Take the pixelRatio into account when computing the gutter

test_rendering/spec/ol/source/tilewms.test.js

@@ -0,0 +1,151 @@
+goog.provide('ol.test.rendering.source.TileWMS');
+
+goog.require('ol.Map');
+goog.require('ol.View');
+goog.require('ol.layer.Tile');
+goog.require('ol.source.TileWMS');
+
+describe('ol.rendering.source.TileWMS', function() {
+
+  function tilesLoaded(source, callback) {
+    var loading = 0;
+
+    source.on('tileloadstart', function(event) {
+      loading++;
+    });
+    source.on('tileloadend', function(event) {
+      loading--;
+      if (loading == 0) {
+        callback();
+      }
+    });
+    source.on('tileloaderror', function(event) {
+      expect().fail('Tile failed to load');
+    });
+
+  }
+
+  function createMap(renderer, pixelRatio) {
+    return new ol.Map({
+      target: createMapDiv(200, 200),
+      pixelRatio: pixelRatio,
+      renderer: renderer,
+      view: new ol.View({
+        center: [0, 0],
+        zoom: 5
+      })
+    });
+  }
+
+  function createSource(gutter) {
+    return new ol.source.TileWMS({
+      params: {
+        'LAYERS': 'layer'
+      },
+      gutter: gutter,
+      url: 'spec/ol/data/tiles/wms/wms' + gutter + '.png'
+    });
+  }
+
+  describe('0px gutter, 1 pixel ratio', function() {
+    it('tests the canvas renderer', function(done) {
+      var map = createMap('canvas', 1);
+      var source = createSource(0);
+      tilesLoaded(source, function() {
+        expectResemble(map, 'spec/ol/source/expected/0_1.canvas.png', IMAGE_TOLERANCE, done);
+      });
+      map.addLayer(new ol.layer.Tile({
+        source: source
+      }));
+    });
+
+    it('tests the WebGL renderer', function(done) {
+      assertWebGL();
+      var map = createMap('webgl', 1);
+      var source = createSource(0);
+      tilesLoaded(source, function() {
+        expectResemble(map, 'spec/ol/source/expected/0_1.webgl.png', IMAGE_TOLERANCE, done);
+      });
+      map.addLayer(new ol.layer.Tile({
+        source: source
+      }));
+    });
+  });
+
+  describe('0px gutter, 2 pixel ratio', function() {
+    it('tests the canvas renderer', function(done) {
+      var map = createMap('canvas', 2);
+      var source = createSource(0);
+      tilesLoaded(source, function() {
+        expectResemble(map, 'spec/ol/source/expected/0_2.canvas.png', IMAGE_TOLERANCE, done);
+      });
+      map.addLayer(new ol.layer.Tile({
+        source: source
+      }));
+    });
+
+    it('tests the WebGL renderer', function(done) {
+      assertWebGL();
+      var map = createMap('webgl', 2);
+      var source = createSource(0);
+      tilesLoaded(source, function() {
+        expectResemble(map, 'spec/ol/source/expected/0_2.webgl.png', IMAGE_TOLERANCE, done);
+      });
+      map.addLayer(new ol.layer.Tile({
+        source: source
+      }));
+    });
+  });
+
+
+  describe('20px gutter, 1 pixel ratio', function() {
+    it('tests the canvas renderer', function(done) {
+      var map = createMap('canvas', 1);
+      var source = createSource(20);
+      tilesLoaded(source, function() {
+        expectResemble(map, 'spec/ol/source/expected/20_1.canvas.png', IMAGE_TOLERANCE, done);
+      });
+      map.addLayer(new ol.layer.Tile({
+        source: source
+      }));
+    });
+
+    it('tests the WebGL renderer', function(done) {
+      assertWebGL();
+      var map = createMap('webgl', 1);
+      var source = createSource(20);
+      tilesLoaded(source, function() {
+        expectResemble(map, 'spec/ol/source/expected/20_1.webgl.png', IMAGE_TOLERANCE, done);
+      });
+      map.addLayer(new ol.layer.Tile({
+        source: source
+      }));
+    });
+  });
+
+  describe('20px gutter, 2 pixel ratio', function() {
+    it('tests the canvas renderer', function(done) {
+      var map = createMap('canvas', 2);
+      var source = createSource(20);
+      tilesLoaded(source, function() {
+        expectResemble(map, 'spec/ol/source/expected/20_2.canvas.png', IMAGE_TOLERANCE, done);
+      });
+      map.addLayer(new ol.layer.Tile({
+        source: source
+      }));
+    });
+
+    it('tests the WebGL renderer', function(done) {
+      assertWebGL();
+      var map = createMap('webgl', 2);
+      var source = createSource(20);
+      tilesLoaded(source, function() {
+        expectResemble(map, 'spec/ol/source/expected/20_2.webgl.png', IMAGE_TOLERANCE, done);
+      });
+      map.addLayer(new ol.layer.Tile({
+        source: source
+      }));
+    });
+  });
+
+});