242 lines
8.3 KiB
JavaScript
242 lines
8.3 KiB
JavaScript
import ImageTile from '../../../../src/ol/ImageTile.js';
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import TileState from '../../../../src/ol/TileState.js';
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import {createFromTemplate} from '../../../../src/ol/tileurlfunction.js';
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import _ol_events_ from '../../../../src/ol/events.js';
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import {addCommon, clearAllProjections, get as getProjection} from '../../../../src/ol/proj.js';
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import {register} from '../../../../src/ol/proj/proj4.js';
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import _ol_proj_EPSG3857_ from '../../../../src/ol/proj/EPSG3857.js';
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import _ol_proj_Projection_ from '../../../../src/ol/proj/Projection.js';
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import ReprojTile from '../../../../src/ol/reproj/Tile.js';
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import TileImage from '../../../../src/ol/source/TileImage.js';
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import _ol_tilecoord_ from '../../../../src/ol/tilecoord.js';
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import _ol_tilegrid_ from '../../../../src/ol/tilegrid.js';
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describe('ol.source.TileImage', function() {
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function createSource(opt_proj, opt_tileGrid, opt_cacheSize) {
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var proj = opt_proj || 'EPSG:3857';
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return new TileImage({
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cacheSize: opt_cacheSize,
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projection: proj,
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tileGrid: opt_tileGrid ||
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_ol_tilegrid_.createForProjection(proj, undefined, [2, 2]),
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tileUrlFunction: createFromTemplate('data:image/gif;base64,R0lGODlhAQABAIAAAP///wAAACwAAAAAAQABAAACAkQBADs=')
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});
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}
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describe('#getTileCacheForProjection', function() {
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it('uses the cacheSize for reprojected tile caches', function() {
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var source = createSource(undefined, undefined, 42);
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var tileCache = source.getTileCacheForProjection(getProjection('EPSG:4326'));
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expect(tileCache.highWaterMark).to.be(42);
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expect(tileCache).to.not.equal(source.getTileCacheForProjection(source.getProjection()));
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});
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});
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describe('#setTileGridForProjection', function() {
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it('uses the tilegrid for given projection', function() {
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var source = createSource();
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var tileGrid = _ol_tilegrid_.createForProjection('EPSG:4326', 3, [10, 20]);
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source.setTileGridForProjection('EPSG:4326', tileGrid);
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var retrieved = source.getTileGridForProjection(getProjection('EPSG:4326'));
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expect(retrieved).to.be(tileGrid);
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});
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});
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describe('#getTileInternal', function() {
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var source, tile;
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beforeEach(function() {
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source = createSource();
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expect(source.getKey()).to.be('');
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source.getTileInternal(0, 0, -1, 1, getProjection('EPSG:3857'));
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expect(source.tileCache.getCount()).to.be(1);
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tile = source.tileCache.get(_ol_tilecoord_.getKeyZXY(0, 0, -1));
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});
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it('gets the tile from the cache', function() {
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var returnedTile = source.getTileInternal(
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0, 0, -1, 1, getProjection('EPSG:3857'));
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expect(returnedTile).to.be(tile);
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});
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describe('change a dynamic param', function() {
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describe('tile is not loaded', function() {
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it('returns a tile with no interim tile', function() {
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source.getKey = function() {
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return 'key0';
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};
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var returnedTile = source.getTileInternal(
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0, 0, -1, 1, getProjection('EPSG:3857'));
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expect(returnedTile).not.to.be(tile);
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expect(returnedTile.key).to.be('key0');
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expect(returnedTile.interimTile).to.be(null);
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});
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});
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describe('tile is loaded', function() {
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it('returns a tile with interim tile', function() {
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source.getKey = function() {
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return 'key0';
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};
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tile.state = 2; // LOADED
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var returnedTile = source.getTileInternal(
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0, 0, -1, 1, getProjection('EPSG:3857'));
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expect(returnedTile).not.to.be(tile);
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expect(returnedTile.key).to.be('key0');
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expect(returnedTile.interimTile).to.be(tile);
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});
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});
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describe('tile is not loaded but interim tile is', function() {
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it('returns a tile with interim tile', function() {
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var dynamicParamsKey, returnedTile;
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source.getKey = function() {
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return dynamicParamsKey;
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};
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dynamicParamsKey = 'key0';
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tile.state = 2; // LOADED
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returnedTile = source.getTileInternal(
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0, 0, -1, 1, getProjection('EPSG:3857'));
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dynamicParamsKey = 'key1';
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returnedTile = source.getTileInternal(
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0, 0, -1, 1, getProjection('EPSG:3857'));
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expect(returnedTile).not.to.be(tile);
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expect(returnedTile.key).to.be('key1');
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expect(returnedTile.interimTile).to.be(tile);
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});
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});
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});
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});
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describe('#getTile', function() {
