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989 lines (918 loc) · 37.4 KB
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<html lang="en">
<head>
<title>moxi test suite</title>
<script>
let tests = [];
let currentTest = null;
let passed = 0;
let failed = 0;
let find = (selector) => currentTest.testElt.querySelector(selector);
function test(code){
let currentScript = document.currentScript;
let testElt = currentScript.closest('div');
tests.push(async ()=>{
currentTest.testElt = testElt;
try {
await code();
testElt.classList.add("passed");
testElt.insertAdjacentHTML('beforeend', `<p>Passed</p>`)
passed++;
document.querySelector(".passed-info").querySelector("output").innerText = passed.toString();
} catch (e) {
testElt.classList.add("failed");
testElt.insertAdjacentHTML('beforeend', `<p>ERROR: ${e}</p>`)
failed++;
document.querySelector(".failed-info").querySelector("output").innerText = failed.toString();
} finally {
currentTest = null;
}
})
}
function sleep(ms) {
return new Promise((resolve) => setTimeout(resolve, ms));
}
function assertEq(actual, expected, trim) {
if (expected !== (trim ? actual?.trim() : actual)) {
console.error("Expected", expected, "found", actual);
throw `Expected ${expected} found ${actual}`
}
}
document.addEventListener('DOMContentLoaded', async () => {
for (let i = 0; i < document.querySelectorAll(".test").length; i++){
const testBlock = document.querySelectorAll(".test")[i];
testBlock.querySelector("h3").insertAdjacentHTML("beforeend", ` - <a id='test${i}' href="test.html?test${i}">run</a>`)
let scriptElt = testBlock.querySelector("script");
scriptElt.insertAdjacentHTML("beforebegin", `<b>Code:</b><pre></pre>`)
scriptElt.previousElementSibling.innerText = scriptElt.innerText.replaceAll(/^ {8}/gm, '') + "\n";
if (location.search.indexOf("?test") === 0) {
let index = parseInt(location.search.substring(5));
if (index !== i) {
testBlock.setAttribute("mx-ignore", 'true');
} else {
testBlock.scrollIntoView()
}
}
}
setTimeout(async ()=>{
for (let i = 0; i < tests.length; i++){
if (location.search.indexOf("?test") === 0) {
let index = parseInt(location.search.substring(5));
if (index !== i) continue;
}
currentTest = tests[i];
await currentTest();
}
})
});
</script>
<script src="moxi.js"></script>
<style>
.test {
padding: 8px;
margin: 8px;
}
.passed {
border: 3px solid green;
}
.failed {
border: 3px solid red;
}
.passed-info {
color: green;
}
.failed-info {
color: red;
}
pre {
padding: 4px;
margin: 12px;
border: 1px solid rgb(128, 128, 128);
background-color: whitesmoke;
}
body.hide-passed .passed {
display: none;
}
</style>
</head>
<body>
<header>
<h1>🥊 moxi test suite</h1>
<div>
<div class="passed-info">Passed: <output></output></div>
<div class="failed-info">Failed: <output></output></div>
<a href="javascript:document.body.classList.toggle('hide-passed')">Toggle Passed</a><br/>
<a href="test.html">Run All</a>
</div>
</header>
<main>
<section id="bindings">
<h2>Event bindings</h2>
<div class="test">
<h3>on-click fires handler</h3>
<script>
test(async () => {
window.__t1 = null;
find('button').click();
assertEq(window.__t1, true);
})
</script>
<button on-click="window.__t1 = true">go</button>
</div>
<div class="test">
<h3>handler's `this` is the element</h3>
<script>
test(async () => {
window.__t2 = null;
find('#b2').click();
assertEq(window.__t2, "b2");
})
</script>
<button id="b2" on-click="window.__t2 = this.id">go</button>
</div>
<div class="test">
<h3>handler receives event parameter</h3>
<script>
test(async () => {
window.__t3 = null;
find('button').click();
assertEq(window.__t3, "click");
})
</script>
