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Copy pathbit_string.spec.js
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56 lines (44 loc) · 1.94 KB
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var Erlang = require('../lib/erlang');
var BitString = require('../lib/bit_string');
var Kernel = require('../lib/kernel');
var expect = require('chai').expect;
describe('BitString', function(){
describe('creation', function(){
it('create properly', function(){
let bs = Erlang.bitstring(BitString.integer(1));
expect(Kernel.match__qmark__(bs.value(), [1])).to.equal(true);
bs = Erlang.bitstring(BitString.binary("foo"));
expect(Kernel.match__qmark__(bs.value(), [102, 111, 111])).to.equal(true);
bs = Erlang.bitstring(BitString.integer(0), BitString.binary("foo"));
expect(Kernel.match__qmark__(bs.value(), [0, 102, 111, 111])).to.equal(true);
bs = Erlang.bitstring(BitString.float(3.14));
expect(Kernel.match__qmark__(bs.value(), [64, 9, 30, 184, 81, 235, 133, 31])).to.equal(true);
bs = Erlang.bitstring(BitString.signed(BitString.integer(-100)));
expect(Kernel.match__qmark__(bs.value(), [156])).to.equal(true);
})
})
describe('UTF conversions', function(){
it('toUTF8Array', function(){
let bs = BitString.toUTF8Array("fo≈");
expect(Kernel.match__qmark__(bs, [102, 111, 226, 137, 136])).to.equal(true);
})
it('toUTF16Array', function(){
let bs = BitString.toUTF16Array("fo≈");
expect(Kernel.match__qmark__(bs, [0, 102, 0, 111, 34, 72])).to.equal(true);
})
it('toUTF32Array', function(){
let bs = BitString.toUTF32Array("fo≈");
expect(Kernel.match__qmark__(bs, [0, 0, 0, 102, 0, 0, 0, 111, 0, 0, 34, 72])).to.equal(true);
})
})
describe('Float conversions', function(){
it('float32ToBytes', function(){
let bs = BitString.float32ToBytes(3.14);
expect(Kernel.match__qmark__(bs, [64, 72, 245, 195])).to.equal(true);
})
it('float64ToBytes', function(){
let bs = BitString.float64ToBytes(3.14);
expect(Kernel.match__qmark__(bs, [64, 9, 30, 184, 81, 235, 133, 31])).to.equal(true);
})
})
})