
Crate Test Layer
****************

This layer starts and stops a "Crate" instance on a give port and a
given crate node name:

   >>> from crate.testing.layer import CrateLayer
   >>> import random

   >>> port = 9295

   >>> layer =  CrateLayer('crate',
   ...                     crate_home=crate_path(),
   ...                     crate_exec=crate_path('bin', 'crate'),
   ...                     port=port,)

Lets start the layer:

   >>> layer.start()

Now we can access the "Crate" instance on the defined port:

   >>> import requests

   >>> stats_uri = "http://127.0.0.1:{0}/_stats".format(port)
   >>> response = requests.get(stats_uri)
   >>> response.status_code
   200

The layer can be shutdown using its "stop()" method:

   >>> layer.stop()
