grid programme

node_modules/flickity/test/unit/change.js

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+QUnit.test( 'change', function( assert ) {
+  'use strict';
+
+  var done = assert.async();
+
+  function onInitChange() {
+    assert.ok( false, 'change should not trigger on init' );
+  }
+
+  new Flickity( '#change', {
+    on: {
+      change: onInitChange,
+      ready: function() {
+        // define events last to first for strict
+        var onChangeC = function( index ) {
+          assert.equal( index, 0, 'change triggered on select back to 0' );
+          done();
+        };
+
+        var onChangeB = function() {
+          assert.ok( false, 'change should not trigger on same select' );
+        };
+
+        var onSelectB = function( index ) {
+          assert.equal( index, 1, 'select triggered on same select 1' );
+          this.off( 'change', onChangeB );
+          this.once( 'change', onChangeC );
+          this.select( 0, false, true );
+        };
+
+        var onChangeA = function( index ) {
+          assert.equal( index, 1, 'change triggered, selected 1');
+          this.once( 'change', onChangeB );
+          this.once( 'select', onSelectB );
+          // select 1 again
+          this.select( 1, false, true );
+        };
+
+        // kick off
+        this.off( 'change', onInitChange );
+        this.once( 'change', onChangeA );
+        this.select( 1, false, true );
+      }
+    },
+  });
+
+});