%PDF-
%PDF-
Mini Shell
Mini Shell
// Flags: --expose-internals
'use strict';
const common = require('../common');
const assert = require('assert');
const { codes: { ERR_OUT_OF_RANGE } } = require('internal/errors');
const { internalBinding } = require('internal/test/binding');
const SIZE = 28;
const buf1 = Buffer.allocUnsafe(SIZE);
const buf2 = Buffer.allocUnsafe(SIZE);
// Default encoding
testBufs('abc');
testBufs('\u0222aa');
testBufs('a\u0234b\u0235c\u0236');
testBufs('abc', 4);
testBufs('abc', 5);
testBufs('abc', SIZE);
testBufs('\u0222aa', 2);
testBufs('\u0222aa', 8);
testBufs('a\u0234b\u0235c\u0236', 4);
testBufs('a\u0234b\u0235c\u0236', 12);
testBufs('abc', 4, 1);
testBufs('abc', 5, 1);
testBufs('\u0222aa', 8, 1);
testBufs('a\u0234b\u0235c\u0236', 4, 1);
testBufs('a\u0234b\u0235c\u0236', 12, 1);
// UTF8
testBufs('abc', 'utf8');
testBufs('\u0222aa', 'utf8');
testBufs('a\u0234b\u0235c\u0236', 'utf8');
testBufs('abc', 4, 'utf8');
testBufs('abc', 5, 'utf8');
testBufs('abc', SIZE, 'utf8');
testBufs('\u0222aa', 2, 'utf8');
testBufs('\u0222aa', 8, 'utf8');
testBufs('a\u0234b\u0235c\u0236', 4, 'utf8');
testBufs('a\u0234b\u0235c\u0236', 12, 'utf8');
testBufs('abc', 4, 1, 'utf8');
testBufs('abc', 5, 1, 'utf8');
testBufs('\u0222aa', 8, 1, 'utf8');
testBufs('a\u0234b\u0235c\u0236', 4, 1, 'utf8');
testBufs('a\u0234b\u0235c\u0236', 12, 1, 'utf8');
assert.strictEqual(Buffer.allocUnsafe(1).fill(0).fill('\u0222')[0], 0xc8);
// BINARY
testBufs('abc', 'binary');
testBufs('\u0222aa', 'binary');
testBufs('a\u0234b\u0235c\u0236', 'binary');
testBufs('abc', 4, 'binary');
testBufs('abc', 5, 'binary');
testBufs('abc', SIZE, 'binary');
testBufs('\u0222aa', 2, 'binary');
testBufs('\u0222aa', 8, 'binary');
testBufs('a\u0234b\u0235c\u0236', 4, 'binary');
testBufs('a\u0234b\u0235c\u0236', 12, 'binary');
testBufs('abc', 4, 1, 'binary');
testBufs('abc', 5, 1, 'binary');
testBufs('\u0222aa', 8, 1, 'binary');
testBufs('a\u0234b\u0235c\u0236', 4, 1, 'binary');
testBufs('a\u0234b\u0235c\u0236', 12, 1, 'binary');
// LATIN1
testBufs('abc', 'latin1');
testBufs('\u0222aa', 'latin1');
testBufs('a\u0234b\u0235c\u0236', 'latin1');
testBufs('abc', 4, 'latin1');
testBufs('abc', 5, 'latin1');
testBufs('abc', SIZE, 'latin1');
testBufs('\u0222aa', 2, 'latin1');
testBufs('\u0222aa', 8, 'latin1');
testBufs('a\u0234b\u0235c\u0236', 4, 'latin1');
testBufs('a\u0234b\u0235c\u0236', 12, 'latin1');
testBufs('abc', 4, 1, 'latin1');
testBufs('abc', 5, 1, 'latin1');
testBufs('\u0222aa', 8, 1, 'latin1');
testBufs('a\u0234b\u0235c\u0236', 4, 1, 'latin1');
testBufs('a\u0234b\u0235c\u0236', 12, 1, 'latin1');
// UCS2
testBufs('abc', 'ucs2');
testBufs('\u0222aa', 'ucs2');
testBufs('a\u0234b\u0235c\u0236', 'ucs2');
testBufs('abc', 4, 'ucs2');
testBufs('abc', SIZE, 'ucs2');
testBufs('\u0222aa', 2, 'ucs2');
testBufs('\u0222aa', 8, 'ucs2');
testBufs('a\u0234b\u0235c\u0236', 4, 'ucs2');
testBufs('a\u0234b\u0235c\u0236', 12, 'ucs2');
testBufs('abc', 4, 1, 'ucs2');
testBufs('abc', 5, 1, 'ucs2');
testBufs('\u0222aa', 8, 1, 'ucs2');
testBufs('a\u0234b\u0235c\u0236', 4, 1, 'ucs2');
testBufs('a\u0234b\u0235c\u0236', 12, 1, 'ucs2');
