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cf949293ba
Do not convert typed arrays to `Buffer` for deepEqual since their values may not be accurately represented by 8-bit ints. Instead perform binary comparison of underlying `ArrayBuffer`s, but only when the array types match. Never apply any kind of optimization for floating-point typed arrays since bit pattern equality is not the right kind of check for them. PR-URL: https://github.com/nodejs/node/pull/5910 Reviewed-By: Benjamin Gruenbaum <benjamingr@gmail.com> Fixes: https://github.com/nodejs/node/issues/5907
54 lines
1.8 KiB
JavaScript
54 lines
1.8 KiB
JavaScript
'use strict';
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require('../common');
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const assert = require('assert');
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const a = require('assert');
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function makeBlock(f) {
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var args = Array.prototype.slice.call(arguments, 1);
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return function() {
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return f.apply(this, args);
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};
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}
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const equalArrayPairs = [
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[new Uint8Array(1e5), new Uint8Array(1e5)],
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[new Uint16Array(1e5), new Uint16Array(1e5)],
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[new Uint32Array(1e5), new Uint32Array(1e5)],
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[new Uint8ClampedArray(1e5), new Uint8ClampedArray(1e5)],
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[new Int8Array(1e5), new Int8Array(1e5)],
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[new Int16Array(1e5), new Int16Array(1e5)],
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[new Int32Array(1e5), new Int32Array(1e5)],
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[new Float32Array(1e5), new Float32Array(1e5)],
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[new Float64Array(1e5), new Float64Array(1e5)],
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[new Int16Array(256), new Uint16Array(256)],
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[new Int16Array([256]), new Uint16Array([256])],
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[new Float32Array([+0.0]), new Float32Array([-0.0])],
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[new Float64Array([+0.0]), new Float32Array([-0.0])],
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[new Float64Array([+0.0]), new Float64Array([-0.0])]
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];
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const notEqualArrayPairs = [
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[new Uint8Array(2), new Uint8Array(3)],
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[new Uint8Array([1, 2, 3]), new Uint8Array([4, 5, 6])],
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[new Uint8ClampedArray([300, 2, 3]), new Uint8Array([300, 2, 3])],
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[new Uint16Array([2]), new Uint16Array([3])],
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[new Uint16Array([0]), new Uint16Array([256])],
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[new Int16Array([0]), new Uint16Array([256])],
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[new Int16Array([-256]), new Uint16Array([0xff00])], // same bits
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[new Int32Array([-256]), new Uint32Array([0xffffff00])], // ditto
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[new Float32Array([0.1]), new Float32Array([0.0])],
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[new Float64Array([0.1]), new Float64Array([0.0])]
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];
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equalArrayPairs.forEach((arrayPair) => {
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assert.deepEqual(arrayPair[0], arrayPair[1]);
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});
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notEqualArrayPairs.forEach((arrayPair) => {
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assert.throws(
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makeBlock(a.deepEqual, arrayPair[0], arrayPair[1]),
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a.AssertionError
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);
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});
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