test and fix #call example

README.de.rdoc

@@ -909,7 +909,7 @@ anderen Route gefordert wird. Um das zu erreichen, lässt sich +call+ nutzen:
 
   get '/foo' do
     status, headers, body = call env.merge("PATH_INFO" => '/bar')
-    [status, body.upcase]
+    [status, headers, body.map(&:upcase)]
   end
 
   get '/bar' do

README.es.rdoc

@@ -884,7 +884,7 @@ servir.  Para lograr esto, podés usar +call+:
 
   get '/foo' do
     status, headers, body = call env.merge("PATH_INFO" => '/bar')
-    [status, body.upcase]
+    [status, headers, body.map(&:upcase)]
   end
 
   get '/bar' do

README.fr.rdoc

@@ -912,7 +912,7 @@ simplement +call+ :
 
   get '/foo' do
     status, headers, body = call env.merge("PATH_INFO" => '/bar')
-    [status, body.upcase]
+    [status, headers, body.map(&:upcase)]
   end
 
   get '/bar' do

README.rdoc

@@ -864,7 +864,7 @@ of calling another route. Simply use +call+ to achieve this:
 
   get '/foo' do
     status, headers, body = call env.merge("PATH_INFO" => '/bar')
-    [status, body.upcase]
+    [status, headers, body.map(&:upcase)]
   end
 
   get '/bar' do

README.ru.rdoc

@@ -859,7 +859,7 @@ Thin - это более производительный и функциона
 
   get '/foo' do
     status, headers, body = call env.merge("PATH_INFO" => '/bar')
-    [status, body.upcase]
+    [status, headers, body.map(&:upcase)]
   end
 
   get '/bar' do

README.zh.rdoc

@@ -844,7 +844,7 @@ Session被用来在请求之间保持状态。如果被激活，每一个用户
 
   get '/foo' do
     status, headers, body = call env.merge("PATH_INFO" => '/bar')
-    [status, body.upcase]
+    [status, headers, body.map(&:upcase)]
   end
 
   get '/bar' do

test/routing_test.rb

@@ -1043,6 +1043,23 @@ def authorize(username, password)
     assert not_found?
   end
 
+  it 'allows using call to fire another request internally' do
+    mock_app do
+      get '/foo' do
+        status, headers, body = call env.merge("PATH_INFO" => '/bar')
+        [status, headers, body.map(&:upcase)]
+      end
+
+      get '/bar' do
+        "bar"
+      end
+    end
+
+    get '/foo'
+    assert ok?
+    assert_body "BAR"
+  end
+
   it 'plays well with other routing middleware' do
     middleware = Sinatra.new
     inner_app  = Sinatra.new { get('/foo') { 'hello' } }