diff --git a/azure-pipelines.yml b/azure-pipelines.yml
new file mode 100644
index 000000000..19cce3eeb
--- /dev/null
+++ b/azure-pipelines.yml
@@ -0,0 +1,11 @@
+jobs:
+- job: macOS
+  pool:
+    vmImage: 'macos-10.13'
+  steps:
+  - script: |
+      gem install bundler
+      bundle install --retry=3 --jobs=4
+    displayName: 'bundle install'
+  - script: ruby -Ilib exe/rake
+    displayName: 'ruby -Ilib exe/rake'
diff --git a/test/helper.rb b/test/helper.rb
index 8e061fa45..64f7db7e2 100644
--- a/test/helper.rb
+++ b/test/helper.rb
@@ -28,7 +28,7 @@ class TaskManager
     include Rake::TaskManager
   end
 
-  RUBY = ENV["BUNDLE_RUBY"] || Gem.ruby
+  RUBY = File.realpath(ENV["BUNDLE_RUBY"] || Gem.ruby)
 
   def setup
     ARGV.clear