5 files changed, 90 insertions, 37 deletions
diff --git a/actioncable/test/channel/base_test.rb b/actioncable/test/channel/base_test.rb
index 3b8eb63975..d368794f73 100644
--- a/actioncable/test/channel/base_test.rb
+++ b/actioncable/test/channel/base_test.rb
@@ -1,6 +1,7 @@
 # frozen_string_literal: true
 
 require "test_helper"
+require "minitest/mock"
 require "stubs/test_connection"
 require "stubs/room"
 
@@ -226,12 +227,13 @@ class ActionCable::Channel::BaseTest < ActiveSupport::TestCase
         events << ActiveSupport::Notifications::Event.new(*args)
       end
 
-      @channel.stubs(:subscription_confirmation_sent?).returns(false)
-      @channel.send(:transmit_subscription_confirmation)
+      @channel.stub(:subscription_confirmation_sent?, false) do
+        @channel.send(:transmit_subscription_confirmation)
 
-      assert_equal 1, events.length
-      assert_equal "transmit_subscription_confirmation.action_cable", events[0].name
-      assert_equal "ActionCable::Channel::BaseTest::ChatChannel", events[0].payload[:channel_class]
+        assert_equal 1, events.length
+        assert_equal "transmit_subscription_confirmation.action_cable", events[0].name
+        assert_equal "ActionCable::Channel::BaseTest::ChatChannel", events[0].payload[:channel_class]
+      end
     ensure
       ActiveSupport::Notifications.unsubscribe "transmit_subscription_confirmation.action_cable"
     end
diff --git a/actioncable/test/channel/broadcasting_test.rb b/actioncable/test/channel/broadcasting_test.rb
index ab58f33511..f184147c51 100644
--- a/actioncable/test/channel/broadcasting_test.rb
+++ b/actioncable/test/channel/broadcasting_test.rb
@@ -1,10 +1,13 @@
 # frozen_string_literal: true
 
 require "test_helper"
+require "active_support/testing/method_call_assertions"
 require "stubs/test_connection"
 require "stubs/room"
 
 class ActionCable::Channel::BroadcastingTest < ActiveSupport::TestCase
+  include ActiveSupport::Testing::MethodCallAssertions
+
   class ChatChannel < ActionCable::Channel::Base
   end
 
@@ -13,8 +16,16 @@ class ActionCable::Channel::BroadcastingTest < ActiveSupport::TestCase
   end
 
   test "broadcasts_to" do
-    ActionCable.stubs(:server).returns mock().tap { |m| m.expects(:broadcast).with("action_cable:channel:broadcasting_test:chat:Room#1-Campfire", "Hello World") }
-    ChatChannel.broadcast_to(Room.new(1), "Hello World")
+    assert_called_with(
+      ActionCable.server,
+      :broadcast,
+      [
+        "action_cable:channel:broadcasting_test:chat:Room#1-Campfire",
+        "Hello World"
+      ]
+    ) do
+      ChatChannel.broadcast_to(Room.new(1), "Hello World")
+    end
   end
 
   test "broadcasting_for with an object" do
diff --git a/actioncable/test/channel/periodic_timers_test.rb b/actioncable/test/channel/periodic_timers_test.rb
index 500b984ca6..8d9482577c 100644
--- a/actioncable/test/channel/periodic_timers_test.rb
+++ b/actioncable/test/channel/periodic_timers_test.rb
@@ -4,8 +4,11 @@ require "test_helper"
 require "stubs/test_connection"
 require "stubs/room"
 require "active_support/time"
+require "active_support/testing/method_call_assertions"
 
 class ActionCable::Channel::PeriodicTimersTest < ActiveSupport::TestCase
+  include ActiveSupport::Testing::MethodCallAssertions
+
   class ChatChannel < ActionCable::Channel::Base
     # Method name arg
     periodically :send_updates, every: 1
@@ -64,11 +67,22 @@ class ActionCable::Channel::PeriodicTimersTest < ActiveSupport::TestCase
   end
 
   test "timer start and stop" do
-    @connection.server.event_loop.expects(:timer).times(3).returns(stub(shutdown: nil))
-    channel = ChatChannel.new @connection, "{id: 1}", id: 1
+    mock = Minitest::Mock.new
+    3.times { mock.expect(:shutdown, nil) }
+
+    assert_called(
+      @connection.server.event_loop,
+      :timer,
+      times: 3,
+      returns: mock
+    ) do
+      channel = ChatChannel.new @connection, "{id: 1}", id: 1
+
+      channel.subscribe_to_channel
+      channel.unsubscribe_from_channel
+      assert_equal [], channel.send(:active_periodic_timers)
+    end
 
-    channel.subscribe_to_channel
-    channel.unsubscribe_from_channel
-    assert_equal [], channel.send(:active_periodic_timers)
+    assert mock.verify
   end
 end
diff --git a/actioncable/test/channel/rejection_test.rb b/actioncable/test/channel/rejection_test.rb
index a6da014a21..897efeb65a 100644
--- a/actioncable/test/channel/rejection_test.rb
+++ b/actioncable/test/channel/rejection_test.rb
@@ -1,6 +1,7 @@
 # frozen_string_literal: true
 
 require "test_helper"
+require "minitest/mock"
 require "stubs/test_connection"
 require "stubs/room"
 
