1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/js/src/tests/ecma_6/Math/log1p-exact.js Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,29 @@
1.4 +// Properties of Math.log1p that are guaranteed by the spec.
1.5 +
1.6 +// If x is NaN, the result is NaN.
1.7 +assertEq(Math.log1p(NaN), NaN);
1.8 +
1.9 +// If x is less than -1, the result is NaN.
1.10 +assertEq(Math.log1p(-1 - 1e-10), NaN);
1.11 +assertEq(Math.log1p(-1 - 1e-5), NaN);
1.12 +assertEq(Math.log1p(-1 - 1e-1), NaN);
1.13 +assertEq(Math.log1p(-ONE_PLUS_EPSILON), NaN);
1.14 +
1.15 +for (var i = -2; i > -20; i--)
1.16 + assertEq(Math.log1p(i), NaN);
1.17 +
1.18 +// If x is -1, the result is -∞.
1.19 +assertEq(Math.log1p(-1), -Infinity);
1.20 +
1.21 +// If x is +0, the result is +0.
1.22 +assertEq(Math.log1p(+0), +0);
1.23 +
1.24 +// If x is −0, the result is −0.
1.25 +assertEq(Math.log1p(-0), -0);
1.26 +
1.27 +// If x is +∞, the result is +∞.
1.28 +assertEq(Math.log1p(Infinity), Infinity);
1.29 +
1.30 +
1.31 +reportCompare(0, 0, "ok");
1.32 +
