setup of UI tests

This sets up UI tests. It uses behat/mink/selenium to run the tests on
saucelabs.com
Included are some basic tests
1. Login as admin
2. Tests to cover the fix made in PR #26979

.travis.yml

@@ -14,6 +14,8 @@ env:
   global:
     - TEST_DAV=$(tests/travis/changed_app.sh dav)
     - TC=litmus-v2
+    - SRV_HOST_NAME=owncloud
+    - SRV_HOST_PORT=8888
   matrix:
     - DB=sqlite
 
@@ -26,22 +28,28 @@ addons:
   apt:
     packages:
     - realpath
+  hosts:
+    - owncloud
+  sauce_connect:
 
 before_install:
   - make
-  - sh -c "if [ '$TEST_DAV' = '1' ]; then bash tests/travis/before_install.sh $DB; fi"
+  - sh -c "if [ '$TEST_DAV' = '1' ] || [ '$TC' = 'selenium' ]; then bash tests/travis/before_install.sh $DB; fi"
 
 install:
-  - sh -c "if [ '$TEST_DAV' = '1' ]; then bash tests/travis/install.sh $DB; fi"
+  - sh -c "if [ '$TEST_DAV' = '1' ] || [ '$TC' = 'selenium' ]; then bash tests/travis/install.sh $DB; fi"
   - sh -c "if [ '$TEST_DAV' = '1' ]; then bash apps/dav/tests/travis/$TC/install.sh; fi"
 
+before_script:
+  - sh -c "if [ '$TC' = 'selenium' ]; then bash tests/travis/start_php_dev_server.sh; fi"
 
 script:
   - sh -c "if [ '$TC' = 'syntax' ]; then make test-php-lint ; fi"
   - sh -c "if [ '$TEST_DAV' != '1' ]; then echo \"Not testing DAV\"; fi"
   - sh -c "if [ '$TEST_DAV' = '1' ]; then echo \"Testing DAV\"; fi"
 
   - sh -c "if [ '$TEST_DAV' = '1' ]; then bash apps/dav/tests/travis/$TC/script.sh; fi"
+  - sh -c "if [ '$TC' = 'selenium' ] && [ ! -z "$SAUCE_USERNAME" ] && [ ! -z "$SAUCE_ACCESS_KEY" ]; then bash tests/travis/start_behat_tests.sh; fi"
 
 matrix:
   include:
@@ -51,6 +59,8 @@ matrix:
       env: DB=sqlite;TC=carddav
     - php: 5.6
       env: DB=sqlite;TC=caldav
+    - php: 5.6
+      env: DB=pgsql;TC=selenium
     - php: 5.6
       env: DB=sqlite;TC=syntax;TEST_DAV=0
     - php: 7.0

composer.json

@@ -17,6 +17,10 @@
         "jakub-onderka/php-console-highlighter": "^0.3.2",
         "phpunit/phpunit": "^5.5",
         "mikey179/vfsStream": "^1.6",
+        "behat/mink-extension": "^2.2",
+        "behat/mink-goutte-driver": "^1.2",
+        "behat/mink-selenium2-driver": "^1.3",
+        "sensiolabs/behat-page-object-extension": "^2.0",
         "behat/behat": "^3.0",
         "jarnaiz/behat-junit-formatter": "^1.3"
     },