1 files changed, 65 insertions, 0 deletions
diff --git a/actioncable/test/subscription_adapter/base_test.rb b/actioncable/test/subscription_adapter/base_test.rb
new file mode 100644
index 0000000000..999dc0cba1
--- /dev/null
+++ b/actioncable/test/subscription_adapter/base_test.rb
@@ -0,0 +1,65 @@
+# frozen_string_literal: true
+
+require "test_helper"
+require "stubs/test_server"
+
+class ActionCable::SubscriptionAdapter::BaseTest < ActionCable::TestCase
+  ## TEST THAT ERRORS ARE RETURNED FOR INHERITORS THAT DON'T OVERRIDE METHODS
+
+  class BrokenAdapter < ActionCable::SubscriptionAdapter::Base
+  end
+
+  setup do
+    @server = TestServer.new
+    @server.config.subscription_adapter = BrokenAdapter
+    @server.config.allowed_request_origins = %w( http://rubyonrails.com )
+  end
+
+  test "#broadcast returns NotImplementedError by default" do
+    assert_raises NotImplementedError do
+      BrokenAdapter.new(@server).broadcast("channel", "payload")
+    end
+  end
+
+  test "#subscribe returns NotImplementedError by default" do
+    callback = lambda { puts "callback" }
+    success_callback = lambda { puts "success" }
+
+    assert_raises NotImplementedError do
+      BrokenAdapter.new(@server).subscribe("channel", callback, success_callback)
+    end
+  end
+
+  test "#unsubscribe returns NotImplementedError by default" do
+    callback = lambda { puts "callback" }
+
+    assert_raises NotImplementedError do
+      BrokenAdapter.new(@server).unsubscribe("channel", callback)
+    end
+  end
+
+  # TEST METHODS THAT ARE REQUIRED OF THE ADAPTER'S BACKEND STORAGE OBJECT
+
+  test "#broadcast is implemented" do
+    assert_nothing_raised do
+      SuccessAdapter.new(@server).broadcast("channel", "payload")
+    end
+  end
+
+  test "#subscribe is implemented" do
+    callback = lambda { puts "callback" }
+    success_callback = lambda { puts "success" }
+
+    assert_nothing_raised do
+      SuccessAdapter.new(@server).subscribe("channel", callback, success_callback)
+    end
+  end
+
+  test "#unsubscribe is implemented" do
+    callback = lambda { puts "callback" }
+
+    assert_nothing_raised do
+      SuccessAdapter.new(@server).unsubscribe("channel", callback)
+    end
+  end
+end