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it('does not do reprojection for identity', function() {
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var source3857 = createSource('EPSG:3857');
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var tile3857 = source3857.getTile(0, 0, -1, 1, getProjection('EPSG:3857'));
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expect(tile3857).to.be.a(ImageTile);
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expect(tile3857).not.to.be.a(ReprojTile);
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var projXXX = new _ol_proj_Projection_({
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code: 'XXX',
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units: 'degrees'
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});
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var sourceXXX = createSource(projXXX);
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var tileXXX = sourceXXX.getTile(0, 0, -1, 1, projXXX);
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expect(tileXXX).to.be.a(ImageTile);
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expect(tileXXX).not.to.be.a(ReprojTile);
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});
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beforeEach(function() {
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proj4.defs('4326_noextentnounits', '+proj=longlat +datum=WGS84 +no_defs');
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register(proj4);
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});
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afterEach(function() {
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delete proj4.defs['4326_noextentnounits'];
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clearAllProjections();
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addCommon();
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});
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it('can handle source projection without extent and units', function(done) {
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var source = createSource('4326_noextentnounits', _ol_tilegrid_.createXYZ({
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extent: [-180, -90, 180, 90],
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tileSize: [2, 2]
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}));
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var tile = source.getTile(0, 0, -1, 1, getProjection('EPSG:3857'));
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expect(tile).to.be.a(ReprojTile);
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_ol_events_.listen(tile, 'change', function() {
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if (tile.getState() == 2) { // LOADED
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done();
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}
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});
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tile.load();
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});
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it('can handle target projection without extent and units', function(done) {
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var proj = getProjection('4326_noextentnounits');
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var source = createSource();
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source.setTileGridForProjection(proj,
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_ol_tilegrid_.createXYZ({
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extent: _ol_proj_EPSG3857_.WORLD_EXTENT,
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tileSize: [2, 2]
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}));
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var tile = source.getTile(0, 0, -1, 1, proj);
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expect(tile).to.be.a(ReprojTile);
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_ol_events_.listen(tile, 'change', function() {
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if (tile.getState() == 2) { // LOADED
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done();
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}
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});
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tile.load();
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});
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});
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describe('tile load events', function() {
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var source;
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beforeEach(function() {
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source = new TileImage({
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url: '{z}/{x}/{y}'
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});
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});
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it('dispatches tileloadstart and tileloadend events', function() {
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source.setTileLoadFunction(function(tile) {
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tile.setState(TileState.LOADED);
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});
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var startSpy = sinon.spy();
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source.on('tileloadstart', startSpy);
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var endSpy = sinon.spy();
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source.on('tileloadend', endSpy);
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var tile = source.getTile(0, 0, -1, 1, getProjection('EPSG:3857'));
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tile.load();
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expect(startSpy.callCount).to.be(1);
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expect(endSpy.callCount).to.be(1);
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});
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it('works for loading-error-loading-loaded sequences', function(done) {
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source.setTileLoadFunction(function(tile) {
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tile.setState(
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tile.state == TileState.ERROR ? TileState.LOADED : TileState.ERROR);
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});
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var startSpy = sinon.spy();
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source.on('tileloadstart', startSpy);
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var errorSpy = sinon.spy();
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source.on('tileloaderror', function(e) {
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setTimeout(function() {
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e.tile.setState(TileState.LOADING);
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e.tile.setState(TileState.LOADED);
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}, 0);
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errorSpy();
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});
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source.on('tileloadend', function() {
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expect(startSpy.callCount).to.be(2);
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expect(errorSpy.callCount).to.be(1);
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done();
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});
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var tile = source.getTile(0, 0, -1, 1, getProjection('EPSG:3857'));
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tile.load();
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});
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it('dispatches tileloadend events for aborted tiles', function() {
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source.setTileLoadFunction(function() {});
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var startSpy = sinon.spy();
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source.on('tileloadstart', startSpy);
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var endSpy = sinon.spy();
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source.on('tileloadend', endSpy);
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var tile = source.getTile(0, 0, -1, 1, getProjection('EPSG:3857'));
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tile.load();
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tile.dispose();
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expect(startSpy.callCount).to.be(1);
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expect(endSpy.callCount).to.be(1);
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});
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});
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});
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