<button on-click="window.__t3 = event.type">go</button>
</div>
<div class="test">
<h3>multiple on- attributes on one element</h3>
<script>
test(async () => {
window.__t4a = 0; window.__t4b = 0;
let btn = find('button');
btn.click();
btn.dispatchEvent(new CustomEvent("custom", {detail: 5}));
assertEq(window.__t4a, 1);
assertEq(window.__t4b, 5);
})
</script>
<button on-click="window.__t4a++" on-custom="window.__t4b += event.detail">go</button>
</div>
<div class="test">
<h3>mx-ignore skips descendants</h3>
<script>
test(async () => {
window.__t5 = 0;
find('button').click();
assertEq(window.__t5, 0);
})
</script>
<div mx-ignore><button on-click="window.__t5++">go</button></div>
</div>
<div class="test">
<h3>mx-ignore on the element itself skips init</h3>
<script>
test(async () => {
window.__t11 = 0;
find('button').click();
assertEq(window.__t11, 0);
})
</script>
<button mx-ignore on-click="window.__t11++">go</button>
</div>
<div class="test">
<h3>MutationObserver picks up dynamically added elements</h3>
<script>
test(async () => {
window.__t6 = 0;
find('#host6').innerHTML = `<button on-click="window.__t6++">go</button>`;
await sleep(30);
find('#host6 button').click();
assertEq(window.__t6, 1);
})
</script>
<div id="host6"></div>
</div>
<div class="test">
<h3>on- handles colon-separated event names (fx:after)</h3>
<script>
test(async () => {
window.__t10 = null;
find('#p3').dispatchEvent(new CustomEvent("fx:after", {detail: {ok: 42}, bubbles: true}));
assertEq(window.__t10, 42);
})
</script>
<div id="p3" on-fx:after="window.__t10 = event.detail.ok">x</div>
</div>
<div class="test">
<h3>.cc modifier converts kebab-case attribute name to camelCase event</h3>
<script>
test(async () => {
window.__cc1 = 0
// attribute is on-my-custom-event.cc, lowercased by HTML to on-my-custom-event.cc
// .cc modifier collapses hyphens -> myCustomEvent
find('#cc1').dispatchEvent(new CustomEvent("myCustomEvent", {bubbles: true}))
// dispatch the lowercase form too: should NOT fire (proves we listen for the camel form)
find('#cc1').dispatchEvent(new CustomEvent("my-custom-event", {bubbles: true}))
assertEq(window.__cc1, 1)
})
</script>
<div id="cc1" on-my-custom-event.cc="window.__cc1++">x</div>
</div>
<div class="test">
<h3>without .cc, kebab-case attribute names listen for kebab-case events</h3>
<script>
test(async () => {
window.__cc2 = 0
find('#cc2').dispatchEvent(new CustomEvent("my-custom-event", {bubbles: true}))
find('#cc2').dispatchEvent(new CustomEvent("myCustomEvent", {bubbles: true}))
// only the kebab form should match
assertEq(window.__cc2, 1)
})
</script>
<div id="cc2" on-my-custom-event="window.__cc2++">x</div>
</div>
<div class="test">
<h3>event.detail keys are exposed as bare names inside the handler</h3>
<script>
test(async () => {
window.__d1 = null;
find('#d1').dispatchEvent(new CustomEvent("fx:config", {detail: {cfg: {x: 7}}, bubbles: true}));
assertEq(window.__d1, 7);
})
</script>
<div id="d1" on-fx:config="window.__d1 = cfg.x">x</div>
</div>
<div class="test">
<h3>writes to bare-name detail values propagate back to event.detail</h3>
<script>
test(async () => {
let cfg = { name: 'before' };
find('#d2').dispatchEvent(new CustomEvent("fx:config", {detail: {cfg}, bubbles: true}));
// mutating cfg.name through bare-name access should hit the same object
assertEq(cfg.name, 'after');
// and reassigning cfg itself should land back on the detail
let detail = {cfg: {name: 'old'}};
find('#d3').dispatchEvent(new CustomEvent("fx:config", {detail, bubbles: true}));
assertEq(detail.cfg.name, 'replaced');
})
</script>
<div id="d2" on-fx:config="cfg.name = 'after'">x</div>
