diff --git a/test/storage/no_cache_s3_test.rb b/test/storage/no_cache_s3_test.rb
new file mode 100644
index 0000000..1e815a7
--- /dev/null
+++ b/test/storage/no_cache_s3_test.rb
@@ -0,0 +1,78 @@
+# frozen_string_literal: true
+
+require 'test_helper'
+require 'fog/local'
+require 'sidekiq'
+require 'sidekiq/testing'
+
+require 'delayed_paperclip'
+DelayedPaperclip::Railtie.insert
+
+# rubocop:disable Naming/VariableNumber
+
+class FakeModel
+  attr_accessor :synced_to_store_1, :synced_to_store_2
+end
+
+class NoCachedS3Test < Test::Unit::TestCase
+  TEST_ROOT = Pathname(__dir__).join('test')
+
+  def fog_directory(suffix)
+    Fog::Storage.new(provider: 'Local', local_root: TEST_ROOT.join(suffix.to_s))
+      .directories.new(key: '', public: true)
+  end
+
+  def stub_file(name, content)
+    StringIO.new(content).tap { |string_io| string_io.stubs(:original_filename).returns(name) }
+  end
+
+  setup do
+    rebuild_model(
+      storage: :no_cache_s3,
+      key: ':filename',
+      url: 'http://store.local/:key',
+      stores: {
+        store_1: fog_directory(:store_1),
+        store_2: fog_directory(:store_2)
+      }
+    )
+    modify_table(:dummies) do |table|
+      table.boolean :avatar_synced_to_store_1, null: false, default: false
+      table.boolean :avatar_synced_to_store_2, null: false, default: false
+    end
+    @instance = Dummy.create
+  end
+
+  teardown { TEST_ROOT.rmtree if TEST_ROOT.exist? }
+
+  context 'assigning file' do
+    setup { Sidekiq::Testing.fake! }
+
+    should 'write to main store and enqueue jobs to copy to others' do
+      @instance.update!(avatar: stub_file('test.txt', 'qwe'))
+      @instance.reload
+      attachment = @instance.avatar
+      key = attachment.key
+      assert_equal false, attachment.class.store_by(:store_1).files.head(key).nil?
+      assert_equal true, attachment.class.store_by(:store_2).files.head(key).nil?
+      assert_equal 'http://store.local/test.txt', attachment.url(:original, false)
+    end
+
+    context 'with inline jobs' do
+      setup { Sidekiq::Testing.inline! }
+      teardown { Sidekiq::Testing.fake! }
+
+      should 'write to all permanent stores' do
+        @instance.update!(avatar: stub_file('test.txt', 'qwe'))
+        @instance.reload
+        attachment = @instance.avatar
+        key = attachment.key
+        assert_equal false, attachment.class.store_by(:store_1).files.head(key).nil?
+        assert_equal false, attachment.class.store_by(:store_2).files.head(key).nil?
+        assert_equal 'http://store.local/test.txt', attachment.url(:original, false)
+      end
+    end
+  end
+end
+
+# rubocop:enable Naming/VariableNumber