refactor(apps): Use PHP 5.5 featuresrefactor/apps/php55-features

Signed-off-by: provokateurin <kate@provokateurin.de>

29 files changed, 77 insertions, 77 deletions

diff --git a/apps/dav/tests/unit/CalDAV/PublicCalendarRootTest.php b/apps/dav/tests/unit/CalDAV/PublicCalendarRootTest.php
index 4333754222b..20473616761 100644
--- a/apps/dav/tests/unit/CalDAV/PublicCalendarRootTest.php
+++ b/apps/dav/tests/unit/CalDAV/PublicCalendarRootTest.php
@@ -52,7 +52,7 @@ class PublicCalendarRootTest extends TestCase {
 		parent::setUp();
 
 		$db = \OC::$server->getDatabaseConnection();
-		$this->principal = $this->createMock('OCA\DAV\Connector\Sabre\Principal');
+		$this->principal = $this->createMock(\OCA\DAV\Connector\Sabre\Principal::class);
 		$this->userManager = $this->createMock(IUserManager::class);
 		$this->groupManager = $this->createMock(IGroupManager::class);
 		$this->random = \OC::$server->getSecureRandom();
diff --git a/apps/dav/tests/unit/CalDAV/Search/Request/CalendarSearchReportTest.php b/apps/dav/tests/unit/CalDAV/Search/Request/CalendarSearchReportTest.php
index cbfd4639ed7..0a93fb7a4c8 100644
--- a/apps/dav/tests/unit/CalDAV/Search/Request/CalendarSearchReportTest.php
+++ b/apps/dav/tests/unit/CalDAV/Search/Request/CalendarSearchReportTest.php
@@ -12,7 +12,7 @@ use Test\TestCase;
 class CalendarSearchReportTest extends TestCase {
 	private $elementMap = [
 		'{http://nextcloud.com/ns}calendar-search' =>
-			'OCA\\DAV\\CalDAV\\Search\\Xml\\Request\\CalendarSearchReport',
+			\OCA\DAV\CalDAV\Search\Xml\Request\CalendarSearchReport::class,
 	];
 
 	public function testFoo(): void {
diff --git a/apps/dav/tests/unit/CalDAV/Search/SearchPluginTest.php b/apps/dav/tests/unit/CalDAV/Search/SearchPluginTest.php
index ae4519e2542..4c7d7faaf93 100644
--- a/apps/dav/tests/unit/CalDAV/Search/SearchPluginTest.php
+++ b/apps/dav/tests/unit/CalDAV/Search/SearchPluginTest.php
@@ -51,7 +51,7 @@ class SearchPluginTest extends TestCase {
 
 		$this->assertEquals(
 			$server->xml->elementMap['{http://nextcloud.com/ns}calendar-search'],
-			'OCA\\DAV\\CalDAV\\Search\\Xml\\Request\\CalendarSearchReport'
+			\OCA\DAV\CalDAV\Search\Xml\Request\CalendarSearchReport::class
 		);
 	}
 
diff --git a/apps/dav/tests/unit/CardDAV/BirthdayServiceTest.php b/apps/dav/tests/unit/CardDAV/BirthdayServiceTest.php
index aeee04fd6ee..ec909a5e526 100644
--- a/apps/dav/tests/unit/CardDAV/BirthdayServiceTest.php
+++ b/apps/dav/tests/unit/CardDAV/BirthdayServiceTest.php
@@ -73,7 +73,7 @@ class BirthdayServiceTest extends TestCase {
 		if ($expectedSummary === null) {
 			$this->assertNull($cal);
 		} else {
-			$this->assertInstanceOf('Sabre\VObject\Component\VCalendar', $cal);
+			$this->assertInstanceOf(\Sabre\VObject\Component\VCalendar::class, $cal);
 			$this->assertEquals('-//IDN nextcloud.com//Birthday calendar//EN', $cal->PRODID->getValue());
 			$this->assertTrue(isset($cal->VEVENT));
 			$this->assertEquals($expectedRrule, $cal->VEVENT->RRULE->getValue());
diff --git a/apps/dav/tests/unit/CardDAV/ConverterTest.php b/apps/dav/tests/unit/CardDAV/ConverterTest.php
index c29e0db5070..095e63f0aff 100644
--- a/apps/dav/tests/unit/CardDAV/ConverterTest.php
+++ b/apps/dav/tests/unit/CardDAV/ConverterTest.php
@@ -95,7 +95,7 @@ class ConverterTest extends TestCase {
 		$converter = new Converter($accountManager, $this->userManager, $this->urlGenerator, $this->logger);
 		$vCard = $converter->createCardFromUser($user);
 		if ($expectedVCard !== null) {
-			$this->assertInstanceOf('Sabre\VObject\Component\VCard', $vCard);
+			$this->assertInstanceOf(\Sabre\VObject\Component\VCard::class, $vCard);
 			$cardData = $vCard->jsonSerialize();
 			$this->compareData($expectedVCard, $cardData);
 		} else {
diff --git a/apps/dav/tests/unit/Comments/CommentsPluginTest.php b/apps/dav/tests/unit/Comments/CommentsPluginTest.php
index 5ca0cedf04b..402c95a6aa3 100644
--- a/apps/dav/tests/unit/Comments/CommentsPluginTest.php
+++ b/apps/dav/tests/unit/Comments/CommentsPluginTest.php
@@ -41,7 +41,7 @@ class CommentsPluginTest extends \Test\TestCase {
 			->disableOriginalConstructor()
 			->getMock();
 
