2 files changed, 16 insertions, 6 deletions
diff --git a/actioncable/test/server/base_test.rb b/actioncable/test/server/base_test.rb
index f0a51c5a7d..3b5931f0a4 100644
--- a/actioncable/test/server/base_test.rb
+++ b/actioncable/test/server/base_test.rb
@@ -1,8 +1,13 @@
+# frozen_string_literal: true
+
 require "test_helper"
 require "stubs/test_server"
 require "active_support/core_ext/hash/indifferent_access"
+require "active_support/testing/method_call_assertions"
 
 class BaseTest < ActiveSupport::TestCase
+  include ActiveSupport::Testing::MethodCallAssertions
+
   def setup
     @server = ActionCable::Server::Base.new
     @server.config.cable = { adapter: "async" }.with_indifferent_access
@@ -17,17 +22,20 @@ class BaseTest < ActiveSupport::TestCase
     conn = FakeConnection.new
     @server.add_connection(conn)
 
-    conn.expects(:close)
-    @server.restart
+    assert_called(conn, :close) do
+      @server.restart
+    end
   end
 
   test "#restart shuts down worker pool" do
-    @server.worker_pool.expects(:halt)
-    @server.restart
+    assert_called(@server.worker_pool, :halt) do
+      @server.restart
+    end
   end
 
   test "#restart shuts down pub/sub adapter" do
-    @server.pubsub.expects(:shutdown)
-    @server.restart
+    assert_called(@server.pubsub, :shutdown) do
+      @server.restart
+    end
   end
 end
diff --git a/actioncable/test/server/broadcasting_test.rb b/actioncable/test/server/broadcasting_test.rb
index ed377b7d5d..72cec26234 100644
--- a/actioncable/test/server/broadcasting_test.rb
+++ b/actioncable/test/server/broadcasting_test.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require "test_helper"
 require "stubs/test_server"