f29762f4dd
Enable linting for the test directory. A number of changes was made so all tests conform the current rules used by lib and src directories. The only exception for tests is that unreachable (dead) code is allowed. test-fs-non-number-arguments-throw had to be excluded from the changes because of a weird issue on Windows CI. PR-URL: https://github.com/nodejs/io.js/pull/1721 Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
114 lines
3.6 KiB
JavaScript
114 lines
3.6 KiB
JavaScript
'use strict';
|
|
/*
|
|
* Tests to verify we're writing floats correctly
|
|
*/
|
|
var common = require('../common');
|
|
var ASSERT = require('assert');
|
|
|
|
function test(clazz) {
|
|
var buffer = new clazz(8);
|
|
|
|
buffer.writeFloatBE(1, 0);
|
|
buffer.writeFloatLE(1, 4);
|
|
ASSERT.equal(0x3f, buffer[0]);
|
|
ASSERT.equal(0x80, buffer[1]);
|
|
ASSERT.equal(0x00, buffer[2]);
|
|
ASSERT.equal(0x00, buffer[3]);
|
|
ASSERT.equal(0x00, buffer[4]);
|
|
ASSERT.equal(0x00, buffer[5]);
|
|
ASSERT.equal(0x80, buffer[6]);
|
|
ASSERT.equal(0x3f, buffer[7]);
|
|
|
|
buffer.writeFloatBE(1 / 3, 0);
|
|
buffer.writeFloatLE(1 / 3, 4);
|
|
ASSERT.equal(0x3e, buffer[0]);
|
|
ASSERT.equal(0xaa, buffer[1]);
|
|
ASSERT.equal(0xaa, buffer[2]);
|
|
ASSERT.equal(0xab, buffer[3]);
|
|
ASSERT.equal(0xab, buffer[4]);
|
|
ASSERT.equal(0xaa, buffer[5]);
|
|
ASSERT.equal(0xaa, buffer[6]);
|
|
ASSERT.equal(0x3e, buffer[7]);
|
|
|
|
buffer.writeFloatBE(3.4028234663852886e+38, 0);
|
|
buffer.writeFloatLE(3.4028234663852886e+38, 4);
|
|
ASSERT.equal(0x7f, buffer[0]);
|
|
ASSERT.equal(0x7f, buffer[1]);
|
|
ASSERT.equal(0xff, buffer[2]);
|
|
ASSERT.equal(0xff, buffer[3]);
|
|
ASSERT.equal(0xff, buffer[4]);
|
|
ASSERT.equal(0xff, buffer[5]);
|
|
ASSERT.equal(0x7f, buffer[6]);
|
|
ASSERT.equal(0x7f, buffer[7]);
|
|
|
|
buffer.writeFloatLE(1.1754943508222875e-38, 0);
|
|
buffer.writeFloatBE(1.1754943508222875e-38, 4);
|
|
ASSERT.equal(0x00, buffer[0]);
|
|
ASSERT.equal(0x00, buffer[1]);
|
|
ASSERT.equal(0x80, buffer[2]);
|
|
ASSERT.equal(0x00, buffer[3]);
|
|
ASSERT.equal(0x00, buffer[4]);
|
|
ASSERT.equal(0x80, buffer[5]);
|
|
ASSERT.equal(0x00, buffer[6]);
|
|
ASSERT.equal(0x00, buffer[7]);
|
|
|
|
buffer.writeFloatBE(0 * -1, 0);
|
|
buffer.writeFloatLE(0 * -1, 4);
|
|
ASSERT.equal(0x80, buffer[0]);
|
|
ASSERT.equal(0x00, buffer[1]);
|
|
ASSERT.equal(0x00, buffer[2]);
|
|
ASSERT.equal(0x00, buffer[3]);
|
|
ASSERT.equal(0x00, buffer[4]);
|
|
ASSERT.equal(0x00, buffer[5]);
|
|
ASSERT.equal(0x00, buffer[6]);
|
|
ASSERT.equal(0x80, buffer[7]);
|
|
|
|
buffer.writeFloatBE(Infinity, 0);
|
|
buffer.writeFloatLE(Infinity, 4);
|
|
ASSERT.equal(0x7F, buffer[0]);
|
|
ASSERT.equal(0x80, buffer[1]);
|
|
ASSERT.equal(0x00, buffer[2]);
|
|
ASSERT.equal(0x00, buffer[3]);
|
|
ASSERT.equal(0x00, buffer[4]);
|
|
ASSERT.equal(0x00, buffer[5]);
|
|
ASSERT.equal(0x80, buffer[6]);
|
|
ASSERT.equal(0x7F, buffer[7]);
|
|
ASSERT.equal(Infinity, buffer.readFloatBE(0));
|
|
ASSERT.equal(Infinity, buffer.readFloatLE(4));
|
|
|
|
buffer.writeFloatBE(-Infinity, 0);
|
|
buffer.writeFloatLE(-Infinity, 4);
|
|
// Darwin ia32 does the other kind of NaN.
|
|
// Compiler bug. No one really cares.
|
|
ASSERT(0xFF === buffer[0] || 0x7F === buffer[0]);
|
|
ASSERT.equal(0x80, buffer[1]);
|
|
ASSERT.equal(0x00, buffer[2]);
|
|
ASSERT.equal(0x00, buffer[3]);
|
|
ASSERT.equal(0x00, buffer[4]);
|
|
ASSERT.equal(0x00, buffer[5]);
|
|
ASSERT.equal(0x80, buffer[6]);
|
|
ASSERT.equal(0xFF, buffer[7]);
|
|
ASSERT.equal(-Infinity, buffer.readFloatBE(0));
|
|
ASSERT.equal(-Infinity, buffer.readFloatLE(4));
|
|
|
|
buffer.writeFloatBE(NaN, 0);
|
|
buffer.writeFloatLE(NaN, 4);
|
|
// Darwin ia32 does the other kind of NaN.
|
|
// Compiler bug. No one really cares.
|
|
ASSERT(0x7F === buffer[0] || 0xFF === buffer[0]);
|
|
// mips processors use a slightly different NaN
|
|
ASSERT(0xC0 === buffer[1] || 0xBF === buffer[1]);
|
|
ASSERT(0x00 === buffer[2] || 0xFF === buffer[2]);
|
|
ASSERT(0x00 === buffer[3] || 0xFF === buffer[3]);
|
|
ASSERT(0x00 === buffer[4] || 0xFF === buffer[4]);
|
|
ASSERT(0x00 === buffer[5] || 0xFF === buffer[5]);
|
|
ASSERT(0xC0 === buffer[6] || 0xBF === buffer[6]);
|
|
// Darwin ia32 does the other kind of NaN.
|
|
// Compiler bug. No one really cares.
|
|
ASSERT(0x7F === buffer[7] || 0xFF === buffer[7]);
|
|
ASSERT.ok(isNaN(buffer.readFloatBE(0)));
|
|
ASSERT.ok(isNaN(buffer.readFloatLE(4)));
|
|
}
|
|
|
|
|
|
test(Buffer);
|