-		$this->server = $this->getMockBuilder('\Sabre\DAV\Server')
+		$this->server = $this->getMockBuilder(\Sabre\DAV\Server::class)
 			->setConstructorArgs([$this->tree])
 			->setMethods(['getRequestUri'])
 			->getMock();
diff --git a/apps/dav/tests/unit/Connector/Sabre/BlockLegacyClientPluginTest.php b/apps/dav/tests/unit/Connector/Sabre/BlockLegacyClientPluginTest.php
index c44f52ec713..f1b2a7acd28 100644
--- a/apps/dav/tests/unit/Connector/Sabre/BlockLegacyClientPluginTest.php
+++ b/apps/dav/tests/unit/Connector/Sabre/BlockLegacyClientPluginTest.php
@@ -65,7 +65,7 @@ class BlockLegacyClientPluginTest extends TestCase {
 		$this->expectExceptionMessage('This version of the client is unsupported. Upgrade to <a href="https://nextcloud.com/install/#install-clients">version 1.7.0 or later</a>.');
 
 		/** @var RequestInterface|MockObject $request */
-		$request = $this->createMock('\Sabre\HTTP\RequestInterface');
+		$request = $this->createMock(\Sabre\HTTP\RequestInterface::class);
 		$request
 			->expects($this->once())
 			->method('getHeader')
@@ -97,7 +97,7 @@ class BlockLegacyClientPluginTest extends TestCase {
 		$this->expectExceptionMessage('This version of the client is unsupported. Upgrade to <a href="https://example.com&quot;&gt;&lt;script&gt;alter(&quot;hacked&quot;);&lt;/script&gt;">version 1.7.0 &lt;script&gt;alert(&quot;unsafe&quot;)&lt;/script&gt; or later</a>.');
 
 		/** @var RequestInterface|MockObject $request */
-		$request = $this->createMock('\Sabre\HTTP\RequestInterface');
+		$request = $this->createMock(\Sabre\HTTP\RequestInterface::class);
 		$request
 			->expects($this->once())
 			->method('getHeader')
diff --git a/apps/dav/tests/unit/Connector/Sabre/CommentsPropertiesPluginTest.php b/apps/dav/tests/unit/Connector/Sabre/CommentsPropertiesPluginTest.php
index 1cda0e4dbdb..5454926e532 100644
--- a/apps/dav/tests/unit/Connector/Sabre/CommentsPropertiesPluginTest.php
+++ b/apps/dav/tests/unit/Connector/Sabre/CommentsPropertiesPluginTest.php
@@ -32,7 +32,7 @@ class CommentsPropertiesPluginTest extends \Test\TestCase {
 			->disableOriginalConstructor()
 			->getMock();
 
-		$this->server = $this->getMockBuilder('\Sabre\DAV\Server')
+		$this->server = $this->getMockBuilder(\Sabre\DAV\Server::class)
 			->disableOriginalConstructor()
 			->getMock();
 
@@ -42,7 +42,7 @@ class CommentsPropertiesPluginTest extends \Test\TestCase {
 
 	public function nodeProvider() {
 		$mocks = [];
-		foreach (['\OCA\DAV\Connector\Sabre\File', '\OCA\DAV\Connector\Sabre\Directory', '\Sabre\DAV\INode'] as $class) {
+		foreach ([\OCA\DAV\Connector\Sabre\File::class, \OCA\DAV\Connector\Sabre\Directory::class, \Sabre\DAV\INode::class] as $class) {
 			$mocks[] = $this->getMockBuilder($class)
 				->disableOriginalConstructor()
 				->getMock();
diff --git a/apps/dav/tests/unit/Connector/Sabre/DirectoryTest.php b/apps/dav/tests/unit/Connector/Sabre/DirectoryTest.php
index fb180b7c65d..aa3c8b9ba68 100644
--- a/apps/dav/tests/unit/Connector/Sabre/DirectoryTest.php
+++ b/apps/dav/tests/unit/Connector/Sabre/DirectoryTest.php
@@ -65,7 +65,7 @@ class DirectoryTest extends \Test\TestCase {
 	protected function setUp(): void {
 		parent::setUp();
 
-		$this->view = $this->createMock('OC\Files\View');
+		$this->view = $this->createMock(\OC\Files\View::class);
 		$this->info = $this->createMock('OC\Files\FileInfo');
 		$this->info->method('isReadable')
 			->willReturn(true);
@@ -283,8 +283,8 @@ class DirectoryTest extends \Test\TestCase {
 		$storage->expects($this->any())
 			->method('instanceOfStorage')
 			->willReturnMap([
-				'\OCA\Files_Sharing\SharedStorage' => false,
-				'\OC\Files\Storage\Wrapper\Quota' => false,
+				\OCA\Files_Sharing\SharedStorage::class => false,
+				\OC\Files\Storage\Wrapper\Quota::class => false,
 			]);
 
 		$storage->expects($this->once())
@@ -334,8 +334,8 @@ class DirectoryTest extends \Test\TestCase {
 		$storage->expects($this->any())
 			->method('instanceOfStorage')
 			->willReturnMap([
-				['\OCA\Files_Sharing\SharedStorage', false],
-				['\OC\Files\Storage\Wrapper\Quota', true],
+				[\OCA\Files_Sharing\SharedStorage::class, false],
+				[\OC\Files\Storage\Wrapper\Quota::class, true],
 			]);
 
