1 files changed, 25 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 375993a632..24c4c5c481 100644
--- a/activesupport/test/cache/stores/redis_cache_store_test.rb
+++ b/activesupport/test/cache/stores/redis_cache_store_test.rb
@@ -95,6 +95,12 @@ module ActiveSupport::Cache::RedisCacheStoreTests
       end
     end
 
+    test "instance of Redis uses given instance" do
+      redis_instance = Redis.new
+      @cache = build(redis: redis_instance)
+      assert_same @cache.redis, redis_instance
+    end
+
     private
       def build(**kwargs)
         ActiveSupport::Cache::RedisCacheStore.new(driver: DRIVER, **kwargs).tap do |cache|
@@ -205,7 +211,7 @@ module ActiveSupport::Cache::RedisCacheStoreTests
       @cache.write("foo", "bar")
       @cache.write("fu", "baz")
       @cache.delete_matched("foo*")
-      assert !@cache.exist?("foo")
+      assert_not @cache.exist?("foo")
       assert @cache.exist?("fu")
     end
 
@@ -215,4 +221,22 @@ module ActiveSupport::Cache::RedisCacheStoreTests
       end
     end
   end
+
+  class ClearTest < StoreTest
+    test "clear all cache key" do
+      @cache.write("foo", "bar")
+      @cache.write("fu", "baz")
+      @cache.clear
+      assert_not @cache.exist?("foo")
+      assert_not @cache.exist?("fu")
+    end
+
+    test "only clear namespace cache key" do
+      @cache.write("foo", "bar")
+      @cache.redis.set("fu", "baz")
+      @cache.clear
+      assert_not @cache.exist?("foo")
+      assert @cache.redis.exists("fu")
+    end
+  end
 end