tests/stress/math-sqrt-basics.js

   1 // Basic cases of Math.sqrt().
   2 function sqrtOnInteger(radicand) {
   3     return Math.sqrt(radicand);
   4 }
   5 noInline(sqrtOnInteger);
   6
   7 function testSquareRoot16() {
   8     for (var i = 0; i < 10000; ++i) {
   9         var result = sqrtOnInteger(16);
  10         if (result !== 4)
  11             throw "sqrtOnInteger(16) = " + result + ", expected 4";
  12     }
  13 }
  14 testSquareRoot16();
  15
  16 var sqrtOnIntegerNegativeNumber = sqrtOnDouble(-4);
  17 if (!isNaN(sqrtOnIntegerNegativeNumber))
  18     throw "sqrtOnDouble(-4) = " + sqrtOnIntegerNegativeNumber + ", expected NaN";
  19
  20 var sqrtOnIntegerFallback = sqrtOnInteger(Math.PI);
  21 if (sqrtOnIntegerFallback != 1.7724538509055159)
  22     throw "sqrtOnInteger(Math.PI) = " + sqrtOnIntegerFallback + ", expected 1.7724538509055159";
  23
  24
  25 function sqrtOnDouble(radicand) {
  26     return Math.sqrt(radicand);
  27 }
  28 noInline(sqrtOnDouble);
  29
  30 function testSquareRootDouble() {
  31     for (var i = 0; i < 10000; ++i) {
  32         var result = sqrtOnInteger(Math.LN2);
  33         if (result !== 0.8325546111576977)
  34             throw "sqrtOnInteger(Math.LN2) = " + result + ", expected 0.8325546111576977";
  35     }
  36 }
  37 testSquareRootDouble();
  38
  39 var sqrtOnDoubleNegativeNumber = sqrtOnDouble(-Math.PI);
  40 if (!isNaN(sqrtOnDoubleNegativeNumber))
  41     throw "sqrtOnDouble(-Math.PI) = " + sqrtOnDoubleNegativeNumber + ", expected NaN";
  42
  43 var sqrtOnDoubleFallback = sqrtOnDouble(4);
  44 if (sqrtOnDoubleFallback !== 2)
  45     throw "sqrtOnDouble(4) = " + sqrtOnDoubleFallback + ", expected 2";