.travis.yml in pickle-0.5.5 vs .travis.yml in pickle-0.6.0

@@ -1,15 +1,28 @@
 language: ruby
 dist: xenial
 cache: bundler
 rvm:
-  - 2.4.1
-  - 2.3.4
-  - 2.2.7
-  - 2.1.10
+  #- 2.7.1
+  - 2.6.6
+  - 2.5.8
+  #- ruby-head
+gemfile:
+  - gemfiles/Gemfile-rails.5.0.x
+  - gemfiles/Gemfile-rails.5.1.x
+  - gemfiles/Gemfile-rails.5.2.x
+  - gemfiles/Gemfile-rails.5.2.x-cukes-4
+  - gemfiles/Gemfile-rails.5.2.x-cukes-5
+  - gemfiles/Gemfile-rails.6.0.x
+  - gemfiles/Gemfile-rails.6.0.x-cukes-5
+  #- gemfiles/Gemfile-rails.edge
 matrix:
   allow_failures:
-    - rvm: 2.1.10
+    - rvm: ruby-head
+    - rvm: 2.7.1
+    - gemfile: gemfiles/Gemfile-rails.edge
+    - gemfile: gemfiles/Gemfile-rails.5.2.x-cukes-5
+    - gemfile: gemfiles/Gemfile-rails.6.0.x-cukes-5
   fast_finish: true
 
 script:
   - gem install bundler
   - bundle exec rake spec