assert.strictEqual(Buffer.allocUnsafe(1).fill('\u0222', 'ucs2')[0], 0x22);
// HEX
testBufs('616263', 'hex');
testBufs('c8a26161', 'hex');
testBufs('61c8b462c8b563c8b6', 'hex');
testBufs('616263', 4, 'hex');
testBufs('616263', 5, 'hex');
testBufs('616263', SIZE, 'hex');
testBufs('c8a26161', 2, 'hex');
testBufs('c8a26161', 8, 'hex');
testBufs('61c8b462c8b563c8b6', 4, 'hex');
testBufs('61c8b462c8b563c8b6', 12, 'hex');
testBufs('616263', 4, 1, 'hex');
testBufs('616263', 5, 1, 'hex');
testBufs('c8a26161', 8, 1, 'hex');
testBufs('61c8b462c8b563c8b6', 4, 1, 'hex');
testBufs('61c8b462c8b563c8b6', 12, 1, 'hex');
assert.throws(() => {
const buf = Buffer.allocUnsafe(SIZE);
buf.fill('yKJh', 'hex');
}, {
code: 'ERR_INVALID_ARG_VALUE',
name: 'TypeError'
});
assert.throws(() => {
const buf = Buffer.allocUnsafe(SIZE);
buf.fill('\u0222', 'hex');
}, {
code: 'ERR_INVALID_ARG_VALUE',
name: 'TypeError'
});
// BASE64
testBufs('YWJj', 'base64');
testBufs('yKJhYQ==', 'base64');
testBufs('Yci0Ysi1Y8i2', 'base64');
testBufs('YWJj', 4, 'base64');
testBufs('YWJj', SIZE, 'base64');
testBufs('yKJhYQ==', 2, 'base64');
testBufs('yKJhYQ==', 8, 'base64');
testBufs('Yci0Ysi1Y8i2', 4, 'base64');
testBufs('Yci0Ysi1Y8i2', 12, 'base64');
testBufs('YWJj', 4, 1, 'base64');
testBufs('YWJj', 5, 1, 'base64');
testBufs('yKJhYQ==', 8, 1, 'base64');
testBufs('Yci0Ysi1Y8i2', 4, 1, 'base64');
testBufs('Yci0Ysi1Y8i2', 12, 1, 'base64');
// BASE64URL
testBufs('YWJj', 'base64url');
testBufs('yKJhYQ', 'base64url');
testBufs('Yci0Ysi1Y8i2', 'base64url');
testBufs('YWJj', 4, 'base64url');
testBufs('YWJj', SIZE, 'base64url');
testBufs('yKJhYQ', 2, 'base64url');
testBufs('yKJhYQ', 8, 'base64url');
testBufs('Yci0Ysi1Y8i2', 4, 'base64url');
testBufs('Yci0Ysi1Y8i2', 12, 'base64url');
testBufs('YWJj', 4, 1, 'base64url');
testBufs('YWJj', 5, 1, 'base64url');
testBufs('yKJhYQ', 8, 1, 'base64url');
testBufs('Yci0Ysi1Y8i2', 4, 1, 'base64url');
testBufs('Yci0Ysi1Y8i2', 12, 1, 'base64url');
// Buffer
function deepStrictEqualValues(buf, arr) {
for (const [index, value] of buf.entries()) {
assert.deepStrictEqual(value, arr[index]);
}
}
const buf2Fill = Buffer.allocUnsafe(1).fill(2);
deepStrictEqualValues(genBuffer(4, [buf2Fill]), [2, 2, 2, 2]);
deepStrictEqualValues(genBuffer(4, [buf2Fill, 1]), [0, 2, 2, 2]);
deepStrictEqualValues(genBuffer(4, [buf2Fill, 1, 3]), [0, 2, 2, 0]);
deepStrictEqualValues(genBuffer(4, [buf2Fill, 1, 1]), [0, 0, 0, 0]);
const hexBufFill = Buffer.allocUnsafe(2).fill(0).fill('0102', 'hex');
deepStrictEqualValues(genBuffer(4, [hexBufFill]), [1, 2, 1, 2]);
deepStrictEqualValues(genBuffer(4, [hexBufFill, 1]), [0, 1, 2, 1]);
deepStrictEqualValues(genBuffer(4, [hexBufFill, 1, 3]), [0, 1, 2, 0]);
deepStrictEqualValues(genBuffer(4, [hexBufFill, 1, 1]), [0, 0, 0, 0]);
// Check exceptions
[
[0, -1],
[0, 0, buf1.length + 1],
['', -1],
['', 0, buf1.length + 1],
['', 1, -1],
].forEach((args) => {
assert.throws(
() => buf1.fill(...args),
{ code: 'ERR_OUT_OF_RANGE' }
);
});
assert.throws(
() => buf1.fill('a', 0, buf1.length, 'node rocks!'),
{
code: 'ERR_UNKNOWN_ENCODING',
name: 'TypeError',
message: 'Unknown encoding: node rocks!'