<div id="d3" on-fx:config="cfg = {name: 'replaced'}">x</div>
</div>
<div class="test">
<h3>handler still works when event has no detail</h3>
<script>
test(async () => {
window.__d4 = 0;
// CustomEvent always has detail, but generic Event has detail = undefined
find('#d4').dispatchEvent(new Event("plain", {bubbles: true}));
assertEq(window.__d4, 1);
})
</script>
<div id="d4" on-plain="window.__d4++">x</div>
</div>
<div class="test">
<h3>re-processing does not double-bind</h3>
<script>
test(async () => {
window.__t9 = 0;
let btn = find('#p2');
btn.dispatchEvent(new CustomEvent("mx:process", {bubbles: true}));
btn.click();
assertEq(window.__t9, 1);
})
</script>
<button id="p2" on-click="window.__t9++">go</button>
</div>
<div class="test">
<h3>elt.__moxi exposes handler for event name</h3>
<script>
test(async () => {
assertEq(typeof find('#p1').__moxi.click, "function");
})
</script>
<button id="p1" on-click="">go</button>
</div>
<div class="test">
<h3>mx:init preventDefault blocks binding</h3>
<script>
test(async () => {
window.__t7 = 0;
let handler = (e) => { if (e.target.matches("[mx-cancel]")) e.preventDefault() };
document.addEventListener("mx:init", handler);
currentTest.testElt.insertAdjacentHTML('beforeend', `<button mx-cancel on-click="window.__t7++">go</button>`);
await sleep(30);
find('[mx-cancel]').click();
document.removeEventListener("mx:init", handler);
assertEq(window.__t7, 0);
})
</script>
</div>
<div class="test">
<h3>mx:inited fires on initialized elements</h3>
<script>
test(async () => {
let fired = false;
let handler = (e) => { if (e.target.matches("[data-inited]")) fired = true };
document.addEventListener("mx:inited", handler, true);
currentTest.testElt.insertAdjacentHTML('beforeend', `<button data-inited on-click="">go</button>`);
await sleep(30);
document.removeEventListener("mx:inited", handler, true);
assertEq(fired, true);
})
</script>
</div>
<div class="test">
<h3>on-init fires immediately at bind time</h3>
<script>
test(async () => {
assertEq(find('#i1').dataset.inited, "i1");
})
</script>
<div id="i1" on-init="this.dataset.inited = this.id"></div>
</div>
</section>
<section id="query">
<h2>q() query helper</h2>
<div class="test">
<h3>q('next output') sets property on following element</h3>
<script>
test(async () => {
find('button').click();
assertEq(find('output').innerText, "hi");
})
</script>
<button on-click="q('next output').innerText = 'hi'">go</button><output></output>
</div>
<div class="test">
<h3>q('prev output') sets property on preceding element</h3>
<script>
test(async () => {
find('button').click();
assertEq(find('output').innerText, "yo");
})
</script>
<output></output><button on-click="q('prev output').innerText = 'yo'">go</button>
</div>
<div class="test">
<h3>q('closest form') walks up ancestors</h3>
<script>
test(async () => {
find('button').click();
assertEq(find('form').dataset.f, "ok");
})
</script>
<form data-f=""><button on-click.halt="q('closest form').dataset.f = 'ok'">go</button></form>
</div>
<div class="test">
<h3>q('first .r16') and q('last .r16')</h3>
<script>
test(async () => {
find('button').click();
let rs = currentTest.testElt.querySelectorAll('.r16');
assertEq(rs[0].innerText, "A");
assertEq(rs[1].innerText, "");
assertEq(rs[2].innerText, "Z");
})
</script>
<button on-click="q('first .r16').innerText = 'A'; q('last .r16').innerText = 'Z'">go</button>
<p class="r16"></p><p class="r16"></p><p class="r16"></p>
</div>
<div class="test">
<h3>q('.all17') is document-scoped and applies to all matches</h3>
<script>
test(async () => {
find('button').click();
let ps = currentTest.testElt.querySelectorAll('.all17');
assertEq(ps[0].innerText, "x");
