Class: DynportTools::Differ

Inherits:
Object
  • Object
show all
Defined in:
lib/dynport_tools/differ.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(options = {}) ⇒ Differ

Returns a new instance of Differ.



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# File 'lib/dynport_tools/differ.rb', line 6

def initialize(options = {})
  self.diff_all = options[:diff_all] != false
  self.use_return = options[:use_return] == true
end

Instance Attribute Details

#diff_all ⇒ Object

Returns the value of attribute diff_all.



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# File 'lib/dynport_tools/differ.rb', line 3

def diff_all
  @diff_all
end

#use_return ⇒ Object

Returns the value of attribute use_return.



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# File 'lib/dynport_tools/differ.rb', line 3

def use_return
  @use_return
end

Instance Method Details

#diff(a, b) ⇒ Object 



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# File 'lib/dynport_tools/differ.rb', line 11

def diff(a, b)
  if both?(a, b, Hash)
    diff_hash_values(a, b, a.keys + (self.diff_all ? b.keys : []))
  elsif both?(a, b, Array)
    diff_hash_values(a, b, all_array_indexes(a, b))
  else
    [a, b] if a != b
  end
end

#diff_to_message_lines(the_diff, prefix = nil) ⇒ Object 



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# File 'lib/dynport_tools/differ.rb', line 21

def diff_to_message_lines(the_diff, prefix = nil)
  if the_diff.is_a?(Array)
    ["expected #{expected_value(the_diff.first)} to be #{expected_value(the_diff.at(1))}"]
  elsif the_diff.is_a?(Hash)
    the_diff.map do |key, diff|
      if diff.is_a?(Array)
        "expected #{merge_prefixes(prefix, key)} to #{use_return ? "return" : "be"} #{expected_value(diff.first)} but #{use_return ? "did" : "was"} #{expected_value(diff.at(1))}"
      else
        diff_to_message_lines(diff, merge_prefixes(prefix, key))
      end
    end.flatten
  else
    []
  end
end