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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 19:33:14 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 19:33:14 +0000 |
commit | 36d22d82aa202bb199967e9512281e9a53db42c9 (patch) | |
tree | 105e8c98ddea1c1e4784a60a5a6410fa416be2de /js/src/tests/non262/Reflect/get.js | |
parent | Initial commit. (diff) | |
download | firefox-esr-36d22d82aa202bb199967e9512281e9a53db42c9.tar.xz firefox-esr-36d22d82aa202bb199967e9512281e9a53db42c9.zip |
Adding upstream version 115.7.0esr.upstream/115.7.0esrupstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r-- | js/src/tests/non262/Reflect/get.js | 72 |
1 files changed, 72 insertions, 0 deletions
diff --git a/js/src/tests/non262/Reflect/get.js b/js/src/tests/non262/Reflect/get.js new file mode 100644 index 0000000000..b38b188b03 --- /dev/null +++ b/js/src/tests/non262/Reflect/get.js @@ -0,0 +1,72 @@ +/* Any copyright is dedicated to the Public Domain. + * http://creativecommons.org/licenses/publicdomain/ */ + +// Reflect.get gets the value of a property. + +var x = {p: 1}; +assertEq(Reflect.get(x, "p"), 1); +assertEq(Reflect.get(x, "toString"), Object.prototype.toString); +assertEq(Reflect.get(x, "missing"), undefined); + + +// === Various targets + +// Array +assertEq(Reflect.get([], 700), undefined); +assertEq(Reflect.get(["zero", "one"], 1), "one"); + +// TypedArray +assertEq(Reflect.get(new Uint8Array([0, 1, 2, 3, 4, 5, 6, 7]), 7), 7); + +// Treatment of NaN +var f = new Float64Array([NaN]); +var u = new Uint32Array(f.buffer); +u[0]++; +u[1]++; +assertEq(f[0], NaN); +assertEq(Reflect.get(f, 0), NaN); + +// Proxy with no get handler +assertEq(Reflect.get(new Proxy(x, {}), "p"), 1); + +// Proxy with a get handler +var obj = new Proxy(x, { + get(t, k, r) { return k + "ful"; } +}); +assertEq(Reflect.get(obj, "mood"), "moodful"); + +// Exceptions thrown by a proxy's get handler are propagated. +assertThrowsInstanceOf(() => Reflect.get(obj, Symbol()), TypeError); + +// Ordinary object, property has a setter and no getter +obj = {set name(x) {}}; +assertEq(Reflect.get(obj, "name"), undefined); + + +// === Receiver + +// Receiver argument is passed to getters as the this-value. +obj = { get x() { return this; }}; +assertEq(Reflect.get(obj, "x", Math), Math); +assertEq(Reflect.get(Object.create(obj), "x", JSON), JSON); + +// If missing, target is passed instead. +assertEq(Reflect.get(obj, "x"), obj); + +// Receiver argument is passed to the proxy get handler. +obj = new Proxy({}, { + get(t, k, r) { + assertEq(k, "itself"); + return r; + } +}); +assertEq(Reflect.get(obj, "itself"), obj); +assertEq(Reflect.get(obj, "itself", Math), Math); +assertEq(Reflect.get(Object.create(obj), "itself", Math), Math); + +// The receiver shouldn't have to be an object +assertEq(Reflect.get(obj, "itself", 37.2), 37.2); + +// For more Reflect.get tests, see target.js and propertyKeys.js. + +reportCompare(0, 0); |