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423 lines
16 KiB
JavaScript
423 lines
16 KiB
JavaScript
var expect = require('expect.js');
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var Package = require('../lib/core/Package.js');
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var UnitOfWork = require('../lib/core/UnitOfWork');
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describe('UnitOfWork', function () {
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describe('.enqueue', function () {
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it('return a promise', function () {
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var pkg = new Package('foo'),
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unitOfWork = new UnitOfWork(),
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promise;
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promise = unitOfWork.enqueue(pkg);
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expect(promise.then).to.be.a('function');
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});
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it('should resolve the promise with a callback that should be called once the package is done resolving', function (done) {
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var pkg = new Package('foo'),
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unitOfWork = new UnitOfWork();
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unitOfWork.enqueue(pkg)
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.then(function (cb) {
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expect(cb).to.be.a('function');
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cb();
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done();
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}, done);
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});
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it('should fire the "enqueue" event', function () {
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var pkg = new Package('foo'),
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unitOfWork = new UnitOfWork(),
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fired = false;
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unitOfWork.on('enqueue', function (pkg) {
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expect(pkg).to.be.an(Package);
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fired = true;
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});
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unitOfWork.enqueue(pkg);
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expect(fired).to.be(true);
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});
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it('should throw if the package is already queued', function () {
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var pkg = new Package('foo'),
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unitOfWork = new UnitOfWork();
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unitOfWork.enqueue(pkg);
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expect(function () {
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unitOfWork.enqueue(pkg);
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}).to.throwException(/already queued/);
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});
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it('should throw if the package is already being resolved', function (done) {
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var pkg = new Package('foo'),
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unitOfWork = new UnitOfWork();
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unitOfWork.enqueue(pkg);
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setTimeout(function () {
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expect(function () {
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unitOfWork.enqueue(pkg);
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}).to.throwException(/already being resolved/);
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done();
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}, 500);
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});
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});
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describe('.dequeue', function () {
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it('should dequeue a package', function (done) {
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var pkg = new Package('foo'),
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unitOfWork = new UnitOfWork(),
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promise,
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error,
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timeout;
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promise = unitOfWork.enqueue(pkg);
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unitOfWork.dequeue(pkg);
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error = function () {
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clearTimeout(timeout);
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done(new Error('Package was not dequeued'));
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};
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promise.then(error, error);
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timeout = setTimeout(done, 500);
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});
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it('should fire the "dequeue" event if the package was really dequeued', function () {
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var pkg = new Package('foo'),
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unitOfWork = new UnitOfWork(),
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fired = false;
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unitOfWork.on('dequeue', function () {
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fired = true;
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});
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unitOfWork.enqueue(pkg);
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unitOfWork.dequeue(pkg);
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expect(fired).to.be(true);
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});
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it('should not fire the "dequeue" event if the package is not queued', function () {
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var pkg = new Package('foo'),
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unitOfWork = new UnitOfWork(),
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fired = false;
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unitOfWork.on('dequeue', function () {
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fired = true;
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});
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unitOfWork.dequeue(pkg);
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expect(fired).to.be(false);
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});
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});
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describe('.getResolved()', function () {
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it('should always return a valid array/object', function () {
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var unitOfWork = new UnitOfWork();
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expect(unitOfWork.getResolved('foo')).to.eql([]);
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expect(unitOfWork.getResolved()).to.eql({});
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});
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it('should return resolved packages of a specific name', function (done) {
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var unitOfWork = new UnitOfWork(),
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pkg1 = new Package('foo', { name: 'foo' }),
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pkg2 = new Package('bar', { name: 'bar' }),
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pkg3 = new Package('foo', { name: 'foo', range: '~0.0.1' }),
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pkg4 = new Package('bar', { name: 'bar', range: '~0.0.1' }),
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arr;
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function ok(cb, time) {
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return function (cb) {
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setTimeout(cb, time);
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};
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}
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unitOfWork.enqueue(pkg1).then(ok(50));
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unitOfWork.enqueue(pkg2).then(ok(50));
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unitOfWork.enqueue(pkg3).then(ok(100));
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unitOfWork.enqueue(pkg4).then(ok(100));
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setTimeout(function () {
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arr = unitOfWork.getResolved('foo');
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expect(arr.length).to.be(2);
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expect(arr[0]).to.equal(pkg1);
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expect(arr[1]).to.equal(pkg3);
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arr = unitOfWork.getResolved('bar');
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expect(arr.length).to.be(2);
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expect(arr[0]).to.equal(pkg2);
