Keep track of used labels

2019-01-22 21:00:21 +01:00
parent ea45068335
commit 592b6cf362
11 changed files with 150 additions and 37 deletions
@@ -0,0 +1,27 @@
+import LabelCache from '../../../../../src/ol/render/canvas/LabelCache';
+
+describe('ol.render.canvas.LabelCache', function() {
+
+  it('#prune()', function() {
+    const labelCache = new LabelCache(1);
+    labelCache.set('key1', document.createElement('canvas'));
+    labelCache.set('key2', document.createElement('canvas'));
+    labelCache.prune();
+    expect(labelCache.getCount()).to.be(1);
+  });
+
+  it('#prune() leaves used labels untouched until consumer is released', function() {
+    const labelCache = new LabelCache(1);
+    labelCache.set('key1', document.createElement('canvas'));
+    labelCache.set('key2', document.createElement('canvas'));
+    const consumer = {};
+    labelCache.get('key1', consumer);
+    labelCache.get('key2', consumer);
+    labelCache.prune();
+    expect(labelCache.getCount()).to.be(2);
+    labelCache.release(consumer);
+    labelCache.prune();
+    expect(labelCache.getCount()).to.be(1);
+  });
+
+});