qd-changjing/public/leaflet/libs/leaflet.markercluster/spec/suites/AddLayersSpec.js

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JavaScript
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2022-07-05 16:56:29 +08:00
describe('addLayers adding multiple markers', function () {
/////////////////////////////
// SETUP FOR EACH TEST
/////////////////////////////
var div, map, group;
beforeEach(function () {
div = document.createElement('div');
div.style.width = '200px';
div.style.height = '200px';
document.body.appendChild(div);
map = L.map(div, { maxZoom: 18, trackResize: false });
// Corresponds to zoom level 8 for the above div dimensions.
map.fitBounds(new L.LatLngBounds([
[1, 1],
[2, 2]
]));
});
afterEach(function () {
if (group instanceof L.MarkerClusterGroup) {
group.clearLayers();
map.removeLayer(group);
}
map.remove();
div.remove()
div = map = group = null;
});
/////////////////////////////
// TESTS
/////////////////////////////
it('creates a cluster when 2 overlapping markers are added before the group is added to the map', function () {
group = new L.MarkerClusterGroup();
var marker = new L.Marker([1.5, 1.5]);
var marker2 = new L.Marker([1.5, 1.5]);
group.addLayers([marker, marker2]);
map.addLayer(group);
expect(marker._icon).to.be(undefined);
expect(marker2._icon).to.be(undefined);
expect(map._panes.markerPane.childNodes.length).to.be(1);
});
it('creates a cluster when 2 overlapping markers are added after the group is added to the map', function () {
group = new L.MarkerClusterGroup();
var marker = new L.Marker([1.5, 1.5]);
var marker2 = new L.Marker([1.5, 1.5]);
map.addLayer(group);
group.addLayers([marker, marker2]);
expect(marker._icon).to.be(undefined);
expect(marker2._icon).to.be(undefined);
expect(map._panes.markerPane.childNodes.length).to.be(1);
});
it('creates a cluster and marker when 2 overlapping markers and one non-overlapping are added before the group is added to the map', function () {
group = new L.MarkerClusterGroup();
var marker = new L.Marker([1.5, 1.5]);
var marker2 = new L.Marker([1.5, 1.5]);
var marker3 = new L.Marker([3.0, 1.5]);
group.addLayers([marker, marker2, marker3]);
map.addLayer(group);
expect(marker._icon).to.be(undefined);
expect(marker2._icon).to.be(undefined);
expect(marker3._icon.parentNode).to.be(map._panes.markerPane);
expect(map._panes.markerPane.childNodes.length).to.be(2);
});
it('creates a cluster and marker when 2 overlapping markers and one non-overlapping are added after the group is added to the map', function () {
group = new L.MarkerClusterGroup();
var marker = new L.Marker([1.5, 1.5]);
var marker2 = new L.Marker([1.5, 1.5]);
var marker3 = new L.Marker([3.0, 1.5]);
map.addLayer(group);
group.addLayers([marker, marker2, marker3]);
expect(marker._icon).to.be(undefined);
expect(marker2._icon).to.be(undefined);
expect(marker3._icon.parentNode).to.be(map._panes.markerPane);
expect(map._panes.markerPane.childNodes.length).to.be(2);
});
it('handles nested Layer Groups', function () {
group = new L.MarkerClusterGroup();
var marker1 = new L.Marker([1.5, 1.5]);
var marker2 = new L.Marker([1.5, 1.5]);
var marker3 = new L.Marker([3.0, 1.5]);
var layerGroup = new L.LayerGroup([marker1, new L.LayerGroup([marker2])]);
map.addLayer(group);
group.addLayers([layerGroup, marker3]);
expect(marker1._icon).to.be(undefined);
expect(marker2._icon).to.be(undefined);
expect(marker3._icon.parentNode).to.be(map._panes.markerPane);
expect(map._panes.markerPane.childNodes.length).to.be(2);
});
});