From 0ffaa56d51e8e0213db250ea36221c232a0c92f3 Mon Sep 17 00:00:00 2001
From: Arthur Neves <arthurnn@gmail.com>
Date: Mon, 10 Aug 2015 20:01:18 +0200
Subject: [PATCH] Dont try to call method missing in routes if thats not what
 we want

If, doing a test like this:

```
class BugTest < ActionView::TestCase
  def test_foo
    omg
  end
```

Will raise with:
```
RuntimeError: In order to use #url_for, you must include routing helpers
explicitly. For instance, `include
Rails.application.routes.url_helpers`.
```

Thats a bit confusing, as we are not calling url_for at all.
---
 actionview/lib/action_view/test_case.rb | 12 +++++++++---
 1 file changed, 9 insertions(+), 3 deletions(-)

diff --git a/actionview/lib/action_view/test_case.rb b/actionview/lib/action_view/test_case.rb
index c4bc26ca8a..f6b5696a13 100644
--- a/actionview/lib/action_view/test_case.rb
+++ b/actionview/lib/action_view/test_case.rb
@@ -263,9 +263,15 @@ module ActionView
       end
 
       def method_missing(selector, *args)
-        if @controller.respond_to?(:_routes) &&
-          ( @controller._routes.named_routes.route_defined?(selector) ||
-            @controller._routes.mounted_helpers.method_defined?(selector) )
+        begin
+          routes = @controller.respond_to?(:_routes) && @controller._routes
+        rescue
+          # Dont call routes, if there is an error on _routes call
+        end
+
+        if routes &&
+           ( routes.named_routes.route_defined?(selector) ||
+             routes.mounted_helpers.method_defined?(selector) )
           @controller.__send__(selector, *args)
         else
           super