File-lastModified.html

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This WPT test may be referenced by the following Test IDs:
- /FileAPI/file/File-lastModified.html - WPT Dashboard Interop Dashboard

<!DOCTYPE html>

<meta charset=utf-8>

<title>File's lastModified</title>

<link rel=help href="https://w3c.github.io/FileAPI/#dfn-lastModified">

<script src="/resources/testharness.js"></script>

<script src="/resources/testharnessreport.js"></script>

<script>

"use strict";

promise_test(async t => {

  const before = Date.now();

  const file = new File([], "dummy");

  const after = Date.now();

  await t.step_wait(() => Date.now() > after, "The clock advances beyond construction");

  assert_between_inclusive(file.lastModified, before, after);

}, "lastModified defaults to the time of construction");

</script>