| <!DOCTYPE html> |
| <html> |
| <head> |
| <script src="../../resources/js-test.js"></script> |
| </head> |
| <body> |
| <div id="container"> |
| <span>text node</span> |
| <!-- a comment --> |
| </div> |
| <script> |
| description("Tests internals.dumpJSNodeStatistics()"); |
| |
| if (!window.internals) |
| testFailed("This test requires internals object."); |
| else { |
| class MyElement extends HTMLElement {} |
| customElements.define("a-b", MyElement); |
| var before = internals.dumpJSNodeStatistics(); |
| |
| shouldBeTrue("before.nodes.count > 0"); |
| |
| let disconnected = document.createElement("A-B"); |
| |
| var after = internals.dumpJSNodeStatistics(); |
| shouldBe("after[\"A-B\"].count - (before[\"A-B\"]?.count || 0)", "1"); |
| shouldBe("after[\"A-B\"].connected - (before[\"A-B\"]?.connected || 0)", "0"); |
| |
| window.container.innerHTML = "<a-b>Hi!</a-b>" |
| after = internals.dumpJSNodeStatistics(); |
| shouldBe("after[\"A-B\"].count - (before[\"A-B\"]?.count || 0)", "2"); |
| shouldBe("after[\"A-B\"].connected - (before[\"A-B\"]?.connected || 0)", "1"); |
| } |
| </script> |
| </body> |
| </html> |
