[CHA-0] fix: read rate limit headers case-insensitively; poll in hide/show test (#243)

* fix: read rate limit headers case-insensitively

The async client passes response headers as a plain dict, which keeps the
case the server sent, so rate_limit() returned None when the server sent
X-Ratelimit-* instead of x-ratelimit-*. Also poll in test_channel_hide_show:
the backend unhides a channel in a background task after a new message.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

* test: poll up to 30s for the unhide in hide/show tests

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

---------

Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>

Author: nijeesh-stream

stream_chat/tests/async_chat/test_channel.py

@@ -1,3 +1,4 @@
+import asyncio
 import time
 import uuid
 from pathlib import Path
@@ -300,10 +301,16 @@ async def test_channel_hide_show(
         assert len(response["channels"]) == 0
         # send message
         await channel.send_message({"text": "hi"}, random_users[1]["id"])
-        # channel should be listed now
-        response = await client.query_channels(
-            {"id": channel.id}, user_id=random_users[0]["id"]
-        )
+        # channel should be listed now. The backend unhides it in a background
+        # task after the message is sent, which can take a while on a busy
+        # shared test app, so poll for up to 30s.
+        for _ in range(60):
+            response = await client.query_channels(
+                {"id": channel.id}, user_id=random_users[0]["id"]
+            )
+            if len(response["channels"]) == 1:
+                break
+            await asyncio.sleep(0.5)
         assert len(response["channels"]) == 1
 
     async def test_invites(self, client: StreamChatAsync, random_users: List[Dict]):

stream_chat/tests/test_channel.py

@@ -302,10 +302,16 @@ def test_channel_hide_show(
         assert len(response["channels"]) == 0
         # send message
         channel.send_message({"text": "hi"}, random_users[1]["id"])
-        # channel should be listed now
-        response = client.query_channels(
-            {"id": channel.id}, user_id=random_users[0]["id"]
-        )
+        # channel should be listed now. The backend unhides it in a background
+        # task after the message is sent, which can take a while on a busy
+        # shared test app, so poll for up to 30s.
+        for _ in range(60):
+            response = client.query_channels(
+                {"id": channel.id}, user_id=random_users[0]["id"]
+            )
+            if len(response["channels"]) == 1:
+                break
+            time.sleep(0.5)
         assert len(response["channels"]) == 1
 
     def test_invites(self, client: StreamChat, random_users: List[Dict]):

stream_chat/tests/test_stream_response_headers.py

@@ -0,0 +1,23 @@
+from datetime import datetime
+
+from stream_chat.types.stream_response import StreamResponse
+
+
+class TestStreamResponseHeaders:
+    def test_rate_limit_reads_headers_in_any_case(self):
+        resp = StreamResponse(
+            {"duration": "1ms"},
+            {
+                "X-Ratelimit-Limit": "1000",
+                "X-Ratelimit-Remaining": "999",
+                "X-Ratelimit-Reset": "1700000000",
+            },
+            200,
+        )
+
+        rate_limit = resp.rate_limit()
+        assert rate_limit is not None
+        assert rate_limit.limit == 1000
+        assert rate_limit.remaining == 999
+        assert type(rate_limit.reset) is datetime
+        assert resp.headers()["X-Ratelimit-Limit"] == "1000"

stream_chat/types/stream_response.py

@@ -31,10 +31,13 @@ def __init__(
         self.__headers = headers
         self.__status_code = status_code
         self.__rate_limit: Optional[RateLimitInfo] = None
+        # Header names are case-insensitive. The async client passes a plain
+        # dict, which keeps the case the server sent (e.g. X-Ratelimit-Limit).
+        lowered = {k.lower(): v for k, v in headers.items()}
         limit, remaining, reset = (
-            headers.get("x-ratelimit-limit"),
-            headers.get("x-ratelimit-remaining"),
-            headers.get("x-ratelimit-reset"),
+            lowered.get("x-ratelimit-limit"),
+            lowered.get("x-ratelimit-remaining"),
+            lowered.get("x-ratelimit-reset"),
         )
         if limit and remaining and reset:
             self.__rate_limit = RateLimitInfo(