Update multi app tests to verify responses

spec/multi_application_spec.rb

@@ -13,41 +13,52 @@
   end
 
   context "with a 200 response" do
+    let(:rage_response) { [200, {}, []] }
+
     it "calls Rage app" do
-      expect(rage_verifier).to receive(:call).with(env).and_return([200, {}, []])
-      subject
+      expect(rage_verifier).to receive(:call).with(env).and_return(rage_response)
+      expect(subject).to eq(rage_response)
     end
   end
 
   context "with a 404 response" do
+    let(:rage_response) { [404, {}, []] }
+
     it "calls Rage app" do
-      expect(rage_verifier).to receive(:call).with(env).and_return([404, {}, []])
-      subject
+      expect(rage_verifier).to receive(:call).with(env).and_return(rage_response)
+      expect(subject).to eq(rage_response)
     end
   end
 
   context "with an async response" do
+    let(:rage_response) { [:__http_defer__, Fiber.new {}] }
+
     it "calls Rage app" do
-      expect(rage_verifier).to receive(:call).with(env).and_return([:__http_defer__, Fiber.new {}])
-      subject
+      expect(rage_verifier).to receive(:call).with(env).and_return(rage_response)
+      expect(subject).to eq(rage_response)
     end
   end
 
   context "with an X-Cascade response" do
+    let(:rage_response) { [200, { "X-Cascade" => "pass" }, []] }
+    let(:rails_response) { :test_rails_response }
+
     it "calls both Rage and Rails apps" do
-      expect(rage_verifier).to receive(:call).with(env).and_return([200, { "X-Cascade" => "pass" }, []])
-      expect(rails_verifier).to receive(:call).with(env)
-      subject
+      expect(rage_verifier).to receive(:call).with(env).and_return(rage_response)
+      expect(rails_verifier).to receive(:call).with(env).and_return(rails_response)
+      expect(subject).to eq(rails_response)
     end
   end
 
   context "with Rails internal request" do
     let(:env) { { "PATH_INFO"=> "/rails/action_mailbox" } }
+    let(:rage_response) { [200, {}, []] }
+    let(:rails_response) { :test_rails_response }
 
     it "calls both Rage and Rails apps" do
-      expect(rage_verifier).to receive(:call).with(env).and_return([200, {}, []])
-      expect(rails_verifier).to receive(:call).with(env)
-      subject
+      expect(rage_verifier).to receive(:call).with(env).and_return(rage_response)
+      expect(rails_verifier).to receive(:call).with(env).and_return(rails_response)
+      expect(subject).to eq(rails_response)
     end
   end
 end