mirror of https://github.com/tc39/test262.git
120 lines
2.9 KiB
JavaScript
120 lines
2.9 KiB
JavaScript
// Copyright (C) 2017 Mozilla Corporation. All rights reserved.
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// This code is governed by the BSD license found in the LICENSE file.
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/*---
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description: |
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Collection of functions used to assert the correctness of SharedArrayBuffer objects.
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---*/
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/**
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* Calls the provided function for a each bad index that should throw a
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* RangeError when passed to an Atomics method on a SAB-backed view where
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* index 125 is out of range.
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*
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* @param f - the function to call for each bad index.
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*/
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function testWithAtomicsOutOfBoundsIndices(f) {
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var bad_indices = [
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(view) => -1,
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(view) => view.length,
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(view) => view.length*2,
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(view) => Number.POSITIVE_INFINITY,
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(view) => Number.NEGATIVE_INFINITY,
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(view) => ({ valueOf: () => 125 }),
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(view) => ({ toString: () => '125', valueOf: false }) // non-callable valueOf triggers invocation of toString
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];
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for (let IdxGen of bad_indices) {
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try {
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f(IdxGen);
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} catch (e) {
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e.message += " (Testing with index gen " + IdxGen + ".)";
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throw e;
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}
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}
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}
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/**
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* Calls the provided function for each good index that should not throw when
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* passed to an Atomics method on a SAB-backed view.
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*
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* The view must have length greater than zero.
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*
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* @param f - the function to call for each good index.
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*/
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function testWithAtomicsInBoundsIndices(f) {
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// Most of these are eventually coerced to +0 by ToIndex.
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var good_indices = [
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(view) => 0/-1,
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(view) => '-0',
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(view) => undefined,
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(view) => NaN,
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(view) => 0.5,
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(view) => '0.5',
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(view) => -0.9,
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(view) => ({ password: "qumquat" }),
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(view) => view.length - 1,
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(view) => ({ valueOf: () => 0 }),
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(view) => ({ toString: () => '0', valueOf: false }) // non-callable valueOf triggers invocation of toString
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];
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for (let IdxGen of good_indices) {
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try {
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f(IdxGen);
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} catch (e) {
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e.message += " (Testing with index gen " + IdxGen + ".)";
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throw e;
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}
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}
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}
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/**
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* Calls the provided function for each value that should throw a TypeError
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* when passed to an Atomics method as a view.
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*
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* @param f - the function to call for each non-view value.
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*/
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function testWithAtomicsNonViewValues(f) {
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var values = [
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null,
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undefined,
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true,
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false,
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new Boolean(true),
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10,
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3.14,
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new Number(4),
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"Hi there",
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new Date,
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/a*utomaton/g,
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{ password: "qumquat" },
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new DataView(new ArrayBuffer(10)),
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new ArrayBuffer(128),
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new SharedArrayBuffer(128),
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new Error("Ouch"),
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[1,1,2,3,5,8],
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((x) => -x),
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new Map(),
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new Set(),
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new WeakMap(),
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new WeakSet(),
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Symbol("halleluja"),
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// TODO: Proxy?
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Object,
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Int32Array,
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Date,
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Math,
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Atomics
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];
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for (let nonView of values) {
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try {
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f(nonView);
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} catch (e) {
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e.message += " (Testing with non-view value " + nonView + ".)";
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throw e;
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}
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}
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}
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