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452 lines
14 KiB
452 lines
14 KiB
// Flags: --expose-internals
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'use strict';
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const common = require('../common');
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const assert = require('assert');
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const errors = require('internal/errors');
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const SIZE = 28;
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const buf1 = Buffer.allocUnsafe(SIZE);
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const buf2 = Buffer.allocUnsafe(SIZE);
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// Default encoding
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testBufs('abc');
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testBufs('\u0222aa');
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testBufs('a\u0234b\u0235c\u0236');
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testBufs('abc', 4);
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testBufs('abc', 5);
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testBufs('abc', SIZE);
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testBufs('\u0222aa', 2);
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testBufs('\u0222aa', 8);
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testBufs('a\u0234b\u0235c\u0236', 4);
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testBufs('a\u0234b\u0235c\u0236', 12);
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testBufs('abc', 4, -1);
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testBufs('abc', 4, 1);
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testBufs('abc', 5, 1);
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testBufs('\u0222aa', 2, -1);
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testBufs('\u0222aa', 8, 1);
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testBufs('a\u0234b\u0235c\u0236', 4, -1);
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testBufs('a\u0234b\u0235c\u0236', 4, 1);
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testBufs('a\u0234b\u0235c\u0236', 12, 1);
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// UTF8
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testBufs('abc', 'utf8');
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testBufs('\u0222aa', 'utf8');
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testBufs('a\u0234b\u0235c\u0236', 'utf8');
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testBufs('abc', 4, 'utf8');
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testBufs('abc', 5, 'utf8');
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testBufs('abc', SIZE, 'utf8');
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testBufs('\u0222aa', 2, 'utf8');
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testBufs('\u0222aa', 8, 'utf8');
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testBufs('a\u0234b\u0235c\u0236', 4, 'utf8');
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testBufs('a\u0234b\u0235c\u0236', 12, 'utf8');
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testBufs('abc', 4, -1, 'utf8');
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testBufs('abc', 4, 1, 'utf8');
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testBufs('abc', 5, 1, 'utf8');
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testBufs('\u0222aa', 2, -1, 'utf8');
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testBufs('\u0222aa', 8, 1, 'utf8');
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testBufs('a\u0234b\u0235c\u0236', 4, -1, 'utf8');
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testBufs('a\u0234b\u0235c\u0236', 4, 1, 'utf8');
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testBufs('a\u0234b\u0235c\u0236', 12, 1, 'utf8');
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assert.strictEqual(Buffer.allocUnsafe(1).fill(0).fill('\u0222')[0], 0xc8);
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// BINARY
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testBufs('abc', 'binary');
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testBufs('\u0222aa', 'binary');
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testBufs('a\u0234b\u0235c\u0236', 'binary');
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testBufs('abc', 4, 'binary');
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testBufs('abc', 5, 'binary');
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testBufs('abc', SIZE, 'binary');
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testBufs('\u0222aa', 2, 'binary');
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testBufs('\u0222aa', 8, 'binary');
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testBufs('a\u0234b\u0235c\u0236', 4, 'binary');
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testBufs('a\u0234b\u0235c\u0236', 12, 'binary');
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testBufs('abc', 4, -1, 'binary');
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testBufs('abc', 4, 1, 'binary');
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testBufs('abc', 5, 1, 'binary');
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testBufs('\u0222aa', 2, -1, 'binary');
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testBufs('\u0222aa', 8, 1, 'binary');
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testBufs('a\u0234b\u0235c\u0236', 4, -1, 'binary');
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testBufs('a\u0234b\u0235c\u0236', 4, 1, 'binary');
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testBufs('a\u0234b\u0235c\u0236', 12, 1, 'binary');
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// LATIN1
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testBufs('abc', 'latin1');
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testBufs('\u0222aa', 'latin1');
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testBufs('a\u0234b\u0235c\u0236', 'latin1');
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testBufs('abc', 4, 'latin1');
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testBufs('abc', 5, 'latin1');
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testBufs('abc', SIZE, 'latin1');
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testBufs('\u0222aa', 2, 'latin1');
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testBufs('\u0222aa', 8, 'latin1');
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testBufs('a\u0234b\u0235c\u0236', 4, 'latin1');
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testBufs('a\u0234b\u0235c\u0236', 12, 'latin1');
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testBufs('abc', 4, -1, 'latin1');
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testBufs('abc', 4, 1, 'latin1');
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testBufs('abc', 5, 1, 'latin1');
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testBufs('\u0222aa', 2, -1, 'latin1');
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testBufs('\u0222aa', 8, 1, 'latin1');
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testBufs('a\u0234b\u0235c\u0236', 4, -1, 'latin1');
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testBufs('a\u0234b\u0235c\u0236', 4, 1, 'latin1');
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testBufs('a\u0234b\u0235c\u0236', 12, 1, 'latin1');
