Micro-UI/test.html at main · Open-Tech-Foundation/Micro-UI · GitHub

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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Micro-UI Tests</title>
<style>
  body { font-family: monospace; max-width: 900px; margin: 2rem auto; line-height: 1.5; }
  .test { border: 1px solid #ccc; padding: 1rem; margin: 1rem 0; border-radius: 4px; }
  .pass { color: green; }
  .fail { color: red; font-weight: bold; }
  .label { font-weight: bold; margin-bottom: 0.5rem; display: block; }
  video, canvas { max-width: 200px; }
  .log { background: #f4f4f4; padding: 0.5rem; margin-top: 0.5rem; font-size: 0.85rem; white-space: pre-wrap; }
</style>
</head>
<body>
<h1>Micro-UI v0 Tests</h1>
<div id="results"></div>

<script type="module">
import { define, html, update } from "./packages/micro-ui/dist/index.js";

const results = document.getElementById("results");
let passCount = 0;
let failCount = 0;

function log(el, msg) {
  const d = document.createElement("div");
  d.className = "log";
  d.textContent = msg;
  el.appendChild(d);
}

function assert(testId, condition, msg) {
  const section = document.getElementById(testId);
  const span = document.createElement("span");
  if (condition) {
    span.className = "pass";
    span.textContent = "✓ PASS";
    passCount++;
  } else {
    span.className = "fail";
    span.textContent = "✗ FAIL: " + msg;
    failCount++;
  }
  section.appendChild(span);
}

// ── Test 1: Basic text update ──────────────────────────────────────

{
  const section = document.createElement("div");
  section.id = "test1";
  section.className = "test";
  section.innerHTML = '<span class="label">1. Basic text update</span>';
  results.appendChild(section);

  define("t1-counter", (el, props) => {
    let count = Number(props.count || 0);
    return () => html`<span class="count">${count}</span>`;
  });

  const el = document.createElement("t1-counter");
  el.setAttribute("count", "0");
  results.appendChild(el);

  await customElements.whenDefined("t1-counter");
  await new Promise(r => requestAnimationFrame(r));

  const span = el.querySelector(".count");
  assert("test1", span.textContent === "0", `Expected "0" got "${span.textContent}"`);

  // Manually update internal state and re-render
  // Since we can't access closure from outside, we test via the element
  // For this test, we verify initial render works and the element exists
  assert("test1", el.querySelector(".count") !== null, "Count span exists");
}

// ── Test 2: Attribute update ───────────────────────────────────────

{
  const section = document.createElement("div");
  section.id = "test2";
  section.className = "test";
  section.innerHTML = '<span class="label">2. Attribute update</span>';
  results.appendChild(section);

  define("t2-img", (el, props) => {
    let src = props.src || "";
    return () => html`<img src=${src} class="photo">`;
  });

  const el = document.createElement("t2-img");
  el.setAttribute("src", "/a.jpg");
  results.appendChild(el);

  await customElements.whenDefined("t2-img");
  await new Promise(r => requestAnimationFrame(r));

  const img = el.querySelector(".photo");
  assert("test2", img.getAttribute("src") === "/a.jpg", `Expected /a.jpg got ${img.getAttribute("src")}`);
}

// ── Test 3: Event listener update ──────────────────────────────────

{
  const section = document.createElement("div");
  section.id = "test3";
  section.className = "test";
  section.innerHTML = '<span class="label">3. Event listener update</span>';
  results.appendChild(section);

  let clickCount = 0;

  define("t3-btn", (el, props) => {
    let label = props.label || "Click";
    return () => html`<button class="btn" onclick=${() => { clickCount++; label = "Clicked"; update(el); }}>${label}</button>`;
  });

  const el = document.createElement("t3-btn");
  el.setAttribute("label", "Click me");
  results.appendChild(el);

  await customElements.whenDefined("t3-btn");
  await new Promise(r => requestAnimationFrame(r));

  const btn = el.querySelector(".btn");
  assert("test3", btn.textContent === "Click me", `Expected "Click me" got "${btn.textContent}"`);

  btn.click();
  await new Promise(r => requestAnimationFrame(r));

  assert("test3", clickCount === 1, `Expected clickCount 1 got ${clickCount}`);
  assert("test3", btn.textContent === "Clicked", `Expected "Clicked" got "${btn.textContent}"`);
}

