string-pad.js 6.63 KB
Newer Older
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155
// Copyright 2018 the V8 project authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

class MyError {};
const throwing = {toString() {throw new MyError}};
const empties = ['', {toString() {return ''}}];

{
  const s = '';

  assertThrows(_ => s.padStart(Symbol(), throwing), TypeError);
  assertEquals(s, s.padStart(NaN, throwing));
  assertEquals(s, s.padStart(-Infinity, throwing));
  assertEquals(s, s.padStart(-9, throwing));
  assertEquals(s, s.padStart(-1, throwing));
  assertEquals(s, s.padStart(-0, throwing));
  assertEquals(s, s.padStart(0, throwing));
  assertThrows(_ => s.padStart(3, throwing), MyError);
  assertThrows(_ => s.padStart(9, throwing), MyError);
  assertThrows(_ => s.padStart(2**31-1, throwing), MyError);
  assertThrows(_ => s.padStart(2**31, throwing), MyError);
  assertThrows(_ => s.padStart(2**32-1, throwing), MyError);
  assertThrows(_ => s.padStart(2**32, throwing), MyError);
  assertThrows(_ => s.padStart(2**53-1, throwing), MyError);
  assertThrows(_ => s.padStart(2**53, throwing), MyError);
  assertThrows(_ => s.padStart(Infinity, throwing), MyError);

  assertThrows(_ => s.padEnd(Symbol(), throwing), TypeError);
  assertEquals(s, s.padEnd(NaN, throwing));
  assertEquals(s, s.padEnd(-Infinity, throwing));
  assertEquals(s, s.padEnd(-9, throwing));
  assertEquals(s, s.padEnd(-1, throwing));
  assertEquals(s, s.padEnd(-0, throwing));
  assertEquals(s, s.padEnd(0, throwing));
  assertThrows(_ => s.padEnd(3, throwing), MyError);
  assertThrows(_ => s.padEnd(9, throwing), MyError);
  assertThrows(_ => s.padEnd(2**31-1, throwing), MyError);
  assertThrows(_ => s.padEnd(2**31, throwing), MyError);
  assertThrows(_ => s.padEnd(2**32-1, throwing), MyError);
  assertThrows(_ => s.padEnd(2**32, throwing), MyError);
  assertThrows(_ => s.padEnd(2**53-1, throwing), MyError);
  assertThrows(_ => s.padEnd(2**53, throwing), MyError);
  assertThrows(_ => s.padEnd(Infinity, throwing), MyError);

  for (const empty of empties) {
    assertThrows(_ => s.padStart(Symbol(), empty), TypeError);
    assertEquals(s, s.padStart(NaN, empty));
    assertEquals(s, s.padStart(-Infinity, empty));
    assertEquals(s, s.padStart(-9, empty));
    assertEquals(s, s.padStart(-1, empty));
    assertEquals(s, s.padStart(-0, empty));
    assertEquals(s, s.padStart(0, empty));
    assertEquals(s, s.padStart(3, empty));
    assertEquals(s, s.padStart(9, empty));
    assertEquals(s, s.padStart(2**31-1, empty));
    assertEquals(s, s.padStart(2**31, empty));
    assertEquals(s, s.padStart(2**32-1, empty));
    assertEquals(s, s.padStart(2**32, empty));
    assertEquals(s, s.padStart(2**53-1, empty));
    assertEquals(s, s.padStart(2**53, empty));
    assertEquals(s, s.padStart(Infinity, empty));

    assertThrows(_ => s.padEnd(Symbol(), empty), TypeError);
    assertEquals(s, s.padEnd(NaN, empty));
    assertEquals(s, s.padEnd(-Infinity, empty));
    assertEquals(s, s.padEnd(-9, empty));
    assertEquals(s, s.padEnd(-1, empty));
    assertEquals(s, s.padEnd(-0, empty));
    assertEquals(s, s.padEnd(0, empty));
    assertEquals(s, s.padEnd(3, empty));
    assertEquals(s, s.padEnd(9, empty));
    assertEquals(s, s.padEnd(2**31-1, empty));
    assertEquals(s, s.padEnd(2**31, empty));
    assertEquals(s, s.padEnd(2**32-1, empty));
    assertEquals(s, s.padEnd(2**32, empty));
    assertEquals(s, s.padEnd(2**53-1, empty));
    assertEquals(s, s.padEnd(2**53, empty));
    assertEquals(s, s.padEnd(Infinity, empty));
  }
}

