mirror of
https://github.com/nodejs/node.git
synced 2024-11-25 08:19:38 +01:00
3e1b1dd4a9
The copyright and license notice is already in the LICENSE file. There is no justifiable reason to also require that it be included in every file, since the individual files are not individually distributed except as part of the entire package.
98 lines
2.4 KiB
JavaScript
98 lines
2.4 KiB
JavaScript
/*
|
|
* Tests to verify we're reading in signed integers correctly
|
|
*/
|
|
var common = require('../common');
|
|
var ASSERT = require('assert');
|
|
|
|
/*
|
|
* Test 8 bit signed integers
|
|
*/
|
|
function test8(clazz) {
|
|
var data = new clazz(4);
|
|
|
|
data[0] = 0x23;
|
|
ASSERT.equal(0x23, data.readInt8(0));
|
|
|
|
data[0] = 0xff;
|
|
ASSERT.equal(-1, data.readInt8(0));
|
|
|
|
data[0] = 0x87;
|
|
data[1] = 0xab;
|
|
data[2] = 0x7c;
|
|
data[3] = 0xef;
|
|
ASSERT.equal(-121, data.readInt8(0));
|
|
ASSERT.equal(-85, data.readInt8(1));
|
|
ASSERT.equal(124, data.readInt8(2));
|
|
ASSERT.equal(-17, data.readInt8(3));
|
|
}
|
|
|
|
|
|
function test16(clazz) {
|
|
var buffer = new clazz(6);
|
|
|
|
buffer[0] = 0x16;
|
|
buffer[1] = 0x79;
|
|
ASSERT.equal(0x1679, buffer.readInt16BE(0));
|
|
ASSERT.equal(0x7916, buffer.readInt16LE(0));
|
|
|
|
buffer[0] = 0xff;
|
|
buffer[1] = 0x80;
|
|
ASSERT.equal(-128, buffer.readInt16BE(0));
|
|
ASSERT.equal(-32513, buffer.readInt16LE(0));
|
|
|
|
/* test offset with weenix */
|
|
buffer[0] = 0x77;
|
|
buffer[1] = 0x65;
|
|
buffer[2] = 0x65;
|
|
buffer[3] = 0x6e;
|
|
buffer[4] = 0x69;
|
|
buffer[5] = 0x78;
|
|
ASSERT.equal(0x7765, buffer.readInt16BE(0));
|
|
ASSERT.equal(0x6565, buffer.readInt16BE(1));
|
|
ASSERT.equal(0x656e, buffer.readInt16BE(2));
|
|
ASSERT.equal(0x6e69, buffer.readInt16BE(3));
|
|
ASSERT.equal(0x6978, buffer.readInt16BE(4));
|
|
ASSERT.equal(0x6577, buffer.readInt16LE(0));
|
|
ASSERT.equal(0x6565, buffer.readInt16LE(1));
|
|
ASSERT.equal(0x6e65, buffer.readInt16LE(2));
|
|
ASSERT.equal(0x696e, buffer.readInt16LE(3));
|
|
ASSERT.equal(0x7869, buffer.readInt16LE(4));
|
|
}
|
|
|
|
|
|
function test32(clazz) {
|
|
var buffer = new clazz(6);
|
|
|
|
buffer[0] = 0x43;
|
|
buffer[1] = 0x53;
|
|
buffer[2] = 0x16;
|
|
buffer[3] = 0x79;
|
|
ASSERT.equal(0x43531679, buffer.readInt32BE(0));
|
|
ASSERT.equal(0x79165343, buffer.readInt32LE(0));
|
|
|
|
buffer[0] = 0xff;
|
|
buffer[1] = 0xfe;
|
|
buffer[2] = 0xef;
|
|
buffer[3] = 0xfa;
|
|
ASSERT.equal(-69638, buffer.readInt32BE(0));
|
|
ASSERT.equal(-84934913, buffer.readInt32LE(0));
|
|
|
|
buffer[0] = 0x42;
|
|
buffer[1] = 0xc3;
|
|
buffer[2] = 0x95;
|
|
buffer[3] = 0xa9;
|
|
buffer[4] = 0x36;
|
|
buffer[5] = 0x17;
|
|
ASSERT.equal(0x42c395a9, buffer.readInt32BE(0));
|
|
ASSERT.equal(-1013601994, buffer.readInt32BE(1));
|
|
ASSERT.equal(-1784072681, buffer.readInt32BE(2));
|
|
ASSERT.equal(-1449802942, buffer.readInt32LE(0));
|
|
ASSERT.equal(917083587, buffer.readInt32LE(1));
|
|
ASSERT.equal(389458325, buffer.readInt32LE(2));
|
|
}
|
|
|
|
|
|
test8(Buffer);
|
|
test16(Buffer);
|
|
test32(Buffer);
|