mozilla-release/testing/web-platform/tests/native-file-system/native_FileSystemWritableFileStream-write-manual.https.tentative.html

<!doctype html>
<meta charset=utf-8>

<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="/resources/testdriver.js"></script>
<script src="/resources/testdriver-vendor.js"></script>
<script src="resources/test-helpers.js"></script>
<script src="resources/native-fs-test-helpers.js"></script>
<script src="script-tests/FileSystemWritableFileStream-write.js"></script>