enable changing of host for redis

 * normally would be localhost, but enable local
   testing with a different host
 * makes it symmetric with the port definition

.github/workflows/ci.yml

@@ -13,6 +13,8 @@ concurrency:
 
 env:
   FORCE_COLOR: 3
+  TEST_REDIS_HOST: "localhost"
+  TEST_REDIS_PORT: 63790
 
 jobs:
   pre-commit:
@@ -55,6 +57,8 @@ jobs:
 
       - name: Start Redis
         uses: supercharge/[email protected]
+        with:
+          redis-port: ${TEST_REDIS_PORT}
 
       - name: Install package
         run: python -m pip install .[test]

tests/conftest.py

@@ -1,5 +1,6 @@
 from __future__ import annotations
 
+import os
 import uuid
 
 import pytest
@@ -10,7 +11,10 @@
 
 @pytest.fixture()
 def d():
-    redis_client = redis.Redis(host="localhost", port=6379)
+    redis_client = redis.Redis(
+        host=os.environ.get("TEST_REDIS_HOST", "localhost"),
+        port=os.environ.get("TEST_REDIS_PORT", 63798),
+    )  # use a different port than usual because are clearing it!
     redis_client.flushall()
     prefix = uuid.uuid4().hex
     yield RedisJSONDict(redis_client, prefix=prefix)