 		$storage->expects($this->once())
diff --git a/apps/dav/tests/unit/Connector/Sabre/Exception/ForbiddenTest.php b/apps/dav/tests/unit/Connector/Sabre/Exception/ForbiddenTest.php
index c7fb6066ed4..ab3fd2dd8d1 100644
--- a/apps/dav/tests/unit/Connector/Sabre/Exception/ForbiddenTest.php
+++ b/apps/dav/tests/unit/Connector/Sabre/Exception/ForbiddenTest.php
@@ -32,7 +32,7 @@ class ForbiddenTest extends \Test\TestCase {
 EOD;
 
 		$ex = new Forbidden($message, $retry);
-		$server = $this->getMockBuilder('Sabre\DAV\Server')
+		$server = $this->getMockBuilder(\Sabre\DAV\Server::class)
 			->disableOriginalConstructor()
 			->getMock();
 		$ex->serialize($server, $error);
diff --git a/apps/dav/tests/unit/Connector/Sabre/Exception/InvalidPathTest.php b/apps/dav/tests/unit/Connector/Sabre/Exception/InvalidPathTest.php
index 98921d735fa..1139cceb912 100644
--- a/apps/dav/tests/unit/Connector/Sabre/Exception/InvalidPathTest.php
+++ b/apps/dav/tests/unit/Connector/Sabre/Exception/InvalidPathTest.php
@@ -32,7 +32,7 @@ class InvalidPathTest extends \Test\TestCase {
 EOD;
 
 		$ex = new InvalidPath($message, $retry);
-		$server = $this->getMockBuilder('Sabre\DAV\Server')
+		$server = $this->getMockBuilder(\Sabre\DAV\Server::class)
 			->disableOriginalConstructor()
 			->getMock();
 		$ex->serialize($server, $error);
diff --git a/apps/dav/tests/unit/Connector/Sabre/FileTest.php b/apps/dav/tests/unit/Connector/Sabre/FileTest.php
index 55a6783225d..f4f54e2f3cc 100644
--- a/apps/dav/tests/unit/Connector/Sabre/FileTest.php
+++ b/apps/dav/tests/unit/Connector/Sabre/FileTest.php
@@ -94,53 +94,53 @@ class FileTest extends TestCase {
 			[
 				// return false
 				null,
-				'\Sabre\Dav\Exception',
+				\Sabre\Dav\Exception::class,
 				false
 			],
 			[
 				new \OCP\Files\NotPermittedException(),
-				'Sabre\DAV\Exception\Forbidden'
+				\Sabre\DAV\Exception\Forbidden::class
 			],
 			[
 				new \OCP\Files\EntityTooLargeException(),
-				'OCA\DAV\Connector\Sabre\Exception\EntityTooLarge'
+				\OCA\DAV\Connector\Sabre\Exception\EntityTooLarge::class
 			],
 			[
 				new \OCP\Files\InvalidContentException(),
-				'OCA\DAV\Connector\Sabre\Exception\UnsupportedMediaType'
+				\OCA\DAV\Connector\Sabre\Exception\UnsupportedMediaType::class
 			],
 			[
 				new \OCP\Files\InvalidPathException(),
-				'Sabre\DAV\Exception\Forbidden'
+				\Sabre\DAV\Exception\Forbidden::class
 			],
 			[
 				new \OCP\Files\ForbiddenException('', true),
-				'OCA\DAV\Connector\Sabre\Exception\Forbidden'
+				\OCA\DAV\Connector\Sabre\Exception\Forbidden::class
 			],
 			[
 				new \OCP\Files\LockNotAcquiredException('/test.txt', 1),
-				'OCA\DAV\Connector\Sabre\Exception\FileLocked'
+				\OCA\DAV\Connector\Sabre\Exception\FileLocked::class
 			],
 			[
 				new \OCP\Lock\LockedException('/test.txt'),
-				'OCA\DAV\Connector\Sabre\Exception\FileLocked'
+				\OCA\DAV\Connector\Sabre\Exception\FileLocked::class
 			],
 			[
 				new \OCP\Encryption\Exceptions\GenericEncryptionException(),
-				'Sabre\DAV\Exception\ServiceUnavailable'
+				\Sabre\DAV\Exception\ServiceUnavailable::class
 			],
 			[
 				new \OCP\Files\StorageNotAvailableException(),
-				'Sabre\DAV\Exception\ServiceUnavailable'
+				\Sabre\DAV\Exception\ServiceUnavailable::class
 			],
 			[
 				new \Sabre\DAV\Exception('Generic sabre exception'),
-				'Sabre\DAV\Exception',
+				\Sabre\DAV\Exception::class,
 				false
 			],
 			[
 				new \Exception('Generic exception'),
-				'Sabre\DAV\Exception'
+				\Sabre\DAV\Exception::class
 			],
 		];
 	}
diff --git a/apps/dav/tests/unit/Connector/Sabre/FilesPluginTest.php b/apps/dav/tests/unit/Connector/Sabre/FilesPluginTest.php
index 9d8f4e8d4c4..74d36a06f1f 100644
--- a/apps/dav/tests/unit/Connector/Sabre/FilesPluginTest.php
+++ b/apps/dav/tests/unit/Connector/Sabre/FilesPluginTest.php
@@ -124,7 +124,7 @@ class FilesPluginTest extends TestCase {
 
 	public function testGetPropertiesForFile(): void {
 		/** @var \OCA\DAV\Connector\Sabre\File | \PHPUnit\Framework\MockObject\MockObject $node */
-		$node = $this->createTestNode('\OCA\DAV\Connector\Sabre\File');
+		$node = $this->createTestNode(\OCA\DAV\Connector\Sabre\File::class);
 
