Make test following reality.

src/zc/buildout/networkcache.txt

-Using buildout with network-cache
-=================================
+Using buildout with cache over network
+======================================
 
-NOTE: You need to install the networkcached into your system to run this
-      test, otherwise it will not be possible to get proper results.
-
-The buildout itself must be able to cache everything which is downloadble
-into an external and universal cache server.
-
-Such feature is not enabled by default, but you can enable defining the
-option called ```network-cache```.
+Note: We are in process of preparing docs. This is only showcase.
 
    >>> write(sample_buildout, 'buildout.cfg',
    ... '''
    ... [buildout]
-   ... network-cache = http://127.0.0.1:5001/
+   ... sha-cache = http://127.0.0.1:1/
+   ... sha-dir = http://127.0.0.1:2/
    ... find-links = %(link_server)s
    ... parts = eggs
    ...
@@ -25,12 +19,16 @@ option called ```network-cache```.
    >>> print system(buildout)
    Installing eggs.
    Getting distribution for 'demo==0.2'.
-   The url is not cached yet: http://localhost/demo-0.2-py2.6.egg
+   Downloading demo-0.2-py2.7.egg from network cache.
+   Fail to download from network cache demo-0.2-py2.7.egg: [Errno 111] Connection refused
+   Fail to upload file. [Errno 111] Connection refused
    Got demo 0.2.
    Getting distribution for 'demoneeded'.
-   The url is not cached yet: http://localhost/demoneeded-1.2c1.zip
+   Downloading demoneeded-1.2c1.zip from network cache.
+   Fail to download from network cache demoneeded-1.2c1.zip: [Errno 111] Connection refused
+   Fail to upload file. [Errno 111] Connection refused
    Got demoneeded 1.2c1.
-   ...
+   <BLANKLINE>
 
    >>> from glob import glob
    >>> from os.path import join
@@ -40,6 +38,8 @@ option called ```network-cache```.
    >>> print system(buildout)
    Updating eggs.
    Getting distribution for 'demoneeded'.
-   Downloading from network cache http://127.0.0.1:5001/105e4a9ba3f9c7f45b46cc8c47ac2d2ca6440ae564538090c6d390a8959dd03e
+   Downloading demoneeded-1.2c1.zip from network cache.
+   Fail to download from network cache demoneeded-1.2c1.zip: [Errno 111] Connection refused
+   Fail to upload file. [Errno 111] Connection refused
    Got demoneeded 1.2c1.
-   ...
+   <BLANKLINE>