Module: MiniTest::Assertions

Defined in:
lib/minitest/pretty_diff.rb

Instance Method Summary collapse

Instance Method Details

#mu_pp(obj) ⇒ Object

Returns a pretty-printed version of obj.



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# File 'lib/minitest/pretty_diff.rb', line 9

def mu_pp(obj)
  s = if obj.is_a?(Hash) || obj.is_a?(Array)
    JSON.pretty_generate(sort_keys(obj))
  else
    obj.inspect
  end

  s = s.encode(Encoding.default_external) if defined? Encoding
  s
end

#sort_keys(obj) ⇒ Object

Recursively sort the keys of obj, which is typically a hash. Recurses into arrays (to allow nested structures), but does not sort them.



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# File 'lib/minitest/pretty_diff.rb', line 24

def sort_keys(obj)
  if obj.is_a?(Hash)
    obj.keys.sort.reduce(Hash.new) do |memo, key|
      memo.merge({ key => sort_keys(obj[key]) })
    end
  elsif obj.is_a?(Array)
    obj.map do |item|
      sort_keys(item)
    end
  else
    obj
  end
end