ruby on rails - rspec matcher on array argument similar to hash_including -

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in rspec can test call method receives argument hash , includes keys, or key-value pairs. is:

my_object.should_receive(:my_method).with(hash_including(:a => 'alpha'))

is there available accomplish similar match array? like?

my_object.should_receive(:my_method).with(array_including('alpha'))

how this:

my_obj.should_receive(:my_method) |arg|   arg.should be_an_instance_of(array)   arg.should include('alpha') end

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