var network = require('../../src/network.js');
var expect = require('chai').expect;

describe('Network download tool', function() {
  var uri;

  if (typeof XMLHttpRequest === 'undefined') {
    // Node context
    uri = {
      valid: 'http://localhost:1234/package.json',
      invalid: 'booyah!',
      notFound: 'http://localhost:1234/this-isnt-real'
    }
  } else {
    // Browser context
    uri = {
      valid: '../package.json',
      invalid: 'asdf://booyah!',
      notFound: 'this-isnt-real'
    };
  }

  it('should throw an exception when a URI is not passed', function(done) {
    expect(function() {
      network.download(undefined, function(error, data) {});
    }).to.throwError;
    done();
  });

  it('should get an error when a non-existent path is specified', function(done) {
    network.download(uri.notFound, function(error, data) {
      expect(error).to.exist;
      expect(error.code).to.eql(404);
      expect(data).to.be.eql(null);
      done();
    });
  });

  if (typeof XMLHttpRequest === 'undefined') {
    it('in nodejs, should get an error when an invalid URI is specified', function(done) {
      network.download(uri.invalid, function(error, data) {
        expect(error).to.exist;
        expect(error.code).to.eql(null);
        expect(error.message).to.exist;
        expect(data).to.be.eql(null);
        done();
      });
    });
  } else {
    it('in a browser, should throw an error when an invalid URI is specified', function(done) {
      expect(function(){
        network.download(uri.invalid, function() {});
      }).to.throwError;
      done();
    });
  }

  it('should download a resource from the server', function(done) {
    network.download(uri.valid, function(error, data) {
      expect(error).not.to.exist;
      expect(data).to.exist;
      expect(data).to.have.length.above(0);
      done();
    });
  });
});