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expect(arr[1]).to.equal(pkg4);
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done();
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}, 500);
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});
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it('should return all resolved packages', function (done) {
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var unitOfWork = new UnitOfWork({ failFast: false }),
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pkg1 = new Package('foo', { name: 'foo' }),
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pkg2 = new Package('bar', { name: 'bar' }),
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pkg3 = new Package('foo', { name: 'foo', range: '~0.0.1' }),
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pkg4 = new Package('bar', { name: 'bar', range: '~0.0.1' }),
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obj;
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function ok(cb, time) {
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return function (cb) {
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setTimeout(cb, time);
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};
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}
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unitOfWork.enqueue(pkg1).then(ok(50));
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unitOfWork.enqueue(pkg2).then(ok(50));
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unitOfWork.enqueue(pkg3).then(ok(100));
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unitOfWork.enqueue(pkg4).then(ok(100));
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setTimeout(function () {
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obj = unitOfWork.getResolved();
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expect(Object.keys(obj)).to.eql(['foo', 'bar']);
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expect(obj.foo).to.equal(unitOfWork.getResolved('foo'));
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expect(obj.bar).to.equal(unitOfWork.getResolved('bar'));
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done();
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}, 500);
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});
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});
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describe('.getUnresolved()', function () {
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it('should always return a valid array/object', function () {
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var unitOfWork = new UnitOfWork();
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expect(unitOfWork.getUnresolved('foo')).to.eql([]);
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expect(unitOfWork.getUnresolved()).to.eql({});
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});
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it('should return unresolved packages of a specific name', function (done) {
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var unitOfWork = new UnitOfWork({ failFast: false }),
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pkg1 = new Package('foo', { name: 'foo' }),
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pkg2 = new Package('bar', { name: 'bar' }),
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pkg3 = new Package('foo', { name: 'foo', range: '~0.0.1' }),
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pkg4 = new Package('bar', { name: 'bar', range: '~0.0.1' }),
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arr;
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function error(cb, time) {
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return function (cb) {
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setTimeout(cb.bind(cb, new Error('some error')), time);
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};
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}
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unitOfWork.enqueue(pkg1).then(error(50));
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unitOfWork.enqueue(pkg2).then(error(50));
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unitOfWork.enqueue(pkg3).then(error(100));
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unitOfWork.enqueue(pkg4).then(error(100));
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setTimeout(function () {
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arr = unitOfWork.getUnresolved('foo');
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expect(arr.length).to.be(2);
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expect(arr[0]).to.equal(pkg1);
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expect(arr[1]).to.equal(pkg3);
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arr = unitOfWork.getUnresolved('bar');
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expect(arr.length).to.be(2);
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expect(arr[0]).to.equal(pkg2);
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expect(arr[1]).to.equal(pkg4);
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done();
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}, 500);
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});
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it('should return all unresolved packages', function (done) {
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var unitOfWork = new UnitOfWork({ failFast: false }),
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pkg1 = new Package('foo', { name: 'foo' }),
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pkg2 = new Package('bar', { name: 'bar' }),
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pkg3 = new Package('foo', { name: 'foo', range: '~0.0.1' }),
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pkg4 = new Package('bar', { name: 'bar', range: '~0.0.1' }),
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obj;
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function error(cb, time) {
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return function (cb) {
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setTimeout(cb.bind(cb, new Error('some error')), time);
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};
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}
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unitOfWork.enqueue(pkg1).then(error(50));
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unitOfWork.enqueue(pkg2).then(error(50));
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unitOfWork.enqueue(pkg3).then(error(100));
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unitOfWork.enqueue(pkg4).then(error(100));
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setTimeout(function () {
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obj = unitOfWork.getUnresolved();
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expect(Object.keys(obj)).to.eql(['foo', 'bar']);
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expect(obj.foo).to.equal(unitOfWork.getUnresolved('foo'));
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expect(obj.bar).to.equal(unitOfWork.getUnresolved('bar'));
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done();
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}, 500);
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});
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});
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describe('general stuff', function () {
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it('should let only "maxConcurrent" packages to resolve at the same time', function (done) {
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var unitOfWork = new UnitOfWork({ maxConcurrent: 2 }),
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nrBeingResolved = 0,
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pkg1 = new Package('foo'),
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pkg2 = new Package('bar'),
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pkg3 = new Package('baz'),
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timeout;
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unitOfWork.enqueue(pkg1).then(function () { nrBeingResolved++; });
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unitOfWork.enqueue(pkg2).then(function () { nrBeingResolved++; });
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unitOfWork.enqueue(pkg3).then(function () {
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clearTimeout(timeout);
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done(new Error('Maximum concurrent packages not being accounted correctly'));
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});
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timeout = setTimeout(function () {
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expect(nrBeingResolved).to.equal(2);
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done();
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}, 500);
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});
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it('should let every package to resolve if the "maxConcurrent" option is less or equal than 0', function (done) {
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var unitOfWork = new UnitOfWork({ maxConcurrent: 0 }),
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unitOfWork2 = new UnitOfWork({ maxConcurrent: -1 }),
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nrBeingResolved = 0,
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pkg1 = new Package('foo1'),
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pkg2 = new Package('bar1'),
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pkg3 = new Package('baz1'),
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pkg4 = new Package('foo2'),
