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/TypedArray/from_string.js | 24 ++++++++++++++++++++++++ 1 file changed, 24 insertions(+) create mode 100644 js/src/tests/non262/TypedArray/from_string.js (limited to 'js/src/tests/non262/TypedArray/from_string.js') diff --git a/js/src/tests/non262/TypedArray/from_string.js b/js/src/tests/non262/TypedArray/from_string.js new file mode 100644 index 0000000000..09a2c36710 --- /dev/null +++ b/js/src/tests/non262/TypedArray/from_string.js @@ -0,0 +1,24 @@ +// %TypedArray%.from called on Array should also handle strings correctly. +var from = Int8Array.from.bind(Uint32Array); +var toCodePoint = s => s.codePointAt(0); + +// %TypedArray%.from on a string iterates over the string. +assertEqArray(from("test string", toCodePoint), + ['t', 'e', 's', 't', ' ', 's', 't', 'r', 'i', 'n', 'g'].map(toCodePoint)); + +// %TypedArray%.from on a string handles surrogate pairs correctly. +var gclef = "\uD834\uDD1E"; // U+1D11E MUSICAL SYMBOL G CLEF +assertEqArray(from(gclef, toCodePoint), [gclef].map(toCodePoint)); +assertEqArray(from(gclef + " G", toCodePoint), [gclef, " ", "G"].map(toCodePoint)); + +// %TypedArray%.from on a string calls the @@iterator method. +String.prototype[Symbol.iterator] = function* () { yield 1; yield 2; }; +assertEqArray(from("anything"), [1, 2]); + +// If the iterator method is deleted, Strings are still arraylike. +delete String.prototype[Symbol.iterator]; +assertEqArray(from("works", toCodePoint), ['w', 'o', 'r', 'k', 's'].map(toCodePoint)); +assertEqArray(from(gclef, toCodePoint), ['\uD834', '\uDD1E'].map(toCodePoint)); + +if (typeof reportCompare === "function") + reportCompare(true, true); -- cgit v1.2.3