describe 'Inochi.calc_program_name' do
  it 'converts input into lower-case' do
    c('foo').must_equal('foo')
    c('foO').must_equal('foo')
    c('Foo').must_equal('foo')
    c('FoO').must_equal('foo')
  end

  it 'converts camel case into snake case' do
    c('FooBar').must_equal('foo_bar')
    c('AnXMLParser').must_equal('an_xml_parser')
    c('fOo').must_equal('f_oo')
    c('FOo').must_equal('f_oo')
  end

  private

  def c *args
    Inochi.calc_program_name(*args)
  end
end

describe 'Inochi.calc_project_symbol' do
  it 'capitalizes first letter like a ruby constant' do
    c('foo').must_equal('Foo')
  end

  it 'preserves exisitng capitalization' do
    c('FoO').must_equal('FoO')
    c('fooBaR').must_equal('FooBaR')
  end

  it 'converts non-word characters into underscores' do
    c('a!b#c').must_equal('A_b_c')
  end

  it 'squeezes mulitple underscores' do
    c('foo!!bar$$qux').must_equal('Foo_bar_qux')
  end

  it 'ignores surrounding whitespace' do
    c('  a  ').must_equal('A')
  end

  it 'ignores surrounding underscores' do
    c('_a').must_equal('A')
    c('a_').must_equal('A')
    c('_a_').must_equal('A')
    c('__a__').must_equal('A')
  end

  it 'ignores surrounding non-word characters' do
    c('!a').must_equal('A')
    c('a!').must_equal('A')
    c('!a!').must_equal('A')
    c('!!a!!').must_equal('A')
    c('!@a#$').must_equal('A')
  end

  private

  def c *args
    Inochi.calc_project_symbol(*args).to_s
  end
end

describe 'Inochi.camel_to_snake_case' do
  it 'supports empty input' do
    c('').must_equal('')
  end

  it 'supports normal camel case' do
    c('fooBar').must_equal('foo_Bar')
    c('FooBar').must_equal('Foo_Bar')
    c('Foobar').must_equal('Foobar')
  end

  it 'supports nested abbreviations' do
    c('AnXMLParser').must_equal('An_XML_Parser')
    c('ANXMLParser').must_equal('ANXML_Parser')
    c('AnXmLPaRsEr').must_equal('An_Xm_L_Pa_Rs_Er')
  end

  it 'preserves non-word characters' do
    c(' a!!b#c').must_equal(' a!!b#c')
  end

  it 'preserves exsiting underscores' do
    c('foo_bar').must_equal('foo_bar')
    c('foo_Bar').must_equal('foo_Bar')
    c('Foo_Bar').must_equal('Foo_Bar')
    c('Foo_bar').must_equal('Foo_bar')

    c('Foo___b_a__r').must_equal('Foo___b_a__r')
    c('_').must_equal('_')
    c('_a').must_equal('_a')
    c('a_').must_equal('a_')
    c('_a_').must_equal('_a_')
  end

  private

  def c *args
    Inochi.camel_to_snake_case(*args)
  end
end