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381
static/leafletCluster/spec/suites/spiderfySpec.js
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381
static/leafletCluster/spec/suites/spiderfySpec.js
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describe('spiderfy', function () {
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/**
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* Avoid as much as possible creating and destroying objects for each test.
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* Instead, try re-using them, except for the ones under test of course.
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* PhantomJS does not perform garbage collection for the life of the page,
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* i.e. during the entire test process (Karma runs all tests in a single page).
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* http://stackoverflow.com/questions/27239708/how-to-get-around-memory-error-with-karma-phantomjs
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*
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* The `beforeEach` and `afterEach do not seem to cause much issue.
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* => they can still be used to initialize some setup between each test.
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* Using them keeps a readable spec/index.
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*
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* But refrain from re-creating div and map every time. Re-use those objects.
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*/
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/////////////////////////////
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// SETUP FOR EACH TEST
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/////////////////////////////
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beforeEach(function () {
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clock = sinon.useFakeTimers();
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});
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afterEach(function () {
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if (group instanceof L.MarkerClusterGroup) {
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group.removeLayers(group.getLayers());
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map.removeLayer(group);
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}
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// group must be thrown away since we are testing it with a potentially
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// different configuration at each test.
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group = null;
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clock.restore();
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clock = null;
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});
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/////////////////////////////
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// PREPARATION CODE
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/////////////////////////////
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var div, map, group, clock;
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div = document.createElement('div');
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div.style.width = '200px';
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div.style.height = '200px';
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document.body.appendChild(div);
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map = L.map(div, { maxZoom: 18 });
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// Corresponds to zoom level 8 for the above div dimensions.
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map.fitBounds(new L.LatLngBounds([
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[1, 1],
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[2, 2]
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]));
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/////////////////////////////
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// TESTS
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/////////////////////////////
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it('Spiderfies 2 Markers', function () {
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group = new L.MarkerClusterGroup();
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var marker = new L.Marker([1.5, 1.5]);
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var marker2 = new L.Marker([1.5, 1.5]);
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group.addLayer(marker);
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group.addLayer(marker2);
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map.addLayer(group);
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marker.__parent.spiderfy();
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expect(marker._icon.parentNode).to.be(map._panes.markerPane);
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expect(marker2._icon.parentNode).to.be(map._panes.markerPane);
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});
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it('Spiderfies 2 CircleMarkers', function () {
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group = new L.MarkerClusterGroup();
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var marker = new L.CircleMarker([1.5, 1.5]);
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var marker2 = new L.CircleMarker([1.5, 1.5]);
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group.addLayer(marker);
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group.addLayer(marker2);
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map.addLayer(group);
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marker.__parent.spiderfy();
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// Leaflet 1.0.0 now uses an intermediate L.Renderer.
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// marker > _path > _rootGroup (g) > _container (svg) > pane (div)
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expect(marker._path.parentNode.parentNode.parentNode).to.be(map.getPane('overlayPane'));
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expect(marker2._path.parentNode.parentNode.parentNode).to.be(map.getPane('overlayPane'));
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});
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it('Spiderfies 2 Circles', function () {
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group = new L.MarkerClusterGroup();
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var marker = new L.Circle([1.5, 1.5], 10);
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var marker2 = new L.Circle([1.5, 1.5], 10);
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group.addLayer(marker);
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group.addLayer(marker2);
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map.addLayer(group);
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marker.__parent.spiderfy();
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expect(marker._path.parentNode.parentNode.parentNode).to.be(map.getPane('overlayPane'));
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expect(marker2._path.parentNode.parentNode.parentNode).to.be(map.getPane('overlayPane'));
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});
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it('Spiderfies at current zoom if all child markers are at the exact same position', function () {
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group = new L.MarkerClusterGroup();
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var marker = new L.Marker([1.5, 1.5]);
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var marker2 = new L.Marker([1.5, 1.5]);
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group.addLayers([marker, marker2]);
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map.addLayer(group);
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// Get the appropriate cluster.
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var cluster = marker.__parent,
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zoom = map.getZoom();
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while (cluster._zoom !== zoom) {
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cluster = cluster.__parent;
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}
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expect(zoom).to.be.lessThan(10);
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cluster.fireEvent('click', null, true);
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clock.tick(1000);
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expect(map.getZoom()).to.equal(zoom);
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expect(marker._icon.parentNode).to.be(map._panes.markerPane);
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expect(marker2._icon.parentNode).to.be(map._panes.markerPane);
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});
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it('Spiderfies at current zoom if all child markers are still within a single cluster at map maxZoom', function () {
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group = new L.MarkerClusterGroup();
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var marker = new L.Marker([1.5, 1.50001]);
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var marker2 = new L.Marker([1.5, 1.5]);
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group.addLayers([marker, marker2]);
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map.addLayer(group);
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expect(marker.__parent._zoom).to.equal(18);
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// Get the appropriate cluster.