assertEq(ps[1].innerText, "x");
})
</script>
<button on-click="q('.all17').innerText = 'x'">go</button>
<p class="all17"></p><p class="all17"></p>
</div>
<div class="test">
<h3>q proxy invokes method on all matches</h3>
<script>
test(async () => {
find('button').click();
let bs = currentTest.testElt.querySelectorAll('.box18');
assertEq(bs[0].dataset.k, "v");
assertEq(bs[1].dataset.k, "v");
})
</script>
<button on-click="q('.box18').setAttribute('data-k', 'v')">go</button>
<i class="box18"></i><i class="box18"></i>
</div>
<div class="test">
<h3>q proxy recurses into object properties (classList.add)</h3>
<script>
test(async () => {
find('button').click();
let rows = currentTest.testElt.querySelectorAll('.row19');
assertEq(rows[0].classList.contains('sel'), true);
assertEq(rows[1].classList.contains('sel'), true);
})
</script>
<button on-click="q('.row19').classList.add('sel')">go</button>
<div class="row19"></div><div class="row19"></div>
</div>
<div class="test">
<h3>q proxy recurses into object property sets (style.color)</h3>
<script>
test(async () => {
find('button').click();
let rows = currentTest.testElt.querySelectorAll('.row20');
assertEq(rows[0].style.color, "red");
assertEq(rows[1].style.color, "red");
})
</script>
<button on-click="q('.row20').style.color = 'red'">go</button>
<div class="row20"></div><div class="row20"></div>
</div>
<div class="test">
<h3>q with no matches does not throw on set</h3>
<script>
test(async () => {
let threw = false;
try { find('button').click() } catch (e) { threw = true }
assertEq(threw, false);
})
</script>
<button on-click="q('next output').innerText = 'x'">go</button>
</div>
<div class="test">
<h3>trigger(type, detail) bubbles a CustomEvent from this</h3>
<script>
test(async () => {
window.__ts1 = null;
find('button').click();
assertEq(window.__ts1, 99);
})
</script>
<div on-pong="window.__ts1 = event.detail"><button on-click="q(this).trigger('pong', 99)">go</button></div>
</div>
<div class="test">
<h3>q(...).trigger() dispatches to every matched element</h3>
<script>
test(async () => {
window.__ts2a = 0; window.__ts2b = 0;
find('button').click();
assertEq(window.__ts2a, 7);
assertEq(window.__ts2b, 7);
})
</script>
<button on-click="q('.tg23').trigger('ping', 7)">go</button>
<div class="tg23" on-ping="window.__ts2a = (window.__ts2a || 0) + event.detail"></div>
<div class="tg23" on-ping="window.__ts2b = event.detail"></div>
</div>
<div class="test">
<h3>q('.x33 in this') scopes to this element's subtree</h3>
<script>
test(async () => {
find('#host33').click();
assertEq(find('#outer-x33').innerText, "");
assertEq(find('#inner-x33').innerText, "IN");
})
</script>
<p class="x33" id="outer-x33"></p>
<div id="host33" on-click="q('.x33 in this').innerText = 'IN'">
<p class="x33" id="inner-x33"></p>
</div>
</div>
<div class="test">
<h3>q('.z34 in #bucket34') scopes to the named element</h3>
<script>
test(async () => {
find('button').click();
assertEq(find('#z-out').innerText, "");
assertEq(find('#z-in').innerText, "B");
})
</script>
<p class="z34" id="z-out"></p>
<div id="bucket34"><p class="z34" id="z-in"></p></div>
<button on-click="q('.z34 in #bucket34').innerText = 'B'">go</button>
</div>
<div class="test">
<h3>q(...) is iterable (spread)</h3>
<script>
test(async () => {
window.__it = null;
find('button').click();
assertEq(window.__it, "a,b,c");
})
</script>
<p class="it35">a</p><p class="it35">b</p><p class="it35">c</p>
<button on-click="window.__it = [...q('.it35')].map(e => e.innerText).join(',')">go</button>
</div>
<div class="test">
<h3>q(...) works with for..of</h3>
<script>
test(async () => {