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// UCS2
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testBufs('abc', 'ucs2');
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testBufs('\u0222aa', 'ucs2');
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testBufs('a\u0234b\u0235c\u0236', 'ucs2');
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testBufs('abc', 4, 'ucs2');
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testBufs('abc', SIZE, 'ucs2');
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testBufs('\u0222aa', 2, 'ucs2');
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testBufs('\u0222aa', 8, 'ucs2');
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testBufs('a\u0234b\u0235c\u0236', 4, 'ucs2');
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testBufs('a\u0234b\u0235c\u0236', 12, 'ucs2');
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testBufs('abc', 4, -1, 'ucs2');
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testBufs('abc', 4, 1, 'ucs2');
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testBufs('abc', 5, 1, 'ucs2');
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testBufs('\u0222aa', 2, -1, 'ucs2');
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testBufs('\u0222aa', 8, 1, 'ucs2');
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testBufs('a\u0234b\u0235c\u0236', 4, -1, 'ucs2');
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testBufs('a\u0234b\u0235c\u0236', 4, 1, 'ucs2');
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testBufs('a\u0234b\u0235c\u0236', 12, 1, 'ucs2');
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assert.strictEqual(Buffer.allocUnsafe(1).fill('\u0222', 'ucs2')[0], 0x22);
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// HEX
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testBufs('616263', 'hex');
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testBufs('c8a26161', 'hex');
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testBufs('61c8b462c8b563c8b6', 'hex');
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testBufs('616263', 4, 'hex');
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testBufs('616263', 5, 'hex');
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testBufs('616263', SIZE, 'hex');
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testBufs('c8a26161', 2, 'hex');
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testBufs('c8a26161', 8, 'hex');
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testBufs('61c8b462c8b563c8b6', 4, 'hex');
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testBufs('61c8b462c8b563c8b6', 12, 'hex');
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testBufs('616263', 4, -1, 'hex');
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testBufs('616263', 4, 1, 'hex');
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testBufs('616263', 5, 1, 'hex');
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testBufs('c8a26161', 2, -1, 'hex');
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testBufs('c8a26161', 8, 1, 'hex');
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testBufs('61c8b462c8b563c8b6', 4, -1, 'hex');
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testBufs('61c8b462c8b563c8b6', 4, 1, 'hex');
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testBufs('61c8b462c8b563c8b6', 12, 1, 'hex');
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{
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const buf = Buffer.allocUnsafe(SIZE);
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assert.doesNotThrow(() => {
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// Make sure this operation doesn't go on forever.
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buf.fill('yKJh', 'hex');
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});
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}
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{
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const buf = Buffer.allocUnsafe(SIZE);
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assert.doesNotThrow(() => {
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buf.fill('\u0222', 'hex');
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});
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}
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// BASE64
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testBufs('YWJj', 'ucs2');
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testBufs('yKJhYQ==', 'ucs2');
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testBufs('Yci0Ysi1Y8i2', 'ucs2');
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testBufs('YWJj', 4, 'ucs2');
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testBufs('YWJj', SIZE, 'ucs2');
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testBufs('yKJhYQ==', 2, 'ucs2');
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testBufs('yKJhYQ==', 8, 'ucs2');
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testBufs('Yci0Ysi1Y8i2', 4, 'ucs2');
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testBufs('Yci0Ysi1Y8i2', 12, 'ucs2');
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testBufs('YWJj', 4, -1, 'ucs2');
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testBufs('YWJj', 4, 1, 'ucs2');
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testBufs('YWJj', 5, 1, 'ucs2');
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testBufs('yKJhYQ==', 2, -1, 'ucs2');
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testBufs('yKJhYQ==', 8, 1, 'ucs2');
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testBufs('Yci0Ysi1Y8i2', 4, -1, 'ucs2');
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testBufs('Yci0Ysi1Y8i2', 4, 1, 'ucs2');
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testBufs('Yci0Ysi1Y8i2', 12, 1, 'ucs2');
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// Buffer
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function deepStrictEqualValues(buf, arr) {
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for (const [index, value] of buf.entries()) {
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assert.deepStrictEqual(value, arr[index]);
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}
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}
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const buf2Fill = Buffer.allocUnsafe(1).fill(2);
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deepStrictEqualValues(genBuffer(4, [buf2Fill]), [2, 2, 2, 2]);
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deepStrictEqualValues(genBuffer(4, [buf2Fill, 1]), [0, 2, 2, 2]);
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deepStrictEqualValues(genBuffer(4, [buf2Fill, 1, 3]), [0, 2, 2, 0]);
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deepStrictEqualValues(genBuffer(4, [buf2Fill, 1, 1]), [0, 0, 0, 0]);
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deepStrictEqualValues(genBuffer(4, [buf2Fill, 1, -1]), [0, 0, 0, 0]);
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const hexBufFill = Buffer.allocUnsafe(2).fill(0).fill('0102', 'hex');
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deepStrictEqualValues(genBuffer(4, [hexBufFill]), [1, 2, 1, 2]);
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deepStrictEqualValues(genBuffer(4, [hexBufFill, 1]), [0, 1, 2, 1]);
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deepStrictEqualValues(genBuffer(4, [hexBufFill, 1, 3]), [0, 1, 2, 0]);
