3 files changed, 29 insertions, 3 deletions
diff --git a/activesupport/test/cache/stores/file_store_test.rb b/activesupport/test/cache/stores/file_store_test.rb
index c3c35a7bcc..f6855bb308 100644
--- a/activesupport/test/cache/stores/file_store_test.rb
+++ b/activesupport/test/cache/stores/file_store_test.rb
@@ -68,7 +68,9 @@ class FileStoreTest < ActiveSupport::TestCase
   def test_filename_max_size
     key = "#{'A' * ActiveSupport::Cache::FileStore::FILENAME_MAX_SIZE}"
     path = @cache.send(:normalize_key, key, {})
-    Dir::Tmpname.create(path) do |tmpname, n, opts|
+    basename = File.basename(path)
+    dirname = File.dirname(path)
+    Dir::Tmpname.create(basename, Dir.tmpdir + dirname) do |tmpname, n, opts|
       assert File.basename(tmpname + ".lock").length <= 255, "Temp filename too long: #{File.basename(tmpname + '.lock').length}"
     end
   end
diff --git a/activesupport/test/cache/stores/memory_store_test.rb b/activesupport/test/cache/stores/memory_store_test.rb
index 72fafc187b..8fe8384fb0 100644
--- a/activesupport/test/cache/stores/memory_store_test.rb
+++ b/activesupport/test/cache/stores/memory_store_test.rb
@@ -6,8 +6,7 @@ require_relative "../behaviors"
 
 class MemoryStoreTest < ActiveSupport::TestCase
   def setup
-    @record_size = ActiveSupport::Cache.lookup_store(:memory_store).send(:cached_size, 1, ActiveSupport::Cache::Entry.new("aaaaaaaaaa"))
-    @cache = ActiveSupport::Cache.lookup_store(:memory_store, expires_in: 60, size: @record_size * 10 + 1)
+    @cache = ActiveSupport::Cache.lookup_store(:memory_store, expires_in: 60)
   end
 
   include CacheStoreBehavior
@@ -15,6 +14,13 @@ class MemoryStoreTest < ActiveSupport::TestCase
   include CacheDeleteMatchedBehavior
   include CacheIncrementDecrementBehavior
   include CacheInstrumentationBehavior
+end
+
+class MemoryStorePruningTest < ActiveSupport::TestCase
+  def setup
+    @record_size = ActiveSupport::Cache.lookup_store(:memory_store).send(:cached_size, 1, ActiveSupport::Cache::Entry.new("aaaaaaaaaa"))
+    @cache = ActiveSupport::Cache.lookup_store(:memory_store, expires_in: 60, size: @record_size * 10 + 1)
+  end
 
   def test_prune_size
     @cache.write(1, "aaaaaaaaaa") && sleep(0.001)
diff --git a/activesupport/test/cache/stores/redis_cache_store_test.rb b/activesupport/test/cache/stores/redis_cache_store_test.rb
index dda96b68fb..3cae2bb11f 100644
--- a/activesupport/test/cache/stores/redis_cache_store_test.rb
+++ b/activesupport/test/cache/stores/redis_cache_store_test.rb
@@ -221,4 +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 !@cache.exist?("foo")
+      assert !@cache.exist?("fu")
+    end
+
+    test "only clear namespace cache key" do
+      @cache.write("foo", "bar")
+      @cache.redis.set("fu", "baz")
+      @cache.clear
+      assert !@cache.exist?("foo")
+      assert @cache.redis.exists("fu")
+    end
+  end
 end