RSpec matcher to compare two file, using their MD5 hashes

be_same_file_as.rb

RSpec::Matchers.define(:be_same_file_as) do |exected_file_path|
  match do |actual_file_path|
    expect(md5_hash(actual_file_path)).to eq(md5_hash(expected_file_path))
  end
  
  def md5_hash(file_path)
    Digest::MD5.hexdigest(File.read(file_path))    
  end
end

# e.g. path_to_foo.should be_same_file_as(path_to_bar)

Just one small additional correction -- a typo in expected_file_path.

You have the same typo on line 1 😅