Split up topic names between tests

Signed-off-by: Elena Kolevska <elena@kolevska.com>

examples/pubsub-streaming/README.md

@@ -27,11 +27,11 @@ Run the following command in a terminal/command prompt:
 <!-- STEP
 name: Run subscriber
 expected_stdout_lines:
-    - "== APP == Processing message: {'id': 1, 'message': 'hello world'} from TOPIC_A..."
-    - "== APP == Processing message: {'id': 2, 'message': 'hello world'} from TOPIC_A..."
-    - "== APP == Processing message: {'id': 3, 'message': 'hello world'} from TOPIC_A..."
-    - "== APP == Processing message: {'id': 4, 'message': 'hello world'} from TOPIC_A..."
-    - "== APP == Processing message: {'id': 5, 'message': 'hello world'} from TOPIC_A..."
+    - "== APP == Processing message: {'id': 1, 'message': 'hello world'} from TOPIC_A1..."
+    - "== APP == Processing message: {'id': 2, 'message': 'hello world'} from TOPIC_A1..."
+    - "== APP == Processing message: {'id': 3, 'message': 'hello world'} from TOPIC_A1..."
+    - "== APP == Processing message: {'id': 4, 'message': 'hello world'} from TOPIC_A1..."
+    - "== APP == Processing message: {'id': 5, 'message': 'hello world'} from TOPIC_A1..."
     - "== APP == Closing subscription..."
 output_match_mode: substring
 background: true
@@ -41,7 +41,7 @@ sleep: 3
 
 ```bash
 # 1. Start Subscriber
-dapr run --app-id python-subscriber --app-protocol grpc python3 subscriber.py
+dapr run --app-id python-subscriber --app-protocol grpc -- python3 subscriber.py  --topic=TOPIC_A1
 ```
 
 <!-- END_STEP -->
@@ -63,7 +63,7 @@ sleep: 15
 
 ```bash
 # 2. Start Publisher
-dapr run --app-id python-publisher --app-protocol grpc --dapr-grpc-port=3500 --enable-app-health-check python3 publisher.py
+dapr run --app-id python-publisher --app-protocol grpc --dapr-grpc-port=3500 --enable-app-health-check -- python3 publisher.py --topic=TOPIC_A1
 ```
 
 <!-- END_STEP -->
@@ -75,11 +75,11 @@ Run the following command in a terminal/command prompt:
 <!-- STEP
 name: Run subscriber
 expected_stdout_lines:
-    - "== APP == Processing message: {'id': 1, 'message': 'hello world'} from TOPIC_A..."
-    - "== APP == Processing message: {'id': 2, 'message': 'hello world'} from TOPIC_A..."
-    - "== APP == Processing message: {'id': 3, 'message': 'hello world'} from TOPIC_A..."
-    - "== APP == Processing message: {'id': 4, 'message': 'hello world'} from TOPIC_A..."
-    - "== APP == Processing message: {'id': 5, 'message': 'hello world'} from TOPIC_A..."
+    - "== APP == Processing message: {'id': 1, 'message': 'hello world'} from TOPIC_A2..."
+    - "== APP == Processing message: {'id': 2, 'message': 'hello world'} from TOPIC_A2..."
+    - "== APP == Processing message: {'id': 3, 'message': 'hello world'} from TOPIC_A2..."
+    - "== APP == Processing message: {'id': 4, 'message': 'hello world'} from TOPIC_A2..."
+    - "== APP == Processing message: {'id': 5, 'message': 'hello world'} from TOPIC_A2..."
     - "== APP == Closing subscription..."
 output_match_mode: substring
 background: true
@@ -89,7 +89,7 @@ sleep: 3
 
 ```bash
 # 1. Start Subscriber
-dapr run --app-id python-subscriber --app-protocol grpc python3 subscriber-handler.py
+dapr run --app-id python-subscriber --app-protocol grpc -- python3 subscriber-handler.py  --topic=TOPIC_A2
 ```
 
 <!-- END_STEP -->
@@ -111,7 +111,7 @@ sleep: 15
 
 ```bash
 # 2. Start Publisher
-dapr run --app-id python-publisher --app-protocol grpc --dapr-grpc-port=3500 --enable-app-health-check python3 publisher.py
+dapr run --app-id python-publisher --app-protocol grpc --dapr-grpc-port=3500 --enable-app-health-check -- python3 publisher.py  --topic=TOPIC_A2
 ```
 
 <!-- END_STEP --> 

examples/pubsub-streaming/publisher.py

@@ -10,12 +10,18 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 # ------------------------------------------------------------
-
+import argparse
 import json
 import time
 
 from dapr.clients import DaprClient
 
+parser = argparse.ArgumentParser(description='Publish events to a Dapr pub/sub topic.')
+parser.add_argument('--topic', type=str, required=True, help='The topic name to publish to.')
+args = parser.parse_args()
+
+topic_name = args.topic
+
 with DaprClient() as d:
     id = 0
     while id < 5:
@@ -25,7 +31,7 @@
         # Create a typed message with content type and body
         resp = d.publish_event(
             pubsub_name='pubsub',
-            topic_name='TOPIC_A',
+            topic_name=topic_name,
             data=json.dumps(req_data),
             data_content_type='application/json',
             publish_metadata={'ttlInSeconds': '100', 'rawPayload': 'false'},

examples/pubsub-streaming/subscriber-handler.py

@@ -1,10 +1,17 @@
+import argparse
 import time
 
 from dapr.clients import DaprClient
 from dapr.clients.grpc._response import TopicEventResponse
 
 counter = 0
 
+parser = argparse.ArgumentParser(description='Publish events to a Dapr pub/sub topic.')
+parser.add_argument('--topic', type=str, required=True, help='The topic name to publish to.')
+args = parser.parse_args()
+
+topic_name = args.topic
+dlq_topic_name = topic_name + '_DEAD'
 
 def process_message(message):
     # Process the message here
@@ -20,9 +27,9 @@ def main():
         # and process them in the `process_message` function
         close_fn = client.subscribe_with_handler(
             pubsub_name='pubsub',
-            topic='TOPIC_A',
+            topic=topic_name,
             handler_fn=process_message,
-            dead_letter_topic='TOPIC_A_DEAD',
+            dead_letter_topic=dlq_topic_name,
         )
 
         while counter < 5:

examples/pubsub-streaming/subscriber.py

@@ -1,10 +1,18 @@
+import argparse
 import time
 
 from dapr.clients import DaprClient
 from dapr.clients.grpc.subscription import StreamInactiveError
 
 counter = 0
 
+parser = argparse.ArgumentParser(description='Publish events to a Dapr pub/sub topic.')
+parser.add_argument('--topic', type=str, required=True, help='The topic name to publish to.')
+args = parser.parse_args()
+
+topic_name = args.topic
+dlq_topic_name = topic_name + '_DEAD'
+
 
 def process_message(message):
     global counter
@@ -20,7 +28,7 @@ def main():
 
         try:
             subscription = client.subscribe(
-                pubsub_name='pubsub', topic='TOPIC_A', dead_letter_topic='TOPIC_A_DEAD'
+                pubsub_name='pubsub', topic=topic_name, dead_letter_topic=dlq_topic_name
             )
         except Exception as e:
             print(f'Error occurred: {e}')