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 --- js/src/tests/non262/Date/equality-to-boolean.js | 39 +++++++++++++++++++++++++ 1 file changed, 39 insertions(+) create mode 100644 js/src/tests/non262/Date/equality-to-boolean.js (limited to 'js/src/tests/non262/Date/equality-to-boolean.js') diff --git a/js/src/tests/non262/Date/equality-to-boolean.js b/js/src/tests/non262/Date/equality-to-boolean.js new file mode 100644 index 0000000000..c60319b9d9 --- /dev/null +++ b/js/src/tests/non262/Date/equality-to-boolean.js @@ -0,0 +1,39 @@ +// Any copyright is dedicated to the Public Domain. +// http://creativecommons.org/licenses/publicdomain/ + +//----------------------------------------------------------------------------- +print("Test for correct implementation of |Date == boolean| and vice versa"); + +/************** + * BEGIN TEST * + **************/ + +Date.prototype.toString = function() { return 1; }; +Date.prototype.valueOf = function() { return 0; }; + +/* + * ES5 11.9.3 doesn't directly handle obj == boolean. Instead it translates it + * as follows: + * + * obj == boolean + * ↳ obj == ToNumber(boolean), per step 7 + * ↳ ToPrimitive(obj) == ToNumber(boolean), per step 9 + * + * ToPrimitive calls [[DefaultValue]] with no hint. For Date objects this is + * treated as if it were instead called with hint String. That calls toString, + * which returns 1, so Date objects here should compare equal to true and + * unequal to false. + */ +assertEq(new Date == true, true); +assertEq(new Date == false, false); + +/* == is symmetric. */ +assertEq(true == new Date, true); +assertEq(false == new Date, false); + +/******************************************************************************/ + +if (typeof reportCompare === "function") + reportCompare(true, true); + +print("Tests complete"); -- cgit v1.2.3