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()

```

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

{"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"}]}