add requirements for jupyter test on circleci

Author: etpinard

circle.yml

@@ -8,6 +8,10 @@ machine:
     PLOTLY_TOX_PYTHON_33: /home/ubuntu/.pyenv/versions/3.3.3/bin/python3.3
     PLOTLY_TOX_PYTHON_34: /home/ubuntu/.pyenv/versions/3.4.3/bin/python3.4
     PLOTLY_TOX_PYTHON_35: /home/ubuntu/.pyenv/versions/3.5.0/bin/python3.5
+    PLOTLY_JUPYTER_TEST_DIR: ${PLOTLY_PACKAGE_ROOT}/plotly/tests/test_core/test_jupyter
+
+  node:
+    version: 4.2.1
 
 dependencies:
 
@@ -21,6 +25,9 @@ dependencies:
     # we need to cd out of the project root to ensure the install worked
     - cd ~ && python -c "import plotly"
 
+    # install jupyter test JS requirements
+    - cd ${PLOTLY_JUPYTER_TEST_DIR} && npm i
+
   cache_directories:
 
     # cache everything that tox installs for us.

optional-requirements.txt

@@ -24,3 +24,6 @@ pandas
 ## scipy deps for some FigureFactory functions ##
 scipy
 
+## jupyter ##
+jupyter
+ipykernel