class PasswordCharacters::PasswordAndOrdinals
Public Class Methods
new(password, ordinals)
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# File lib/password_characters.rb, line 10 def initialize(password, ordinals) raise(ArgumentError, "#{ordinals} does not ask for any characters") if ordinals.empty? raise(ArgumentError, "#{ordinals} only asks for one character") if ordinals.one? raise(ArgumentError, "#{ordinals} does not only ask for integers") unless ordinals.all? { |o| o.is_a? Fixnum } raise(ArgumentError, "#{ordinals} is not in ascending order") unless sorted?(ordinals) raise(ArgumentError, "#{ordinals.uniq.to_sentence} duplicated in #{ordinals}") unless uniq?(ordinals) raise(ArgumentError, "#{ordinals} would reveal entire password") unless ordinals.size < password.size # needs to come after checking duplicates raise(ArgumentError, "#{ordinals_out_of_bounds(password, ordinals).to_sentence} out of bounds") unless ordinals.all? { |i| i.in? ordinal_range(password) } @password_array = password.chars @indices = indices ordinals end
Public Instance Methods
characters()
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# File lib/password_characters.rb, line 27 def characters @indices.map { |i| @password_array.at i } end
Private Instance Methods
indices(ordinals)
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# File lib/password_characters.rb, line 49 def indices(ordinals) ordinals.map { |n| n - 1 } end
ordinal_range(password)
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# File lib/password_characters.rb, line 45 def ordinal_range(password) 1..password.length end
ordinals_out_of_bounds(password, ordinals)
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# File lib/password_characters.rb, line 41 def ordinals_out_of_bounds(password, ordinals) ordinals.reject { |i| i.in? ordinal_range(password) } end
sorted?(a)
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# File lib/password_characters.rb, line 33 def sorted?(a) a.sort == a end
uniq?(a)
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# File lib/password_characters.rb, line 37 def uniq?(a) a.uniq == a end