 		$propFind = new PropFind(
 			'/dummyPath',
@@ -181,7 +181,7 @@ class FilesPluginTest extends TestCase {
 
 	public function testGetPropertiesStorageNotAvailable(): void {
 		/** @var \OCA\DAV\Connector\Sabre\File | \PHPUnit\Framework\MockObject\MockObject $node */
-		$node = $this->createTestNode('\OCA\DAV\Connector\Sabre\File');
+		$node = $this->createTestNode(\OCA\DAV\Connector\Sabre\File::class);
 
 		$propFind = new PropFind(
 			'/dummyPath',
@@ -228,7 +228,7 @@ class FilesPluginTest extends TestCase {
 		);
 
 		/** @var \OCA\DAV\Connector\Sabre\File | \PHPUnit\Framework\MockObject\MockObject $node */
-		$node = $this->createTestNode('\OCA\DAV\Connector\Sabre\File');
+		$node = $this->createTestNode(\OCA\DAV\Connector\Sabre\File::class);
 		$node->expects($this->any())
 			->method('getDavPermissions')
 			->willReturn('DWCKMSR');
@@ -243,7 +243,7 @@ class FilesPluginTest extends TestCase {
 
 	public function testGetPropertiesForDirectory(): void {
 		/** @var \OCA\DAV\Connector\Sabre\Directory | \PHPUnit\Framework\MockObject\MockObject $node */
-		$node = $this->createTestNode('\OCA\DAV\Connector\Sabre\Directory');
+		$node = $this->createTestNode(\OCA\DAV\Connector\Sabre\Directory::class);
 
 		$propFind = new PropFind(
 			'/dummyPath',
@@ -345,7 +345,7 @@ class FilesPluginTest extends TestCase {
 	}
 
 	public function testUpdateProps(): void {
-		$node = $this->createTestNode('\OCA\DAV\Connector\Sabre\File');
+		$node = $this->createTestNode(\OCA\DAV\Connector\Sabre\File::class);
 
 		$testDate = 'Fri, 13 Feb 2015 00:01:02 GMT';
 		$testCreationDate = '2007-08-31T16:47+00:00';
@@ -615,7 +615,7 @@ class FilesPluginTest extends TestCase {
 
 	public function testHasPreview(): void {
 		/** @var \OCA\DAV\Connector\Sabre\Directory | \PHPUnit\Framework\MockObject\MockObject $node */
-		$node = $this->createTestNode('\OCA\DAV\Connector\Sabre\Directory');
+		$node = $this->createTestNode(\OCA\DAV\Connector\Sabre\Directory::class);
 
 		$propFind = new PropFind(
 			'/dummyPath',
diff --git a/apps/dav/tests/unit/Connector/Sabre/FilesReportPluginTest.php b/apps/dav/tests/unit/Connector/Sabre/FilesReportPluginTest.php
index 76a70a93e13..cbc06ae782a 100644
--- a/apps/dav/tests/unit/Connector/Sabre/FilesReportPluginTest.php
+++ b/apps/dav/tests/unit/Connector/Sabre/FilesReportPluginTest.php
@@ -58,7 +58,7 @@ class FilesReportPluginTest extends \Test\TestCase {
 			->disableOriginalConstructor()
 			->getMock();
 
-		$this->server = $this->getMockBuilder('\Sabre\DAV\Server')
+		$this->server = $this->getMockBuilder(\Sabre\DAV\Server::class)
 			->setConstructorArgs([$this->tree])
 			->onlyMethods(['getRequestUri', 'getBaseUri'])
 			->getMock();
@@ -293,9 +293,9 @@ class FilesReportPluginTest extends \Test\TestCase {
 		$result = $this->plugin->findNodesByFileIds($reportTargetNode, ['111', '222']);
 
 		$this->assertCount(2, $result);
-		$this->assertInstanceOf('\OCA\DAV\Connector\Sabre\Directory', $result[0]);
+		$this->assertInstanceOf(\OCA\DAV\Connector\Sabre\Directory::class, $result[0]);
 		$this->assertEquals('first node', $result[0]->getName());
-		$this->assertInstanceOf('\OCA\DAV\Connector\Sabre\File', $result[1]);
+		$this->assertInstanceOf(\OCA\DAV\Connector\Sabre\File::class, $result[1]);
 		$this->assertEquals('second node', $result[1]->getName());
 	}
 
@@ -346,9 +346,9 @@ class FilesReportPluginTest extends \Test\TestCase {
 		$result = $this->plugin->findNodesByFileIds($reportTargetNode, ['111', '222']);
 
 		$this->assertCount(2, $result);
-		$this->assertInstanceOf('\OCA\DAV\Connector\Sabre\Directory', $result[0]);
+		$this->assertInstanceOf(\OCA\DAV\Connector\Sabre\Directory::class, $result[0]);
 		$this->assertEquals('first node', $result[0]->getName());
-		$this->assertInstanceOf('\OCA\DAV\Connector\Sabre\File', $result[1]);
+		$this->assertInstanceOf(\OCA\DAV\Connector\Sabre\File::class, $result[1]);
 		$this->assertEquals('second node', $result[1]->getName());
 	}
 