@@ -20,24 +21,36 @@ class ActionCable::Channel::RejectionTest < ActiveSupport::TestCase
   end
 
   test "subscription rejection" do
-    @connection.expects(:subscriptions).returns mock().tap { |m| m.expects(:remove_subscription).with instance_of(SecretChannel) }
-    @channel = SecretChannel.new @connection, "{id: 1}", id: 1
-    @channel.subscribe_to_channel
+    subscriptions = Minitest::Mock.new
+    subscriptions.expect(:remove_subscription, SecretChannel, [SecretChannel])
 
-    expected = { "identifier" => "{id: 1}", "type" => "reject_subscription" }
-    assert_equal expected, @connection.last_transmission
+    @connection.stub(:subscriptions, subscriptions) do
+      @channel = SecretChannel.new @connection, "{id: 1}", id: 1
+      @channel.subscribe_to_channel
+
+      expected = { "identifier" => "{id: 1}", "type" => "reject_subscription" }
+      assert_equal expected, @connection.last_transmission
+    end
+
+    assert subscriptions.verify
   end
 
   test "does not execute action if subscription is rejected" do
-    @connection.expects(:subscriptions).returns mock().tap { |m| m.expects(:remove_subscription).with instance_of(SecretChannel) }
-    @channel = SecretChannel.new @connection, "{id: 1}", id: 1
-    @channel.subscribe_to_channel
+    subscriptions = Minitest::Mock.new
+    subscriptions.expect(:remove_subscription, SecretChannel, [SecretChannel])
 
-    expected = { "identifier" => "{id: 1}", "type" => "reject_subscription" }
-    assert_equal expected, @connection.last_transmission
-    assert_equal 1, @connection.transmissions.size
+    @connection.stub(:subscriptions, subscriptions) do
+      @channel = SecretChannel.new @connection, "{id: 1}", id: 1
+      @channel.subscribe_to_channel
+
+      expected = { "identifier" => "{id: 1}", "type" => "reject_subscription" }
+      assert_equal expected, @connection.last_transmission
+      assert_equal 1, @connection.transmissions.size
+
+      @channel.perform_action("action" => :secret_action)
+      assert_equal 1, @connection.transmissions.size
+    end
 
-    @channel.perform_action("action" => :secret_action)
-    assert_equal 1, @connection.transmissions.size
+    assert subscriptions.verify
   end
 end
diff --git a/actioncable/test/channel/stream_test.rb b/actioncable/test/channel/stream_test.rb
index b4b118846d..dbb53fec1f 100644
--- a/actioncable/test/channel/stream_test.rb
+++ b/actioncable/test/channel/stream_test.rb
@@ -2,6 +2,7 @@
 
 require "test_helper"
 require "active_support/testing/method_call_assertions"
+require "minitest/mock"
 require "stubs/test_connection"
 require "stubs/room"
 
@@ -54,29 +55,41 @@ module ActionCable::StreamTests
     test "streaming start and stop" do
       run_in_eventmachine do
         connection = TestConnection.new
-        connection.pubsub.expects(:subscribe).with("test_room_1", kind_of(Proc), kind_of(Proc))
-        channel = ChatChannel.new connection, "{id: 1}", id: 1
-        channel.subscribe_to_channel
+        pubsub = Minitest::Mock.new connection.pubsub
 
-        wait_for_async
+        pubsub.expect(:subscribe, nil, ["test_room_1", Proc, Proc])
+        pubsub.expect(:unsubscribe, nil, ["test_room_1", Proc])
+
+        connection.stub(:pubsub, pubsub) do
+          channel = ChatChannel.new connection, "{id: 1}", id: 1
+          channel.subscribe_to_channel
+
+          wait_for_async
+          channel.unsubscribe_from_channel
+        end
 
-        connection.pubsub.expects(:unsubscribe)
-        channel.unsubscribe_from_channel
+        assert pubsub.verify
       end
     end
 
     test "stream from non-string channel" do
       run_in_eventmachine do
         connection = TestConnection.new
-        connection.pubsub.expects(:subscribe).with("channel", kind_of(Proc), kind_of(Proc))
+        pubsub = Minitest::Mock.new connection.pubsub
 
-        channel = SymbolChannel.new connection, ""
-        channel.subscribe_to_channel
+        pubsub.expect(:subscribe, nil, ["channel", Proc, Proc])
+        pubsub.expect(:unsubscribe, nil, ["channel", Proc])
 
-        wait_for_async
+        connection.stub(:pubsub, pubsub) do
+          channel = SymbolChannel.new connection, ""
+          channel.subscribe_to_channel
+
+          wait_for_async
+
+          channel.unsubscribe_from_channel
+        end
 
-        connection.pubsub.expects(:unsubscribe)
-        channel.unsubscribe_from_channel
+        assert pubsub.verify
       end
     end