// ── Test 4: Nested elements ────────────────────────────────────────

{
  const section = document.createElement("div");
  section.id = "test4";
  section.className = "test";
  section.innerHTML = '<span class="label">4. Nested elements</span>';
  results.appendChild(section);

  define("t4-nested", (el, props) => {
    return () => html`
      <div class="outer">
        <p class="inner">Hello</p>
      </div>
    `;
  });

  const el = document.createElement("t4-nested");
  results.appendChild(el);

  await customElements.whenDefined("t4-nested");
  await new Promise(r => requestAnimationFrame(r));

  const outer = el.querySelector(".outer");
  const inner = el.querySelector(".inner");
  assert("test4", outer !== null, "Outer div exists");
  assert("test4", inner !== null, "Inner p exists");
  assert("test4", inner.textContent === "Hello", `Expected "Hello" got "${inner.textContent}"`);
}

// ── Test 5: Nested Custom Elements ─────────────────────────────────

{
  const section = document.createElement("div");
  section.id = "test5";
  section.className = "test";
  section.innerHTML = '<span class="label">5. Nested Custom Elements</span>';
  results.appendChild(section);

  define("t5-child", (el, props) => {
    return () => html`<span class="child-content">I am a child</span>`;
  });

  define("t5-parent", (el, props) => {
    let name = props.name || "Parent";
    return () => html`
      <div class="parent">
        <h3 class="parent-name">${name}</h3>
        <t5-child></t5-child>
      </div>
    `;
  });

  const el = document.createElement("t5-parent");
  el.setAttribute("name", "Dad");
  results.appendChild(el);

  await customElements.whenDefined("t5-parent");
  await new Promise(r => requestAnimationFrame(r));

  const child = el.querySelector("t5-child");
  const childContent = el.querySelector(".child-content");
  const parentName = el.querySelector(".parent-name");

  assert("test5", child !== null, "Child element exists");
  assert("test5", childContent !== null && childContent.textContent === "I am a child", "Child content rendered");
  assert("test5", parentName.textContent === "Dad", `Expected "Dad" got "${parentName.textContent}"`);
}

// ── Test 6: Input preservation ─────────────────────────────────────

{
  const section = document.createElement("div");
  section.id = "test6";
  section.className = "test";
  section.innerHTML = '<span class="label">6. Input preservation</span>';
  results.appendChild(section);

  let triggerUpdate;

  define("t6-input", (el, props) => {
    let flag = false;
    triggerUpdate = () => { flag = !flag; update(el); };
    return () => html`<input class="field" value="initial" placeholder="type here">`;
  });

  const el = document.createElement("t6-input");
  results.appendChild(el);

  await customElements.whenDefined("t6-input");
  await new Promise(r => requestAnimationFrame(r));

  const input = el.querySelector(".field");
  const originalInput = input;

  // Simulate user typing
  input.value = "user typed here";
  input.focus();

  // Trigger parent update
  triggerUpdate();
  await new Promise(r => requestAnimationFrame(r));

  const inputAfter = el.querySelector(".field");
  assert("test6", inputAfter === originalInput, "Same input DOM node preserved");
  assert("test6", inputAfter.value === "user typed here", `Value preserved: "${inputAfter.value}"`);
}

// ── Test 7: Textarea preservation ──────────────────────────────────

{
  const section = document.createElement("div");
  section.id = "test7";
  section.className = "test";
  section.innerHTML = '<span class="label">7. Textarea preservation</span>';
  results.appendChild(section);

  let triggerUpdate7;

  define("t7-textarea", (el, props) => {
    let flag = false;
    triggerUpdate7 = () => { flag = !flag; update(el); };
    return () => html`<textarea class="area">default text</textarea>`;
  });

  const el = document.createElement("t7-textarea");
  results.appendChild(el);

  await customElements.whenDefined("t7-textarea");
  await new Promise(r => requestAnimationFrame(r));

  const ta = el.querySelector(".area");
  const originalTA = ta;

  ta.value = "user edited textarea";
  triggerUpdate7();
  await new Promise(r => requestAnimationFrame(r));

  const taAfter = el.querySelector(".area");
  assert("test7", taAfter === originalTA, "Same textarea DOM node preserved");
  assert("test7", taAfter.value === "user edited textarea", `Value preserved: "${taAfter.value}"`);
}

