From 36d22d82aa202bb199967e9512281e9a53db42c9 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 7 Apr 2024 21:33:14 +0200 Subject: Adding upstream version 115.7.0esr. Signed-off-by: Daniel Baumann --- .../Array/length-truncate-nonconfigurable.js | 48 ++++++++++++++++++++++ 1 file changed, 48 insertions(+) create mode 100644 js/src/tests/non262/Array/length-truncate-nonconfigurable.js (limited to 'js/src/tests/non262/Array/length-truncate-nonconfigurable.js') diff --git a/js/src/tests/non262/Array/length-truncate-nonconfigurable.js b/js/src/tests/non262/Array/length-truncate-nonconfigurable.js new file mode 100644 index 0000000000..e9a66fe0ac --- /dev/null +++ b/js/src/tests/non262/Array/length-truncate-nonconfigurable.js @@ -0,0 +1,48 @@ +/* + * Any copyright is dedicated to the Public Domain. + * http://creativecommons.org/licenses/publicdomain/ + * Contributor: + * Jeff Walden + */ + +//----------------------------------------------------------------------------- +var BUGNUMBER = 858381; +var summary = + "Array length redefinition behavior with non-configurable elements"; + +print(BUGNUMBER + ": " + summary); + +/************** + * BEGIN TEST * + **************/ + +var arr = [0, 1, 2]; +Object.defineProperty(arr, 1, { configurable: false }); + +try +{ + Object.defineProperty(arr, "length", { value: 0, writable: false }); +} +catch (e) +{ + assertEq(e instanceof TypeError, true, + "must throw TypeError when array truncation would have to remove " + + "non-configurable elements"); +} + +assertEq(arr.length, 2, "length is highest remaining index plus one"); + +var desc = Object.getOwnPropertyDescriptor(arr, "length"); +assertEq(desc !== undefined, true); + +assertEq(desc.value, 2); +assertEq(desc.writable, false); +assertEq(desc.enumerable, false); +assertEq(desc.configurable, false); + +/******************************************************************************/ + +if (typeof reportCompare === "function") + reportCompare(true, true); + +print("Tests complete"); -- cgit v1.2.3