window.__fo = null;
find('button').click();
assertEq(window.__fo, 3);
})
</script>
<p class="fo36">1</p><p class="fo36">2</p>
<button on-click="let sum = 0; for (let e of q('.fo36')) sum += Number(e.innerText); window.__fo = sum">go</button>
</div>
<div class="test">
<h3>q(...).insert('end', html) appends parsed HTML</h3>
<script>
test(async () => {
find('button').click();
let list = find('#ins-list');
assertEq(list.children.length, 2);
assertEq(list.lastElementChild.className, "new");
})
</script>
<ul id="ins-list"><li>a</li></ul>
<button on-click="q('#ins-list').insert('end', '<li class="new">b</li>')">go</button>
</div>
<div class="test">
<h3>q(...).count returns number of matched elements</h3>
<script>
test(async () => {
window.__cc = null;
find('button').click();
assertEq(window.__cc, 3);
})
</script>
<p class="ct38"></p><p class="ct38"></p><p class="ct38"></p>
<button on-click="window.__cc = q('.ct38').count">go</button>
</div>
<div class="test">
<h3>q(...).arr() returns matched elements as an array</h3>
<script>
test(async () => {
window.__aa = null;
find('button').click();
if (!Array.isArray(window.__aa)) throw `expected array, got ${window.__aa}`;
assertEq(window.__aa.length, 3);
assertEq(window.__aa.filter(p => p.classList.contains('ct38a')).length, 3);
})
</script>
<p class="ct38a"></p><p class="ct38a"></p><p class="ct38a"></p>
<button on-click="window.__aa = q('.ct38a').arr()">go</button>
</div>
<div class="test">
<h3>q('first .k39 in #box39') combines direction with scope</h3>
<script>
test(async () => {
find('button').click();
assertEq(find('#k1').innerText, "a");
assertEq(find('#k2').innerText, "F");
assertEq(find('#k3').innerText, "c");
})
</script>
<p class="k39" id="k1">a</p>
<div id="box39">
<p class="k39" id="k2">b</p>
<p class="k39" id="k3">c</p>
</div>
<button on-click="q('first .k39 in #box39').innerText = 'F'">go</button>
</div>
</section>
<section id="helpers">
<h2>Scoped helpers</h2>
<div class="test">
<h3>await wait(ms) delays handler</h3>
<script>
test(async () => {
window.__w1 = null;
find('button').click();
let snap = window.__w1;
await sleep(60);
assertEq(snap, "before");
assertEq(window.__w1, "after");
})
</script>
<button on-click="window.__w1 = 'before'; await wait(30); window.__w1 = 'after'">go</button>
</div>
<div class="test">
<h3>await wait(eventName) resolves with the event</h3>
<script>
test(async () => {
window.__w2 = null;
let btn = find('button');
btn.click();
btn.dispatchEvent(new CustomEvent("pong", {detail: "ok"}));
await sleep(30);
assertEq(window.__w2, "ok");
})
</script>
<button on-click="let e = await wait('pong'); window.__w2 = e.detail">go</button>
</div>
<div class="test">
<h3>await debounce(ms) resolves after delay when not superseded</h3>
<script>
test(async () => {
window.__db1 = 0;
find('button').click();
await sleep(80);
assertEq(window.__db1, 1);
})
</script>
<button on-click="await debounce(40); window.__db1++">go</button>
</div>
<div class="test">
<h3>await debounce(ms) collapses rapid calls to one</h3>
<script>
test(async () => {
window.__db2 = 0;
let btn = find('button');
btn.click(); btn.click(); btn.click();
await sleep(80);
assertEq(window.__db2, 1);
})
</script>
<button on-click="await debounce(40); window.__db2++">go</button>
</div>
<div class="test">
<h3>await debounce(ms): superseded calls do not leave unresolved promises</h3>
<script>
test(async () => {
window.__dbStart = 0; window.__dbFinish = 0; window.__dbAbort = 0;
let btn = find('button');
btn.click(); btn.click(); btn.click();
await sleep(80);
// every handler invocation must finish (resolve or abort): no dangling
