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node/test/parallel/test-writedouble.js

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test: enable linting for tests 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>
10 years ago
'use strict';
Add reading/writing of floats and doubles from/to buffers Code for readIEEE754/writeIEEE754 is from jspack: http://code.google.com/p/jspack/
14 years ago
/*
* Tests to verify we're writing doubles correctly
*/
test: include common.js in all tests
13 years ago
var common = require('../common');
Add reading/writing of floats and doubles from/to buffers Code for readIEEE754/writeIEEE754 is from jspack: http://code.google.com/p/jspack/
14 years ago
var ASSERT = require('assert');
buffer: add .read*() and .write*() methods to SlowBuffer prototype Fixes #2138.
13 years ago
function test(clazz) {
var buffer = new clazz(16);
Incorporate endianness into buffer.read* function names instead of passing in a boolean flag
14 years ago
buffer.writeDoubleBE(2.225073858507201e-308, 0);
buffer.writeDoubleLE(2.225073858507201e-308, 8);
Add reading/writing of floats and doubles from/to buffers Code for readIEEE754/writeIEEE754 is from jspack: http://code.google.com/p/jspack/
14 years ago
ASSERT.equal(0x00, buffer[0]);
ASSERT.equal(0x0f, buffer[1]);
ASSERT.equal(0xff, buffer[2]);
ASSERT.equal(0xff, buffer[3]);
ASSERT.equal(0xff, buffer[4]);
ASSERT.equal(0xff, buffer[5]);
ASSERT.equal(0xff, buffer[6]);
ASSERT.equal(0xff, buffer[7]);
ASSERT.equal(0xff, buffer[8]);
ASSERT.equal(0xff, buffer[9]);
ASSERT.equal(0xff, buffer[10]);
ASSERT.equal(0xff, buffer[11]);
ASSERT.equal(0xff, buffer[12]);
ASSERT.equal(0xff, buffer[13]);
ASSERT.equal(0x0f, buffer[14]);
ASSERT.equal(0x00, buffer[15]);
Incorporate endianness into buffer.read* function names instead of passing in a boolean flag
14 years ago
buffer.writeDoubleBE(1.0000000000000004, 0);
buffer.writeDoubleLE(1.0000000000000004, 8);
Add reading/writing of floats and doubles from/to buffers Code for readIEEE754/writeIEEE754 is from jspack: http://code.google.com/p/jspack/
14 years ago
ASSERT.equal(0x3f, buffer[0]);
ASSERT.equal(0xf0, 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(0x02, buffer[7]);
ASSERT.equal(0x02, buffer[8]);
ASSERT.equal(0x00, buffer[9]);
ASSERT.equal(0x00, buffer[10]);
ASSERT.equal(0x00, buffer[11]);
ASSERT.equal(0x00, buffer[12]);
ASSERT.equal(0x00, buffer[13]);
ASSERT.equal(0xf0, buffer[14]);
ASSERT.equal(0x3f, buffer[15]);
Incorporate endianness into buffer.read* function names instead of passing in a boolean flag
14 years ago
buffer.writeDoubleBE(-2, 0);
buffer.writeDoubleLE(-2, 8);
Add reading/writing of floats and doubles from/to buffers Code for readIEEE754/writeIEEE754 is from jspack: http://code.google.com/p/jspack/
14 years ago
ASSERT.equal(0xc0, 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(0x00, buffer[7]);
ASSERT.equal(0x00, buffer[8]);
ASSERT.equal(0x00, buffer[9]);
ASSERT.equal(0x00, buffer[10]);
ASSERT.equal(0x00, buffer[11]);
ASSERT.equal(0x00, buffer[12]);
ASSERT.equal(0x00, buffer[13]);
ASSERT.equal(0x00, buffer[14]);
ASSERT.equal(0xc0, buffer[15]);
Incorporate endianness into buffer.read* function names instead of passing in a boolean flag
14 years ago
buffer.writeDoubleBE(1.7976931348623157e+308, 0);
buffer.writeDoubleLE(1.7976931348623157e+308, 8);
Add reading/writing of floats and doubles from/to buffers Code for readIEEE754/writeIEEE754 is from jspack: http://code.google.com/p/jspack/
14 years ago
ASSERT.equal(0x7f, buffer[0]);
ASSERT.equal(0xef, buffer[1]);
ASSERT.equal(0xff, buffer[2]);
ASSERT.equal(0xff, buffer[3]);
ASSERT.equal(0xff, buffer[4]);
ASSERT.equal(0xff, buffer[5]);
ASSERT.equal(0xff, buffer[6]);
ASSERT.equal(0xff, buffer[7]);
ASSERT.equal(0xff, buffer[8]);
ASSERT.equal(0xff, buffer[9]);
ASSERT.equal(0xff, buffer[10]);
ASSERT.equal(0xff, buffer[11]);
ASSERT.equal(0xff, buffer[12]);
ASSERT.equal(0xff, buffer[13]);
ASSERT.equal(0xef, buffer[14]);
ASSERT.equal(0x7f, buffer[15]);
Fixed a lot of jslint errors. Fixes #1831
13 years ago
buffer.writeDoubleBE(0 * -1, 0);
buffer.writeDoubleLE(0 * -1, 8);
Add reading/writing of floats and doubles from/to buffers Code for readIEEE754/writeIEEE754 is from jspack: http://code.google.com/p/jspack/
14 years ago
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(0x00, buffer[7]);
ASSERT.equal(0x00, buffer[8]);
ASSERT.equal(0x00, buffer[9]);
ASSERT.equal(0x00, buffer[10]);
ASSERT.equal(0x00, buffer[11]);
ASSERT.equal(0x00, buffer[12]);
ASSERT.equal(0x00, buffer[13]);
ASSERT.equal(0x00, buffer[14]);
ASSERT.equal(0x80, buffer[15]);
buffer: added support for writing NaN and Infinity to writeDoubleBE(), writeDoubleLE(), writeFloatBE() and writeFloatLE(). Fixes #3934.