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pkg5 = new Package('bar2'),
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pkg6 = new Package('baz2'),
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timeout;
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function increment() {
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nrBeingResolved++;
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}
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unitOfWork.enqueue(pkg1).then(increment);
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unitOfWork.enqueue(pkg2).then(increment);
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unitOfWork.enqueue(pkg3).then(increment);
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unitOfWork.enqueue(pkg4).then(increment);
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unitOfWork.enqueue(pkg5).then(increment);
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unitOfWork.enqueue(pkg6).then(increment);
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unitOfWork2.enqueue(pkg1).then(increment);
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unitOfWork2.enqueue(pkg2).then(increment);
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unitOfWork2.enqueue(pkg3).then(increment);
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unitOfWork2.enqueue(pkg4).then(increment);
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unitOfWork2.enqueue(pkg5).then(increment);
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unitOfWork2.enqueue(pkg6).then(increment);
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timeout = setTimeout(function () {
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expect(nrBeingResolved).to.equal(12);
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done();
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}, 500);
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});
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it('should prevent packages with same endpoint from being resolved at the same time', function (done) {
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var unitOfWork = new UnitOfWork({ maxConcurrent: 2 }),
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resolving = [],
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pkg1 = new Package('foo'),
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pkg2 = new Package('foo'),
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pkg3 = new Package('baz');
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unitOfWork.enqueue(pkg1).then(function () { resolving.push('foo'); });
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unitOfWork.enqueue(pkg2).then(function () { resolving.push('foo'); });
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unitOfWork.enqueue(pkg3).then(function () { resolving.push('baz'); });
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setTimeout(function () {
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expect(resolving).to.eql(['foo', 'baz']);
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done();
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}, 500);
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});
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it('should reject promises when a package with same endpoint and range was already resolved', function (done) {
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var unitOfWork = new UnitOfWork(),
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pkg1 = new Package('foo', { range: '~0.1.1' }),
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pkg2 = new Package('foo', { range: '~0.1.1' });
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unitOfWork.enqueue(pkg1).then(function (cb) {
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setTimeout(cb, 200);
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});
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unitOfWork.enqueue(pkg2).then(function () {
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done(new Error('Should have detected a duplicate'));
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}, function (err) {
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expect(err.code).to.equal('EDUPL');
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expect(err.pkg).to.equal(pkg1);
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done();
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});
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});
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it('should fire "dequeue", "before_resolve", "resolve" and "unresolve" during the resolve process', function (done) {
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var unitOfWork = new UnitOfWork(),
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events = [],
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pkg1 = new Package('foo'),
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pkg2 = new Package('bar');
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unitOfWork.on('dequeue', function (pkg) {
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events.push('dequeue', pkg.getEndpoint());
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});
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unitOfWork.on('before_resolve', function (pkg) {
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events.push('before_resolve', pkg.getEndpoint());
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});
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unitOfWork.on('resolve', function (pkg) {
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events.push('resolve', pkg.getEndpoint());
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});
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unitOfWork.on('unresolve', function (pkg) {
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events.push('unresolve', pkg.getEndpoint());
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});
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unitOfWork.enqueue(pkg1).then(function (cb) {
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setTimeout(cb, 100);
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});
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unitOfWork.enqueue(pkg2).then(function (cb) {
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setTimeout(cb.bind(cb, new Error('some error')), 200);
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});
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setTimeout(function () {
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expect(events).to.eql([
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'dequeue', pkg1.getEndpoint(),
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'before_resolve', pkg1.getEndpoint(),
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'dequeue', pkg2.getEndpoint(),
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'before_resolve', pkg2.getEndpoint(),
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'resolve', pkg1.getEndpoint(),
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'unresolve', pkg2.getEndpoint()
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]);
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done();
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}, 500);
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});
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it('should fail fast by default', function (done) {
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var unitOfWork = new UnitOfWork({ maxConcurrent: 1 }),
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pkg1 = new Package('foo', { name: 'foo' }),
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pkg2 = new Package('bar', { name: 'bar' });
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unitOfWork.enqueue(pkg1).then(function (cb) {
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setTimeout(cb.bind(cb, new Error('some error')), 200);
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});
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unitOfWork.enqueue(pkg2).then(function () {
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done(new Error('Should have failed fast'));
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}, function (err) {
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expect(err.code).to.equal('EFFAST');
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done();
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});
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});
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it('should not fail fast if the "failFast" option is false', function (done) {
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var unitOfWork = new UnitOfWork({ maxConcurrent: 1, failFast: false }),
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pkg1 = new Package('foo', { name: 'foo' }),
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pkg2 = new Package('bar', { name: 'bar' });
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unitOfWork.enqueue(pkg1).then(function (cb) {
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setTimeout(cb.bind(cb, new Error('some error')), 200);
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});
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unitOfWork.enqueue(pkg2).then(function () {
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done();
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}, function (err) {
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done(err.code === 'EFFAST' ? new Error('Should not have failed fast') : null);
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});
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});
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});
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}); |