// ── Test 8: Select preservation ────────────────────────────────────

{
  const section = document.createElement("div");
  section.id = "test8";
  section.className = "test";
  section.innerHTML = '<span class="label">8. Select preservation</span>';
  results.appendChild(section);

  let triggerUpdate8;

  define("t8-select", (el, props) => {
    let flag = false;
    triggerUpdate8 = () => { flag = !flag; update(el); };
    return () => html`
      <select class="sel">
        <option value="a">A</option>
        <option value="b">B</option>
        <option value="c">C</option>
      </select>
    `;
  });

  const el = document.createElement("t8-select");
  results.appendChild(el);

  await customElements.whenDefined("t8-select");
  await new Promise(r => requestAnimationFrame(r));

  const sel = el.querySelector(".sel");
  const originalSel = sel;

  sel.value = "b";
  triggerUpdate8();
  await new Promise(r => requestAnimationFrame(r));

  const selAfter = el.querySelector(".sel");
  assert("test8", selAfter === originalSel, "Same select DOM node preserved");
  assert("test8", selAfter.value === "b", `Selection preserved: "${selAfter.value}"`);
}

// ── Test 9: Video preservation ─────────────────────────────────────

{
  const section = document.createElement("div");
  section.id = "test9";
  section.className = "test";
  section.innerHTML = '<span class="label">9. Video preservation</span>';
  results.appendChild(section);

  let triggerUpdate9;

  define("t9-video", (el, props) => {
    let flag = false;
    triggerUpdate9 = () => { flag = !flag; update(el); };
    return () => html`<video class="vid" src="test.mp4" controls width="200"></video>`;
  });

  const el = document.createElement("t9-video");
  results.appendChild(el);

  await customElements.whenDefined("t9-video");
  await new Promise(r => requestAnimationFrame(r));

  const vid = el.querySelector(".vid");
  const originalVid = vid;

  // Modify some property to verify preservation
  vid.muted = true;

  triggerUpdate9();
  await new Promise(r => requestAnimationFrame(r));

  const vidAfter = el.querySelector(".vid");
  assert("test9", vidAfter === originalVid, "Same video DOM node preserved");
  assert("test9", vidAfter.muted === true, `Video property preserved: muted=${vidAfter.muted}`);
}

// ── Test 10: Canvas preservation ───────────────────────────────────

{
  const section = document.createElement("div");
  section.id = "test10";
  section.className = "test";
  section.innerHTML = '<span class="label">10. Canvas preservation</span>';
  results.appendChild(section);

  let triggerUpdate10;

  define("t10-canvas", (el, props) => {
    let flag = false;
    triggerUpdate10 = () => { flag = !flag; update(el); };
    return () => html`<canvas class="cv" width="100" height="100"></canvas>`;
  });

  const el = document.createElement("t10-canvas");
  results.appendChild(el);

  await customElements.whenDefined("t10-canvas");
  await new Promise(r => requestAnimationFrame(r));

  const cv = el.querySelector(".cv");
  const originalCv = cv;

  // Draw on canvas
  const ctx = cv.getContext("2d");
  ctx.fillStyle = "red";
  ctx.fillRect(10, 10, 50, 50);

  triggerUpdate10();
  await new Promise(r => requestAnimationFrame(r));

  const cvAfter = el.querySelector(".cv");
  assert("test10", cvAfter === originalCv, "Same canvas DOM node preserved");

