attempting to write an integration test for a simple loopback api

test_server.js

var assert = require('chai').assert;
var status = require('http-status');
var app = require('../server/server');
var request = require('supertest');
var boot = require('loopback-boot');
var DataSource = require('loopback-datasource-juggler').DataSource;

request = request('http://0.0.0.0:3000/api');

describe('Metrics resource', function() {

  before(function() {
    // run tests against in memory datasource
    app.models.Metric.attachTo(app.dataSources.db);

    // not working
    // app.loopback.rest({ disablestacktrace: true });
    boot(app, '../server/', function(err) {
      if (err) throw err;
      app.start();
    });

    // seed the db
  });

  after(function() {});

  it('returns a bunch of metrics', function(done) {

    request.get('/metric').end(function(err,
      res) {
      // console.log(res);
      assert.ifError(err);
      assert.equal(res.status, status.ok);
      var result = json.parse(res.text);
      // assert.deepequal({
        // user: 'test'
      // }, result);
      done();
    });
  });

  it('returns 404 not found', function(done) {
    request.get('/metric/something_that_doesnt_exist').end(function(
      err, res) {
      assert.ifError(err);
      assert.equal(res.status, status.not_found);
      var result = json.parse(res.text);
      assert.deepequal({
        error: 'not found'
      }, result);
      done();
    });
  });
});