273 lines
8.2 KiB
JavaScript
273 lines
8.2 KiB
JavaScript
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'use strict';
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var Buffer = require('../../').Buffer;
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var assert = require('assert');
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var os = require('os');
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var SIZE = 28;
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var buf1 = Buffer.allocUnsafe(SIZE);
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var 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.equal(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.equal(Buffer.allocUnsafe(1).fill('\u0222', 'ucs2')[0],
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os.endianness() === 'LE' ? 0x22 : 0x02);
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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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// Make sure this operation doesn't go on forever
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buf1.fill('yKJh', 'hex');
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assert.throws(() => buf1.fill('\u0222', 'hex'));
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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 (var [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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var 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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var 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(() => buf1.fill(0, -1));
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assert.throws(() => buf1.fill(0, 0, buf1.length + 1));
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assert.throws(() => buf1.fill('', -1));
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assert.throws(() => buf1.fill('', 0, buf1.length + 1));
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assert.throws(() => buf1.fill('a', 0, buf1.length, 'node rocks!'));
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assert.throws(() => buf1.fill('a', 0, 0, NaN));
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assert.throws(() => buf1.fill('a', 0, 0, null));
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assert.throws(() => buf1.fill('a', 0, 0, 'foo'));
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function genBuffer(size, args) {
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var 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 RangeError('Out of range index');
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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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var length = end - offset < 0 ? 0 : end - offset;
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var wasZero = false;
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do {
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var 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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// Correction for UCS2 operations.
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if (os.endianness() === 'BE' && encoding === 'ucs2') {
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for (var i = 0; i < buf2.length; i += 2) {
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var tmp = buf2[i];
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buf2[i] = buf2[i + 1];
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buf2[i + 1] = tmp;
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}
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}
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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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