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deepStrictEqualValues(genBuffer(4, [hexBufFill, 1, 1]), [0, 0, 0, 0]);
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deepStrictEqualValues(genBuffer(4, [hexBufFill, 1, -1]), [0, 0, 0, 0]);
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// Check exceptions
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assert.throws(
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() => buf1.fill(0, -1),
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common.expectsError({code: 'ERR_INDEX_OUT_OF_RANGE'}));
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assert.throws(
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() => buf1.fill(0, 0, buf1.length + 1),
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common.expectsError({code: 'ERR_INDEX_OUT_OF_RANGE'}));
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assert.throws(
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() => buf1.fill('', -1),
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common.expectsError({code: 'ERR_INDEX_OUT_OF_RANGE'}));
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assert.throws(
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() => buf1.fill('', 0, buf1.length + 1),
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common.expectsError({code: 'ERR_INDEX_OUT_OF_RANGE'}));
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assert.throws(
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() => buf1.fill('a', 0, buf1.length, 'node rocks!'),
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/^TypeError: Unknown encoding: node rocks!$/);
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assert.throws(
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() => buf1.fill('a', 0, 0, NaN),
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/^TypeError: encoding must be a string$/);
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assert.throws(
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() => buf1.fill('a', 0, 0, null),
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/^TypeError: encoding must be a string$/);
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assert.throws(
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() => buf1.fill('a', 0, 0, 'foo'),
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/^TypeError: Unknown encoding: foo$/);
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function genBuffer(size, args) {
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const b = Buffer.allocUnsafe(size);
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return b.fill(0).fill.apply(b, args);
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}
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function bufReset() {
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buf1.fill(0);
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buf2.fill(0);
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}
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// This is mostly accurate. Except write() won't write partial bytes to the
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// string while fill() blindly copies bytes into memory. To account for that an
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// error will be thrown if not all the data can be written, and the SIZE has
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// been massaged to work with the input characters.
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function writeToFill(string, offset, end, encoding) {
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if (typeof offset === 'string') {
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encoding = offset;
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offset = 0;
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end = buf2.length;
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} else if (typeof end === 'string') {
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encoding = end;
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end = buf2.length;
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} else if (end === undefined) {
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end = buf2.length;
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}
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if (offset < 0 || end > buf2.length)
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throw new errors.RangeError('ERR_INDEX_OUT_OF_RANGE');
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if (end <= offset)
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return buf2;
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offset >>>= 0;
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end >>>= 0;
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assert(offset <= buf2.length);
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// Convert "end" to "length" (which write understands).
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const length = end - offset < 0 ? 0 : end - offset;
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let wasZero = false;
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do {
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const written = buf2.write(string, offset, length, encoding);
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offset += written;
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// Safety check in case write falls into infinite loop.
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if (written === 0) {
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if (wasZero)
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throw new Error('Could not write all data to Buffer');
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else
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wasZero = true;
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}
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} while (offset < buf2.length);
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return buf2;
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}
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function testBufs(string, offset, length, encoding) {
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bufReset();
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buf1.fill.apply(buf1, arguments);
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// Swap bytes on BE archs for ucs2 encoding.
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assert.deepStrictEqual(buf1.fill.apply(buf1, arguments),
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writeToFill.apply(null, arguments));
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}
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// Make sure these throw.
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assert.throws(
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() => Buffer.allocUnsafe(8).fill('a', -1),
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common.expectsError({code: 'ERR_INDEX_OUT_OF_RANGE'}));
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assert.throws(
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() => Buffer.allocUnsafe(8).fill('a', 0, 9),
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common.expectsError({code: 'ERR_INDEX_OUT_OF_RANGE'}));
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// Make sure this doesn't hang indefinitely.
