Adding upstream version 110.0.1.upstream/110.0.1 upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
author: Daniel Baumann <daniel.baumann@progress-linux.org> 2024-04-07 09:22:09 +0000
committer: Daniel Baumann <daniel.baumann@progress-linux.org> 2024-04-07 09:22:09 +0000
commit: 43a97878ce14b72f0981164f87f2e35e14151312 (patch)
tree: 620249daf56c0258faa40cbdcf9cfba06de2a846 /testing/web-platform/tests/largest-contentful-paint/resources
parent: Initial commit. (diff)
download: firefox-43a97878ce14b72f0981164f87f2e35e14151312.tar.xz
firefox-43a97878ce14b72f0981164f87f2e35e14151312.zip
7 files changed, 346 insertions, 0 deletions
diff --git a/testing/web-platform/tests/largest-contentful-paint/resources/iframe-stores-entry.html b/testing/web-platform/tests/largest-contentful-paint/resources/iframe-stores-entry.html
new file mode 100644
index 0000000000..cd60025480
--- /dev/null
+++ b/testing/web-platform/tests/largest-contentful-paint/resources/iframe-stores-entry.html
@@ -0,0 +1,12 @@
+<!DOCTYPE html>
+<html>
+<body>
+<p>Text</p>
+<script>
+  const observer = new PerformanceObserver(entryList => {
+    window.parent.triggerTest(entryList.getEntries()[0]);
+  });
+  observer.observe({type: 'largest-contentful-paint', buffered: true});
+</script>
+</body>
+</html>
diff --git a/testing/web-platform/tests/largest-contentful-paint/resources/invisible-images.js b/testing/web-platform/tests/largest-contentful-paint/resources/invisible-images.js
new file mode 100644
index 0000000000..bad078e35f
--- /dev/null
+++ b/testing/web-platform/tests/largest-contentful-paint/resources/invisible-images.js
@@ -0,0 +1,22 @@
+async_test(t => {
+  assert_implements(window.LargestContentfulPaint, "LargestContentfulPaint is not implemented");
+  const observer = new PerformanceObserver(
+    t.step_func(entryList => {
+       entryList.getEntries().forEach(entry => {
+       // May receive a text entry. Ignore that entry.
+        if (!entry.url) {
+          return;
+        }
+        // The images should not have caused an entry, so fail test.
+        assert_unreached('Should not have received an entry! Received one with id '
+            + entryList.getEntries()[0].id);
+      });
+    })
+  );
+  observer.observe({type: 'largest-contentful-paint', buffered: true});
+  // Images have been added but should not cause entries to be dispatched.
+  // Wait for 500ms and end test, ensuring no entry was created.
+  t.step_timeout(() => {
+    t.done();
+  }, 500);
+}, 'Images with opacity: 0, visibility: hidden, or display: none are not observable by LargestContentfulPaint.');
diff --git a/testing/web-platform/tests/largest-contentful-paint/resources/largest-contentful-paint-helpers.js b/testing/web-platform/tests/largest-contentful-paint/resources/largest-contentful-paint-helpers.js
new file mode 100644
index 0000000000..043587ca65
--- /dev/null
+++ b/testing/web-platform/tests/largest-contentful-paint/resources/largest-contentful-paint-helpers.js
@@ -0,0 +1,152 @@
+const image_delay = 1000;
+const delay_pipe_value = image_delay / 1000;
+
+// Receives an image LargestContentfulPaint |entry| and checks |entry|'s attribute values.
+// The |timeLowerBound| parameter is a lower bound on the loadTime value of the entry.
+// The |options| parameter may contain some string values specifying the following:
+// * 'renderTimeIs0': the renderTime should be 0 (image does not pass Timing-Allow-Origin checks).
+//     When not present, the renderTime should not be 0 (image passes the checks).
+// * 'sizeLowerBound': the |expectedSize| is only a lower bound on the size attribute value.
+//     When not present, |expectedSize| must be exactly equal to the size attribute value.
+function checkImage(entry, expectedUrl, expectedID, expectedSize, timeLowerBound, options = []) {
+  assert_equals(entry.name, '', "Entry name should be the empty string");
+  assert_equals(entry.entryType, 'largest-contentful-paint',
+    "Entry type should be largest-contentful-paint");
+  assert_equals(entry.duration, 0, "Entry duration should be 0");
+  // The entry's url can be truncated.
