// META: script=resources/test-helpers.js
// META: script=resources/sandboxed-fs-test-helpers.js
// META: script=script-tests/FileSystemWritableFileStream-write.js
// META: script=resources/test-helpers.js
// META: script=resources/sandboxed-fs-test-helpers.js
// META: script=script-tests/FileSystemWritableFileStream-write.js