rake test fails with mocha > 2.1.0

When using mocha > 2.1.0, the rake test fails:

Error: test_upload_should_raise_error_if_gets_not_ok(TestUpload):
  NoMethodError: undefined method `sequences' for "file::stat":String
  
          expectation.in_sequence(@mockery.sequences.last) if @mockery.sequences.any?
                                                                      ^^^^^^^^^^
/home/cheramr/net-scp/vendor/bundle/ruby/3.1.0/gems/mocha-2.3.0/lib/mocha/mock.rb:157:in `block in stubs'
/home/cheramr/net-scp/vendor/bundle/ruby/3.1.0/gems/mocha-2.3.0/lib/mocha/argument_iterator.rb:10:in `block in each'
/home/cheramr/net-scp/vendor/bundle/ruby/3.1.0/gems/mocha-2.3.0/lib/mocha/argument_iterator.rb:9:in `each'
/home/cheramr/net-scp/vendor/bundle/ruby/3.1.0/gems/mocha-2.3.0/lib/mocha/argument_iterator.rb:9:in `each'
/home/cheramr/net-scp/vendor/bundle/ruby/3.1.0/gems/mocha-2.3.0/lib/mocha/mock.rb:152:in `stubs'
/home/cheramr/net-scp/test/common.rb:86:in `stub!'
/home/cheramr/net-scp/test/common.rb:47:in `prepare_file'
/home/cheramr/net-scp/test/test_upload.rb:273:in `test_upload_should_raise_error_if_gets_not_ok'
     270:   end
     271: 
     272:   def test_upload_should_raise_error_if_gets_not_ok
  => 273:     prepare_file("/path/to/local.txt", "")
     274: 
     275:     expect_scp_session "-t /path/to/remote.txt" do |channel|
     276:       channel.gets_data "\1"

freerange/mocha#645 gives the reason - Mocha::Mock.new is not supported, one have to use mock() :

net-scp/test/common.rb

Line 125 in 5ed6181

stat = Mocha::Mock.new("file::stat")
net-scp/test/common.rb

Line 85 in 5ed6181

stat = Mocha::Mock.new("file::stat")

This does not work as the classes FileEntry and Directory do not inherit Test::Unit::TestCase and are not monkey-patched with mocha (as far as I understand this right...)