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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 /docshell/test/mochitest/test_bug1151421.html | |
| parent | Initial commit. (diff) | |
| download | thunderbird-6bf0a5cb5034a7e684dcc3500e841785237ce2dd.tar.xz thunderbird-6bf0a5cb5034a7e684dcc3500e841785237ce2dd.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 'docshell/test/mochitest/test_bug1151421.html')
| -rw-r--r-- | docshell/test/mochitest/test_bug1151421.html | 61 |
1 files changed, 61 insertions, 0 deletions
diff --git a/docshell/test/mochitest/test_bug1151421.html b/docshell/test/mochitest/test_bug1151421.html new file mode 100644 index 0000000000..0738ee783e --- /dev/null +++ b/docshell/test/mochitest/test_bug1151421.html @@ -0,0 +1,61 @@ +<!DOCTYPE HTML> +<html> +<!-- +https://bugzilla.mozilla.org/show_bug.cgi?id=1151421 +--> +<head> + <title>Test for Bug 1151421</title> + <script src="/tests/SimpleTest/SimpleTest.js"></script> + <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/> +</head> +<body> +<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=1151421">Mozilla Bug 1151421</a> + +<script type="application/javascript"> + +/** Test for Bug 1151421 */ +SimpleTest.waitForExplicitFinish(); + +function childLoad() { + // Spin the event loop so we leave the onload handler. + SimpleTest.executeSoon(childLoad2); +} + +function childLoad2() { + let iframe = document.getElementById("iframe"); + let cw = iframe.contentWindow; + let content = cw.document.getElementById("content"); + + // Create a function to calculate an invariant. + let topPlusOffset = function() { + return Math.round(content.getBoundingClientRect().top + cw.pageYOffset); + }; + + let initialTPO = topPlusOffset(); + + // Scroll the iframe to various positions, and check the TPO. + // Scrolling down to the bottom will adjust the page offset by a fractional amount. + let positions = [-100, 0.17, 0, 1.5, 10.41, 1e6, 12.1]; + + // Run some tests with scrollTo() and ensure we have the same invariant after scrolling. + positions.forEach(function(pos) { + cw.scrollTo(0, pos); + is(topPlusOffset(), initialTPO, "Top plus offset should remain invariant across scrolling."); + }); + + positions.reverse().forEach(function(pos) { + cw.scrollTo(0, pos); + is(topPlusOffset(), initialTPO, "(reverse) Top plus offset should remain invariant across scrolling."); + }); + + SimpleTest.finish(); +} + +</script> + +<!-- When the iframe loads, it calls childLoad(). --> +<br> +<iframe height='100px' id='iframe' src='file_bug1151421.html'></iframe> + +</body> +</html> |