Allow Rails 5.1 and test with it

Author: y-yagi

.travis.yml

@@ -26,14 +26,20 @@ matrix:
   include:
     - gemfile: gemfiles/Gemfile-rails-5-0
       rvm: 2.3.4
+    - gemfile: gemfiles/Gemfile-rails-5-1
+      rvm: 2.3.4
     - gemfile: Gemfile
       rvm: 2.3.4
     - gemfile: gemfiles/Gemfile-rails-5-0
       rvm: 2.4.1
+    - gemfile: gemfiles/Gemfile-rails-5-1
+      rvm: 2.4.1
     - gemfile: Gemfile
       rvm: 2.4.1
     - gemfile: gemfiles/Gemfile-rails-5-0
       rvm: ruby-head
+    - gemfile: gemfiles/Gemfile-rails-5-1
+      rvm: ruby-head
     - gemfile: Gemfile
       rvm: ruby-head
 

gemfiles/Gemfile-rails-5-1

@@ -0,0 +1,8 @@
+source "https://rubygems.org"
+
+# Specify your gem"s dependencies in sass-rails.gemspec
+gemspec path: ".."
+
+gem "rails", "~> 5.1.0"
+gem "sprockets", "~> 4.0.0.beta2"
+gem "sprockets-rails", "~> 3.0.4"

sass-rails.gemspec

@@ -13,7 +13,7 @@ Gem::Specification.new do |s|
   s.description = %q{Sass adapter for the Rails asset pipeline.}
   s.license     = %q{MIT}
 
-  s.add_dependency 'railties',        '>= 4.0.0', '< 5.1'
+  s.add_dependency 'railties',        '>= 4.0.0', '< 5.2'
   s.add_dependency 'sass',            '~> 3.4'
   s.add_dependency 'sprockets-rails', '< 4.0'
   s.add_dependency 'sprockets',       '~> 4.x'