}
);
[
['a', 0, 0, NaN],
['a', 0, 0, false],
].forEach((args) => {
assert.throws(
() => buf1.fill(...args),
{
code: 'ERR_INVALID_ARG_TYPE',
message: 'The "encoding" argument must be of type ' +
`string.${common.invalidArgTypeHelper(args[3])}`
}
);
});
assert.throws(
() => buf1.fill('a', 0, 0, 'foo'),
{
code: 'ERR_UNKNOWN_ENCODING',
name: 'TypeError',
message: 'Unknown encoding: foo'
}
);
function genBuffer(size, args) {
const b = Buffer.allocUnsafe(size);
return b.fill(0).fill.apply(b, args);
}
function bufReset() {
buf1.fill(0);
buf2.fill(0);
}
// This is mostly accurate. Except write() won't write partial bytes to the
// string while fill() blindly copies bytes into memory. To account for that an
// error will be thrown if not all the data can be written, and the SIZE has
// been massaged to work with the input characters.
function writeToFill(string, offset, end, encoding) {
if (typeof offset === 'string') {
encoding = offset;
offset = 0;
end = buf2.length;
} else if (typeof end === 'string') {
encoding = end;
end = buf2.length;
} else if (end === undefined) {
end = buf2.length;
}
// Should never be reached.
if (offset < 0 || end > buf2.length)
throw new ERR_OUT_OF_RANGE();
if (end <= offset)
return buf2;
offset >>>= 0;
end >>>= 0;
assert(offset <= buf2.length);
// Convert "end" to "length" (which write understands).
const length = end - offset < 0 ? 0 : end - offset;
let wasZero = false;
do {
const written = buf2.write(string, offset, length, encoding);
offset += written;
// Safety check in case write falls into infinite loop.
if (written === 0) {
if (wasZero)
throw new Error('Could not write all data to Buffer');
else
wasZero = true;
}
} while (offset < buf2.length);
return buf2;
}
function testBufs(string, offset, length, encoding) {
bufReset();
buf1.fill.apply(buf1, arguments);
// Swap bytes on BE archs for ucs2 encoding.
assert.deepStrictEqual(buf1.fill.apply(buf1, arguments),
writeToFill.apply(null, arguments));
}
// Make sure these throw.
assert.throws(
() => Buffer.allocUnsafe(8).fill('a', -1),
{ code: 'ERR_OUT_OF_RANGE' });
assert.throws(
() => Buffer.allocUnsafe(8).fill('a', 0, 9),
{ code: 'ERR_OUT_OF_RANGE' });
// Make sure this doesn't hang indefinitely.
Buffer.allocUnsafe(8).fill('');
Buffer.alloc(8, '');
{
const buf = Buffer.alloc(64, 10);
for (let i = 0; i < buf.length; i++)
assert.strictEqual(buf[i], 10);
buf.fill(11, 0, buf.length >> 1);
for (let i = 0; i < buf.length >> 1; i++)
assert.strictEqual(buf[i], 11);
for (let i = (buf.length >> 1) + 1; i < buf.length; i++)
assert.strictEqual(buf[i], 10);
buf.fill('h');
for (let i = 0; i < buf.length; i++)
assert.strictEqual(buf[i], 'h'.charCodeAt(0));
buf.fill(0);
for (let i = 0; i < buf.length; i++)
assert.strictEqual(buf[i], 0);
buf.fill(null);
for (let i = 0; i < buf.length; i++)
assert.strictEqual(buf[i], 0);
buf.fill(1, 16, 32);
for (let i = 0; i < 16; i++)
assert.strictEqual(buf[i], 0);
for (let i = 16; i < 32; i++)
assert.strictEqual(buf[i], 1);
for (let i = 32; i < buf.length; i++)
assert.strictEqual(buf[i], 0);
}
{
const buf = Buffer.alloc(10, 'abc');
assert.strictEqual(buf.toString(), 'abcabcabca');
buf.fill('է');
assert.strictEqual(buf.toString(), 'էէէէէ');
}
// Testing process.binding. Make sure "start" is properly checked for range
// errors.
