From 6ab1a9540b73555f2cabb54860b9ca17e8f226cb Mon Sep 17 00:00:00 2001
From: Andrew White <andyw@pixeltrix.co.uk>
Date: Fri, 14 Dec 2012 13:50:14 +0000
Subject: Clear url helper methods when routes are reloaded

Clear url helper methods when routes are reloaded by removing the
methods explicitly rather than just clearing the module because it
didn't work properly and could be the source of a memory leak.

Closes #8488.
---
 actionpack/test/dispatch/routing/route_set_test.rb | 86 ++++++++++++++++++++++
 1 file changed, 86 insertions(+)
 create mode 100644 actionpack/test/dispatch/routing/route_set_test.rb

(limited to 'actionpack/test/dispatch')

diff --git a/actionpack/test/dispatch/routing/route_set_test.rb b/actionpack/test/dispatch/routing/route_set_test.rb
new file mode 100644
index 0000000000..d57b1a5637
--- /dev/null
+++ b/actionpack/test/dispatch/routing/route_set_test.rb
@@ -0,0 +1,86 @@
+require 'abstract_unit'
+
+module ActionDispatch
+  module Routing
+    class RouteSetTest < ActiveSupport::TestCase
+      class SimpleApp
+        def initialize(response)
+          @response = response
+        end
+
+        def call(env)
+          [ 200, { 'Content-Type' => 'text/plain' }, [response] ]
+        end
+      end
+
+      setup do
+        @set = RouteSet.new
+      end
+
+      test "url helpers are added when route is added" do
+        draw do
+          get 'foo', to: SimpleApp.new('foo#index')
+        end
+
+        assert_equal '/foo', url_helpers.foo_path
+        assert_raises NoMethodError do
+          assert_equal '/bar', url_helpers.bar_path
+        end
+
+        draw do
+          get 'foo', to: SimpleApp.new('foo#index')
+          get 'bar', to: SimpleApp.new('bar#index')
+        end
+
+        assert_equal '/foo', url_helpers.foo_path
+        assert_equal '/bar', url_helpers.bar_path
+      end
+
+      test "url helpers are updated when route is updated" do
+        draw do
+          get 'bar', to: SimpleApp.new('bar#index'), as: :bar
+        end
+
+        assert_equal '/bar', url_helpers.bar_path
+
+        draw do
+          get 'baz', to: SimpleApp.new('baz#index'), as: :bar
+        end
+
+        assert_equal '/baz', url_helpers.bar_path
+      end
+
+      test "url helpers are removed when route is removed" do
+        draw do
+          get 'foo', to: SimpleApp.new('foo#index')
+          get 'bar', to: SimpleApp.new('bar#index')
+        end
+
+        assert_equal '/foo', url_helpers.foo_path
+        assert_equal '/bar', url_helpers.bar_path
+
+        draw do
+          get 'foo', to: SimpleApp.new('foo#index')
+        end
+
+        assert_equal '/foo', url_helpers.foo_path
+        assert_raises NoMethodError do
+          assert_equal '/bar', url_helpers.bar_path
+        end
+      end
+
+      private
+        def clear!
+          @set.clear!
+        end
+
+        def draw(&block)
+          @set.draw(&block)
+        end
+
+        def url_helpers
+          @set.url_helpers
+        end
+    end
+  end
+end
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