//@ runBigIntEnabled assert = { sameValue: function (input, expected, message) { if (input !== expected) throw new Error(message); } }; function testMod(x, y, z, message) { assert.sameValue(x % y, z, message); } testMod(Object(33n), 10n, 3n, "ToPrimitive: unbox object with internal slot"); let o = { [Symbol.toPrimitive]: function() { return 33n; }, valueOf: function () { throw new Error("Should never execute it"); }, toString: function () { throw new Error("Should never execute it"); } }; testMod(o, 10n, 3n, "ToPrimitive: @@toPrimitive"); o = { valueOf: function() { return 33n; }, toString: function () { throw new Error("Should never execute it"); } }; testMod(o, 10n, 3n, "ToPrimitive: valueOf");