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Buffer.allocUnsafe(8).fill('');
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Buffer.alloc(8, '');
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{
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const buf = Buffer.alloc(64, 10);
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for (let i = 0; i < buf.length; i++)
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assert.strictEqual(buf[i], 10);
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buf.fill(11, 0, buf.length >> 1);
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for (let i = 0; i < buf.length >> 1; i++)
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assert.strictEqual(buf[i], 11);
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for (let i = (buf.length >> 1) + 1; i < buf.length; i++)
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assert.strictEqual(buf[i], 10);
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buf.fill('h');
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for (let i = 0; i < buf.length; i++)
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assert.strictEqual('h'.charCodeAt(0), buf[i]);
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buf.fill(0);
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for (let i = 0; i < buf.length; i++)
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assert.strictEqual(0, buf[i]);
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buf.fill(null);
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for (let i = 0; i < buf.length; i++)
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assert.strictEqual(0, buf[i]);
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buf.fill(1, 16, 32);
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for (let i = 0; i < 16; i++)
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assert.strictEqual(0, buf[i]);
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for (let i = 16; i < 32; i++)
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assert.strictEqual(1, buf[i]);
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for (let i = 32; i < buf.length; i++)
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assert.strictEqual(0, buf[i]);
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}
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{
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const buf = Buffer.alloc(10, 'abc');
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assert.strictEqual(buf.toString(), 'abcabcabca');
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buf.fill('է');
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assert.strictEqual(buf.toString(), 'էէէէէ');
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}
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// Testing public API. Make sure "start" is properly checked, even if it's
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// magically mangled using Symbol.toPrimitive.
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{
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let elseWasLast = false;
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assert.throws(() => {
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let ctr = 0;
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const start = {
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[Symbol.toPrimitive]() {
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// We use this condition to get around the check in lib/buffer.js
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if (ctr <= 0) {
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elseWasLast = false;
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ctr = ctr + 1;
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return 0;
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} else {
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elseWasLast = true;
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// Once buffer.js calls the C++ implemenation of fill, return -1
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return -1;
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}
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}
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};
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Buffer.alloc(1).fill(Buffer.alloc(1), start, 1);
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}, common.expectsError(
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{code: undefined, type: RangeError, message: 'Index out of range'}));
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// Make sure -1 is making it to Buffer::Fill().
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assert.ok(elseWasLast,
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'internal API changed, -1 no longer in correct location');
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}
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// Testing process.binding. Make sure "start" is properly checked for -1 wrap
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// around.
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assert.throws(() => {
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process.binding('buffer').fill(Buffer.alloc(1), 1, -1, 0, 1);
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}, common.expectsError(
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{code: undefined, type: RangeError, message: 'Index out of range'}));
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// Make sure "end" is properly checked, even if it's magically mangled using
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// Symbol.toPrimitive.
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{
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let elseWasLast = false;
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assert.throws(() => {
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let ctr = 0;
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const end = {
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[Symbol.toPrimitive]() {
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// We use this condition to get around the check in lib/buffer.js
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if (ctr <= 1) {
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elseWasLast = false;
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ctr = ctr + 1;
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return 1;
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} else {
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elseWasLast = true;
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// Once buffer.js calls the C++ implemenation of fill, return -1
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return -1;
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}
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}
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};
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Buffer.alloc(1).fill(Buffer.alloc(1), 0, end);
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}, common.expectsError(
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{code: undefined, type: RangeError, message: 'Index out of range'}));
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// Make sure -1 is making it to Buffer::Fill().
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assert.ok(elseWasLast,
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'internal API changed, -1 no longer in correct location');
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}
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// Testing process.binding. Make sure "end" is properly checked for -1 wrap
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// around.
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assert.throws(() => {
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process.binding('buffer').fill(Buffer.alloc(1), 1, 1, -2, 1);
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}, common.expectsError(
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{ code: undefined, type: RangeError, message: 'Index out of range'}));
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// Test that bypassing 'length' won't cause an abort.
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assert.throws(() => {
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const buf = new Buffer('w00t');
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Object.defineProperty(buf, 'length', {
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value: 1337,
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enumerable: true
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});
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buf.fill('');
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}, common.expectsError(
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{ code: undefined, type: RangeError, message: 'Index out of range'}));
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assert.deepStrictEqual(
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Buffer.allocUnsafeSlow(16).fill('ab', 'utf16le'),
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Buffer.from('61006200610062006100620061006200', 'hex'));
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assert.deepStrictEqual(
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Buffer.allocUnsafeSlow(15).fill('ab', 'utf16le'),
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Buffer.from('610062006100620061006200610062', 'hex'));
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|
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));
|
|
|