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| author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 19:33:14 +0000 |
|---|---|---|
| committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 19:33:14 +0000 |
| commit | 36d22d82aa202bb199967e9512281e9a53db42c9 (patch) | |
| tree | 105e8c98ddea1c1e4784a60a5a6410fa416be2de /testing/web-platform/mozilla/tests/css/css-contain/content-visibility-hidden-document-reflow-count.html | |
| parent | Initial commit. (diff) | |
| download | firefox-esr-36d22d82aa202bb199967e9512281e9a53db42c9.tar.xz firefox-esr-36d22d82aa202bb199967e9512281e9a53db42c9.zip | |
Adding upstream version 115.7.0esr.upstream/115.7.0esr
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'testing/web-platform/mozilla/tests/css/css-contain/content-visibility-hidden-document-reflow-count.html')
| -rw-r--r-- | testing/web-platform/mozilla/tests/css/css-contain/content-visibility-hidden-document-reflow-count.html | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/testing/web-platform/mozilla/tests/css/css-contain/content-visibility-hidden-document-reflow-count.html b/testing/web-platform/mozilla/tests/css/css-contain/content-visibility-hidden-document-reflow-count.html new file mode 100644 index 0000000000..69c1c4b7dd --- /dev/null +++ b/testing/web-platform/mozilla/tests/css/css-contain/content-visibility-hidden-document-reflow-count.html @@ -0,0 +1,44 @@ +<!DOCTYPE html> +<html> + <meta charset="utf-8"> + <title>CSS Contain: Test content-visibility:hidden reflow counts</title> + <link rel="author" title="Martin Robinson" href="mailto:mrobinson@igalia.com"> + + <script src="/resources/testharness.js"></script> + <script src="/resources/testharnessreport.js"></script> + + <body style="content-visibility: hidden;"> + hello + </body> + + <script> + let gUtils = SpecialPowers.getDOMWindowUtils(window); + let gTestContainer = document.getElementById("test"); + + function flushLayout() { + document.documentElement.offsetHeight; + } + + function getReflowCount() { + flushLayout(); + return gUtils.framesReflowed; + } + + function runTestFunctionAndCountReflows(testFunction) { + const beforeCount = getReflowCount(); + testFunction(); + const afterCount = getReflowCount(); + console.log(afterCount - beforeCount); + return afterCount - beforeCount; + } + + test(() => { + flushLayout(); + + const reflows = runTestFunctionAndCountReflows(() => { + document.body.innerText = "something else"; + }); + assert_equals(reflows, 1, "Reflow only triggered on body."); + }, "Changing text of 'content-visibility: hidden' body only triggers a single reflow."); + </script> +</html> |