105 lines
3.7 KiB
JavaScript
105 lines
3.7 KiB
JavaScript
import {EncodeStream} from 'restructure';
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import assert from 'assert';
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describe('EncodeStream', function() {
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it('should write a buffer', function() {
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const stream = new EncodeStream(new Uint8Array(3));
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stream.writeBuffer(new Uint8Array([1,2,3]));
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assert.deepEqual(stream.buffer, new Uint8Array([1,2,3]));
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});
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it('should writeUInt16BE', function() {
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const stream = new EncodeStream(new Uint8Array(2));
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stream.writeUInt16BE(0xabcd);
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assert.deepEqual(stream.buffer, new Uint8Array([0xab, 0xcd]));
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});
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it('should writeUInt16LE', function() {
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const stream = new EncodeStream(new Uint8Array(2));
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stream.writeUInt16LE(0xcdab);
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assert.deepEqual(stream.buffer, new Uint8Array([0xab, 0xcd]));
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});
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it('should writeUInt24BE', function() {
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const stream = new EncodeStream(new Uint8Array(3));
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stream.writeUInt24BE(0xabcdef);
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assert.deepEqual(stream.buffer, new Uint8Array([0xab, 0xcd, 0xef]));
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});
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it('should writeUInt24LE', function() {
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const stream = new EncodeStream(new Uint8Array(3));
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stream.writeUInt24LE(0xabcdef);
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assert.deepEqual(stream.buffer, new Uint8Array([0xef, 0xcd, 0xab]));
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});
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it('should writeInt24BE', function() {
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const stream = new EncodeStream(new Uint8Array(6));
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stream.writeInt24BE(-21724);
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stream.writeInt24BE(0xabcdef);
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assert.deepEqual(stream.buffer, new Uint8Array([0xff, 0xab, 0x24, 0xab, 0xcd, 0xef]));
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});
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it('should writeInt24LE', function() {
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const stream = new EncodeStream(new Uint8Array(6));
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stream.writeInt24LE(-21724);
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stream.writeInt24LE(0xabcdef);
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assert.deepEqual(stream.buffer, new Uint8Array([0x24, 0xab, 0xff, 0xef, 0xcd, 0xab]));
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});
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it('should fill', function() {
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const stream = new EncodeStream(new Uint8Array(5));
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stream.fill(10, 5);
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assert.deepEqual(stream.buffer, new Uint8Array([10, 10, 10, 10, 10]));
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});
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describe('writeString', function() {
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it('should encode ascii by default', function() {
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const expected = Buffer.from('some text', 'ascii');
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const stream = new EncodeStream(new Uint8Array(expected.length));
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stream.writeString('some text');
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assert.deepEqual(stream.buffer, expected);
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});
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it('should encode ascii', function() {
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const expected = Buffer.from('some text', 'ascii');
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const stream = new EncodeStream(new Uint8Array(expected.length));
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stream.writeString('some text', 'ascii');
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assert.deepEqual(stream.buffer, expected);
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});
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it('should encode utf8', function() {
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const expected = Buffer.from('unicode! 👍', 'utf8');
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const stream = new EncodeStream(new Uint8Array(expected.length));
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stream.writeString('unicode! 👍', 'utf8');
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assert.deepEqual(stream.buffer, expected);
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});
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it('should encode utf16le', function() {
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const expected = Buffer.from('unicode! 👍', 'utf16le');
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const stream = new EncodeStream(new Uint8Array(expected.length));
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stream.writeString('unicode! 👍', 'utf16le');
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assert.deepEqual(stream.buffer, expected);
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});
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it('should encode ucs2', function() {
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const expected = Buffer.from('unicode! 👍', 'ucs2');
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const stream = new EncodeStream(new Uint8Array(expected.length));
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stream.writeString('unicode! 👍', 'ucs2');
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assert.deepEqual(stream.buffer, expected);
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});
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it('should encode utf16be', function() {
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const expected = Buffer.from('unicode! 👍', 'utf16le');
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for (let i = 0, end = expected.length - 1; i < end; i += 2) {
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const byte = expected[i];
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expected[i] = expected[i + 1];
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expected[i + 1] = byte;
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}
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const stream = new EncodeStream(new Uint8Array(expected.length));
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stream.writeString('unicode! 👍', 'utf16be');
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assert.deepEqual(stream.buffer, expected);
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});
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});
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});
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