node/test/parallel/test-assert-typedarray-deepequal.js
Ruben Bridgewater 7493db21b6
assert: adjust loose assertions
This changes the loose deep equal comparison by using the same logic
as done in the strict deep equal comparison besides comparing
primitives loosely, not comparing symbol properties and not comparing
the prototype.

`assert.deepEqual` is still commenly used and this is likely the
biggest pitfall.

Most changes are only minor and won't have a big impact besides
likely fixing user expectations.

PR-URL: https://github.com/nodejs/node/pull/25008
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Daniel Bevenius <daniel.bevenius@gmail.com>
2019-01-27 03:34:25 +01:00

92 lines
3.3 KiB
JavaScript

'use strict';
require('../common');
const assert = require('assert');
function makeBlock(f) {
const args = Array.prototype.slice.call(arguments, 1);
return function() {
return f.apply(this, args);
};
}
const equalArrayPairs = [
[new Uint8Array(1e5), new Uint8Array(1e5)],
[new Uint16Array(1e5), new Uint16Array(1e5)],
[new Uint32Array(1e5), new Uint32Array(1e5)],
[new Uint8ClampedArray(1e5), new Uint8ClampedArray(1e5)],
[new Int8Array(1e5), new Int8Array(1e5)],
[new Int16Array(1e5), new Int16Array(1e5)],
[new Int32Array(1e5), new Int32Array(1e5)],
[new Float32Array(1e5), new Float32Array(1e5)],
[new Float64Array(1e5), new Float64Array(1e5)],
[new Float32Array([+0.0]), new Float32Array([+0.0])],
[new Uint8Array([1, 2, 3, 4]).subarray(1), new Uint8Array([2, 3, 4])],
[new Uint16Array([1, 2, 3, 4]).subarray(1), new Uint16Array([2, 3, 4])],
[new Uint32Array([1, 2, 3, 4]).subarray(1, 3), new Uint32Array([2, 3])],
[new ArrayBuffer(3), new ArrayBuffer(3)],
[new SharedArrayBuffer(3), new SharedArrayBuffer(3)]
];
const looseEqualArrayPairs = [
[new Float32Array([+0.0]), new Float32Array([-0.0])],
[new Float64Array([+0.0]), new Float64Array([-0.0])]
];
const notEqualArrayPairs = [
[new ArrayBuffer(3), new SharedArrayBuffer(3)],
[new Int16Array(256), new Uint16Array(256)],
[new Int16Array([256]), new Uint16Array([256])],
[new Float64Array([+0.0]), new Float32Array([-0.0])],
[new Uint8Array(2), new Uint8Array(3)],
[new Uint8Array([1, 2, 3]), new Uint8Array([4, 5, 6])],
[new Uint8ClampedArray([300, 2, 3]), new Uint8Array([300, 2, 3])],
[new Uint16Array([2]), new Uint16Array([3])],
[new Uint16Array([0]), new Uint16Array([256])],
[new Int16Array([0]), new Uint16Array([256])],
[new Int16Array([-256]), new Uint16Array([0xff00])], // same bits
[new Int32Array([-256]), new Uint32Array([0xffffff00])], // ditto
[new Float32Array([0.1]), new Float32Array([0.0])],
[new Float32Array([0.1]), new Float32Array([0.1, 0.2])],
[new Float64Array([0.1]), new Float64Array([0.0])],
[new Uint8Array([1, 2, 3]).buffer, new Uint8Array([4, 5, 6]).buffer],
[
new Uint8Array(new SharedArrayBuffer(3)).fill(1).buffer,
new Uint8Array(new SharedArrayBuffer(3)).fill(2).buffer
],
[new ArrayBuffer(2), new ArrayBuffer(3)],
[new SharedArrayBuffer(2), new SharedArrayBuffer(3)],
[new ArrayBuffer(2), new SharedArrayBuffer(3)],
[
new Uint8Array(new ArrayBuffer(3)).fill(1).buffer,
new Uint8Array(new SharedArrayBuffer(3)).fill(2).buffer
]
];
equalArrayPairs.forEach((arrayPair) => {
// eslint-disable-next-line no-restricted-properties
assert.deepEqual(arrayPair[0], arrayPair[1]);
assert.deepStrictEqual(arrayPair[0], arrayPair[1]);
});
looseEqualArrayPairs.forEach((arrayPair) => {
// eslint-disable-next-line no-restricted-properties
assert.deepEqual(arrayPair[0], arrayPair[1]);
assert.throws(
makeBlock(assert.deepStrictEqual, arrayPair[0], arrayPair[1]),
assert.AssertionError
);
});
notEqualArrayPairs.forEach((arrayPair) => {
assert.throws(
// eslint-disable-next-line no-restricted-properties
makeBlock(assert.deepEqual, arrayPair[0], arrayPair[1]),
assert.AssertionError
);
assert.throws(
makeBlock(assert.deepStrictEqual, arrayPair[0], arrayPair[1]),
assert.AssertionError
);
});