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rate service + tests

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Ivan Socolsky 2014-11-05 12:57:21 -03:00
commit 476f6395e5
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test/RateService.js Normal file
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'use strict';
var RateService = copay.RateService;
describe('RateService model', function() {
before(function() {
sinon.stub(RateService.prototype, '_fetchCurrencies').returns();
});
after(function() {});
it('should create an instance', function() {
var rs = new RateService();
should.exist(rs);
});
describe('#toFiat', function() {
it('should throw error when unavailable', function() {
var rs = new RateService();
rs.isAvailable = sinon.stub().returns(false);
(function() {
rs.toFiat(10000, 'USD');
}).should.throw;
});
it('should return current valuation', function() {
var rs = new RateService();
rs.isAvailable = sinon.stub().returns(true);
var getRateStub = sinon.stub(rs, '_getRate')
getRateStub.withArgs('USD').returns(300.00);
getRateStub.withArgs('EUR').returns(250.00);
var params = [{
satoshis: 0,
code: 'USD',
expected: '0.00'
}, {
satoshis: 1e8,
code: 'USD',
expected: '300.00'
}, {
satoshis: 10000,
code: 'USD',
expected: '0.03'
}, {
satoshis: 20000,
code: 'EUR',
expected: '0.05'
}, ];
_.each(params, function(p) {
rs.toFiat(p.satoshis, p.code).toFixed(2).should.equal(p.expected);
});
});
});
describe('#toFiatHistoric', function() {
it('should return historic valuation', function() {
var rs = new RateService();
rs.isAvailable = sinon.stub().returns(true);
var today = Date.now();
var yesterday = today - 24 * 3600;
var getHistoricalRateStub = sinon.stub(rs, '_getHistoricRate');
getHistoricalRateStub.withArgs('USD', today).yields(null, 300.00);
getHistoricalRateStub.withArgs('USD', yesterday).yields(null, 250.00);
getHistoricalRateStub.withArgs('EUR', today).yields(null, 250.00);
getHistoricalRateStub.withArgs('EUR', yesterday).yields(null, 200.00);
var params = [{
satoshis: 0,
code: 'USD',
date: today,
expected: '0.00'
}, {
satoshis: 1e8,
code: 'USD',
date: today,
expected: '300.00'
}, {
satoshis: 10000,
code: 'USD',
date: today,
expected: '0.03'
}, {
satoshis: 0,
code: 'USD',
date: today,
expected: '0.00'
}, {
satoshis: 1e8,
code: 'USD',
date: today,
expected: '300.00'
}, {
satoshis: 10000,
code: 'USD',
date: today,
expected: '0.03'
}, {
satoshis: 20000,
code: 'EUR',
date: today,
expected: '0.05'
}, {
satoshis: 20000,
code: 'EUR',
date: yesterday,
expected: '0.04'
}, ];
_.each(params, function(p) {
rs.toFiatHistoric(p.satoshis, p.code, p.date, function(err, rate) {
rate.toFixed(2).should.equal(p.expected);
});
});
});
});
describe('#fromFiat', function() {
it('should throw error when unavailable', function() {
var rs = new RateService();
rs.isAvailable = sinon.stub().returns(false);
(function() {
rs.fromFiat(300, 'USD');
}).should.throw;
});
it('should return current valuation', function() {
var rs = new RateService();
rs.isAvailable = sinon.stub().returns(true);
var getRateStub = sinon.stub(rs, '_getRate')
getRateStub.withArgs('USD').returns(300.00);
getRateStub.withArgs('EUR').returns(250.00);
var params = [{
amount: 0,
code: 'USD',
expected: 0
}, {
amount: 300.00,
code: 'USD',
expected: 1e8
}, {
amount: 600.00,
code: 'USD',
expected: 2e8
}, {
amount: 250.00,
code: 'EUR',
expected: 1e8
}, ];
_.each(params, function(p) {
rs.fromFiat(p.amount, p.code).should.equal(p.expected);
});
});
});
describe('#listAlternatives', function() {
it('should throw error when unavailable', function() {
var rs = new RateService();
rs.isAvailable = sinon.stub().returns(false);
(function() {
rs.listAlternatives();
}).should.throw;
});
it('should return list of available currencies', function() {
var rs = new RateService();
rs.isAvailable = sinon.stub().returns(true);
sinon.stub(rs, '_getAlternatives').returns([{
name: 'United States Dollar',
isoCode: 'USD',
rate: 300.00,
}, {
name: 'European Union Euro',
isoCode: 'EUR',
rate: 250.00,
}, ])
var list = rs.listAlternatives();
list.should.exist;
list.length.should.equal(2);
});
});
});