add mock installation
@@ -23,6 +23,7 @@ install:
- conda create -q -n test-environment python=$TRAVIS_PYTHON_VERSION
- source activate test-environment
- pip install codecov
+ - pip install mock
- conda install pip pytest pytest-cov
- conda install -c rdkit rdkit
- if [ "${CHAINER_VERSION}" = "prerelease" ]; then
