bigint-and-number.js

function assertSameValue(result, expected, resultStr) {
  if (result === expected) return;
  $ERROR("Expected (" + resultStr + ") to be " + expected + " but it was " + result);
}

function compare(a, aStr, b, bStr, cmp) {
  assertSameValue(a <  b, cmp <  0, aStr + " < "  + bStr);
  assertSameValue(a <= b, cmp <= 0, aStr + " <= " + bStr);
  assertSameValue(a >  b, cmp >  0, aStr + " > "  + bStr);
  assertSameValue(a >= b, cmp >= 0, aStr + " >= " + bStr);
  assertSameValue(b <  a, 0 <  cmp, aStr + " < "  + bStr);
  assertSameValue(b <= a, 0 <= cmp, aStr + " <= " + bStr);
  assertSameValue(b >  a, 0 >  cmp, aStr + " > "  + bStr);
  assertSameValue(b >= a, 0 >= cmp, aStr + " >= " + bStr);
}

compare(1n, "1n", 0, "0", 1);
compare(1n, "1n", 0.999999999999, "0.999999999999", 1);
compare(1, "1", 0n, "0n", 1);
compare(0.000000000001, "0.000000000001", 0n, "0n", 1);
compare(1n, "1n", 1, "1", 0);
compare(1, "1", 1n, "1n", 0);
compare(0n, "0n", 1, "1", -1);
compare(0, "0", 1n, "1n", -1);
compare(0, "0", 0n, "0n", 0);
compare(0n, "0n", 0, "0", 0);
compare(1n, "1n", Number.MAX_VALUE, "Number.MAX_VALUE", -1);
compare(Number.MIN_VALUE, "Number.MIN_VALUE", 0n, "0n", -1);
compare(-10n, "-10n", Number.MIN_VALUE, "Number.MIN_VALUE", 1);
compare(Number.MAX_VALUE, "Number.MAX_VALUE", 10000000000n, "10000000000n", 1);

output

uncaught exception: Test262Error: Expected (Number.MIN_VALUE < 0n) to be true but it was false