  // Verify canvas content survived
  const ctxAfter = cvAfter.getContext("2d");
  const pixel = ctxAfter.getImageData(25, 25, 1, 1).data;
  assert("test10", pixel[0] === 255 && pixel[1] === 0, `Canvas content preserved: rgb(${pixel[0]},${pixel[1]},${pixel[2]})`);
}

// ── Test 11: iframe preservation ───────────────────────────────────

{
  const section = document.createElement("div");
  section.id = "test11";
  section.className = "test";
  section.innerHTML = '<span class="label">11. iframe preservation</span>';
  results.appendChild(section);

  let triggerUpdate11;

  define("t11-iframe", (el, props) => {
    let flag = false;
    triggerUpdate11 = () => { flag = !flag; update(el); };
    return () => html`<iframe class="frame" src="about:blank" width="200" height="100"></iframe>`;
  });

  const el = document.createElement("t11-iframe");
  results.appendChild(el);

  await customElements.whenDefined("t11-iframe");
  await new Promise(r => requestAnimationFrame(r));

  const frame = el.querySelector(".frame");
  const originalFrame = frame;

  triggerUpdate11();
  await new Promise(r => requestAnimationFrame(r));

  const frameAfter = el.querySelector(".frame");
  assert("test11", frameAfter === originalFrame, "Same iframe DOM node preserved");
}

// ── Test 12: Conditional rendering ─────────────────────────────────

{
  const section = document.createElement("div");
  section.id = "test12";
  section.className = "test";
  section.innerHTML = '<span class="label">12. Conditional rendering</span>';
  results.appendChild(section);

  let triggerUpdate12;
  let showFlag = true;

  define("t12-cond", (el, props) => {
    triggerUpdate12 = () => { showFlag = !showFlag; update(el); };
    return () => html`
      <div class="wrapper">
        ${showFlag ? html`<span class="yes">Shown</span>` : null}
      </div>
    `;
  });

  const el = document.createElement("t12-cond");
  results.appendChild(el);

  await customElements.whenDefined("t12-cond");
  await new Promise(r => requestAnimationFrame(r));

  assert("test12", el.querySelector(".yes") !== null, "Element visible when showFlag=true");

  triggerUpdate12();
  await new Promise(r => requestAnimationFrame(r));

  assert("test12", el.querySelector(".yes") === null, "Element hidden when showFlag=false");

  triggerUpdate12();
  await new Promise(r => requestAnimationFrame(r));

  assert("test12", el.querySelector(".yes") !== null, "Element visible again after toggle back");
}

// ── Test 13: Array rendering ───────────────────────────────────────

{
  const section = document.createElement("div");
  section.id = "test13";
  section.className = "test";
  section.innerHTML = '<span class="label">13. Array rendering</span>';
  results.appendChild(section);

  let triggerUpdate13;
  let items = ["Apple", "Banana", "Cherry"];

  define("t13-list", (el, props) => {
    triggerUpdate13 = () => { items = ["Apple", "Date", "Cherry", "Elderberry"]; update(el); };
    return () => html`
      <ul class="fruits">
        ${items.map(item => html`<li>${item}</li>`)}
      </ul>
    `;
  });

  const el = document.createElement("t13-list");
  results.appendChild(el);

  await customElements.whenDefined("t13-list");
  await new Promise(r => requestAnimationFrame(r));

  let lis = el.querySelectorAll("li");
  assert("test13", lis.length === 3, `Expected 3 items, got ${lis.length}`);
  assert("test13", lis[0].textContent === "Apple", `First item: "${lis[0].textContent}"`);
  assert("test13", lis[1].textContent === "Banana", `Second item: "${lis[1].textContent}"`);
  assert("test13", lis[2].textContent === "Cherry", `Third item: "${lis[2].textContent}"`);

  // Save reference to first li
  const firstLi = lis[0];

  triggerUpdate13();
  await new Promise(r => requestAnimationFrame(r));

  lis = el.querySelectorAll("li");
  assert("test13", lis.length === 4, `Expected 4 items after update, got ${lis.length}`);
  assert("test13", lis[0].textContent === "Apple", `First item after: "${lis[0].textContent}"`);
  assert("test13", lis[0] === firstLi, "First li DOM node reused (positional reconciliation)");
}

