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test(GridLayer): fix graphical browser zoom in

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test on number of pruned tiles during zoom-in in "graphical browsers" (i.e. not PhantomJS) was failing due to missing some rAF to let the animation process fully go through and be able to prune the remaining 4 tiles.
This commit is contained in:
ghybs 2018-06-22 12:09:42 +04:00
parent 7c33eab7c5
commit 5993deb4c8
1 changed files with 65 additions and 27 deletions
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92
spec/suites/layer/tile/GridLayerSpec.js
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@ -599,46 +599,84 @@ describe('GridLayer', function () {
// browsers due to CSS animations!
it.skipInPhantom("Loads 32, unloads 16 tiles zooming in 10-11", function (done) {
// grid.on('tileload tileunload tileloadstart load', logTiles);
// Advance the time to !== 0 otherwise `tile.loaded` timestamp will appear to be falsy.
clock.tick(1);
// Date.now() is 1.
grid.on('load', function () {
expect(counts.tileloadstart).to.be(16);
// grid.on('tileload tileunload tileloadstart load loading', logTiles);
// Use "once" to automatically detach the listener,
// and avoid removing the above logTiles
// (which would happen when calling "grid.off('load')").
grid.once('load', function () {
expect(counts.tileload).to.be(16);
expect(counts.tileunload).to.be(0);
grid.off('load');
// grid.on('load', logTiles);
grid.on('load', function () {
// We're one frame into the zoom animation, there are
// 16 tiles for z10 plus 16 tiles for z11 covering the
// bounds at the *end* of the zoom-*in* anim
expect(counts.tileloadstart).to.be(32);
expect(counts.tileload).to.be(32);
expect(counts.tileunload).to.be(0);
// Wait for a frame to let _updateOpacity starting.
L.Util.requestAnimFrame(function () {
// Wait > 250msec for the tile fade-in animation to complete,
// which triggers the tile pruning
clock.tick(300);
// At 251ms, the pruneTile from the end of the z10 tiles fade-in animation executes.
// Date.now() is 301.
// After the zoom-in, the 'outside' 12 tiles (not the 4
// at the center, still in bounds) have been unloaded.
expect(counts.tileunload).to.be(12);
L.Util.requestAnimFrame(function () {
expect(counts.tileloadstart).to.be(32);
grid.once('load', function () {
expect(counts.tileload).to.be(32);
expect(counts.tileunload).to.be(16);
done();
});
});
map.setZoom(11, {animate: true});
clock.tick(250);
// We're one frame into the zoom animation,
// so GridLayer._setView with noPrune === undefined is not called yet
// No tile should be unloaded yet.
expect(counts.tileunload).to.be(0);
// Wait > 250msec for the zoom animation to complete,
// which triggers the tile pruning
// Animated zoom takes 1 frame + 250ms before firing "zoom" event
// => GridLayer._resetView => GridLayer._setView => _pruneTiles
// However, this "load" event callback executes synchronously,
// i.e. _tileReady still did not have a chance to prepare the
// setTimeout(250) for pruning after the end of the fade-in animation.
clock.tick(300);
// At 301 + 250 = 551ms, the pruneTile from the end of the zoom animation executes.
// It unloads the 'outside' 12 tiles from z10, but not the 4 tiles in the center,
// since _updateOpacity did not have a chance yet to flag the 16 new z11 tiles as "active".
expect(counts.tileunload).to.be(12);
// Date.now() is 601.
// Wait for a frame to let _updateOpacity starting
// + _tileReady to be able to prepare its setTimeout(250)
// for pruning after the end of the fade-in animation.
// Since we are already > 200ms since the 'load' event fired,
// _updateOpacity should directly set the current tiles as "active",
// so the remaining 4 tiles from z10 can then be pruned.
// However we have skipped any pruning from _updateOpacity,
// so we will have to rely on the setTimeout from _tileReady.
L.Util.requestAnimFrame(function () {
// Wait > 250msec for the tile fade-in animation to complete,
// which triggers the tile pruning
clock.tick(300);
// At 851ms, the pruneTile from the end of the z11 tiles fade-in animation executes.
// It unloads the remaining 4 tiles from z10.
expect(counts.tileunload).to.be(16);
// Date.now() is 901.
done();
});
});
map.setZoom(11, {animate: true});
// Animation (and new tiles loading) starts after 1 frame.
L.Util.requestAnimFrame(function () {
// 16 extra tiles from z11 being loaded. Total 16 + 16 = 32.
expect(counts.tileloadstart).to.be(32);
});
});
});
map.addLayer(grid).setView([0, 0], 10);
clock.tick(250);
// The first setView does not animated, therefore it starts loading tiles immediately.
// 16 tiles from z10 being loaded.
expect(counts.tileloadstart).to.be(16);
// At 1ms, first pruneTile (map fires "viewreset" event => GridLayer._resetView => GridLayer._setView => _pruneTiles).
});
it("Loads 32, unloads 16 tiles zooming in 10-18", function (done) {