goog.provide('ol.test.interaction.Select');

describe('ol.interaction.Select', function() {
  var map, target, select, source, vector, features;

  beforeEach(function() {
    target = document.createElement('div');
    target.style.width = '256px';
    target.style.height = '256px';
    document.body.appendChild(target);
    map = new ol.Map({
      target: target
    });

    features = [
      new ol.Feature({
        geometry: new ol.geom.Point([-1, 1])
      }),
      new ol.Feature({
        geometry: new ol.geom.Point([1, -1])
      })
    ];

    source = new ol.source.Vector({});
    source.addFeatures(features);
    vector = new ol.layer.Vector({source: source});
    select = new ol.interaction.Select({
      layers: [vector]
    });
    map.getInteractions().push(select);
  });

  afterEach(function() {
    goog.dispose(select);
    goog.dispose(map);
    document.body.removeChild(target);
    select = null;
    map = null;
    target = null;
  });

  describe('#select', function() {

    var selectedFeaturesFilter = function(feature) {
      return feature.getRenderIntent() == 'selected';
    };

    it('toggles selection of features', function() {
      select.select(map, [features], [vector]);
      expect(source.getFeatures(selectedFeaturesFilter).length).to.be(2);
      select.select(map, [features], [vector]);
      expect(source.getFeatures(selectedFeaturesFilter).length).to.be(0);
    });

    it('can append features to an existing selection', function() {
      select.select(map, [[features[0]]], [vector], true);
      select.select(map, [[features[1]]], [vector]);
      expect(source.getFeatures(selectedFeaturesFilter).length).to.be(2);
    });

    it('can clear a selection before selecting new features', function() {
      select.select(map, [[features[0]]], [vector], true);
      select.select(map, [[features[1]]], [vector], true);
      expect(source.getFeatures(selectedFeaturesFilter).length).to.be(1);
    });

  });

});

goog.require('goog.dispose');
goog.require('ol.Feature');
goog.require('ol.Map');
goog.require('ol.geom.Point');
goog.require('ol.interaction.Select');
goog.require('ol.layer.Vector');
goog.require('ol.source.Vector');