12 years ago
buffer.writeDoubleBE(Infinity, 0);
buffer.writeDoubleLE(Infinity, 8);
ASSERT.equal(0x7F, buffer[0]);
ASSERT.equal(0xF0, 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(0x00, buffer[7]);
ASSERT.equal(0x00, buffer[8]);
ASSERT.equal(0x00, buffer[9]);
ASSERT.equal(0x00, buffer[10]);
ASSERT.equal(0x00, buffer[11]);
ASSERT.equal(0x00, buffer[12]);
ASSERT.equal(0x00, buffer[13]);
ASSERT.equal(0xF0, buffer[14]);
ASSERT.equal(0x7F, buffer[15]);
ASSERT.equal(Infinity, buffer.readDoubleBE(0));
ASSERT.equal(Infinity, buffer.readDoubleLE(8));
buffer.writeDoubleBE(-Infinity, 0);
buffer.writeDoubleLE(-Infinity, 8);
ASSERT.equal(0xFF, buffer[0]);
ASSERT.equal(0xF0, 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(0x00, buffer[7]);
ASSERT.equal(0x00, buffer[8]);
ASSERT.equal(0x00, buffer[9]);
ASSERT.equal(0x00, buffer[10]);
ASSERT.equal(0x00, buffer[11]);
ASSERT.equal(0x00, buffer[12]);
ASSERT.equal(0x00, buffer[13]);
ASSERT.equal(0xF0, buffer[14]);
ASSERT.equal(0xFF, buffer[15]);
ASSERT.equal(-Infinity, buffer.readDoubleBE(0));
ASSERT.equal(-Infinity, buffer.readDoubleLE(8));
buffer.writeDoubleBE(NaN, 0);
buffer.writeDoubleLE(NaN, 8);
test: Accept either kind of NaN A llvm/clang bug on Darwin ia32 makes these tests fail 100% of the time. Since no one really seems to mind overly much, and we can't reasonably fix this in node anyway, just accept both types of NaN for now.
12 years ago
// Darwin ia32 does the other kind of NaN.
// Compiler bug. No one really cares.
ASSERT(0x7F === buffer[0] || 0xFF === buffer[0]);
test: fix floating point NaN tests on mips MIPS machines use a slightly different format for NaNs (still perfectly valid though). This patch adjusts the buffer testcases to allow for this. See https://en.wikipedia.org/wiki/NaN#Encoding for some more info. Based on patch applied to debian by Jérémy Lal <kapouer@melix.org> Reviewed-By: Fedor Indutny <fedor@indutny.com> PR-URL: https://github.com/joyent/node/pull/8793
10 years ago
// mips processors use a slightly different NaN
ASSERT(0xF8 === buffer[1] || 0xF7 === 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(0x00 === buffer[6] || 0xFF === buffer[6]);
ASSERT(0x00 === buffer[7] || 0xFF === buffer[7]);
ASSERT(0x00 === buffer[8] || 0xFF === buffer[8]);
ASSERT(0x00 === buffer[9] || 0xFF === buffer[9]);
ASSERT(0x00 === buffer[10] || 0xFF === buffer[10]);
ASSERT(0x00 === buffer[11] || 0xFF === buffer[11]);
ASSERT(0x00 === buffer[12] || 0xFF === buffer[12]);
ASSERT(0x00 === buffer[13] || 0xFF === buffer[13]);
ASSERT(0xF8 === buffer[14] || 0xF7 === buffer[14]);
test: Accept either kind of NaN A llvm/clang bug on Darwin ia32 makes these tests fail 100% of the time. Since no one really seems to mind overly much, and we can't reasonably fix this in node anyway, just accept both types of NaN for now.
12 years ago
// Darwin ia32 does the other kind of NaN.
// Compiler bug. No one really cares.
ASSERT(0x7F === buffer[15] || 0xFF === buffer[15]);
buffer: added support for writing NaN and Infinity to writeDoubleBE(), writeDoubleLE(), writeFloatBE() and writeFloatLE(). Fixes #3934.
12 years ago
ASSERT.ok(isNaN(buffer.readDoubleBE(0)));
ASSERT.ok(isNaN(buffer.readDoubleLE(8)));
Add reading/writing of floats and doubles from/to buffers Code for readIEEE754/writeIEEE754 is from jspack: http://code.google.com/p/jspack/
14 years ago
}
buffer: add .read*() and .write*() methods to SlowBuffer prototype Fixes #2138.
13 years ago
test(Buffer);