Enforce that specs executed through aruba features use the new expect

syntax

features/support/require_expect_syntax_in_aruba_specs.rb

@@ -0,0 +1,16 @@
+if defined?(Cucumber)
+  require 'shellwords'
+  Before do
+    set_env('SPEC_OPTS', "-r#{Shellwords.escape(__FILE__)}")
+  end
+else
+  RSpec.configure do |rspec|
+    rspec.mock_with :rspec do |mocks|
+      mocks.syntax = :expect
+    end
+
+    rspec.expect_with :rspec do |expectations|
+      expectations.syntax = :expect
+    end
+  end
+end