@@ -410,14 +410,14 @@ class FilesReportPluginTest extends \Test\TestCase {
 		$props1 = $responses[0]->getResponseProperties();
 		$this->assertEquals('111', $props1[200]['{http://owncloud.org/ns}fileid']);
 		$this->assertNull($props1[404]['{DAV:}getcontentlength']);
-		$this->assertInstanceOf('\Sabre\DAV\Xml\Property\ResourceType', $props1[200]['{DAV:}resourcetype']);
+		$this->assertInstanceOf(\Sabre\DAV\Xml\Property\ResourceType::class, $props1[200]['{DAV:}resourcetype']);
 		$resourceType1 = $props1[200]['{DAV:}resourcetype']->getValue();
 		$this->assertEquals('{DAV:}collection', $resourceType1[0]);
 
 		$props2 = $responses[1]->getResponseProperties();
 		$this->assertEquals('1024', $props2[200]['{DAV:}getcontentlength']);
 		$this->assertEquals('222', $props2[200]['{http://owncloud.org/ns}fileid']);
-		$this->assertInstanceOf('\Sabre\DAV\Xml\Property\ResourceType', $props2[200]['{DAV:}resourcetype']);
+		$this->assertInstanceOf(\Sabre\DAV\Xml\Property\ResourceType::class, $props2[200]['{DAV:}resourcetype']);
 		$this->assertCount(0, $props2[200]['{DAV:}resourcetype']->getValue());
 	}
 
diff --git a/apps/dav/tests/unit/Connector/Sabre/ObjectTreeTest.php b/apps/dav/tests/unit/Connector/Sabre/ObjectTreeTest.php
index 4f2e5174325..215098ff56a 100644
--- a/apps/dav/tests/unit/Connector/Sabre/ObjectTreeTest.php
+++ b/apps/dav/tests/unit/Connector/Sabre/ObjectTreeTest.php
@@ -252,6 +252,6 @@ class ObjectTreeTest extends \Test\TestCase {
 		$tree = new \OCA\DAV\Connector\Sabre\ObjectTree();
 		$tree->init($rootNode, $view, $mountManager);
 
-		$this->assertInstanceOf('\Sabre\DAV\INode', $tree->getNodeForPath($path));
+		$this->assertInstanceOf(\Sabre\DAV\INode::class, $tree->getNodeForPath($path));
 	}
 }
diff --git a/apps/dav/tests/unit/Connector/Sabre/RequestTest/DeleteTest.php b/apps/dav/tests/unit/Connector/Sabre/RequestTest/DeleteTest.php
index e7f20fbadfa..24a017b3a8b 100644
--- a/apps/dav/tests/unit/Connector/Sabre/RequestTest/DeleteTest.php
+++ b/apps/dav/tests/unit/Connector/Sabre/RequestTest/DeleteTest.php
@@ -29,7 +29,7 @@ class DeleteTest extends RequestTestCase {
 		$mount->getStorage()->unlink($mount->getInternalPath($internalPath));
 
 		// cache entry still exists
-		$this->assertInstanceOf('\OCP\Files\FileInfo', $view->getFileInfo('foo.txt'));
+		$this->assertInstanceOf(\OCP\Files\FileInfo::class, $view->getFileInfo('foo.txt'));
 
 		$response = $this->request($view, $user, 'pass', 'DELETE', '/foo.txt');
 
diff --git a/apps/dav/tests/unit/Connector/Sabre/RequestTest/EncryptionMasterKeyUploadTest.php b/apps/dav/tests/unit/Connector/Sabre/RequestTest/EncryptionMasterKeyUploadTest.php
index cbaa0c3101b..575e37652ba 100644
--- a/apps/dav/tests/unit/Connector/Sabre/RequestTest/EncryptionMasterKeyUploadTest.php
+++ b/apps/dav/tests/unit/Connector/Sabre/RequestTest/EncryptionMasterKeyUploadTest.php
@@ -23,7 +23,7 @@ class EncryptionMasterKeyUploadTest extends UploadTest {
 	protected function setupUser($name, $password) {
 		$this->createUser($name, $password);
 		$tmpFolder = \OC::$server->getTempManager()->getTemporaryFolder();
-		$this->registerMount($name, '\OC\Files\Storage\Local', '/' . $name, ['datadir' => $tmpFolder]);
+		$this->registerMount($name, \OC\Files\Storage\Local::class, '/' . $name, ['datadir' => $tmpFolder]);
 		// we use the master key
 		\OC::$server->getConfig()->setAppValue('encryption', 'useMasterKey', '1');
 		$this->setupForUser($name, $password);
diff --git a/apps/dav/tests/unit/Connector/Sabre/RequestTest/EncryptionUploadTest.php b/apps/dav/tests/unit/Connector/Sabre/RequestTest/EncryptionUploadTest.php
index f830c54fd0d..86242c32e78 100644
--- a/apps/dav/tests/unit/Connector/Sabre/RequestTest/EncryptionUploadTest.php
+++ b/apps/dav/tests/unit/Connector/Sabre/RequestTest/EncryptionUploadTest.php
@@ -23,7 +23,7 @@ class EncryptionUploadTest extends UploadTest {
 	protected function setupUser($name, $password) {
 		$this->createUser($name, $password);
 		$tmpFolder = \OC::$server->getTempManager()->getTemporaryFolder();
-		$this->registerMount($name, '\OC\Files\Storage\Local', '/' . $name, ['datadir' => $tmpFolder]);
+		$this->registerMount($name, \OC\Files\Storage\Local::class, '/' . $name, ['datadir' => $tmpFolder]);
 		// we use per-user keys
 		\OC::$server->getConfig()->setAppValue('encryption', 'useMasterKey', '0');
 		$this->setupForUser($name, $password);
diff --git a/apps/dav/tests/unit/Connector/Sabre/RequestTest/RequestTestCase.php b/apps/dav/tests/unit/Connector/Sabre/RequestTest/RequestTestCase.php
index 29574d53bca..599e9a8e5ef 100644
--- a/apps/dav/tests/unit/Connector/Sabre/RequestTest/RequestTestCase.php
+++ b/apps/dav/tests/unit/Connector/Sabre/RequestTest/RequestTestCase.php
@@ -58,7 +58,7 @@ abstract class RequestTestCase extends TestCase {
 	protected function setupUser($name, $password) {
 		$this->createUser($name, $password);
 		$tmpFolder = \OC::$server->getTempManager()->getTemporaryFolder();
-		$this->registerMount($name, '\OC\Files\Storage\Local', '/' . $name, ['datadir' => $tmpFolder]);
+		$this->registerMount($name, \OC\Files\Storage\Local::class, '/' . $name, ['datadir' => $tmpFolder]);
 		$this->loginAsUser($name);
 		return new View('/' . $name . '/files');
 	}
diff --git a/apps/dav/tests/unit/Controller/BirthdayCalendarControllerTest.php b/apps/dav/tests/unit/Controller/BirthdayCalendarControllerTest.php
index c7c2bf0e431..ad5d42cae59 100644
--- a/apps/dav/tests/unit/Controller/BirthdayCalendarControllerTest.php
+++ b/apps/dav/tests/unit/Controller/BirthdayCalendarControllerTest.php
@@ -83,7 +83,7 @@ class BirthdayCalendarControllerTest extends TestCase {
 			);
 
