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DOM: CEReactions vs script during insertion #20660

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Jan 6, 2020
Merged

DOM: CEReactions vs script during insertion #20660

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27 changes: 27 additions & 0 deletions dom/nodes/Node-appendChild-cereactions-vs-script.window.js
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Original file line number Diff line number Diff line change
@@ -0,0 +1,27 @@
const results = [];
test(() => {
class Script1 extends HTMLScriptElement {
constructor() {
super();
}
connectedCallback() {
results.push("ce connected s1");
}
}
class Script2 extends HTMLScriptElement {
constructor() {
super();
}
connectedCallback() {
results.push("ce connected s2");
}
}
customElements.define("script-1", Script1, { extends: "script" });
customElements.define("script-2", Script2, { extends: "script" });
const s1 = new Script1();
s1.textContent = "results.push('s1')";
const s2 = new Script2();
s2.textContent = "results.push('s2')";
document.body.append(s1, s2);
assert_array_equals(results, ["s1", "s2", "ce connected s1", "ce connected s2"]);
}, "Custom element reactions follow script execution");