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/Map/symbols.js | 33 +++++++++++++++++++++++++++++++++ 1 file changed, 33 insertions(+) create mode 100644 js/src/tests/non262/Map/symbols.js (limited to 'js/src/tests/non262/Map/symbols.js') diff --git a/js/src/tests/non262/Map/symbols.js b/js/src/tests/non262/Map/symbols.js new file mode 100644 index 0000000000..30589a9732 --- /dev/null +++ b/js/src/tests/non262/Map/symbols.js @@ -0,0 +1,33 @@ +/* Any copyright is dedicated to the Public Domain. + * http://creativecommons.org/licenses/publicdomain/ */ + +var m = new Map; + +// Symbols can be Map keys. +var sym = Symbol(); +m.set(sym, "zero"); +assertEq(m.has(sym), true); +assertEq(m.get(sym), "zero"); +assertEq(m.has(Symbol()), false); +assertEq(m.get(Symbol()), undefined); +assertEq([...m][0][0], sym); +m.set(sym, "replaced"); +assertEq(m.get(sym), "replaced"); +m.delete(sym); +assertEq(m.has(sym), false); +assertEq(m.size, 0); + +// Symbols returned by Symbol.for() can be Map keys. +for (var word of "that that is is that that is not is not is that not it".split(' ')) { + sym = Symbol.for(word); + m.set(sym, (m.get(sym) || 0) + 1); +} +assertDeepEq([...m], [ + [Symbol.for("that"), 5], + [Symbol.for("is"), 5], + [Symbol.for("not"), 3], + [Symbol.for("it"), 1] +]); + +if (typeof reportCompare === "function") + reportCompare(0, 0); -- cgit v1.2.3