Test engines parallely with Travis

Closes #2267

.travis.yml

@@ -1,18 +1,22 @@
 before_script:
- - "sh -e /etc/init.d/xvfb start"
- - "bundle exec rake test_app"
+ - 'sh -e /etc/init.d/xvfb start'
+ - 'export DISPLAY=:99.0'
+bundler_args: --without development production --quiet
 env:
- - DB=sqlite
- - DB=mysql
- - DB=postgres
+ - GEM='api:sqlite'
+ - GEM='api:mysql'
+ - GEM='api:postgres'
+ - GEM='core:sqlite'
+ - GEM='core:mysql'
+ - GEM='core:postgres'
+ - GEM='dash:sqlite'
+ - GEM='dash:mysql'
+ - GEM='dash:postgres'
+ - GEM='promo:sqlite'
+ - GEM='promo:mysql'
+ - GEM='promo:postgres'
 script:
- - "export DISPLAY=:99.0"
- - "alias set_gemfile='export BUNDLE_GEMFILE=\"`pwd`/Gemfile\"'"
- - "cd api; set_gemfile; bundle install --quiet; bundle exec rspec spec"
- - "cd ../core; set_gemfile; bundle install --quiet; bundle exec rspec spec"
- - "cd ../dash; set_gemfile; bundle install --quiet; bundle exec rspec spec"
- - "cd ../promo; set_gemfile; bundle install --quiet; bundle exec rspec spec"
-
+ - 'ci/travis.sh'
 notifications:
  email:
  - [email protected]
@@ -22,4 +26,4 @@ notifications:
  channels:
  - "irc.freenode.org#spree"
 rvm:
- - 1.9.3
+ - 1.9.3

ci/travis.sh

@@ -0,0 +1,9 @@
+#!/usr/bin/env bash
+vars=(${GEM//:/ })
+ENGINE=${vars[0]}
+export DB=${vars[1]}
+cd ${ENGINE}
+bundle exec rake test_app
+export BUNDLE_GEMFILE="`pwd`/Gemfile"
+bundle install --quiet
+bundle exec rspec spec