Add test for attributionsCollapsible property on source

test/spec/ol/control/attribution.test.js

@@ -9,6 +9,18 @@ import {createXYZ} from '../../../../src/ol/tilegrid.js';
 describe('ol.control.Attribution', function() {
 
   let map;
+
+  const tileLoadFunction = function() {
+    const tile = new Tile([0, 0, -1], 2 /* LOADED */);
+    tile.getImage = function() {
+      const image = new Image();
+      image.width = 256;
+      image.height = 256;
+      return image;
+    };
+    return tile;
+  };
+
   beforeEach(function() {
     const target = document.createElement('div');
     target.style.width = target.style.height = '100px';
@@ -49,16 +61,7 @@ describe('ol.control.Attribution', function() {
     });
     map.getLayers().forEach(function(layer) {
       const source = layer.getSource();
-      source.getTile = function() {
-        const tile = new Tile([0, 0, -1], 2 /* LOADED */);
-        tile.getImage = function() {
-          const image = new Image();
-          image.width = 256;
-          image.height = 256;
-          return image;
-        };
-        return tile;
-      };
+      source.getTile = tileLoadFunction;
     });
   });
 
@@ -73,4 +76,23 @@ describe('ol.control.Attribution', function() {
     expect(attribution.length).to.be(2);
   });
 
+  it('renders attributions as non-collapsible if source is configured with attributionsCollapsible set to false', function() {
+    map.getControls().clear();
+    map.addControl(new Attribution());
+    const source = new TileSource({
+      projection: 'EPSG:3857',
+      tileGrid: createXYZ(),
+      attributions: 'foo',
+      attributionsCollapsible: false
+    });
+    source.getTile = tileLoadFunction;
+    map.addLayer(new TileLayer({
+      source: source
+    }));
+    map.renderSync();
+
+    const attribution = map.getTarget().querySelectorAll('.ol-attribution.ol-uncollapsible');
+    expect(attribution.length).to.be(1);
+  });
+
 });