// awaits on a debounce promise that never settles
assertEq(window.__dbStart, 3);
assertEq(window.__dbFinish, 1);
assertEq(window.__dbAbort, 2);
})
</script>
<button on-click="window.__dbStart++
try { await debounce(40); window.__dbFinish++ }
catch (e) { window.__dbAbort++ }">go</button>
</div>
<div class="test">
<h3>trigger(type, detail) helper dispatches from current element</h3>
<script>
test(async () => {
let saw = null;
find('#snd55').addEventListener("snd55", (e) => saw = e.detail);
find('button').click();
assertEq(saw, "hello");
})
</script>
<div id="snd55"><button on-click="q(this).trigger('snd55', 'hello')">go</button></div>
</div>
<div class="test">
<h3>take(cls, from, to) moves class between elements</h3>
<script>
test(async () => {
find('button').click();
assertEq(find('#t1').classList.contains('active'), false);
assertEq(find('#t2').classList.contains('active'), true);
})
</script>
<div class="tab31 active" id="t1">a</div>
<div class="tab31" id="t2">b</div>
<button on-click="q('#t2').take('active', '.tab31')">go</button>
</div>
<div class="test">
<h3>transition() invokes the callback</h3>
<script>
test(async () => {
window.__tx = false;
find('button').click();
await sleep(30);
assertEq(window.__tx, true);
})
</script>
<button on-click="transition(() => window.__tx = true)">go</button>
</div>
</section>
<section id="modifiers">
<h2>Event modifiers</h2>
<div class="test">
<h3>.prevent modifier calls preventDefault</h3>
<script>
test(async () => {
window.__p1 = false;
let btn = find('button');
let prevented = false;
btn.addEventListener("click", (e) => { prevented = e.defaultPrevented }, {once: true});
btn.click();
assertEq(window.__p1, true);
assertEq(prevented, true);
})
</script>
<button on-click.prevent="window.__p1 = true">go</button>
</div>
<div class="test">
<h3>.stop modifier blocks bubbling</h3>
<script>
test(async () => {
window.__so = false; window.__si = false;
find('button').click();
assertEq(window.__si, true);
assertEq(window.__so, false);
})
</script>
<div on-click="window.__so = true">
<button on-click.stop="window.__si = true">go</button>
</div>
</div>
<div class="test">
<h3>.prevent.stop applies both modifiers</h3>
<script>
test(async () => {
window.__oc = false;
let btn = find('button');
let prevented = false;
btn.addEventListener("click", (e) => { prevented = e.defaultPrevented }, {once: true});
btn.click();
assertEq(prevented, true);
assertEq(window.__oc, false);
})
</script>
<div on-click="window.__oc = true">
<button on-click.prevent.stop="">go</button>
</div>
</div>
<div class="test">
<h3>.halt modifier prevents default and stops propagation</h3>
<script>
test(async () => {
window.__h1 = false; window.__ho = false;
let btn = find('button');
let prevented = false;
btn.addEventListener("click", (e) => { prevented = e.defaultPrevented }, {once: true});
btn.click();
assertEq(window.__h1, true);
assertEq(window.__ho, false);
assertEq(prevented, true);
})
</script>
<div on-click="window.__ho = true">
<button on-click.halt="window.__h1 = true">go</button>
</div>
</div>
<div class="test">
<h3>.once modifier: handler fires only once</h3>
<script>
test(async () => {
window.__oc1 = 0;
let btn = find('button');
btn.click(); btn.click(); btn.click();
assertEq(window.__oc1, 1);
})
</script>
<button on-click.once="window.__oc1++">go</button>
</div>
<div class="test">
<h3>.self modifier ignores bubbled events from children</h3>
<script>
test(async () => {
window.__sf1 = 0;
find('button').click();
assertEq(window.__sf1, 0);
})
</script>
<div id="sfd" on-click.self="window.__sf1++"><button>child</button></div>
</div>
<div class="test">
<h3>.self modifier fires when event.target is this</h3>
