mirror of
https://github.com/denoland/deno.git
synced 2024-12-25 08:39:09 -05:00
140 lines
4.1 KiB
JavaScript
140 lines
4.1 KiB
JavaScript
// deno-fmt-ignore-file
|
|
// deno-lint-ignore-file
|
|
|
|
// Copyright Joyent and Node contributors. All rights reserved. MIT license.
|
|
// Taken from Node 18.12.1
|
|
// This file is automatically generated by `tools/node_compat/setup.ts`. Do not modify this file manually.
|
|
|
|
'use strict';
|
|
|
|
// Tests to verify doubles are correctly written
|
|
|
|
require('../common');
|
|
const assert = require('assert');
|
|
|
|
const buffer = Buffer.allocUnsafe(16);
|
|
|
|
buffer.writeDoubleBE(2.225073858507201e-308, 0);
|
|
buffer.writeDoubleLE(2.225073858507201e-308, 8);
|
|
assert.ok(buffer.equals(new Uint8Array([
|
|
0x00, 0x0f, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
|
|
0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x0f, 0x00,
|
|
])));
|
|
|
|
buffer.writeDoubleBE(1.0000000000000004, 0);
|
|
buffer.writeDoubleLE(1.0000000000000004, 8);
|
|
assert.ok(buffer.equals(new Uint8Array([
|
|
0x3f, 0xf0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02,
|
|
0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0xf0, 0x3f,
|
|
])));
|
|
|
|
buffer.writeDoubleBE(-2, 0);
|
|
buffer.writeDoubleLE(-2, 8);
|
|
assert.ok(buffer.equals(new Uint8Array([
|
|
0xc0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
|
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xc0,
|
|
])));
|
|
|
|
buffer.writeDoubleBE(1.7976931348623157e+308, 0);
|
|
buffer.writeDoubleLE(1.7976931348623157e+308, 8);
|
|
assert.ok(buffer.equals(new Uint8Array([
|
|
0x7f, 0xef, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
|
|
0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xef, 0x7f,
|
|
])));
|
|
|
|
buffer.writeDoubleBE(0 * -1, 0);
|
|
buffer.writeDoubleLE(0 * -1, 8);
|
|
assert.ok(buffer.equals(new Uint8Array([
|
|
0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
|
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x80,
|
|
])));
|
|
|
|
buffer.writeDoubleBE(Infinity, 0);
|
|
buffer.writeDoubleLE(Infinity, 8);
|
|
|
|
assert.ok(buffer.equals(new Uint8Array([
|
|
0x7F, 0xF0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
|
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xF0, 0x7F,
|
|
])));
|
|
|
|
assert.strictEqual(buffer.readDoubleBE(0), Infinity);
|
|
assert.strictEqual(buffer.readDoubleLE(8), Infinity);
|
|
|
|
buffer.writeDoubleBE(-Infinity, 0);
|
|
buffer.writeDoubleLE(-Infinity, 8);
|
|
|
|
assert.ok(buffer.equals(new Uint8Array([
|
|
0xFF, 0xF0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
|
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xF0, 0xFF,
|
|
])));
|
|
|
|
assert.strictEqual(buffer.readDoubleBE(0), -Infinity);
|
|
assert.strictEqual(buffer.readDoubleLE(8), -Infinity);
|
|
|
|
buffer.writeDoubleBE(NaN, 0);
|
|
buffer.writeDoubleLE(NaN, 8);
|
|
|
|
// JS only knows a single NaN but there exist two platform specific
|
|
// implementations. Therefore, allow both quiet and signalling NaNs.
|
|
if (buffer[1] === 0xF7) {
|
|
assert.ok(buffer.equals(new Uint8Array([
|
|
0x7F, 0xF7, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
|
|
0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xF7, 0x7F,
|
|
])));
|
|
} else {
|
|
assert.ok(buffer.equals(new Uint8Array([
|
|
0x7F, 0xF8, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
|
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xF8, 0x7F,
|
|
])));
|
|
}
|
|
|
|
assert.ok(Number.isNaN(buffer.readDoubleBE(0)));
|
|
assert.ok(Number.isNaN(buffer.readDoubleLE(8)));
|
|
|
|
// OOB in writeDouble{LE,BE} should throw.
|
|
{
|
|
const small = Buffer.allocUnsafe(1);
|
|
|
|
['writeDoubleLE', 'writeDoubleBE'].forEach((fn) => {
|
|
|
|
// Verify that default offset works fine.
|
|
buffer[fn](23, undefined);
|
|
buffer[fn](23);
|
|
|
|
assert.throws(
|
|
() => small[fn](11.11, 0),
|
|
{
|
|
code: 'ERR_BUFFER_OUT_OF_BOUNDS',
|
|
name: 'RangeError',
|
|
message: 'Attempt to access memory outside buffer bounds'
|
|
});
|
|
|
|
['', '0', null, {}, [], () => {}, true, false].forEach((off) => {
|
|
assert.throws(
|
|
() => small[fn](23, off),
|
|
{ code: 'ERR_INVALID_ARG_TYPE' });
|
|
});
|
|
|
|
[Infinity, -1, 9].forEach((offset) => {
|
|
assert.throws(
|
|
() => buffer[fn](23, offset),
|
|
{
|
|
code: 'ERR_OUT_OF_RANGE',
|
|
name: 'RangeError',
|
|
message: 'The value of "offset" is out of range. ' +
|
|
`It must be >= 0 and <= 8. Received ${offset}`
|
|
});
|
|
});
|
|
|
|
[NaN, 1.01].forEach((offset) => {
|
|
assert.throws(
|
|
() => buffer[fn](42, offset),
|
|
{
|
|
code: 'ERR_OUT_OF_RANGE',
|
|
name: 'RangeError',
|
|
message: 'The value of "offset" is out of range. ' +
|
|
`It must be an integer. Received ${offset}`
|
|
});
|
|
});
|
|
});
|
|
}
|