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-rw-r--r--js/src/tests/non262/Array/indexOf-packed-array.js40
1 files changed, 40 insertions, 0 deletions
diff --git a/js/src/tests/non262/Array/indexOf-packed-array.js b/js/src/tests/non262/Array/indexOf-packed-array.js
new file mode 100644
index 0000000000..97c2da8855
--- /dev/null
+++ b/js/src/tests/non262/Array/indexOf-packed-array.js
@@ -0,0 +1,40 @@
+function makeArray(array) {
+ var log = [];
+ Object.setPrototypeOf(array, new Proxy(Array.prototype, new Proxy({
+ has(t, pk) {
+ log.push(`Has:${String(pk)}`);
+ return Reflect.has(t, pk);
+ },
+ }, {
+ get(t, pk, r) {
+ if (pk in t)
+ return Reflect.get(t, pk, r);
+ throw new Error(`Unexpected trap "${pk}" called`);
+ }
+ })));
+ return {array, log};
+}
+
+
+var {array, log} = makeArray([1, null, 3]);
+Array.prototype.indexOf.call(array, 100, {
+ valueOf() {
+ array.length = 0;
+ return 0;
+ }
+});
+assertEqArray(log, ["Has:0", "Has:1", "Has:2"]);
+
+
+var {array, log} = makeArray([5, undefined, 7]);
+Array.prototype.lastIndexOf.call(array, 100, {
+ valueOf() {
+ array.length = 0;
+ return 2;
+ }
+});
+assertEqArray(log, ["Has:2", "Has:1", "Has:0"]);
+
+
+if (typeof reportCompare === "function")
+ reportCompare(true, true);