Issue #2807875 by quietone, Jo Fitzgerald, erozqba, phenaproxima: Convert Comment's Migrate source tests to new base class

Issue #2845489 by Jo Fitzgerald, quietone, phenaproxima, ultimike: Add documentation to StaticMap process plugin

Issue #2850797 by maxocub, dawehner, alexpott: Prepare our phpunit tests to be BC compatible with phpunit 5.x/6.x

Issue #2843779 by vaplas, Yogesh Pawar: EntityResource: Provide comprehensive test coverage for ShortcutSet entity

Issue #2866252 by arshadcn, rakesh.gectcr: Refactor \Drupal\Tests\rest\Functional\EntityResource\Block\BlockResourceTestBase::getExpectedCacheTags

Issue #2862947 by michielnugter, Jo Fitzgerald, boaloysius, klausi, alexpott, GoZ: Incorrect field assertions in AssertLegacyTrait

Issue #2865413 by Jo Fitzgerald, GoZ, klausi: Move RegisterSerializationClassesCompilerPassTest.php to correct location

Issue #2866109 by Eric_A: Add composer installer-paths for drupal-custom-modules/themes before 8.3.0

Issue #2780063 by mpdonadio, Jo Fitzgerald, GoZ, boaloysius, klausi, Lendude: Convert web tests to browser tests for datetime and datetime_range modules

Issue #2820490 by mpdonadio, heddn, Manuel Garcia, Jo Fitzgerald, shabana.navas, mikeryan, tstoeckler, quietone, Grayside, phenaproxima, damondt: FormatDate process plugin

Issue #2859029 by maya96, ajmantis, Pavan B S, joe_carvajal, manojbisht_drupal, alexpott, cilefen: Grammar issue with FTP error message

Issue #2782221 by Grimreaper, dawehner, Lendude, alexpott: Result summary Area plugin not displayed when there is no result

Issue #2845743 by pwolanin, tim.plunkett, AbhishekLal, claudiu.cristea, alexpott: Search form needlessly extends EntityForm

Issue #2861622 by alexpott: Running \Drupal\KernelTests\Config\DefaultConfigTest creates a directory called : in DRUPAL_ROOT

Issue #2851759 by FeyP: Properly document pathProcessor property of PathBasedBreadcrumbBuilder class

Issue #2854909 by arshadcn: Update documentation for \Drupal\Core\Render\ElementInfoManagerInterface

Issue #2843752 by arshadcn, Wim Leers: EntityResource: Provide comprehensive test coverage for Item entity

Issue #2843750 by vaplas, sumanthkumarc, Wim Leers: EntityResource: Provide comprehensive test coverage for Shortcut entity

Issue #2843786 by arshadcn: EntityResource: Provide comprehensive test coverage for ImageStyle entity

Issue #2650910 by drpal, Anishnirmal, markdorison, Tom Robert, psend, yannickoo, rachel_norfolk, Wim Leers, droplet: Contextual links button is always rendered even when no links are available (with warm client-side cache)

Issue #2843693 by droplet, michielnugter, xjm, Mixologic, klausi: Random test failure in CKEditor AjaxCss

Issue #2843777 by arshadcn, Wim Leers: EntityResource: Provide comprehensive test coverage for NodeType entity

Issue #2843775 by arshadcn, Wim Leers: EntityResource: Provide comprehensive test coverage for CommentType entity

Issue #2843759 by vaplas, Wim Leers: EntityResource: Provide comprehensive test coverage for SearchPage entity

Revert "Issue #2843756 by vaplas, brentschuddinck, Wim Leers: EntityResource: Provide comprehensive test coverage for FieldStorageConfig entity"

This reverts commit bfaa4f5a.

Issue #2826047 by heddn, Jo Fitzgerald, mikeryan, catch, alexpott: 6-8 user picture migration must create new fids, which can conflict with fids used by other migrations

Issue #2843756 by vaplas, brentschuddinck, Wim Leers: EntityResource: Provide comprehensive test coverage for FieldStorageConfig entity

Issue #2843761 by vaplas, Wim Leers: EntityResource: Provide comprehensive test coverage for ConfigurableLanguage entity

Issue #2843762 by vaplas, Wim Leers: EntityResource: Provide comprehensive test coverage for Action entity

Issue #2822837 by vaplas, martin107, chiranjeeb2410, klausi, dawehner: Replace @expectedException @expectedExceptionMessage with $this->setExpectedException

Issue #2853211 by vaplas, Wim Leers, arshadcn: EntityResource::post() incorrectly assumes that every entity type has a canonical URL

Issue #2843757 by vaplas, Wim Leers, alexpott: EntityResource: Provide comprehensive test coverage for FilterFormat entity

Issue #2847664 by tedbow, drpal, ifrik, lauriii: Edit mode behaves differently if entered in by clicking "quick edit" vs toolbar