From 51c58eecd6515459212075582cccb16843563549 Mon Sep 17 00:00:00 2001
From: Jon Rowe <hello@jonrowe.co.uk>
Date: Thu, 6 Feb 2014 15:48:59 +1100
Subject: [PATCH] work around lack of application controller by defaulting to
 ac::base fixes #922

---
 .../rails/example/controller_example_group.rb |  3 +-
 .../example/controller_example_group_spec.rb  | 46 +++++++++++++++----
 2 files changed, 38 insertions(+), 11 deletions(-)

diff --git a/lib/rspec/rails/example/controller_example_group.rb b/lib/rspec/rails/example/controller_example_group.rb
index 916787aa45..dcd9416c85 100644
--- a/lib/rspec/rails/example/controller_example_group.rb
+++ b/lib/rspec/rails/example/controller_example_group.rb
@@ -55,9 +55,10 @@ def controller_class
       #       # ....
       #     end
       def controller(base_class = nil, &body)
+        root_controller = defined?(ApplicationController) ? ApplicationController : ActionController::Base
         base_class ||= RSpec.configuration.infer_base_class_for_anonymous_controllers? ?
                          controller_class :
-                         ApplicationController
+                         root_controller
 
         metadata[:example_group][:described_class] = Class.new(base_class) do
           def self.name; "AnonymousController"; end
diff --git a/spec/rspec/rails/example/controller_example_group_spec.rb b/spec/rspec/rails/example/controller_example_group_spec.rb
index 28597bdb16..a95726f933 100644
--- a/spec/rspec/rails/example/controller_example_group_spec.rb
+++ b/spec/rspec/rails/example/controller_example_group_spec.rb
@@ -80,20 +80,46 @@ module RSpec::Rails
         allow(group).to receive(:controller_class).and_return(Class.new)
       end
 
-      it "infers the anonymous controller class when infer_base_class_for_anonymous_controllers is true" do
-        allow(RSpec.configuration).to receive(:infer_base_class_for_anonymous_controllers?).and_return(true)
-        group.controller { }
+      context "when infer_base_class_for_anonymous_controllers is true" do
+        before do
+          allow(RSpec.configuration).to receive(:infer_base_class_for_anonymous_controllers?).and_return(true)
+        end
+
+        it "infers the anonymous controller class" do
+          group.controller { }
+
+          controller_class = group.metadata[:example_group][:described_class]
+          expect(controller_class.superclass).to eq(group.controller_class)
+        end
+
+        it "infers the anonymous controller class when no ApplicationController is present" do
+          hide_const '::ApplicationController'
+          group.controller { }
 
-        controller_class = group.metadata[:example_group][:described_class]
-        expect(controller_class.superclass).to eq(group.controller_class)
+          controller_class = group.metadata[:example_group][:described_class]
+          expect(controller_class.superclass).to eq(group.controller_class)
+        end
       end
 
-      it "sets the anonymous controller class to ApplicationController when infer_base_class_for_anonymous_controllers is false" do
-        allow(RSpec.configuration).to receive(:infer_base_class_for_anonymous_controllers?).and_return(false)
-        group.controller { }
+      context "when infer_base_class_for_anonymous_controllers is false" do
+        before do
+          allow(RSpec.configuration).to receive(:infer_base_class_for_anonymous_controllers?).and_return(false)
+        end
+
+        it "sets the anonymous controller class to ApplicationController" do
+          group.controller { }
+
+          controller_class = group.metadata[:example_group][:described_class]
+          expect(controller_class.superclass).to eq(ApplicationController)
+        end
+
+        it "sets the anonymous controller class to ActiveController::Base when no ApplicationController is present" do
+          hide_const '::ApplicationController'
+          group.controller { }
 
-        controller_class = group.metadata[:example_group][:described_class]
-        expect(controller_class.superclass).to eq(ApplicationController)
+          controller_class = group.metadata[:example_group][:described_class]
+          expect(controller_class.superclass).to eq(ActionController::Base)
+        end
       end
     end
   end