Merge pull request #3658 from jekyll/fix-jekyll-minitest-rspec-mocks

Create #mock_expects that goes directly to RSpec Mocks.

test/helper.rb

@@ -32,6 +32,11 @@ Minitest::Reporters.use! [Minitest::Reporters::DefaultReporter.new(:color => tru
 class JekyllUnitTest < Minitest::Test
   include ::RSpec::Mocks::ExampleMethods
 
+  def mocks_expect(*args)
+    RSpec::Mocks::ExampleMethods::ExpectHost.instance_method(:expect).\
+      bind(self).call(*args)
+  end
+
   def before_setup
     ::RSpec::Mocks.setup
     super

test/test_command.rb

@@ -4,10 +4,11 @@ class TestCommand < JekyllUnitTest
   context "when calling .add_build_options" do
     should "add common options" do
       cmd = Object.new
-      expect(cmd).to receive(:option).at_least(:once)
+      mocks_expect(cmd).to receive(:option).at_least(:once)
       Command.add_build_options(cmd)
     end
   end
+
   context "when calling .process_site" do
     context "when fatal error occurs" do
       should "exit with non-zero error code" do