1 files changed, 53 insertions, 0 deletions
diff --git a/js/src/tests/non262/object/values-entries-typedarray.js b/js/src/tests/non262/object/values-entries-typedarray.js
new file mode 100644
index 0000000000..b0ac5a51bb
--- /dev/null
+++ b/js/src/tests/non262/object/values-entries-typedarray.js
@@ -0,0 +1,53 @@
+function assertSameEntries(actual, expected) {
+    assertEq(actual.length, expected.length);
+    for (let i = 0; i < expected.length; ++i)
+        assertEqArray(actual[i], expected[i]);
+}
+
+function throwsTypeError(fn) {
+    try {
+        fn();
+    } catch (e) {
+        assertEq(e instanceof TypeError, true);
+        return true;
+    }
+    return false;
+}
+
+// Non-standard: Accessing elements of detached array buffers should throw, but
+// this is currently not implemented.
+const ACCESS_ON_DETACHED_ARRAY_BUFFER_THROWS = (() => {
+    let ta = new Int32Array(10);
+    detachArrayBuffer(ta.buffer);
+    let throws = throwsTypeError(() => ta[0]);
+    // Ensure [[Get]] and [[GetOwnProperty]] return consistent results.
+    assertEq(throwsTypeError(() => Object.getOwnPropertyDescriptor(ta, 0)), throws);
+    return throws;
+})();
+
+function maybeThrowOnDetached(fn, returnValue) {
+    if (ACCESS_ON_DETACHED_ARRAY_BUFFER_THROWS) {
+        assertThrowsInstanceOf(fn, TypeError);
+        return returnValue;
+    }
+    return fn();
+}
+
+// Ensure Object.keys/values/entries work correctly on typed arrays.
+for (let len of [0, 1, 10]) {
+    let array = new Array(len).fill(1);
+    let ta = new Int32Array(array);
+
+    assertEqArray(Object.keys(ta), Object.keys(array));
+    assertEqArray(Object.values(ta), Object.values(array));
+    assertSameEntries(Object.entries(ta), Object.entries(array));
+
+    detachArrayBuffer(ta.buffer);
+
+    assertEqArray(maybeThrowOnDetached(() => Object.keys(ta), []), []);
+    assertEqArray(maybeThrowOnDetached(() => Object.values(ta), []), []);
+    assertSameEntries(maybeThrowOnDetached(() => Object.entries(ta), []), []);
+}
+
+if (typeof reportCompare === "function")
+    reportCompare(true, true);