Respect ENV variables when finding DBs etc for the test suite

If they're not set we'll still fall back to localhost, but this makes it
possible to run the tests against a remote Postgres / Redis / whatever.

1 files changed, 1 insertions, 1 deletions

diff --git a/activesupport/test/cache/stores/redis_cache_store_test.rb b/activesupport/test/cache/stores/redis_cache_store_test.rb
index 305a2c184d..273b196458 100644
--- a/activesupport/test/cache/stores/redis_cache_store_test.rb
+++ b/activesupport/test/cache/stores/redis_cache_store_test.rb
@@ -204,7 +204,7 @@ module ActiveSupport::Cache::RedisCacheStoreTests
   class RedisDistributedConnectionPoolBehaviourTest < ConnectionPoolBehaviourTest
     private
       def store_options
-        { url: %w[ redis://localhost:6379/0 redis://localhost:6379/0 ] }
+        { url: [ENV["REDIS_URL"] || "redis://localhost:6379/0"] * 2 }
       end
   end