49 lines
945 B
JavaScript
49 lines
945 B
JavaScript
var ieee754 = require('../')
|
|
var test = require('tape')
|
|
|
|
var EPSILON = 0.00001
|
|
|
|
test('read float', function (t) {
|
|
var val = 42.42
|
|
var buf = Buffer.alloc(4)
|
|
|
|
buf.writeFloatLE(val, 0)
|
|
var num = ieee754.read(buf, 0, true, 23, 4)
|
|
|
|
t.ok(Math.abs(num - val) < EPSILON)
|
|
t.end()
|
|
})
|
|
|
|
test('write float', function (t) {
|
|
var val = 42.42
|
|
var buf = Buffer.alloc(4)
|
|
|
|
ieee754.write(buf, val, 0, true, 23, 4)
|
|
var num = buf.readFloatLE(0)
|
|
|
|
t.ok(Math.abs(num - val) < EPSILON)
|
|
t.end()
|
|
})
|
|
|
|
test('read double', function (t) {
|
|
var value = 12345.123456789
|
|
var buf = Buffer.alloc(8)
|
|
|
|
buf.writeDoubleLE(value, 0)
|
|
var num = ieee754.read(buf, 0, true, 52, 8)
|
|
|
|
t.ok(Math.abs(num - value) < EPSILON)
|
|
t.end()
|
|
})
|
|
|
|
test('write double', function (t) {
|
|
var value = 12345.123456789
|
|
var buf = Buffer.alloc(8)
|
|
|
|
ieee754.write(buf, value, 0, true, 52, 8)
|
|
var num = buf.readDoubleLE(0)
|
|
|
|
t.ok(Math.abs(num - value) < EPSILON)
|
|
t.end()
|
|
})
|