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const {Buffer:BufferT, DecodeStream, EncodeStream, uint8} = require('../');
const should = require('chai').should();
const concat = require('concat-stream');
describe('Buffer', function() {
describe('decode', function() {
it('should decode', function() {
const stream = new DecodeStream(Buffer.from([0xab, 0xff, 0x1f, 0xb6]));
const buf = new BufferT(2);
buf.decode(stream).should.deep.equal(Buffer.from([0xab, 0xff]));
return buf.decode(stream).should.deep.equal(Buffer.from([0x1f, 0xb6]));
});
return it('should decode with parent key length', function() {
const stream = new DecodeStream(Buffer.from([0xab, 0xff, 0x1f, 0xb6]));
const buf = new BufferT('len');
buf.decode(stream, {len: 3}).should.deep.equal(Buffer.from([0xab, 0xff, 0x1f]));
return buf.decode(stream, {len: 1}).should.deep.equal(Buffer.from([0xb6]));
});
});
describe('size', function() {
it('should return size', function() {
const buf = new BufferT(2);
return buf.size(Buffer.from([0xab, 0xff])).should.equal(2);
});
return it('should use defined length if no value given', function() {
const array = new BufferT(10);
return array.size().should.equal(10);
});
});
return describe('encode', function() {
it('should encode', function(done) {
const stream = new EncodeStream;
stream.pipe(concat(function(buf) {
buf.should.deep.equal(Buffer.from([0xab, 0xff, 0x1f, 0xb6]));
return done();
})
);
const buf = new BufferT(2);
buf.encode(stream, Buffer.from([0xab, 0xff]));
buf.encode(stream, Buffer.from([0x1f, 0xb6]));
return stream.end();
});
return it('should encode length before buffer', function(done) {
const stream = new EncodeStream;
stream.pipe(concat(function(buf) {
buf.should.deep.equal(Buffer.from([2, 0xab, 0xff]));
return done();
})
);
const buf = new BufferT(uint8);
buf.encode(stream, Buffer.from([0xab, 0xff]));
return stream.end();
});
});
});