fix travis/circle builds (add testing package mock)

Author: Shoshana Berleant

.travis.yml

@@ -45,6 +45,7 @@ install:
 - if [ ${TRAVIS_PYTHON_VERSION:0:1} == "2" ]; then conda install --yes vtk; fi
 - pip install python-coveralls
 - pip install nose-cov
+- pip install mock
 # Add tvtk (PIL is required by blockcanvas)
 # Install mayavi (see https://github.com/enthought/mayavi/issues/271)
 - if [ ${TRAVIS_PYTHON_VERSION:0:1} == "2" ]; then

circle.yml

@@ -21,7 +21,7 @@ dependencies:
     # Set up python environment
     - pip install --upgrade pip
     - pip install -e .
-    - pip install matplotlib sphinx ipython boto coverage dipy
+    - pip install matplotlib sphinx ipython boto coverage dipy mock
     # Add tvtk
     - pip install http://effbot.org/downloads/Imaging-1.1.7.tar.gz
     - pip install -e git+https://github.com/enthought/etsdevtools.git#egg=etsdevtools