New integration tests using webrecorder-tests: (#355)

New integration tests using webrecorder-tests:
- WR_TEST=true is set for integration test run (only run with py3.6, excluded for py2.7, 3.5)
- Added .travis directory that includes two scripts: install.sh and test.sh.
- install.sh handles all installation and test.sh handles running of unit or integration tests
- sudo: true required to run headless chrome

.travis.yml

@@ -8,6 +8,16 @@ python:
 os:
   - linux
 
+addons:
+  apt:
+    packages:
+      # This is required to run new chrome on old trusty
+      - libnss3
+
+env:
+  - WR_TEST=no
+  - WR_TEST=yes
+
 addons:
   sauce_connect: true
 
@@ -16,25 +26,25 @@ cache:
     - $HOME/.cache/pip
     - node_modules
 
-sudo: false
+sudo: true
 
 install:
-  #- pip install boto certauth youtube-dl
-  #- pip install git+https://github.com/esnme/ultrajson.git
-  - python setup.py -q install
-  - pip install -r extra_requirements.txt
-  - pip install coverage pytest-cov coveralls
-  - pip install codecov
-  - npm install
+  - ./.travis/install.sh
 
 before_script:
   - export DISPLAY=:99.0
   - sh -e /etc/init.d/xvfb start
 
 script:
-  - python setup.py test
-  - cd karma-tests && make test && cd ..
+  - ./.travis/test.sh
 
 after_success:
   - codecov
 
+matrix:
+  exclude:
+    - env: WR_TEST=yes
+      python: "2.7"
+    - env: WR_TEST=yes
+      python: "3.5"
+

.travis/install.sh

@@ -0,0 +1,15 @@
+#!/bin/bash
+set -e
+
+python setup.py -q install
+pip install -r extra_requirements.txt
+pip install coverage pytest-cov coveralls
+pip install codecov
+npm install
+
+if [ "$WR_TEST" = "yes" ]; then
+    git clone https://github.com/webrecorder/webrecorder-tests.git
+    cd webrecorder-tests
+    pip install --upgrade -r requirements.txt
+    ./bootstrap.sh
+fi

.travis/test.sh

@@ -0,0 +1,10 @@
+#!/bin/bash
+set -e
+
+if [ "$WR_TEST" = "no" ]; then
+    python setup.py test
+    cd karma-tests && make test && cd ..
+else
+    cd webrecorder-tests
+    INTRAVIS=1 pytest -m "pywbtest"
+fi