -> DialogTurnResult:\r\n        if not dialog_context:\r\n            raise TypeError(\r\n                \"WaterfallDialog.run_steps(): dialog_context cannot be None.\"\r\n            )\r\n        if index < len(self._steps):\r\n            # Update persisted step index\r\n            state = dialog_context.active_dialog.state\r\n            state[self.StepIndex] = index\r\n\r\n            # Create step context\r\n            options = state[self.PersistedOptions]\r\n            values = state[self.PersistedValues]\r\n            step_context = WaterfallStepContext(\r\n                self, dialog_context, options, values, index, reason, result\r\n            )\r\n            return await self.on_step(step_context)\r\n\r\n        # End of waterfall so just return any result to parent\r\n        return await dialog_context.end_dialog(result)\r\n\r\n    def get_step_name(self, index: int) -> str:\r\n        \"\"\"\r\n        Give the waterfall step a unique name\r\n        \"\"\"\r\n        step_name = self._steps[index].__qualname__\r\n\r\n        if not step_name or step_name.endswith(\"<lambda>\"):\r\n            step_name = f\"Step{index + 1}of{len(self._steps)}\"\r\n\r\n        return step_name\r\n", "path": "libraries/botbuilder-dialogs/botbuilder/dialogs/waterfall_dialog.py"}]}