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Diffstat (limited to '')
-rw-r--r-- | js/src/tests/non262/String/iterator_edge_cases.js | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/js/src/tests/non262/String/iterator_edge_cases.js b/js/src/tests/non262/String/iterator_edge_cases.js new file mode 100644 index 0000000000..15fe6d0fb1 --- /dev/null +++ b/js/src/tests/non262/String/iterator_edge_cases.js @@ -0,0 +1,27 @@ +// Test that we can't confuse %StringIteratorPrototype% for a +// StringIterator object. +function TestStringIteratorPrototypeConfusion() { + var iter = ""[Symbol.iterator](); + try { + iter.next.call(Object.getPrototypeOf(iter)) + throw new Error("Call did not throw"); + } catch (e) { + assertEq(e instanceof TypeError, true); + assertEq(e.message, "next method called on incompatible String Iterator"); + } +} +TestStringIteratorPrototypeConfusion(); + +// Tests that we can use %StringIteratorPrototype%.next on a +// cross-compartment iterator. +function TestStringIteratorWrappers() { + var iter = ""[Symbol.iterator](); + assertDeepEq(iter.next.call(newGlobal().eval('"x"[Symbol.iterator]()')), + { value: "x", done: false }) +} +if (typeof newGlobal === "function") { + TestStringIteratorWrappers(); +} + +if (typeof reportCompare === "function") + reportCompare(true, true); |