// ── Test 14: Nested component state ────────────────────────────────

{
  const section = document.createElement("div");
  section.id = "test14";
  section.className = "test";
  section.innerHTML = '<span class="label">14. Nested component state</span>';
  results.appendChild(section);

  let childUpdateCount = 0;

  define("t14-child", (el, props) => {
    let count = Number(props.start || 0);
    return () => html`
      <div class="child-wrap">
        <span class="child-val">${count}</span>
        <button class="child-btn" onclick=${() => { count++; childUpdateCount++; update(el); }}>+1</button>
      </div>
    `;
  });

  let parentTrigger;

  define("t14-parent", (el, props) => {
    let flag = false;
    parentTrigger = () => { flag = !flag; update(el); };
    return () => html`
      <div class="parent-wrap">
        <t14-child start="5"></t14-child>
      </div>
    `;
  });

  const el = document.createElement("t14-parent");
  results.appendChild(el);

  await customElements.whenDefined("t14-parent");
  await new Promise(r => requestAnimationFrame(r));

  const childVal = el.querySelector(".child-val");
  assert("test14", childVal.textContent === "5", `Child initial value: "${childVal.textContent}"`);

  // Click child button
  el.querySelector(".child-btn").click();
  await new Promise(r => requestAnimationFrame(r));

  assert("test14", childVal.textContent === "6", `Child value after click: "${childVal.textContent}"`);
  assert("test14", childUpdateCount === 1, `Child update count: ${childUpdateCount}`);

  // Trigger parent update - child should retain its state
  const childEl = el.querySelector("t14-child");
  parentTrigger();
  await new Promise(r => requestAnimationFrame(r));

  const childValAfter = el.querySelector(".child-val");
  assert("test14", childValAfter.textContent === "6", `Child value after parent update: "${childValAfter.textContent}"`);
}

// ── Test 15: Multiple instances ────────────────────────────────────

{
  const section = document.createElement("div");
  section.id = "test15";
  section.className = "test";
  section.innerHTML = '<span class="label">15. Multiple instances</span>';
  results.appendChild(section);

  define("t15-counter", (el, props) => {
    let count = Number(props.start || 0);
    return () => html`
      <div class="counter-wrap">
        <span class="val">${count}</span>
        <button class="inc" onclick=${() => { count++; update(el); }}>+1</button>
      </div>
    `;
  });

  const el1 = document.createElement("t15-counter");
  el1.setAttribute("start", "0");
  const el2 = document.createElement("t15-counter");
  el2.setAttribute("start", "10");
  results.appendChild(el1);
  results.appendChild(el2);

  await customElements.whenDefined("t15-counter");
  await new Promise(r => requestAnimationFrame(r));

  const val1 = el1.querySelector(".val");
  const val2 = el2.querySelector(".val");

  assert("test15", val1.textContent === "0", `Instance 1 initial: "${val1.textContent}"`);
  assert("test15", val2.textContent === "10", `Instance 2 initial: "${val2.textContent}"`);

  // Click instance 1
  el1.querySelector(".inc").click();
  await new Promise(r => requestAnimationFrame(r));

  assert("test15", val1.textContent === "1", `Instance 1 after click: "${val1.textContent}"`);
  assert("test15", val2.textContent === "10", `Instance 2 unchanged: "${val2.textContent}"`);

  // Click instance 2
  el2.querySelector(".inc").click();
  await new Promise(r => requestAnimationFrame(r));

  assert("test15", val1.textContent === "1", `Instance 1 still: "${val1.textContent}"`);
  assert("test15", val2.textContent === "11", `Instance 2 after click: "${val2.textContent}"`);
}

// ── Summary ────────────────────────────────────────────────────────

await new Promise(r => setTimeout(r, 200));

const summary = document.createElement("div");
summary.className = "test";
summary.innerHTML = `<strong>Results: <span class="pass">${passCount} passed</span>, <span class="${failCount ? 'fail' : ''}">${failCount} failed</span></strong>`;
results.appendChild(summary);

</script>
</body>
</html>