Add truffleruby to test suite (#149)

.github/workflows/spec.yml

@@ -7,13 +7,13 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        ruby: ['2.7.x' , '3.0.x', '3.1.x']
+        ruby: ['2.7.6' , '3.0.4', '3.1.2', "truffleruby+graalvm-head"]
     name: ${{ matrix.ruby }}
 
     steps:
     - uses: actions/checkout@v1
     - name: Set up ruby
-      uses: actions/setup-ruby@v1
+      uses: ruby/setup-ruby@v1
       with:
         ruby-version: ${{ matrix.ruby }}
     - name: Install dependencies
@@ -22,6 +22,10 @@ jobs:
         bundler --version
         bundle install --jobs 4 --retry 3
     - name: Test
+      if: ${{ contains(matrix.ruby, 'truffleruby') }}
+      run: bundle exec rspec --exclude-pattern "**/*_pattern_matching_spec.rb"
+    - name: Test
+      if: ${{ !contains(matrix.ruby, 'truffleruby') }}
       run: bundle exec rspec
     - name: Coveralls
       uses: coverallsapp/github-action@v1.1.2

spec/spec_helper.rb

@@ -9,10 +9,6 @@
 require "fear/rspec"
 
 RSpec.configure do |config|
-  unless RUBY_VERSION >= "2.7"
-    config.exclude_pattern = "**/*pattern_matching_spec.rb"
-  end
-
   # rspec-expectations config goes here. You can use an alternate
   # assertion/expectation library such as wrong or the stdlib/minitest
   # assertions if you prefer.