describe('TileLayer', function () { describe("#getMaxZoom, #getMinZoom", function () { var map; beforeEach(function () { map = L.map(document.createElement('div')); }); describe("when a tilelayer is added to a map with no other layers", function () { it("has the same zoomlevels as the tilelayer", function () { var maxZoom = 10, minZoom = 5; map.setView([0, 0], 1); L.tileLayer("{z}{x}{y}", { maxZoom: maxZoom, minZoom: minZoom }).addTo(map); expect(map.getMaxZoom()).toBe(maxZoom); expect(map.getMinZoom()).toBe(minZoom); }); }); describe("accessing a tilelayer's properties", function () { it('provides a container', function () { map.setView([0, 0], 1); var layer = L.tileLayer("{z}{x}{y}").addTo(map); expect(layer.getContainer()).toBeTruthy(); }); }); describe("when a tilelayer is added to a map that already has a tilelayer", function () { it("has its zoomlevels updated to fit the new layer", function () { map.setView([0, 0], 1); L.tileLayer("{z}{x}{y}", { minZoom:10, maxZoom: 15 }).addTo(map); expect(map.getMinZoom()).toBe(10); expect(map.getMaxZoom()).toBe(15); L.tileLayer("{z}{x}{y}", { minZoom:5, maxZoom: 10 }).addTo(map); expect(map.getMinZoom()).toBe(5); // changed expect(map.getMaxZoom()).toBe(15); // unchanged L.tileLayer("{z}{x}{y}",{ minZoom:10, maxZoom: 20 }).addTo(map); expect(map.getMinZoom()).toBe(5); // unchanged expect(map.getMaxZoom()).toBe(20); // changed L.tileLayer("{z}{x}{y}", { minZoom:0, maxZoom: 25 }).addTo(map); expect(map.getMinZoom()).toBe(0); // changed expect(map.getMaxZoom()).toBe(25); // changed }); }); describe("when a tilelayer is removed from a map", function () { it("has its zoomlevels updated to only fit the layers it currently has", function () { var tiles = [ L.tileLayer("{z}{x}{y}", { minZoom:10, maxZoom: 15 }).addTo(map), L.tileLayer("{z}{x}{y}", { minZoom:5, maxZoom: 10 }).addTo(map), L.tileLayer("{z}{x}{y}", { minZoom:10, maxZoom: 20 }).addTo(map), L.tileLayer("{z}{x}{y}", { minZoom:0, maxZoom: 25 }).addTo(map) ]; map.whenReady(function() { expect(map.getMinZoom()).toBe(0); expect(map.getMaxZoom()).toBe(25); map.removeLayer(tiles[0]); expect(map.getMinZoom()).toBe(0); expect(map.getMaxZoom()).toBe(25); map.removeLayer(tiles[3]); expect(map.getMinZoom()).toBe(5); expect(map.getMaxZoom()).toBe(20); map.removeLayer(tiles[2]); expect(map.getMinZoom()).toBe(5); expect(map.getMaxZoom()).toBe(10); map.removeLayer(tiles[1]); expect(map.getMinZoom()).toBe(0); expect(map.getMaxZoom()).toBe(Infinity); }); }); }); }); });