[TEST] Execute tests in the test:all Rake task manually, to prevent dependency loading errors

Should prevent errors like:

    .../elasticsearch-rails/elasticsearch-rails/test/test_helper.rb:21:in `require': cannot load such file -- rails/version (LoadError)
      from .../elasticsearch-rails/elasticsearch-rails/test/test_helper.rb:21:in `<top (required)>'

See:

* https://api.travis-ci.org/jobs/18002966/log.txt?deansi=true
* http://build.elasticsearch.com/view/Clients/job/es-rails_core/ES_V=1.x_nightly,GEMFILE=4.0.gemfile,RUBY_V=2.0.0-p247,label=not-es/lastCompletedBuild/consoleText

Author: karmi

.travis.yml

@@ -29,7 +29,7 @@ before_script:
   - rake bundle:install
 
 script:
-  - SERVER=start TEST_CLUSTER_COMMAND=/usr/share/elasticsearch/bin/elasticsearch TEST_BUNDLE_GEMFILE=$TEST_BUNDLE_GEMFILE bundle exec rake test:all
+  - SERVER=launch TEST_CLUSTER_COMMAND=/usr/share/elasticsearch/bin/elasticsearch TEST_BUNDLE_GEMFILE=$TEST_BUNDLE_GEMFILE bundle exec rake test:all
 
 notifications:
   disable: true

Rakefile

@@ -65,26 +65,31 @@ namespace :test do
   desc "Run integration tests in all subprojects"
   task :integration do
     Rake::Task['test:ci_reporter'].invoke if ENV['CI']
-    subprojects.each do |project|
-      puts '-'*80
-      sh "cd #{__current__.join(project)} && unset BUNDLE_GEMFILE &&" +
-         %Q| #{ ENV['TEST_BUNDLE_GEMFILE'] ? "BUNDLE_GEMFILE=#{ENV['TEST_BUNDLE_GEMFILE']}" : '' }|  +
-         " bundle exec rake test:integration"
-      puts "\n"
-    end
+
+    # 1/ elasticsearch-model
+    #
+    puts '-'*80
+    sh "cd #{__current__.join('elasticsearch-model')} && unset BUNDLE_GEMFILE &&" +
+       %Q| #{ ENV['TEST_BUNDLE_GEMFILE'] ? "BUNDLE_GEMFILE=#{ENV['TEST_BUNDLE_GEMFILE']}" : '' }|  +
+       " bundle exec rake test:integration"
+    puts "\n"
+
+    # 2/ elasticsearch-rails
+    #
+    puts '-'*80
+    sh "cd #{__current__.join('elasticsearch-rails')} && unset BUNDLE_GEMFILE &&" +
+       " bundle exec rake test:integration"
+    puts "\n"
+
     Rake::Task['test:coveralls'].invoke if ENV['CI'] && defined?(RUBY_VERSION) && RUBY_VERSION > '1.9'
   end
 
   desc "Run all tests in all subprojects"
   task :all do
     Rake::Task['test:ci_reporter'].invoke if ENV['CI']
-    subprojects.each do |project|
-      puts '-'*80
-      sh "cd #{__current__.join(project)} && unset BUNDLE_GEMFILE &&" +
-         %Q| #{ ENV['TEST_BUNDLE_GEMFILE'] ? "BUNDLE_GEMFILE=#{ENV['TEST_BUNDLE_GEMFILE']}" : '' }|  +
-         " bundle exec rake test:all"
-      puts "\n"
-    end
+
+    Rake::Task['test:unit'].invoke
+    Rake::Task['test:integration'].invoke
   end
 
   task :coveralls do