add requirements for jupyter test on circleci

Author: etpinard

circle.yml

@@ -7,6 +7,10 @@ machine:
     PLOTLY_PYTHON_VERSIONS: 2.7.8 3.3.3 3.4.1
     PLOTLY_CORE_REQUIREMENTS_FILE: ${PLOTLY_PACKAGE_ROOT}/requirements.txt
     PLOTLY_OPTIONAL_REQUIREMENTS_FILE: ${PLOTLY_PACKAGE_ROOT}/optional-requirements.txt
+    PLOTLY_JUPYTER_TEST_DIR: ${PLOTLY_PACKAGE_ROOT}/plotly/tests/test_core/test_jupyter
+
+  node:
+    version: 4.2.1
 
 dependencies:
 
@@ -22,6 +26,9 @@ 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:
 
     - "~/.pyenv/versions"  # attempt to just cache installed pyenv things

optional-requirements.txt

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