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node/test/simple/test-writedouble.js

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test: add missing copyright headers
13 years ago
// Copyright Joyent, Inc. and other Node contributors.
//
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to permit
// persons to whom the Software is furnished to do so, subject to the
// following conditions:
//
// The above copyright notice and this permission notice shall be included
// in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
// USE OR OTHER DEALINGS IN THE SOFTWARE.
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
*/
buffer: add .read*() and .write*() methods to SlowBuffer prototype Fixes #2138.
13 years ago
var SlowBuffer = process.binding('buffer').SlowBuffer;
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]);
buffer: floating point read/write improvements Improvements: * floating point operations are approx 4x's faster * Now write quiet NaN's * all read/write on floating point now done in C, so no more need for lib/buffer_ieee754.js * float values have more accurate min/max value checks * add additional benchmarks for buffers read/write * created benchmark/_bench_timer.js which is a simple library that can be included into any benchmark and provides an intelligent tracker for sync and async tests * add benchmarks for DataView set methods * add checks and tests to make sure offset is greater than 0
12 years ago
ASSERT.equal(0xF8, buffer[1]);
buffer: added support for writing NaN and Infinity to writeDoubleBE(), writeDoubleLE(), writeFloatBE() and writeFloatLE(). Fixes #3934.
12 years ago
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]);
buffer: floating point read/write improvements Improvements: * floating point operations are approx 4x's faster * Now write quiet NaN's * all read/write on floating point now done in C, so no more need for lib/buffer_ieee754.js * float values have more accurate min/max value checks * add additional benchmarks for buffers read/write * created benchmark/_bench_timer.js which is a simple library that can be included into any benchmark and provides an intelligent tracker for sync and async tests * add benchmarks for DataView set methods * add checks and tests to make sure offset is greater than 0
12 years ago
ASSERT.equal(0x00, buffer[7]);
ASSERT.equal(0x00, buffer[8]);
buffer: added support for writing NaN and Infinity to writeDoubleBE(), writeDoubleLE(), writeFloatBE() and writeFloatLE(). Fixes #3934.
12 years ago
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]);
buffer: floating point read/write improvements Improvements: * floating point operations are approx 4x's faster * Now write quiet NaN's * all read/write on floating point now done in C, so no more need for lib/buffer_ieee754.js * float values have more accurate min/max value checks * add additional benchmarks for buffers read/write * created benchmark/_bench_timer.js which is a simple library that can be included into any benchmark and provides an intelligent tracker for sync and async tests * add benchmarks for DataView set methods * add checks and tests to make sure offset is greater than 0
12 years ago
ASSERT.equal(0xF8, 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);
test(SlowBuffer);