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var hits = 0;
var p = { toString() { hits++; return "prop" } };
var obj = { foo: 1 };
var ops = [["obj[p]++", 2],
["++obj[p]", 2],
["--obj[p]", 0],
["obj[p]--", 0],
["obj[p] += 2", 3],
["obj[p] -= 2", -1],
["obj[p] *= 2", 2],
["obj[p] /= 2", 0.5],
["obj[p] %= 2", 1],
["obj[p] >>>= 2", 0],
["obj[p] >>= 2", 0],
["obj[p] <<= 2", 4],
["obj[p] |= 2", 3],
["obj[p] ^= 2", 3],
["obj[p] &= 2", 0]];
var testHits = 0;
for (let op of ops) {
// Seed the value for each test.
obj.prop = 1;
// Do the operation.
eval(op[0]);
assertEq(obj.prop, op[1]);
// We should always call toString once, for each operation.
testHits++;
assertEq(hits, testHits);
}
if (typeof reportCompare === 'function')
reportCompare(0,0,"OK");
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