Get tests passing

.travis.yml

@@ -1,22 +1,25 @@
 language: ruby
 sudo: required
-dist: trusty
+dist: xenial
 addons:
   chrome: stable
 cache:
   bundler: true
   yarn: true
 rvm:
-  - 2.7.0
-  - 2.6.5
-  - 2.5.7
+  # TODO: Ruby 3.0 requires the rexml gem adding to the Gemfile
+  # - 3.0
+  - 2.7
+  - 2.6
+  - 2.5
   - jruby-9.1.9.0
 
 gemfile:
   # These have webpacker:
   - gemfiles/rails_5.2_no_sprockets.gemfile
   - gemfiles/rails_5.2_no_sprockets_webpacker_3.gemfile
   - gemfiles/rails_5.2_no_sprockets_webpacker_4.gemfile
+  - gemfiles/rails_5.2_no_sprockets_webpacker_5.gemfile
   # These don't have webpacker:
   - gemfiles/rails_5.2_sprockets_3.gemfile
   - gemfiles/rails_5.2_sprockets_4.gemfile
@@ -25,19 +28,19 @@ matrix:
   fast_finish: true
   exclude:
     # Oldest rails does not run on ruby 2.6
-    - rvm: 2.6.5
-    - rvm: 2.5.7
+    - rvm: 2.6
+    - rvm: 2.5
     - rvm: jruby-9.1.9.0
 
   include:
     # Newest gemfiles for universal testing
-    - rvm: 2.6.5
+    - rvm: 2.6
       gemfile: gemfiles/rails_5.2_no_sprockets_webpacker_4.gemfile
-    - rvm: 2.6.5
+    - rvm: 2.6
       gemfile: gemfiles/rails_5.2_sprockets_4.gemfile
-    - rvm: 2.5.7
+    - rvm: 2.5
       gemfile: gemfiles/rails_5.2_no_sprockets_webpacker_4.gemfile
-    - rvm: 2.5.7
+    - rvm: 2.5
       gemfile: gemfiles/rails_5.2_sprockets_4.gemfile
     - rvm: jruby-9.1.9.0
       gemfile: gemfiles/rails_5.2_no_sprockets_webpacker_4.gemfile

Appraisals

@@ -1,6 +1,10 @@
+# Notes;
+# 1) 'no_sprockets' in an appraisal name affects the setup for the tests.
+#    See SprocketsHelpers.available? in test/support/sprockets_helpers.rb
+
 appraise 'rails-5.2-sprockets_4' do
   gem 'rails', '~> 5.2.x'
-  gem 'sprockets', '~> 4.0.x'
+  gem 'sprockets', '~> 4.0'
   gem 'turbolinks', '~> 5'
   gem 'mini_racer', :platforms => :mri
   gem 'therubyrhino', :platforms => :jruby
@@ -28,6 +32,13 @@ appraise 'rails-5.2_no_sprockets_webpacker_4' do
   gem 'therubyrhino', :platforms => :jruby
 end
 
+appraise 'rails-5.2_no_sprockets_webpacker_5' do
+  gem 'rails', '~> 5.2.x'
+  gem 'webpacker', '~> 5.0'
+  gem 'mini_racer', :platforms => :mri
+  gem 'therubyrhino', :platforms => :jruby
+end
+
 appraise 'rails-5.2-no_sprockets' do
   # Appraisal adds `turbolinks` to this gemfile because it is
   # present in `./Gemfile`.