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https://github.com/TheGreyDiamond/elevatormapRewritten.git
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104 lines
2.4 KiB
JavaScript
104 lines
2.4 KiB
JavaScript
describe('disableClusteringAtZoom option', 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.clearLayers();
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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('unclusters at zoom level equal or higher', function () {
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var maxZoom = 15;
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group = new L.MarkerClusterGroup({
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disableClusteringAtZoom: maxZoom
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});
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group.addLayers([
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new L.Marker([1.5, 1.5]),
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new L.Marker([1.5, 1.5])
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]);
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map.addLayer(group);
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expect(group._maxZoom).to.equal(maxZoom - 1);
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expect(map._panes.markerPane.childNodes.length).to.equal(1); // 1 cluster.
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map.setZoom(14);
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clock.tick(1000);
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expect(map._panes.markerPane.childNodes.length).to.equal(1); // 1 cluster.
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map.setZoom(15);
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clock.tick(1000);
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expect(map._panes.markerPane.childNodes.length).to.equal(2); // 2 markers.
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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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