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| author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 17:32:43 +0000 |
|---|---|---|
| committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 17:32:43 +0000 |
| commit | 6bf0a5cb5034a7e684dcc3500e841785237ce2dd (patch) | |
| tree | a68f146d7fa01f0134297619fbe7e33db084e0aa /testing/web-platform/tests/element-timing/css-generated-text.html | |
| parent | Initial commit. (diff) | |
| download | thunderbird-upstream.tar.xz thunderbird-upstream.zip | |
Adding upstream version 1:115.7.0.upstream/1%115.7.0upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'testing/web-platform/tests/element-timing/css-generated-text.html')
| -rw-r--r-- | testing/web-platform/tests/element-timing/css-generated-text.html | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/testing/web-platform/tests/element-timing/css-generated-text.html b/testing/web-platform/tests/element-timing/css-generated-text.html new file mode 100644 index 0000000000..d1bbf5a7ee --- /dev/null +++ b/testing/web-platform/tests/element-timing/css-generated-text.html @@ -0,0 +1,36 @@ +<!DOCTYPE HTML> +<meta charset=utf-8> +<title>Element Timing: observe generated CSS text</title> +<style> +p::before { + content: "Generated text prefix"; +} +body { + margin: 20px; +} +</style> +<body> +<script src="/resources/testharness.js"></script> +<script src="/resources/testharnessreport.js"></script> +<script src="resources/element-timing-helpers.js"></script> +<p elementtiming='my_text' id='text_id'></p> +<script> + async_test(function (t) { + const beforeRender = performance.now(); + assert_implements(window.PerformanceElementTiming, "PerformanceElementTiming is not implemented"); + const observer = new PerformanceObserver( + t.step_func_done(function(entryList) { + assert_equals(entryList.getEntries().length, 1); + const entry = entryList.getEntries()[0]; + checkTextElement(entry, 'my_text', 'text_id', beforeRender, document.getElementById('text_id')); + assert_equals(entry.intersectionRect.left, 20, 'left should be 20.'); + assert_equals(entry.intersectionRect.top, 20, 'top should be 20.'); + // Try a lower bound of height=10, width=80 for the generated text. + assert_greater_than_equal(entry.intersectionRect.right, 100); + assert_greater_than_equal(entry.intersectionRect.bottom, 30); + }) + ); + observer.observe({type: 'element', buffered: true}); + }, 'Generated text content is observable.'); +</script> +</body> |