From 7082066b7c274d212e9a8aa2bc8714aef7c90c5b Mon Sep 17 00:00:00 2001
From: Samuel Williams <samuel.williams@oriontransfer.co.nz>
Date: Thu, 3 May 2018 00:36:42 +1200
Subject: [PATCH] Add spec for absolute URLs.

---
 lib/rack/test.rb          | 1 +
 spec/fixtures/fake_app.rb | 4 ++++
 spec/rack/test_spec.rb    | 5 +++++
 3 files changed, 10 insertions(+)

diff --git a/lib/rack/test.rb b/lib/rack/test.rb
index 1042b247..e51c9854 100644
--- a/lib/rack/test.rb
+++ b/lib/rack/test.rb
@@ -197,6 +197,7 @@ def follow_redirect!
 
         # Compute the next location by appending the location header with the
         # last request, as per https://tools.ietf.org/html/rfc7231#section-7.1.2
+        # Adding two absolute locations returns the right-hand location
         next_location = URI.parse(last_request.url) + URI.parse(last_response['Location'])
 
         send(
diff --git a/spec/fixtures/fake_app.rb b/spec/fixtures/fake_app.rb
index b0a53e9a..4b43ba55 100644
--- a/spec/fixtures/fake_app.rb
+++ b/spec/fixtures/fake_app.rb
@@ -28,6 +28,10 @@ class FakeApp < Sinatra::Base
         'Hello World!'
       end
 
+      get '/absolute/redirect' do
+        [301, { 'location' => 'https://www.google.com' }, []]
+      end
+
       post '/redirect' do
         if params['status']
           redirect to('/redirected'), Integer(params['status'])
diff --git a/spec/rack/test_spec.rb b/spec/rack/test_spec.rb
index 72f470fc..01703bf2 100644
--- a/spec/rack/test_spec.rb
+++ b/spec/rack/test_spec.rb
@@ -366,6 +366,11 @@ def close
       expect(last_request.env['HTTP_REFERER']).to eql('http://example.org/redirect')
     end
 
+    it 'follows absolute redirects' do
+      get '/absolute/redirect'
+      expect(last_response.headers['location']).to be == 'https://www.google.com'
+    end
+
     it 'follows nested redirects' do
       get '/nested/redirect'