[WIP] Add docker run in travis tests (opsdroid#319)

* Add docker build and run in test suites

* Fix container name in test suite

* Add docker logs to travis output

* Move docker test into tox config

* Add docker service to travis

* Add docker to tox's whitelist externals

* Fix tox docker test

* Add unit tests into docker container

.travis.yml

@@ -2,6 +2,8 @@ sudo: false
 matrix:
   fast_finish: true
   include:
+    - python: "3.5"
+      env: TOXENV=docker
     - python: "3.5"
       env: TOXENV=lint
     - python: "3.5"
@@ -11,6 +13,8 @@ matrix:
 cache:
   directories:
     - $HOME/.cache/pip
+services:
+  - docker
 install: pip install -U tox coveralls codecov
 language: python
 script: tox

tox.ini

@@ -1,5 +1,5 @@
 [tox]
-envlist = py35, py36, lint
+envlist = py35, py36, lint, docker
 skip_missing_interpreters = True
 
 [testenv]
@@ -19,3 +19,19 @@ commands =
      flake8
      pylint opsdroid
      pydocstyle opsdroid tests
+
+[testenv:docker]
+basepython = python3
+ignore_errors = True
+whitelist_externals = 
+    docker
+    bash
+commands =
+     docker build -t opsdroid-image:tmp .
+     docker run -d --name opsdroid-container opsdroid-image:tmp
+     docker exec -e TOXENV=py35 opsdroid-container tox
+     docker exec opsdroid-container sh -c "apk add --no-cache curl && curl -sSf http://localhost:8080/ || exit 1"
+     docker logs opsdroid-container
+     docker stop opsdroid-container
+     docker rm opsdroid-container
+     docker rmi opsdroid-image:tmp