Enforce 90% Code Coverage for Unit Tests.

Author: Ignacio Quintero

.travis.yml

@@ -2,6 +2,9 @@ language: python
 python:
 - '2.7'
 - '3.5'
-install: pip install tox-travis
+install: pip install tox-travis codecov
 script:
 - tox tests/unit
+after_success:
+  - codecov
+

tox.ini

@@ -32,10 +32,12 @@ passenv =
     AWS_ACCESS_KEY_ID
     AWS_SECRET_ACCESS_KEY
     AWS_SESSION_TOKEN
+    COVERAGE_THRESHOLD
 # {posargs} can be passed in by additional arguments specified when invoking tox.
 # Can be used to specify which tests to run, e.g.: tox -- -s
 commands =
-    pytest {posargs}
+    coverage run --source sagemaker -m py.test {posargs}
+    coverage report --fail-under={env:COVERAGE_THRESHOLD:90} --omit */tensorflow/tensorflow_serving/*
 deps =
     pytest
     pytest-cov