+  assert_equals(expectedUrl.substr(0, 100), entry.url.substr(0, 100),
+    `Expected URL ${expectedUrl} should at least start with the entry's URL ${entry.url}`);
+  assert_equals(entry.id, expectedID, "Entry ID matches expected one");
+  assert_equals(entry.element, document.getElementById(expectedID),
+    "Entry element is expected one");
+  if (options.includes('skip')) {
+    return;
+  }
+  if (options.includes('renderTimeIs0')) {
+    assert_equals(entry.renderTime, 0, 'renderTime should be 0');
+    assert_between_exclusive(entry.loadTime, timeLowerBound, performance.now(),
+      'loadTime should be between the lower bound and the current time');
+    assert_approx_equals(entry.startTime, entry.loadTime, 0.001,
+      'startTime should be equal to renderTime to the precision of 1 millisecond.');
+  } else {
+    assert_between_exclusive(entry.loadTime, timeLowerBound, entry.renderTime,
+      'loadTime should occur between the lower bound and the renderTime');
+    assert_greater_than_equal(performance.now(), entry.renderTime,
+      'renderTime should occur before the entry is dispatched to the observer.');
+    assert_approx_equals(entry.startTime, entry.renderTime, 0.001,
+      'startTime should be equal to renderTime to the precision of 1 millisecond.');
+  }
+  if (options.includes('sizeLowerBound')) {
+    assert_greater_than(entry.size, expectedSize);
+  } else {
+    assert_equals(entry.size, expectedSize);
+  }
+  if (options.includes('animated')) {
+    assert_greater_than(entry.loadTime, entry.firstAnimatedFrameTime,
+      'firstAnimatedFrameTime should be smaller than loadTime');
+    assert_greater_than(entry.renderTime, entry.firstAnimatedFrameTime,
+      'firstAnimatedFrameTime should be smaller than renderTime');
+    assert_less_than(entry.firstAnimatedFrameTime, image_delay,
+      'firstAnimatedFrameTime should be smaller than the delay applied to the second frame');
+    assert_greater_than(entry.firstAnimatedFrameTime, 0,
+      'firstAnimatedFrameTime should be larger than 0');
+  }
+  if (options.includes('animated-zero')) {
+    assert_equals(entry.firstAnimatedFrameTime, 0, 'firstAnimatedFrameTime should be 0');
+  }
+}
+
+const load_and_observe = url => {
+  return new Promise(resolve => {
+    (new PerformanceObserver(entryList => {
+      for (let entry of entryList.getEntries()) {
+        if (entry.url == url) {
+          resolve(entryList.getEntries()[0]);
+        }
+      }
+    })).observe({ type: 'largest-contentful-paint', buffered: true });
+    const img = new Image();
+    img.id = 'image_id';
+    img.src = url;
+    document.body.appendChild(img);
+  });
+};
+
+const load_video_and_observe = url => {
+  return new Promise(resolve => {
+    (new PerformanceObserver(entryList => {
+      for (let entry of entryList.getEntries()) {
+        if (entry.url == url) {
+          resolve(entryList.getEntries()[0]);
+        }
+      }
+    })).observe({ type: 'largest-contentful-paint', buffered: true });
+    const video = document.createElement("video");
+    video.id = 'video_id';
+    video.src = url;
+    video.autoplay = true;
+    video.muted = true;
+    video.loop = true;
+    document.body.appendChild(video);
+  });
+};
+
+const getLCPStartTime = (identifier) => {
+  return new Promise(resolve => {
+    new PerformanceObserver((entryList, observer) => {
+      entryList.getEntries().forEach(e => {
+        if (e.url.includes(identifier)) {
+          resolve(e);
+          observer.disconnect();
+        }
+      });
+    }).observe({ type: 'largest-contentful-paint', buffered: true });
+  });
+}
+
+const getFCPStartTime = () => {
+  return performance.getEntriesByName('first-contentful-paint')[0];
+}
+
+const add_text = (text) => {
+  const paragraph = document.createElement('p');
+  paragraph.innerHTML = text;
+  document.body.appendChild(paragraph);
+}
+
+const loadImage = (url, shouldBeIgnoredForLCP = false) => {
+  return new Promise(function (resolve, reject) {
