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Leaflet/spec/suites/layer/tile/TileLayerSpec.js

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JavaScript
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Unit tests for flyTo and TileLayers.
2016-02-05 23:30:29 +08:00
describe('TileLayer', function () {
var div, map;
// Placekitten via http://placekitten.com/attribution.html
// Image licensed under CC-by-sa by http://flickr.com/photos/lachlanrogers/
var placeKitten = "data:image/jpeg;base64," +
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beforeEach(function () {
div = document.createElement('div');
div.style.width = '800px';
div.style.height = '600px';
div.style.visibility = 'hidden';
document.body.appendChild(div);
map = L.map(div);
});
afterEach(function () {
document.body.removeChild(div);
});
function kittenLayerFactory(options) {
return L.tileLayer(placeKitten, options || {});
}
describe("number of kittens loaded", function () {
var clock, kittenLayer, counts;
// animationFrame helper, just runs requestAnimFrame() a given number of times
function runFrames(n) {
return _runFrames(n)();
}
function _runFrames(n) {
if (n) {
return function () {
clock.tick(40); // 40msec/frame ~= 25fps
map.fire('_frame');
L.Util.requestAnimFrame(_runFrames(n - 1));
};
} else {
return L.Util.falseFn;
}
}
beforeEach(function () {
clock = sinon.useFakeTimers();
Fix TileLayer flyTo test (#5843) * fix TileLayer flyTo test * fix linter errors
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kittenLayer = kittenLayerFactory({keepBuffer: 0});
Unit tests for flyTo and TileLayers.
2016-02-05 23:30:29 +08:00
counts = {
tileload: 0,
tileerror: 0,
tileloadstart: 0,
tileunload: 0
};
kittenLayer.on('tileload tileunload tileerror tileloadstart', function (ev) {
upgrade deps, fix indenting (#5743)
2017-08-31 14:58:42 +08:00
// console.log(ev.type);
Unit tests for flyTo and TileLayers.
2016-02-05 23:30:29 +08:00
counts[ev.type]++;
});
upgrade deps, fix indenting (#5743)
2017-08-31 14:58:42 +08:00
// grid.on('tileunload', function (ev) {
// console.log(ev.type, ev.coords, counts);
// });
Unit tests for flyTo and TileLayers.
2016-02-05 23:30:29 +08:00
map.options.fadeAnimation = false;
map.options.zoomAnimation = false;
});
afterEach(function () {
clock.restore();
kittenLayer.off();
kittenLayer = undefined;
counts = undefined;
});
it("Loads 8 kittens zoom 1", function (done) {
kittenLayer.on('load', function () {
expect(counts.tileloadstart).to.be(8);
expect(counts.tileload).to.be(8);
expect(counts.tileunload).to.be(0);
expect(kittenLayer._container.querySelectorAll('img').length).to.be(8);
done();
});
map.addLayer(kittenLayer).setView([0, 0], 1);
clock.tick(250);
});
// NOTE: This test has different behaviour in PhantomJS and graphical
// browsers due to CSS animations!
it.skipInPhantom("Loads 290, unloads 275 kittens on MAD-TRD flyTo()", function (done) {
this.timeout(10000); // This test takes longer than usual due to frames
var mad = [40.40, -3.7], trd = [63.41, 10.41];
kittenLayer.on('load', function () {
expect(counts.tileloadstart).to.be(12);
expect(counts.tileload).to.be(12);
expect(counts.tileunload).to.be(0);
kittenLayer.off('load');
map.on('zoomend', function () {
expect(counts.tileloadstart).to.be(290);
expect(counts.tileunload).to.be(275);
// image tiles take time, so then might not be fully loaded yet.
expect(counts.tileload).to.be.lessThan(counts.tileloadstart + 1);
expect(counts.tileload).to.be.greaterThan(counts.tileunload);
expect(kittenLayer._container.querySelectorAll('img').length).to.be(15);
done();
});
map.flyTo(trd, 12, {animate: true});
upgrade deps, fix indenting (#5743)
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// map.on('_frame', function () {
// console.log('frame', counts);
// });
Unit tests for flyTo and TileLayers.
2016-02-05 23:30:29 +08:00
runFrames(500);
});
map.addLayer(kittenLayer).setView(mad, 12);
clock.tick(250);
});
});
Unit tests for TileLayer getTileUrl replacements
2016-03-21 22:00:13 +08:00
describe('url template', function () {
beforeEach(function () {
div = document.createElement('div');
div.style.width = '400px';
div.style.height = '400px';
div.style.visibility = 'hidden';
Unit tests for flyTo and TileLayers.