<script>
test(async () => {
window.__sf2 = 0;
find('#sfd2').click();
assertEq(window.__sf2, 1);
})
</script>
<div id="sfd2" on-click.self="window.__sf2++"></div>
</div>
<div class="test">
<h3>.capture modifier fires during capture phase (outer before inner)</h3>
<script>
test(async () => {
window.__cap = [];
find('button').click();
assertEq(window.__cap[0], "div");
assertEq(window.__cap[1], "btn");
})
</script>
<div on-click.capture="window.__cap.push('div')">
<button on-click="window.__cap.push('btn')">go</button>
</div>
</div>
<div class="test">
<h3>.passive modifier: handler still binds and fires</h3>
<script>
test(async () => {
window.__pv = 0;
find('button').click();
assertEq(window.__pv, 1);
})
</script>
<button on-click.passive="window.__pv++">go</button>
</div>
<div class="test">
<h3>.outside modifier ignores clicks inside the element</h3>
<script>
test(async () => {
window.__ous1 = 0;
find('#oud1').click();
assertEq(window.__ous1, 0);
})
</script>
<div id="oud1" on-click.outside="window.__ous1++">panel</div>
</div>
<div class="test">
<h3>.outside modifier fires for clicks outside the element</h3>
<script>
test(async () => {
window.__ous2 = 0;
let spy = document.createElement("span");
document.body.appendChild(spy);
spy.click();
document.body.removeChild(spy);
assertEq(window.__ous2, 1);
})
</script>
<div id="oud2" on-click.outside="window.__ous2++">panel</div>
</div>
</section>
<section id="live">
<h2>live expressions</h2>
<div class="test">
<h3>live evaluates once at bind time</h3>
<script>
test(async () => {
await sleep(30);
assertEq(find('#lo1').innerText, "hi");
})
</script>
<input id="ln1" value="hi">
<output id="lo1" live="this.innerText = q('#ln1').value"></output>
</div>
<div class="test">
<h3>live re-evaluates on input event</h3>
<script>
test(async () => {
let input = find('#ln2');
input.value = "typed";
input.dispatchEvent(new Event("input", {bubbles: true}));
await sleep(30);
assertEq(find('#lo2').innerText, "typed");
})
</script>
<input id="ln2">
<output id="lo2" live="this.innerText = q('#ln2').value"></output>
</div>
<div class="test">
<h3>live re-evaluates on childList mutation</h3>
<script>
test(async () => {
find('#ll3').innerHTML = "<li>a</li><li>b</li><li>c</li>";
await sleep(30);
assertEq(find('#lo3').innerText, "3");
})
</script>
<ul id="ll3"></ul>
<output id="lo3" live="this.innerText = q('#ll3 li').count"></output>
</div>
<div class="test">
<h3>live re-evaluates on attribute mutation</h3>
<script>
test(async () => {
find('#ls4').dataset.x = "two";
await sleep(30);
assertEq(find('#lo4').innerText, "two");
})
</script>
<div id="ls4" data-x="one"></div>
<output id="lo4" live="this.innerText = q('#ls4').dataset.x"></output>
</div>
<div class="test">
<h3>live self-mutation settles without infinite loop</h3>
<script>
test(async () => {
window.__lc = 0;
currentTest.testElt.insertAdjacentHTML('beforeend', `<output id="lo5" live="this.innerText = String(++window.__lc)"></output>`);
await sleep(100);
if (!(window.__lc > 0 && window.__lc < 10)) throw `expected small count, got ${window.__lc}`;
})
</script>
</div>
<div class="test">
<h3>disconnected live expressions stop running</h3>
<script>
test(async () => {
window.__lc6 = 0;
currentTest.testElt.insertAdjacentHTML('beforeend', `<output id="lo6" live="window.__lc6++; this.innerText = String(window.__lc6)"></output>`);
await sleep(50);
find('#lo6').remove();
await sleep(50);
let frozen = window.__lc6;
document.body.appendChild(document.createElement("span"));
await sleep(50);
assertEq(window.__lc6, frozen);
})
</script>
</div>
</section>
</main>
</body>
</html>