https://github.com/WWBN/AVideo/issues/8137

node_modules/flickity/test/unit/page-dots.js

@@ -0,0 +1,27 @@
+QUnit.test( 'pageDots', function( assert ) {
+
+  let elem = document.querySelector('#page-dots');
+  let flkty = new Flickity( elem );
+
+  let dotsHolder = elem.querySelector('.flickity-page-dots');
+  let dotsElems = [ ...dotsHolder.querySelectorAll('.flickity-page-dot') ];
+
+  assert.ok( dotsHolder, 'dots holder in DOM' );
+  assert.equal( flkty.pageDots.holder, dotsHolder,
+      'dots holder element matches flkty.pageDots.holder' );
+  assert.equal( dotsElems.length, flkty.cells.length,
+      'number of dots matches number of cells' );
+
+  function getSelectedDotIndex() {
+    return dotsElems.indexOf( dotsHolder.querySelector('.is-selected') );
+  }
+
+  assert.equal( getSelectedDotIndex(), 0, 'first dot is selected' );
+  flkty.select( 2 );
+  assert.equal( getSelectedDotIndex(), 2, '3rd dot is selected' );
+
+  // fake click
+  flkty.onPageDotsClick({ target: dotsElems[4] });
+  assert.equal( flkty.selectedIndex, 4, 'tap dot selects cell' );
+
+} );