1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/js/src/jit-test/tests/collections/Set-iterator-remove-1.js Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,26 @@
1.4 +// A set iterator can cope with removing the current entry.
1.5 +
1.6 +function test(letters, toRemove) {
1.7 + var set = Set(letters);
1.8 + toRemove = Set(toRemove);
1.9 +
1.10 + var leftovers = [x for (x of set) if (!toRemove.has(x))].join("");
1.11 +
1.12 + var log = "";
1.13 + for (let x of set) {
1.14 + log += x;
1.15 + if (toRemove.has(x))
1.16 + set.delete(x);
1.17 + }
1.18 + assertEq(log, letters);
1.19 +
1.20 + var remaining = [x for (x of set)].join("");
1.21 + assertEq(remaining, leftovers);
1.22 +}
1.23 +
1.24 +test('a', 'a'); // removing the only entry
1.25 +test('abc', 'a'); // removing the first entry
1.26 +test('abc', 'b'); // removing a middle entry
1.27 +test('abc', 'c'); // removing the last entry
1.28 +test('abc', 'abc') // removing all entries
1.29 +
