Issue #2461087 by Wim Leers, dawehner: Add 'no_cache' route option to mark a route's responses as uncacheable (was: Cron run response should not be cacheable)

Issue #2458289 by Wim Leers: CronRunTest::testAutomaticCron() should test with an authenticated user

Issue #2395395 by alexpott, effulgentsia, Gábor Hojtsy: TestBase lacks a config method to be used consistently in tests

Issue #697760 by sun: Replace getInfo() in tests with native phpDoc + annotations (following PHPUnit).

Issue #2080345 by mrsinguyen: Remove Unused local variable $base_url() from /core/modules/system/lib/Drupal/system/Tests/System/CronRunTest.php.

Issue #2074037 by Wim Leers, effulgentsia: Add drupalPostUrl() — drupalPost()/drupalPostAjax() are for forms only, D8 JS performs non-form HTTP requests.

Issue #1790920 by alexpott, japicoder, LinL, heyrocker: Move cron_last(), node_cron_last() and common_test_cron() to state system.

Issue #1468328 by Berdir: Move file entity info, managed file, and file usage functionality into File module.

Issue #1711070 by kid_icarus, tim.plunkett, xjm, droplet, zendoodles and cam8001: Convert tests to use ::$modules property instead of parent::setUp($modules).

- Patch #1493098 by sun, jcisio, pcambra, Pol, wamilton, Rok Žlender, beejeebus: convert cron settings to configuration system.