Based on 50d23bc2.

This reverts commit f53c247d.

This allows test classes that are not subclasses of
ActiveSupport::TestCase (like those in rspec-rails) to interact with
with this variable without having to reference ActiveSupport::TestCase.

Assigning cookies for test cases should now use cookies[], e.g:

  cookies[:email] = 'user@example.com'
  get :index
  assert_equal 'user@example.com', cookies[:email]

To clear the cookies, use clear, e.g:

  cookies.clear
  get :index
  assert_nil cookies[:email]

We now no longer write out HTTP_COOKIE and the cookie jar is
persistent between requests so if you need to manipulate the environment
for your test you need to do it before the cookie jar is created.

This reduces false positives that come from using ints in params in
tests, which do not get converted to strings in the tests. In
implementations going through rack, they do get converted to strings.

- David Chelimsky and Sam Umbach

since ActionDispatch::Http::Parameters#encode_params will force encoding on all params strings (when using an encoding aware Ruby), dup all strings passed into process.  This prevents modification of params passed in and, more importantly, doesn't barf when a frozen string is passed
thanks and high fives to kinsteronline

Signed-off-by: NJosé Valim <jose.valim@gmail.com>

Signed-off-by: NJosé Valim <jose.valim@gmail.com>

code gardening: we have assert_(nil|blank|present), more concise, with better default failure messages - let's use them

Fixed a globbed route issue where slashes were being escaped, causing assert_routing to fail. [#5135 state:resolved]
Signed-off-by: NJosé Valim <jose.valim@gmail.com>

	* Refactored ActionPatch to use fullpath instead