 		$response = $this->controller->enable();
-		$this->assertInstanceOf('OCP\AppFramework\Http\JSONResponse', $response);
+		$this->assertInstanceOf(\OCP\AppFramework\Http\JSONResponse::class, $response);
 	}
 
 	public function testDisable(): void {
@@ -97,6 +97,6 @@ class BirthdayCalendarControllerTest extends TestCase {
 			->method('deleteAllBirthdayCalendars');
 
 		$response = $this->controller->disable();
-		$this->assertInstanceOf('OCP\AppFramework\Http\JSONResponse', $response);
+		$this->assertInstanceOf(\OCP\AppFramework\Http\JSONResponse::class, $response);
 	}
 }
diff --git a/apps/dav/tests/unit/DAV/ErrorPagePluginTest.php b/apps/dav/tests/unit/DAV/ErrorPagePluginTest.php
index a3569f34bd7..7cd2436e8b5 100644
--- a/apps/dav/tests/unit/DAV/ErrorPagePluginTest.php
+++ b/apps/dav/tests/unit/DAV/ErrorPagePluginTest.php
@@ -24,7 +24,7 @@ class ErrorPagePluginTest extends \Test\TestCase {
 		$plugin->expects($this->once())->method('generateBody')->willReturn(':boom:');
 		$plugin->expects($this->once())->method('sendResponse');
 		/** @var \Sabre\DAV\Server | \PHPUnit\Framework\MockObject\MockObject $server */
-		$server = $this->getMockBuilder('Sabre\DAV\Server')->disableOriginalConstructor()->getMock();
+		$server = $this->getMockBuilder(\Sabre\DAV\Server::class)->disableOriginalConstructor()->getMock();
 		$server->expects($this->once())->method('on');
 		$httpResponse = $this->getMockBuilder(Response::class)->disableOriginalConstructor()->getMock();
 		$httpResponse->expects($this->once())->method('addHeaders');
diff --git a/apps/dav/tests/unit/Files/MultipartRequestParserTest.php b/apps/dav/tests/unit/Files/MultipartRequestParserTest.php
index e6325ab8ad1..808e3963946 100644
--- a/apps/dav/tests/unit/Files/MultipartRequestParserTest.php
+++ b/apps/dav/tests/unit/Files/MultipartRequestParserTest.php
@@ -32,7 +32,7 @@ class MultipartRequestParserTest extends TestCase {
 	}
 
 	private function getMultipartParser(array $parts, array $headers = [], string $boundary = 'boundary_azertyuiop'): MultipartRequestParser {
-		$request = $this->getMockBuilder('Sabre\HTTP\RequestInterface')
+		$request = $this->getMockBuilder(\Sabre\HTTP\RequestInterface::class)
 			->disableOriginalConstructor()
 			->getMock();
 
