Add pytest-mock to travis dependencies

diff --git a/.travis.yml b/.travis.yml
index 58984a175eefdeb28a5c8eeeb82014dc05afe8c0..cbd252fce33803e37d0399c86ae1c4da54e203d7 100644 (file)
--- a/.travis.yml
+++ b/.travis.yml
@@ -6,7 +6,7 @@ python:
     - "3.6"
 install:
     - pip install -U pip wheel coverage codecov
-    - pip install -r requirements.txt pytest
+    - pip install -r requirements.txt pytest pytest-mock
     - python setup.py develop
 script:
     - coverage run -m py.test -v tests/ && codecov