2016-02-05 23:30:29 +08:00
Unit tests for TileLayer getTileUrl replacements
2016-03-21 22:00:13 +08:00
document.body.appendChild(div);
map = L.map(div).setView([0, 0], 2);
});
function eachImg(layer, callback) {
var imgtags = layer._container.children[0].children;
for (var i in imgtags) {
if (imgtags[i].tagName === 'IMG') {
callback(imgtags[i]);
}
}
}
it('replaces {y} with y coordinate', function () {
var layer = L.tileLayer('http://example.com/{z}/{y}/{x}.png').addTo(map);
var urls = [
'http://example.com/2/1/1.png',
'http://example.com/2/1/2.png',
'http://example.com/2/2/1.png',
'http://example.com/2/2/2.png'
];
var i = 0;
eachImg(layer, function (img) {
expect(img.src).to.eql(urls[i]);
i++;
});
});
Unit tests for flyTo and TileLayers.
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Unit tests for TileLayer getTileUrl replacements
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it('replaces {-y} with inverse y coordinate', function () {
var layer = L.tileLayer('http://example.com/{z}/{-y}/{x}.png').addTo(map);
var urls = [
'http://example.com/2/2/1.png',
'http://example.com/2/2/2.png',
'http://example.com/2/1/1.png',
'http://example.com/2/1/2.png'
];
var i = 0;
eachImg(layer, function (img) {
expect(img.src).to.eql(urls[i]);
i++;
});
});
Do not calculate inverted y coords for CRSes with infinite: true Fixes #4338
2016-03-22 19:52:00 +08:00
it('Does not replace {-y} on map with infinite CRS', function () {
var simplediv = document.createElement('div');
simplediv.style.width = '400px';
simplediv.style.height = '400px';
simplediv.style.visibility = 'hidden';
document.body.appendChild(simplediv);
var simpleMap = L.map(simplediv, {
crs: L.CRS.Simple
}).setView([0, 0], 5);
var layer = L.tileLayer('http://example.com/{z}/{-y}/{x}.png');
expect(function () {
layer.addTo(simpleMap);
}).to.throwError('No value provided for variable {-y}');
simpleMap.remove();
document.body.removeChild(simplediv);
});
Unit tests for TileLayer getTileUrl replacements
2016-03-21 22:00:13 +08:00
it('replaces {s} with [abc] by default', function () {
var layer = L.tileLayer('http://{s}.example.com/{z}/{-y}/{x}.png').addTo(map);
eachImg(layer, function (img) {
expect(['a', 'b', 'c'].indexOf(img.src[7]) >= 0).to.eql(true);
});
});
it('replaces {s} with specified prefixes', function () {
var layer = L.tileLayer('http://{s}.example.com/{z}/{-y}/{x}.png', {
subdomains: 'qrs'
}).addTo(map);
eachImg(layer, function (img) {
expect(['q', 'r', 's'].indexOf(img.src[7]) >= 0).to.eql(true);
});
});
Test(TileLayer): check zoomOffset option is used (#6011) following issue #6004 (fixed by PR #6006). Added 2 dedicated tests. Unfortunately I could not add a test for detectRetina option that easily, because since the move to Rollup, Browser values became internal variables, and overriding them later on does not have any effect on Leaflet internal references… Not sure how to workaround this for the sake of testing.
2018-01-19 10:12:11 +08:00
it('uses zoomOffset option', function () {
// Map view is set at zoom 2 in beforeEach.
var layer = L.tileLayer('http://example.com/{z}/{y}/{x}.png', {
zoomOffset: 1 // => zoom 2 + zoomOffset 1 => z 3 in URL.
}).addTo(map);
var urls = [
'http://example.com/3/1/1.png',
'http://example.com/3/1/2.png',
'http://example.com/3/2/1.png',
'http://example.com/3/2/2.png'
];
var i = 0;
eachImg(layer, function (img) {
expect(img.src).to.eql(urls[i]);
i++;
});
});
it('uses negative zoomOffset option', function () {
// Map view is set at zoom 2 in beforeEach.
var layer = L.tileLayer('http://example.com/{z}/{y}/{x}.png', {
zoomOffset: -3 // => zoom 2 + zoomOffset -3 => z -1 in URL.
}).addTo(map);
var urls = [
'http://example.com/-1/1/1.png',
'http://example.com/-1/1/2.png',
'http://example.com/-1/2/1.png',
'http://example.com/-1/2/2.png'
];
var i = 0;
eachImg(layer, function (img) {
expect(img.src).to.eql(urls[i]);
i++;
});
});
Unit tests for TileLayer getTileUrl replacements
2016-03-21 22:00:13 +08:00
});
});
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