@@ -74,7 +74,7 @@ class MultipartRequestParserTest extends TestCase {
 	 */
 	public function testBodyTypeValidation(): void {
 		$bodyStream = 'I am not a stream, but pretend to be';
-		$request = $this->getMockBuilder('Sabre\HTTP\RequestInterface')
+		$request = $this->getMockBuilder(\Sabre\HTTP\RequestInterface::class)
 			->disableOriginalConstructor()
 			->getMock();
 		$request->expects($this->any())
diff --git a/apps/dav/tests/unit/SystemTag/SystemTagMappingNodeTest.php b/apps/dav/tests/unit/SystemTag/SystemTagMappingNodeTest.php
index 308950cef34..4e37cc056f6 100644
--- a/apps/dav/tests/unit/SystemTag/SystemTagMappingNodeTest.php
+++ b/apps/dav/tests/unit/SystemTag/SystemTagMappingNodeTest.php
@@ -97,12 +97,12 @@ class SystemTagMappingNodeTest extends \Test\TestCase {
 			[
 				// cannot unassign invisible tag
 				new SystemTag(1, 'Original', false, true),
-				'Sabre\DAV\Exception\NotFound',
+				\Sabre\DAV\Exception\NotFound::class,
 			],
 			[
 				// cannot unassign non-assignable tag
 				new SystemTag(1, 'Original', true, false),
-				'Sabre\DAV\Exception\Forbidden',
+				\Sabre\DAV\Exception\Forbidden::class,
 			],
 		];
 	}
diff --git a/apps/dav/tests/unit/SystemTag/SystemTagNodeTest.php b/apps/dav/tests/unit/SystemTag/SystemTagNodeTest.php
index 82aa81674df..a5d9df1dbf7 100644
--- a/apps/dav/tests/unit/SystemTag/SystemTagNodeTest.php
+++ b/apps/dav/tests/unit/SystemTag/SystemTagNodeTest.php
@@ -117,37 +117,37 @@ class SystemTagNodeTest extends \Test\TestCase {
 				// changing permissions not allowed
 				new SystemTag(1, 'Original', true, true),
 				['Original', false, true],
-				'Sabre\DAV\Exception\Forbidden',
+				\Sabre\DAV\Exception\Forbidden::class,
 			],
 			[
 				// changing permissions not allowed
 				new SystemTag(1, 'Original', true, true),
 				['Original', true, false],
-				'Sabre\DAV\Exception\Forbidden',
+				\Sabre\DAV\Exception\Forbidden::class,
 			],
 			[
 				// changing permissions not allowed
 				new SystemTag(1, 'Original', true, true),
 				['Original', false, false],
-				'Sabre\DAV\Exception\Forbidden',
+				\Sabre\DAV\Exception\Forbidden::class,
 			],
 			[
 				// changing non-assignable not allowed
 				new SystemTag(1, 'Original', true, false),
 				['Rename', true, false],
-				'Sabre\DAV\Exception\Forbidden',
+				\Sabre\DAV\Exception\Forbidden::class,
 			],
 			[
 				// changing non-assignable not allowed
 				new SystemTag(1, 'Original', true, false),
 				['Original', true, true],
-				'Sabre\DAV\Exception\Forbidden',
+				\Sabre\DAV\Exception\Forbidden::class,
 			],
 			[
 				// invisible tag does not exist
 				new SystemTag(1, 'Original', false, false),
 				['Rename', false, false],
-				'Sabre\DAV\Exception\NotFound',
+				\Sabre\DAV\Exception\NotFound::class,
 			],
 		];
 	}
@@ -242,12 +242,12 @@ class SystemTagNodeTest extends \Test\TestCase {
 			[
 				// cannot delete invisible tag
 				new SystemTag(1, 'Original', false, true),
-				'Sabre\DAV\Exception\Forbidden',
+				\Sabre\DAV\Exception\Forbidden::class,
 			],
 			[
 				// cannot delete non-assignable tag
 				new SystemTag(1, 'Original', true, false),
-				'Sabre\DAV\Exception\Forbidden',
+				\Sabre\DAV\Exception\Forbidden::class,
 			],
 		];
 	}
diff --git a/apps/dav/tests/unit/SystemTag/SystemTagPluginTest.php b/apps/dav/tests/unit/SystemTag/SystemTagPluginTest.php
index 67e7afa9c54..db4feda0d40 100644
--- a/apps/dav/tests/unit/SystemTag/SystemTagPluginTest.php
+++ b/apps/dav/tests/unit/SystemTag/SystemTagPluginTest.php
@@ -575,8 +575,8 @@ class SystemTagPluginTest extends \Test\TestCase {
 
 	public function nodeClassProvider() {
 		return [
-			['\OCA\DAV\SystemTag\SystemTagsByIdCollection'],
-			['\OCA\DAV\SystemTag\SystemTagsObjectMappingCollection'],
+			[\OCA\DAV\SystemTag\SystemTagsByIdCollection::class],
+			[\OCA\DAV\SystemTag\SystemTagsObjectMappingCollection::class],
 		];
 	}
 
diff --git a/apps/dav/tests/unit/SystemTag/SystemTagsByIdCollectionTest.php b/apps/dav/tests/unit/SystemTag/SystemTagsByIdCollectionTest.php
index db55d82adc9..9629b1fcf70 100644
--- a/apps/dav/tests/unit/SystemTag/SystemTagsByIdCollectionTest.php
+++ b/apps/dav/tests/unit/SystemTag/SystemTagsByIdCollectionTest.php
@@ -89,7 +89,7 @@ class SystemTagsByIdCollectionTest extends \Test\TestCase {
 
 		$childNode = $this->getNode()->getChild('123');
 
-		$this->assertInstanceOf('\OCA\DAV\SystemTag\SystemTagNode', $childNode);
+		$this->assertInstanceOf(\OCA\DAV\SystemTag\SystemTagNode::class, $childNode);
 		$this->assertEquals('123', $childNode->getName());
 		$this->assertEquals($tag, $childNode->getSystemTag());
 	}
@@ -145,8 +145,8 @@ class SystemTagsByIdCollectionTest extends \Test\TestCase {
 
 		$this->assertCount(2, $children);
 