{
  const s = 'hello';

  assertThrows(_ => s.padStart(Symbol(), throwing), TypeError);
  assertEquals(s, s.padStart(NaN, throwing));
  assertEquals(s, s.padStart(-Infinity, throwing));
  assertEquals(s, s.padStart(-9, throwing));
  assertEquals(s, s.padStart(-1, throwing));
  assertEquals(s, s.padStart(-0, throwing));
  assertEquals(s, s.padStart(0, throwing));
  assertEquals(s, s.padStart(3, throwing));
  assertThrows(_ => s.padStart(9, throwing), MyError);
  assertThrows(_ => s.padStart(2**31-1, throwing), MyError);
  assertThrows(_ => s.padStart(2**31, throwing), MyError);
  assertThrows(_ => s.padStart(2**32-1, throwing), MyError);
  assertThrows(_ => s.padStart(2**32, throwing), MyError);
  assertThrows(_ => s.padStart(2**53-1, throwing), MyError);
  assertThrows(_ => s.padStart(2**53, throwing), MyError);
  assertThrows(_ => s.padStart(Infinity, throwing), MyError);

  assertThrows(_ => s.padEnd(Symbol(), throwing), TypeError);
  assertEquals(s, s.padEnd(NaN, throwing));
  assertEquals(s, s.padEnd(-Infinity, throwing));
  assertEquals(s, s.padEnd(-9, throwing));
  assertEquals(s, s.padEnd(-1, throwing));
  assertEquals(s, s.padEnd(-0, throwing));
  assertEquals(s, s.padEnd(0, throwing));
  assertEquals(s, s.padEnd(3, throwing));
  assertThrows(_ => s.padEnd(9, throwing), MyError);
  assertThrows(_ => s.padEnd(2**31-1, throwing), MyError);
  assertThrows(_ => s.padEnd(2**31, throwing), MyError);
  assertThrows(_ => s.padEnd(2**32-1, throwing), MyError);
  assertThrows(_ => s.padEnd(2**32, throwing), MyError);
  assertThrows(_ => s.padEnd(2**53-1, throwing), MyError);
  assertThrows(_ => s.padEnd(2**53, throwing), MyError);
  assertThrows(_ => s.padEnd(Infinity, throwing), MyError);

  for (const empty of empties) {
    assertThrows(_ => s.padStart(Symbol(), empty), TypeError);
    assertEquals(s, s.padStart(NaN, empty));
    assertEquals(s, s.padStart(-Infinity, empty));
    assertEquals(s, s.padStart(-9, empty));
    assertEquals(s, s.padStart(-1, empty));
    assertEquals(s, s.padStart(-0, empty));
    assertEquals(s, s.padStart(0, empty));
    assertEquals(s, s.padStart(3, empty));
    assertEquals(s, s.padStart(9, empty));
    assertEquals(s, s.padStart(2**31-1, empty));
    assertEquals(s, s.padStart(2**31, empty));
    assertEquals(s, s.padStart(2**32-1, empty));
    assertEquals(s, s.padStart(2**32, empty));
    assertEquals(s, s.padStart(2**53-1, empty));
    assertEquals(s, s.padStart(2**53, empty));
    assertEquals(s, s.padStart(Infinity, empty));

    assertThrows(_ => s.padEnd(Symbol(), empty), TypeError);
    assertEquals(s, s.padEnd(NaN, empty));
    assertEquals(s, s.padEnd(-Infinity, empty));
    assertEquals(s, s.padEnd(-9, empty));
    assertEquals(s, s.padEnd(-1, empty));
    assertEquals(s, s.padEnd(-0, empty));
    assertEquals(s, s.padEnd(0, empty));
    assertEquals(s, s.padEnd(3, empty));
    assertEquals(s, s.padEnd(9, empty));
    assertEquals(s, s.padEnd(2**31-1, empty));
    assertEquals(s, s.padEnd(2**31, empty));
    assertEquals(s, s.padEnd(2**32-1, empty));
    assertEquals(s, s.padEnd(2**32, empty));
    assertEquals(s, s.padEnd(2**53-1, empty));
    assertEquals(s, s.padEnd(2**53, empty));
    assertEquals(s, s.padEnd(Infinity, empty));
  }
}