import popper.js

Signed-off-by: Nico Schottelius <nico@nico-notebook.schottelius.org>

assets/u/static/popper.js-1.16.0/packages/popper/tests/unit/debounce.js

@@ -0,0 +1,32 @@
+import { microtaskDebounce, taskDebounce } from '../../src/utils/debounce';
+const microTasksAvailable = window.Promise
+
+describe('utils/debounce', () => {
+  it('microtaskDebounce: should be called only once', done => {
+    if (!microTasksAvailable) {
+      pending();
+    }
+
+    let i = 0;
+    const debounced = microtaskDebounce(() => i++);
+    debounced();
+    debounced();
+    debounced();
+    setTimeout(() => {
+      expect(i).toBe(1, 'debounce is called only once');
+      done();
+    }, 1);
+  });
+
+  it('taskDebounce: should be called only once', done => {
+    let i = 0;
+    const debounced = taskDebounce(() => i++);
+    debounced();
+    debounced();
+    debounced();
+    setTimeout(() => {
+      expect(i).toBe(1, 'debounce is called only once');
+      done();
+    }, 1);
+  });
+});