leaflet.markercluster
Version:
Provides Beautiful Animated Marker Clustering functionality for Leaflet
111 lines (76 loc) • 2.71 kB
JavaScript
describe('singleMarkerMode option', function () {
/**
* Avoid as much as possible creating and destroying objects for each test.
* Instead, try re-using them, except for the ones under test of course.
* PhantomJS does not perform garbage collection for the life of the page,
* i.e. during the entire test process (Karma runs all tests in a single page).
* http://stackoverflow.com/questions/27239708/how-to-get-around-memory-error-with-karma-phantomjs
*
* The `beforeEach` and `afterEach do not seem to cause much issue.
* => they can still be used to initialize some setup between each test.
* Using them keeps a readable spec/index.
*
* But refrain from re-creating div and map every time. Re-use those objects.
*/
/////////////////////////////
// SETUP FOR EACH TEST
/////////////////////////////
beforeEach(function () {
// Reset the marker icon.
marker.setIcon(defaultIcon);
});
afterEach(function () {
if (group instanceof L.MarkerClusterGroup) {
group.removeLayers(group.getLayers());
map.removeLayer(group);
}
// Throw away group as it can be assigned with different configurations between tests.
group = null;
});
/////////////////////////////
// PREPARATION CODE
/////////////////////////////
var div, map, group;
var defaultIcon = new L.Icon.Default(),
clusterIcon = new L.Icon.Default(),
marker = L.marker([1.5, 1.5]);
div = document.createElement('div');
div.style.width = '200px';
div.style.height = '200px';
document.body.appendChild(div);
map = L.map(div, { maxZoom: 18 });
// Corresponds to zoom level 8 for the above div dimensions.
map.fitBounds(new L.LatLngBounds([
[1, 1],
[2, 2]
]));
/////////////////////////////
// TESTS
/////////////////////////////
it('overrides marker icons when set to true', function () {
group = L.markerClusterGroup({
singleMarkerMode: true,
iconCreateFunction: function (layer) {
return clusterIcon;
}
}).addTo(map);
expect(marker.options.icon).to.equal(defaultIcon);
marker.addTo(group);
expect(marker.options.icon).to.equal(clusterIcon);
});
it('does not modify marker icons by default (or set to false)', function () {
group = L.markerClusterGroup({
iconCreateFunction: function (layer) {
return clusterIcon;
}
}).addTo(map);
expect(marker.options.icon).to.equal(defaultIcon);
marker.addTo(group);
expect(marker.options.icon).to.equal(defaultIcon);
});
/////////////////////////////
// CLEAN UP CODE
/////////////////////////////
map.remove();
document.body.removeChild(div);
});