+    let image = document.createElement('img');
+    image.addEventListener('load', () => { resolve(image); });
+    image.addEventListener('error', reject);
+    image.src = url;
+    if (shouldBeIgnoredForLCP)
+      image.style.opacity = 0;
+    document.body.appendChild(image);
+  });
+}
+
+const checkLCPEntryForNonTaoImages = (times = {}) => {
+  const lcp = times['lcp'];
+  const fcp = times['fcp'];
+  const lcp_url_components = lcp.url.split('/');
+
+  if (lcp.loadTime <= fcp.startTime) {
+    assert_approx_equals(lcp.startTime, fcp.startTime, 0.001,
+      'LCP start time should be the same as FCP for ' +
+      lcp_url_components[lcp_url_components.length - 1]) +
+      ' when LCP load time is less than FCP.';
+  } else {
+    assert_approx_equals(lcp.startTime, lcp.loadTime, 0.001,
+      'LCP start time should be the same as LCP load time for ' +
+      lcp_url_components[lcp_url_components.length - 1]) +
+      ' when LCP load time is no less than FCP.';
+  }
+
+  assert_equals(lcp.renderTime, 0,
+    'The LCP render time of Non-Tao image should always be 0.');
+}
+
+const raf = () => {
+  return new Promise(resolve => requestAnimationFrame(resolve));
+}
diff --git a/testing/web-platform/tests/largest-contentful-paint/resources/lcp-sw-from-cache.js b/testing/web-platform/tests/largest-contentful-paint/resources/lcp-sw-from-cache.js
new file mode 100644
index 0000000000..c650a0b747
--- /dev/null
+++ b/testing/web-platform/tests/largest-contentful-paint/resources/lcp-sw-from-cache.js
@@ -0,0 +1,8 @@
+self.addEventListener("fetch", e => {
+    if (e.request.url.endsWith('green.svg')) {
+        e.respondWith(new Response(`<svg xmlns="http://www.w3.org/2000/svg" width="100" height="50">
+        <rect fill="lime" width="100" height="50"/>
+        </svg>
+        `, { headers: { 'Content-Type': 'image/svg+xml' } }));
+    }
+});
diff --git a/testing/web-platform/tests/largest-contentful-paint/resources/lcp-sw.https.html b/testing/web-platform/tests/largest-contentful-paint/resources/lcp-sw.https.html
new file mode 100644
index 0000000000..069a50eae9
--- /dev/null
+++ b/testing/web-platform/tests/largest-contentful-paint/resources/lcp-sw.https.html
@@ -0,0 +1,15 @@
+<!DOCTYPE HTML>
+<meta charset=utf-8>
+
+<body>
+  <script>
+    new PerformanceObserver(entries => {
+        window.parent.postMessage(entries.getEntries()[0].toJSON());
+    }).observe({ entryTypes: ["largest-contentful-paint"] });
+
+    const image = document.createElement("img");
+    image.src = "/images/green.svg";
+    image.id = "theImage";
+    document.body.appendChild(image);
+  </script>
+</body>
diff --git a/testing/web-platform/tests/largest-contentful-paint/resources/mouseover-utils.js b/testing/web-platform/tests/largest-contentful-paint/resources/mouseover-utils.js
new file mode 100644
index 0000000000..1836f2e4ad
--- /dev/null
+++ b/testing/web-platform/tests/largest-contentful-paint/resources/mouseover-utils.js
@@ -0,0 +1,128 @@
+let counter = 0;
+const loadImage = size => {
+  return event => {
+    let zoom;
+    if (location.search.includes("replace")) {
+      zoom = document.getElementById("image");
+    } else {
+      zoom = new Image();
+    }
+    zoom.src=`/images/green-${size}.png`;
+    ++counter;
+    zoom.elementTiming = "zoom" + counter;
+    document.body.appendChild(zoom);
+  }
+};
+const loadBackgroundImage = size => {
+  return event => {
+    const div = document.createElement("div");
+    const [width, height] = size.split("x");
+    ++counter;
+    div.style = `background-image:
+      url(/images/green-${size}.png?${counter}); width: ${width}px; height: ${height}px`;
+    div.elementTiming = "zoom" + counter;
+    document.body.appendChild(div);
+  }
+};
+
+const registerMouseover = background => {
+  const image = document.getElementById("image");
+  const span = document.getElementById("span");
+  const func = background ? loadBackgroundImage : loadImage;
+  image.addEventListener("mouseover", func("100x50"));
