Optimize CI/CD pipeline for faster testing

.gitlab-ci.yml

@@ -15,14 +15,11 @@ stages:
     - profiling
     - benchmarks
     - deploy_docs
-cache:
-    paths:
-        - .tox
 
 before_script:
     - echo "Setting Up...."
 
-tests:
+.test-setup: &test-setup
     stage: tests
     services:
         - redis
@@ -34,9 +31,37 @@ tests:
         - export PATH=/tmp/miniconda3/bin:$PATH
         - pip install tox awscli
         - conda update -n root conda -y
-        - conda install -c conda-forge tox-conda
+        - conda install -c conda-forge tox-conda -y
+
+test-py36:
+    <<: *test-setup
+    script:
+        - xvfb-run tox -v --recreate -e py36
+
+test-py37:
+    <<: *test-setup
+    script:
+        - xvfb-run tox -v --recreate -e py37
+
+test-examples:
+    <<: *test-setup
+    script:
+        - xvfb-run tox -v --recreate -e examples
+
+test-notebooks:
+    <<: *test-setup
+    script:
+        - xvfb-run tox -v --recreate -e notebooks
+
+test-docs:
+    <<: *test-setup
+    script:
+        - xvfb-run tox -v --recreate -e docs
+
+test-coverage:
+    <<: *test-setup
     script:
-        - xvfb-run tox -v --recreate
+        - xvfb-run tox -v --recreate -e coverage
 
 build_and_deploy_docs:
     image: "python:latest"
@@ -44,7 +69,7 @@ build_and_deploy_docs:
     only:
         - master
     dependencies:
-        - tests
+        - test-docs
     before_script:
         - apt update
         - apt install -y libgl1-mesa-glx xvfb xdg-utils libcairo2-dev libjpeg-dev libgif-dev graphviz libgraphviz-dev python-pyglet
@@ -66,7 +91,11 @@ build_and_deploy_docs:
 
 profiling:
     dependencies:
-        - tests
+        - test-py36
+        - test-py37
+        - test-examples
+        - test-notebooks
+        - test-coverage
     stage: profiling
     only:
         variables:
@@ -85,7 +114,11 @@ profiling:
 
 benchmarks:
     dependencies:
-        - tests
+        - test-py36
+        - test-py37
+        - test-examples
+        - test-notebooks
+        - test-coverage
     stage: benchmarks
     only:
         variables:

requirements_continuous_integration.txt

@@ -17,7 +17,7 @@ jupyter>=1.0.0
 jupyter-core>=4.5.0
 jupyter-contrib-nbextensions
 notebook>=5.7.8
-PyVirtualDisplay==0.2.5
-pytest-xvfb>=1.2.0
+PyVirtualDisplay==1.3.2
+pytest-xvfb==2.0.0
 git+https://github.com/who8mylunch/Jupyter_Canvas_Widget.git@bd151ae1509c50b5809944dd3294f58b7b069c86
 m2r>=0.2.1