michael@0: 
michael@0: assertEq(Math.round(3.14), 3);
michael@0: assertEq(Math.round(0.5), 1);
michael@0: assertEq(Math.round(-0), -0);
michael@0: assertEq(Math.round(0), 0);
michael@0: assertEq(Math.round(-1.03), -1);
michael@0: assertEq(Math.round(2147483649), 2147483649);
michael@0: assertEq(Math.round(2147483647.5), 2147483648);
michael@0: assertEq(Math.floor(2147483647.1), 2147483647);
michael@0: 
michael@0: /* Inferred as round(double). */
michael@0: function round1(x) {
michael@0:     return Math.round(x);
michael@0: }
michael@0: assertEq(round1(10.3), 10);
michael@0: assertEq(round1(-3.14), -3);
michael@0: assertEq(round1(-3.5), -3);
michael@0: assertEq(round1(-3.6), -4);
michael@0: assertEq(round1(3.5), 4);
michael@0: assertEq(round1(3.6), 4);
michael@0: assertEq(round1(0), 0);
michael@0: assertEq(round1(-0), -0); // recompile to return double
michael@0: assertEq(round1(12345), 12345);
michael@0: assertEq(round1(654.6), 655);
michael@0: 
michael@0: /* Inferred as round(double). */
michael@0: function round2(x) {
michael@0:     return Math.round(x);
michael@0: }
michael@0: assertEq(round2(1234.5), 1235);
michael@0: assertEq(round2(NaN), NaN); // recompile to return double
michael@0: assertEq(round2(4.6), 5);
michael@0: 
michael@0: /* Inferred as round(int). */
michael@0: function round3(x) {
michael@0:     return Math.round(x);
michael@0: }
michael@0: assertEq(round3(4), 4);
michael@0: assertEq(round3(-5), -5);
michael@0: assertEq(round3(0), 0);
michael@0: