Shim rails5 http test methods

test/support/rails5_shims.rb

@@ -0,0 +1,53 @@
+module Rails5Shims
+  module ControllerTests
+    # https://github.com/rails/rails/blob/b217354/actionpack/lib/action_controller/test_case.rb
+    REQUEST_KWARGS = [:params, :headers, :session, :flash, :method, :body, :xhr].freeze
+
+    def get(path, *args)
+      fold_kwargs!(args)
+      super
+    end
+
+    def post(path, *args)
+      fold_kwargs!(args)
+      super
+    end
+
+    def patch(path, *args)
+      fold_kwargs!(args)
+      super
+    end
+
+    def put(path, *args)
+      fold_kwargs!(args)
+      super
+    end
+
+    # Fold kwargs from test request into args
+    # Band-aid for DEPRECATION WARNING
+    def fold_kwargs!(args)
+      hash = args && args[0]
+      return unless hash.respond_to?(:key)
+      Rails5Shims::ControllerTests::REQUEST_KWARGS.each do |kwarg|
+        next unless hash.key?(kwarg)
+        value = hash.delete(kwarg)
+        if value.is_a? String
+          args.insert(0, value)
+        else
+          hash.merge! value
+        end
+      end
+    end
+
+    # Uncomment for debugging where the kwargs warnings come from
+    # def non_kwarg_request_warning
+    #   super.tap do
+    #     STDOUT.puts caller[2..3]
+    #   end
+    # end
+  end
+end
+if Rails::VERSION::MAJOR < 5
+  ActionController::TestCase.send :include, Rails5Shims::ControllerTests
+  ActionDispatch::IntegrationTest.send :include, Rails5Shims::ControllerTests
+end

test/test_helper.rb

@@ -53,3 +53,5 @@ end
 class Object
   undef_method :id if respond_to?(:id)
 end
+
+require "support/rails5_shims"