test/mjsunit/compare-character.js

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// Test the optimized implementation of comparison with single-character
// strings.

var a = ['', String.fromCharCode(0), ' ', 'e', 'erik', 'f', 'foo', 'g', 'goo',
         -1, 0, 1, 1.2, -7.9, true, false, 'foo', '0', 'NaN' ];
for (var i in a) {
  var x = a[i];
  var f = 'f';

  assertEquals(x == f, x == 'f', "==" + x);
  assertEquals(x === f, x === 'f', "===" + x);
  assertEquals(x < f, x < 'f', "<" + x);
  assertEquals(x <= f, x <= 'f', "<=" + x);
  assertEquals(x > f, x > 'f', ">" + x);
  assertEquals(x >= f, x >= 'f', ">=" + x);
  assertEquals(f == x, 'f' == x, "==r" + x);
  assertEquals(f === x, 'f' === x, "===r" + x);
  assertEquals(f > x, 'f' > x, "<r" + x);
  assertEquals(f >= x, 'f' >= x, "<=r" + x);
  assertEquals(f < x, 'f' < x, ">r" + x);
  assertEquals(f <= x, 'f' <= x, ">=r" + x);
}