input_maska_spec.rb

input_maska_spec.rb

def maskarad(input, maska)
  input = input.to_s.chars
 
  maska.gsub(/@/) do |at|
    input.shift
  end.gsub(/^-*/, '').gsub(/-*$/, '') + input.join
end
 
=begin Input data
  Маска               | Номер | Результат
  ------------------------------------------
  @@@                 | 5432  | 5432
  @-@@                | 5432  | 5-432
  @-@@                | @432  | @-432
  РОС@@-@@-@@@        | 5432  | РОС54-32
  РОС@@-@@-@@@        | 42    | РОС42
  @-@@-TAIL           | 5432  | 5-43-TAIL2
  @-@@-@@@@@@@@@-TAIL | 5432  | 5-43-2-TAIL
=end
 
 
describe 'Maska' do
  it 'input 5432 apply mask @@@ and get result 5432' do
    expect(maskarad('5432', '@@@')).to eql('5432')
  end
 
  it 'input 5432 apply mask @-@@ and get result 5-432' do
    expect(maskarad('5432', '@-@@')).to eql('5-432')
  end
 
  it 'input @432 apply mask @-@@ and get result @-432' do
    expect(maskarad('@432', '@-@@')).to eql('@-432')
  end
 
  it 'input 5432 apply mask РОС@@-@@-@@@ and get result РОС54-32' do
    expect(maskarad('5432', 'РОС@@-@@-@@@')).to eql('РОС54-32')
  end
 
  it 'input 42 apply mask РОС@@-@@-@@@ and get result РОС42' do
    expect(maskarad('42', 'РОС@@-@@-@@@')).to eql('РОС42')
  end
 
  it 'input 5432 apply mask @-@@-TAIL and get result 5-43-TAIL2' do
    expect(maskarad('5432', '@-@@-TAIL')).to eql('5-43-TAIL2')
  end
 
  it 'input 5432 apply mask @-@@-@@@@@@@@@-TAIL and get result 5-43-2-TAIL' do
    expect(maskarad('5432', '@-@@-@@@@@@@@@-TAIL')).to eql('5-43-2-TAIL')
  end
end