diff options
Diffstat (limited to 'js/src/jit-test/tests/collections/Set-iterator-remove-5.js')
-rw-r--r-- | js/src/jit-test/tests/collections/Set-iterator-remove-5.js | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/collections/Set-iterator-remove-5.js b/js/src/jit-test/tests/collections/Set-iterator-remove-5.js new file mode 100644 index 0000000000..378accc3ac --- /dev/null +++ b/js/src/jit-test/tests/collections/Set-iterator-remove-5.js @@ -0,0 +1,22 @@ +// Removing a Set entry already visited by an iterator does not cause any +// entries to be skipped. + +var str = 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'; +var set = new Set(str); + +var log = ''; +var i = 0; +for (var x of set) { + log += x; + if (i++ % 5 === 0) { + // Delete all entries preceding this one. + for (let y of set) { + if (y === x) + break; + set.delete(y); + } + } +} +assertEq(log, str); +assertEq(set.size, 1); // Elements 0 to 24 are removed, leaving only 25 (Z). +assertEq(set.has('Z'), true); |