-		$this->assertInstanceOf('\OCA\DAV\SystemTag\SystemTagNode', $children[0]);
-		$this->assertInstanceOf('\OCA\DAV\SystemTag\SystemTagNode', $children[1]);
+		$this->assertInstanceOf(\OCA\DAV\SystemTag\SystemTagNode::class, $children[0]);
+		$this->assertInstanceOf(\OCA\DAV\SystemTag\SystemTagNode::class, $children[1]);
 		$this->assertEquals($tag1, $children[0]->getSystemTag());
 		$this->assertEquals($tag2, $children[1]->getSystemTag());
 	}
@@ -164,8 +164,8 @@ class SystemTagsByIdCollectionTest extends \Test\TestCase {
 
 		$this->assertCount(2, $children);
 
-		$this->assertInstanceOf('\OCA\DAV\SystemTag\SystemTagNode', $children[0]);
-		$this->assertInstanceOf('\OCA\DAV\SystemTag\SystemTagNode', $children[1]);
+		$this->assertInstanceOf(\OCA\DAV\SystemTag\SystemTagNode::class, $children[0]);
+		$this->assertInstanceOf(\OCA\DAV\SystemTag\SystemTagNode::class, $children[1]);
 		$this->assertEquals($tag1, $children[0]->getSystemTag());
 		$this->assertEquals($tag2, $children[1]->getSystemTag());
 	}
diff --git a/apps/dav/tests/unit/SystemTag/SystemTagsObjectMappingCollectionTest.php b/apps/dav/tests/unit/SystemTag/SystemTagsObjectMappingCollectionTest.php
index c2e62f73828..d7787d9dd82 100644
--- a/apps/dav/tests/unit/SystemTag/SystemTagsObjectMappingCollectionTest.php
+++ b/apps/dav/tests/unit/SystemTag/SystemTagsObjectMappingCollectionTest.php
@@ -88,9 +88,9 @@ class SystemTagsObjectMappingCollectionTest extends \Test\TestCase {
 	public function permissionsProvider() {
 		return [
 			// invisible, tag does not exist for user
-			[false, true, '\Sabre\DAV\Exception\PreconditionFailed'],
+			[false, true, \Sabre\DAV\Exception\PreconditionFailed::class],
 			// visible but static, cannot assign tag
-			[true, false, '\Sabre\DAV\Exception\Forbidden'],
+			[true, false, \Sabre\DAV\Exception\Forbidden::class],
 		];
 	}
 
@@ -163,7 +163,7 @@ class SystemTagsObjectMappingCollectionTest extends \Test\TestCase {
 
 		$childNode = $this->getNode()->getChild('555');
 
-		$this->assertInstanceOf('\OCA\DAV\SystemTag\SystemTagMappingNode', $childNode);
+		$this->assertInstanceOf(\OCA\DAV\SystemTag\SystemTagMappingNode::class, $childNode);
 		$this->assertEquals('555', $childNode->getName());
 	}
 
@@ -251,8 +251,8 @@ class SystemTagsObjectMappingCollectionTest extends \Test\TestCase {
 
 		$this->assertCount(2, $children);
 
-		$this->assertInstanceOf('\OCA\DAV\SystemTag\SystemTagMappingNode', $children[0]);
-		$this->assertInstanceOf('\OCA\DAV\SystemTag\SystemTagMappingNode', $children[1]);
+		$this->assertInstanceOf(\OCA\DAV\SystemTag\SystemTagMappingNode::class, $children[0]);
+		$this->assertInstanceOf(\OCA\DAV\SystemTag\SystemTagMappingNode::class, $children[1]);
 
 		$this->assertEquals(111, $children[0]->getObjectId());
 		$this->assertEquals('files', $children[0]->getObjectType());
diff --git a/apps/dav/tests/unit/SystemTag/SystemTagsObjectTypeCollectionTest.php b/apps/dav/tests/unit/SystemTag/SystemTagsObjectTypeCollectionTest.php
index b202f340e32..d2868113efa 100644
--- a/apps/dav/tests/unit/SystemTag/SystemTagsObjectTypeCollectionTest.php
+++ b/apps/dav/tests/unit/SystemTag/SystemTagsObjectTypeCollectionTest.php
@@ -111,7 +111,7 @@ class SystemTagsObjectTypeCollectionTest extends \Test\TestCase {
 			->willReturn($this->createMock(\OCP\Files\Node::class));
 		$childNode = $this->node->getChild('555');
 
-		$this->assertInstanceOf('\OCA\DAV\SystemTag\SystemTagsObjectMappingCollection', $childNode);
+		$this->assertInstanceOf(\OCA\DAV\SystemTag\SystemTagsObjectMappingCollection::class, $childNode);
 		$this->assertEquals('555', $childNode->getName());
 	}
 
diff --git a/apps/dav/tests/unit/Upload/ChunkingPluginTest.php b/apps/dav/tests/unit/Upload/ChunkingPluginTest.php
index 87feebf5d09..400fe5a6b69 100644
--- a/apps/dav/tests/unit/Upload/ChunkingPluginTest.php
+++ b/apps/dav/tests/unit/Upload/ChunkingPluginTest.php
@@ -38,10 +38,10 @@ class ChunkingPluginTest extends TestCase {
 	protected function setUp(): void {
 		parent::setUp();
 
-		$this->server = $this->getMockBuilder('\Sabre\DAV\Server')
+		$this->server = $this->getMockBuilder(\Sabre\DAV\Server::class)
 			->disableOriginalConstructor()
 			->getMock();
-		$this->tree = $this->getMockBuilder('\Sabre\DAV\Tree')
+		$this->tree = $this->getMockBuilder(\Sabre\DAV\Tree::class)
 			->disableOriginalConstructor()
 			->getMock();