Some basic route discovery tests

railties/test/application/routing_test.rb

+require 'isolation/abstract_unit'
+require 'rack/test'
+
+module ApplicationTests
+  class RoutingTest < Test::Unit::TestCase
+    include ActiveSupport::Testing::Isolation
+    include Rack::Test::Methods
+
+    def setup
+      build_app
+    end
+
+    def app
+      @app ||= begin
+        boot_rails
+        require "#{app_path}/config/environment"
+
+        Rails.application
+      end
+    end
+
+    test "simple controller" do
+      controller :foo, <<-RUBY
+        class FooController < ActionController::Base
+          def index
+            render :text => "foo"
+          end
+        end
+      RUBY
+
+      get '/foo'
+      assert_equal 'foo', last_response.body
+    end
+
+    test "multiple controllers" do
+      controller :foo, <<-RUBY
+        class FooController < ActionController::Base
+          def index
+            render :text => "foo"
+          end
+        end
+      RUBY
+
+      controller :bar, <<-RUBY
+        class BarController < ActionController::Base
+          def index
+            render :text => "bar"
+          end
+        end
+      RUBY
+
+      get '/foo'
+      assert_equal 'foo', last_response.body
+
+      get '/bar'
+      assert_equal 'bar', last_response.body
+    end
+
+    test "nested controller" do
+      controller 'foo', <<-RUBY
+        class FooController < ActionController::Base
+          def index
+            render :text => "foo"
+          end
+        end
+      RUBY
+
+      controller 'admin/foo', <<-RUBY
+        module Admin
+          class FooController < ActionController::Base
+            def index
+              render :text => "admin::foo"
+            end
+          end
+        end
+      RUBY
+
+      get '/foo'
+      assert_equal 'foo', last_response.body
+
+      get '/admin/foo'
+      assert_equal 'admin::foo', last_response.body
+    end
+  end
+end