+  span.addEventListener("mouseover", func("256x256"));
+}
+
+const dispatch_mouseover = () => {
+  span.dispatchEvent(new Event("mouseover"))
+};
+
+const wait_for_lcp_entries = async entries_expected => {
+  await new Promise(resolve => {
+    let entries_seen = 0;
+    const PO = new PerformanceObserver(list => {
+    const entries = list.getEntries();
+      for (let entry of entries) {
+        if (entry.url) {
+          entries_seen++;
+        }
+      }
+      if (entries_seen == entries_expected) {
+        PO.disconnect();
+        resolve()
+      } else if (entries_seen > entries_expected) {
+        PO.disconnect();
+        reject();
+      }
+    });
+    PO.observe({type: "largest-contentful-paint", buffered: true});
+  });
+};
+const wait_for_element_timing_entry = async identifier => {
+  await new Promise(resolve => {
+    const PO = new PerformanceObserver(list => {
+    const entries = list.getEntries();
+      for (let entry of entries) {
+        if (entry.identifier == identifier) {
+          PO.disconnect();
+          resolve()
+        }
+      }
+    });
+    PO.observe({type: "element", buffered: true});
+  });
+};
+const wait_for_resource_timing_entry = async name => {
+  await new Promise(resolve => {
+    const PO = new PerformanceObserver(list => {
+    const entries = list.getEntries();
+      for (let entry of entries) {
+        if (entry.name.includes(name)) {
+          PO.disconnect();
+          resolve()
+        }
+      }
+    });
+    PO.observe({type: "resource", buffered: true});
+  });
+};
+
+const run_mouseover_test = background => {
+  promise_test(async t => {
+    // await the first LCP entry
+    await wait_for_lcp_entries(1);
+    // Hover over the image
+    registerMouseover(background);
+    if (test_driver) {
+      await new test_driver.Actions().pointerMove(0, 0, {origin: image}).send();
+    }
+    if (!background) {
+      await wait_for_element_timing_entry("zoom1");
+    } else {
+      await wait_for_resource_timing_entry("png?1");
+      await new Promise(r => requestAnimationFrame(r));
+    }
+    // There's only a single LCP entry, because the zoom was skipped.
+    await wait_for_lcp_entries(1);
+
+    // Wait 600 ms as the heuristic is 500 ms.
+    // This will no longer be necessary once the heuristic relies on Task
+    // Attribution.
+    await new Promise(r => step_timeout(r, 600));
+
+    // Hover over the span.
+    if (test_driver) {
+      await new test_driver.Actions().pointerMove(0, 0, {origin: span}).send();
+    }
+    if (!background) {
+      await wait_for_element_timing_entry("zoom2");
+    } else {
+      await wait_for_resource_timing_entry("png?2");
+      await new Promise(r => requestAnimationFrame(r));
+    }
+    // There are 2 LCP entries, as the image loaded due to span hover is a
+    // valid LCP candidate.
+    await wait_for_lcp_entries(2);
+  }, `LCP mouseover heuristics ignore ${background ?
+        "background" : "element"}-based zoom widgets`);
+}
diff --git a/testing/web-platform/tests/largest-contentful-paint/resources/slow-style-change.py b/testing/web-platform/tests/largest-contentful-paint/resources/slow-style-change.py
new file mode 100644
index 0000000000..780d5736c4
--- /dev/null
+++ b/testing/web-platform/tests/largest-contentful-paint/resources/slow-style-change.py
@@ -0,0 +1,9 @@
+import time
+
+def main(request, response):
+    time.sleep(1)
+    return [ ("Content-Type", "text/css")], """
+    #text {
+      font-size: 4em;
+    }
+    """
author	Daniel Baumann <daniel.baumann@progress-linux.org>	2024-04-07 09:22:09 +0000
committer	Daniel Baumann <daniel.baumann@progress-linux.org>	2024-04-07 09:22:09 +0000
commit	43a97878ce14b72f0981164f87f2e35e14151312 (patch)
tree	620249daf56c0258faa40cbdcf9cfba06de2a846 /testing/web-platform/tests/largest-contentful-paint/resources
parent	Initial commit. (diff)
download	firefox-43a97878ce14b72f0981164f87f2e35e14151312.tar.xz firefox-43a97878ce14b72f0981164f87f2e35e14151312.zip