split up rspec, integration and cucumber tests

Author: Bulat Shakirzyanov

.travis.yml

@@ -1,5 +1,5 @@
 language: ruby
-script: bundle exec rake test
+script: bundle exec rake $TEST_SUITE
 bundler_args: --without development docs
 before_install:
   - sudo apt-get install -y python-pip
@@ -26,6 +26,9 @@ env:
     - CASSANDRA_VERSION=2.1.3
     - CASSANDRA_VERSION=2.0.12
     - CASSANDRA_VERSION=1.2.19
+    - TEST_SUITE=rspec
+    - TEST_SUITE=integration
+    - TEST_SUITE=cucumber
 matrix:
   allow_failures:
     - rvm: rbx-2