Merge pull request #32 from orien/github-actions

Use GitHub Actions for CI

.github/workflows/test.yml

@@ -0,0 +1,18 @@
+---
+name: Tests
+on: [ push, pull_request ]
+jobs:
+  test:
+    name: Test (Ruby ${{ matrix.ruby }})
+    runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        ruby: [ '2.0', '2.1', '2.2', '2.3', '2.4', '2.5', '2.6', '2.7', '3.0', '3.1', '3.2', 'jruby', 'truffleruby' ]
+    steps:
+      - uses: actions/checkout@v3
+      - uses: ruby/setup-ruby@v1
+        with:
+          ruby-version: ${{ matrix.ruby }}
+          bundler-cache: true
+      - run: bundle exec rake

Gemfile

@@ -3,7 +3,3 @@ gemspec
 
 gem 'rake'
 gem 'guard-rspec'
-
-platforms :rbx do
-  gem 'rubysl', '~> 2.0'
-end

README.md

@@ -1,6 +1,6 @@
 ### `String#blank?` Ruby Extension
 
-[![Gem Version](https://badge.fury.io/rb/fast_blank.png)](http://badge.fury.io/rb/fast_blank) [![Build Status](https://travis-ci.org/SamSaffron/fast_blank.png?branch=master)](https://travis-ci.org/SamSaffron/fast_blank)
+[![Gem Version](https://badge.fury.io/rb/fast_blank.svg)](http://badge.fury.io/rb/fast_blank) [![Build Status](https://github.com/SamSaffron/fast_blank/actions/workflows/test.yml/badge.svg?branch=master)](https://github.com/SamSaffron/fast_blank/actions/workflows/test.yml)
 
 `fast_blank` is a simple C extension which provides a fast implementation of [Active Support's `String#blank?` method](http://api.rubyonrails.org/classes/String.html#method-i-blank-3F).