Only clear canvas when necessary, add tests

2017-09-24 10:58:01 -07:00
parent ecc2a9059e
commit 0f53d04361
6 changed files with 85 additions and 5 deletions
--- a/test/rendering/ol/layer/tile.test.js
+++ b/test/rendering/ol/layer/tile.test.js
@@ -72,6 +72,21 @@ describe('ol.rendering.layer.Tile', function() {
    });
  }

+  describe('with tile transition', function() {
+    it('renders correctly after the transition', function(done) {
+      createMap('canvas');
+      var source = new ol.source.XYZ({
+        url: 'rendering/ol/data/tiles/osm/{z}/{x}/{y}.png'
+      });
+      waitForTiles([source], {}, function() {
+        setTimeout(function() {
+          expectResemble(map, 'rendering/ol/layer/expected/osm-canvas.png',
+              IMAGE_TOLERANCE, done);
+        }, 500);
+      });
+    });
+  });
+
  describe('single tile layer', function() {
    var source;