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var cluster = marker.__parent,
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zoom = map.getZoom();
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while (cluster._zoom !== zoom) {
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cluster = cluster.__parent;
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}
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expect(zoom).to.be.lessThan(10);
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cluster.fireEvent('click', null, true);
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clock.tick(1000);
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expect(map.getZoom()).to.equal(zoom);
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expect(marker._icon.parentNode).to.be(map._panes.markerPane);
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expect(marker2._icon.parentNode).to.be(map._panes.markerPane);
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});
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it('removes all markers and spider legs when group is removed from map', function () {
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group = new L.MarkerClusterGroup();
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var marker = new L.Marker([1.5, 1.5]);
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var marker2 = new L.Marker([1.5, 1.5]);
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group.addLayers([marker, marker2]);
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map.addLayer(group);
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marker.__parent.spiderfy();
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expect(map._panes.markerPane.childNodes.length).to.be(3); // The 2 markers + semi-transparent cluster.
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expect(map.getPane('overlayPane').firstChild.firstChild.childNodes.length).to.be(2); // The 2 spider legs.
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});
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it('adds then removes class "leaflet-cluster-anim" from mapPane on spiderfy', function () {
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group = new L.MarkerClusterGroup();
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var marker = new L.Marker([1.5, 1.5]);
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var marker2 = new L.Marker([1.5, 1.5]);
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group.addLayers([marker, marker2]);
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map.addLayer(group);
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marker.__parent.spiderfy();
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expect(map._panes.mapPane.className).to.contain('leaflet-cluster-anim');
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clock.tick(1000);
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expect(map._panes.mapPane.className).to.not.contain('leaflet-cluster-anim');
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});
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it('adds then removes class "leaflet-cluster-anim" from mapPane on unspiderfy', function () {
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group = new L.MarkerClusterGroup();
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var marker = new L.Marker([1.5, 1.5]);
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var marker2 = new L.Marker([1.5, 1.5]);
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group.addLayers([marker, marker2]);
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map.addLayer(group);
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marker.__parent.spiderfy();
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clock.tick(1000);
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marker.__parent.unspiderfy();
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expect(map._panes.mapPane.className).to.contain('leaflet-cluster-anim');
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clock.tick(1000);
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expect(map._panes.mapPane.className).to.not.contain('leaflet-cluster-anim');
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});
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it('fires unspiderfied event on unspiderfy', function (done) {
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group = new L.MarkerClusterGroup();
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var marker = new L.Marker([1.5, 1.5]);
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var marker2 = new L.Marker([1.5, 1.5]);
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group.addLayers([marker, marker2]);
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map.addLayer(group);
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marker.__parent.spiderfy();
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clock.tick(1000);
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// Add event listener
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group.on('unspiderfied', function (event) {
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expect(event.target).to.be(group);
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expect(event.cluster).to.be.a(L.Marker);
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expect(event.markers[1]).to.be(marker);
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expect(event.markers[0]).to.be(marker2);
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done();
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});
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marker.__parent.unspiderfy();
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clock.tick(1000);
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});
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it('does not leave class "leaflet-cluster-anim" on mapPane when group is removed while spiderfied', function () {
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group = new L.MarkerClusterGroup();
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var marker = new L.Marker([1.5, 1.5]);
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var marker2 = new L.Marker([1.5, 1.5]);
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group.addLayers([marker, marker2]);
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map.addLayer(group);
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marker.__parent.spiderfy();
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clock.tick(1000);
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map.removeLayer(group);
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expect(map._panes.mapPane.className).to.not.contain('leaflet-cluster-anim');
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});
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describe('zoomend event listener', function () {
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it('unspiderfies correctly', function () {
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group = new L.MarkerClusterGroup();
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var marker = new L.Circle([1.5, 1.5], 10);
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var marker2 = new L.Circle([1.5, 1.5], 10);
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group.addLayer(marker);
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group.addLayer(marker2);
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map.addLayer(group);
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marker.__parent.spiderfy();
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expect(group._spiderfied).to.not.be(null);
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map.fire('zoomend');
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//We should unspiderfy with no animation, so this should be null
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expect(group._spiderfied).to.be(null);
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});
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});
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describe('spiderfied event listener', function () {
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it('Spiderfies 2 Markers', function (done) {
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group = new L.MarkerClusterGroup();
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var marker = new L.Marker([1.5, 1.5]);
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var marker2 = new L.Marker([1.5, 1.5]);
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group.addLayer(marker);
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group.addLayer(marker2);
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map.addLayer(group);
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// Add event listener
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group.on('spiderfied', function (event) {
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expect(event.target).to.be(group);
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expect(event.cluster).to.be.a(L.Marker);
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expect(event.markers[1]).to.be(marker);
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expect(event.markers[0]).to.be(marker2);
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done();
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});
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marker.__parent.spiderfy();
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clock.tick(200);
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});
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it('Spiderfies 2 Circles', function (done) {
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group = new L.MarkerClusterGroup();
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var marker = new L.Circle([1.5, 1.5], 10);
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var marker2 = new L.Circle([1.5, 1.5], 10);
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group.addLayer(marker);
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group.addLayer(marker2);
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map.addLayer(group);
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// Add event listener
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group.on('spiderfied', function (event) {
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expect(event.target).to.be(group);
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expect(event.cluster).to.be.a(L.Marker);
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expect(event.markers[1]).to.be(marker);
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expect(event.markers[0]).to.be(marker2);
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done();
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});
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marker.__parent.spiderfy();
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clock.tick(200);
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});
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});
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/////////////////////////////
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// CLEAN UP CODE
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/////////////////////////////
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map.remove();
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document.body.removeChild(div);
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});
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