///<reference path="../../../../headers/common.d.ts" />

import {describe, beforeEach, it, sinon, expect, angularMocks} from '../../../../../test/lib/common';

import angular from 'angular';
import {GraphCtrl} from '../module';
import helpers from '../../../../../test/specs/helpers';

describe('GraphCtrl', function() {
  var ctx = new helpers.ControllerTestContext();

  beforeEach(angularMocks.module('grafana.services'));
  beforeEach(angularMocks.module('grafana.controllers'));

  beforeEach(ctx.providePhase());
  beforeEach(ctx.createPanelController(GraphCtrl));

  describe('get_data with 2 series', function() {
    beforeEach(function() {
      ctx.annotationsSrv.getAnnotations = sinon.stub().returns(ctx.$q.when([]));
      ctx.datasource.query = sinon.stub().returns(ctx.$q.when({
        data: [
          { target: 'test.cpu1', datapoints: [[1, 10]]},
          { target: 'test.cpu2', datapoints: [[1, 10]]}
        ]
      }));
      ctx.ctrl.render = sinon.spy();
      ctx.ctrl.refreshData(ctx.datasource);
      ctx.scope.$digest();
    });

    it('should send time series to render', function() {
      var data = ctx.ctrl.render.getCall(0).args[0];
      expect(data.length).to.be(2);
    });

    describe('get_data failure following success', function() {
      beforeEach(function() {
        ctx.datasource.query = sinon.stub().returns(ctx.$q.reject('Datasource Error'));
        ctx.ctrl.refreshData(ctx.datasource);
        ctx.scope.$digest();
      });

    });
  });
});