assert.throws(
() => { internalBinding('buffer').fill(Buffer.alloc(1), 1, -1, 0, 1); },
{ code: 'ERR_OUT_OF_RANGE' }
);
// Make sure "end" is properly checked, even if it's magically mangled using
// Symbol.toPrimitive.
{
assert.throws(() => {
const end = {
[Symbol.toPrimitive]() {
return 1;
}
};
Buffer.alloc(1).fill(Buffer.alloc(1), 0, end);
}, {
code: 'ERR_INVALID_ARG_TYPE',
message: 'The "end" argument must be of type number. Received an ' +
'instance of Object'
});
}
// Testing process.binding. Make sure "end" is properly checked for range
// errors.
assert.throws(
() => { internalBinding('buffer').fill(Buffer.alloc(1), 1, 1, -2, 1); },
{ code: 'ERR_OUT_OF_RANGE' }
);
// Test that bypassing 'length' won't cause an abort.
assert.throws(() => {
const buf = Buffer.from('w00t');
Object.defineProperty(buf, 'length', {
value: 1337,
enumerable: true
});
buf.fill('');
}, {
code: 'ERR_BUFFER_OUT_OF_BOUNDS',
name: 'RangeError',
message: 'Attempt to access memory outside buffer bounds'
});
assert.deepStrictEqual(
Buffer.allocUnsafeSlow(16).fill('ab', 'utf16le'),
Buffer.from('61006200610062006100620061006200', 'hex'));
assert.deepStrictEqual(
Buffer.allocUnsafeSlow(15).fill('ab', 'utf16le'),
Buffer.from('610062006100620061006200610062', 'hex'));
assert.deepStrictEqual(
Buffer.allocUnsafeSlow(16).fill('ab', 'utf16le'),
Buffer.from('61006200610062006100620061006200', 'hex'));
assert.deepStrictEqual(
Buffer.allocUnsafeSlow(16).fill('a', 'utf16le'),
Buffer.from('61006100610061006100610061006100', 'hex'));
assert.strictEqual(
Buffer.allocUnsafeSlow(16).fill('a', 'utf16le').toString('utf16le'),
'a'.repeat(8));
assert.strictEqual(
Buffer.allocUnsafeSlow(16).fill('a', 'latin1').toString('latin1'),
'a'.repeat(16));
assert.strictEqual(
Buffer.allocUnsafeSlow(16).fill('a', 'utf8').toString('utf8'),
'a'.repeat(16));
assert.strictEqual(
Buffer.allocUnsafeSlow(16).fill('Љ', 'utf16le').toString('utf16le'),
'Љ'.repeat(8));
assert.strictEqual(
Buffer.allocUnsafeSlow(16).fill('Љ', 'latin1').toString('latin1'),
'\t'.repeat(16));
assert.strictEqual(
Buffer.allocUnsafeSlow(16).fill('Љ', 'utf8').toString('utf8'),
'Љ'.repeat(8));
assert.throws(() => {
const buf = Buffer.from('a'.repeat(1000));
buf.fill('This is not correctly encoded', 'hex');
}, {
code: 'ERR_INVALID_ARG_VALUE',
name: 'TypeError'
});
{
const bufEmptyString = Buffer.alloc(5, '');
assert.strictEqual(bufEmptyString.toString(), '\x00\x00\x00\x00\x00');
const bufEmptyArray = Buffer.alloc(5, []);
assert.strictEqual(bufEmptyArray.toString(), '\x00\x00\x00\x00\x00');
const bufEmptyBuffer = Buffer.alloc(5, Buffer.alloc(5));
assert.strictEqual(bufEmptyBuffer.toString(), '\x00\x00\x00\x00\x00');
const bufZero = Buffer.alloc(5, 0);
assert.strictEqual(bufZero.toString(), '\x00\x00\x00\x00\x00');
}
Zerion Mini Shell 1.0