text: import test from 'ava'
  import saslprep from '../'
  
  const chr = String.fromCodePoint
  
  test('should work with liatin letters', (t) => {
    const str = 'user'
    t.is(saslprep(str), str)
  })
  
  test('should work be case preserved', (t) => {
    const str = 'USER'
    t.is(saslprep(str), str)
  })
  
  test('should work with high code points (> U+FFFF)', (t) => {
    const str = '\ud83d\ude00'
    t.is(saslprep(str, {allowUnassigned: true}), str)
  })
  
  test('should remove `mapped to nothing` characters', (t) => {
    t.is(saslprep('I\u00ADX'), 'IX')
  })
  
  test('should replace `Non-ASCII space characters` with space', (t) => {
    t.is(saslprep('a\u00A0b'), 'a\u0020b')
  })
  
  test('should normalize as NFKC', (t) => {
    t.is(saslprep('\u00AA'), 'a')
    t.is(saslprep('\u2168'), 'IX')
  })
  
  test('should throws when prohibited characters', (t) => {
    // C.2.1 ASCII control characters
    t.throws(() => saslprep('a\u007Fb'))
  
    // C.2.2 Non-ASCII control characters
    t.throws(() => saslprep('a\u06DDb'))
  
    // C.3 Private use
    t.throws(() => saslprep('a\uE000b'))
  
    // C.4 Non-character code points
    t.throws(() => saslprep(`a${chr(0x1FFFE)}b`))
  
    // C.5 Surrogate codes
    t.throws(() => saslprep('a\uD800b'))
  
    // C.6 Inappropriate for plain text
    t.throws(() => saslprep('a\uFFF9b'))
  
    // C.7 Inappropriate for canonical representation
    t.throws(() => saslprep('a\u2FF0b'))
  
    // C.8 Change display properties or are deprecated
    t.throws(() => saslprep('a\u200Eb'))
  
    // C.9 Tagging characters
    t.throws(() => saslprep(`a${chr(0xE0001)}b`))
  })
  
  test('should not containt RandALCat and LCat bidi', (t) => {
    t.throws(() => saslprep('a\u06DD\u00AAb'))
  })
  
  test('RandALCat should be first and last', (t) => {
    t.notThrows(() => saslprep('\u0627\u0031\u0628'))
    t.throws(() => saslprep('\u0627\u0031'))
  })
  
  test('should handle unassigned code points', (t) => {
    t.throws(() => saslprep('a\u0487'))
    t.notThrows(() => saslprep('a\u0487', {allowUnassigned: true}))
  })
  