Adds a test for the app directory permission check.

Signed-off-by: Michael Weimann <mail@michael-weimann.eu>

tests/Settings/Controller/CheckSetupControllerTest.php

@@ -21,6 +21,7 @@
 
 namespace Tests\Settings\Controller;
 
+use OC;
 use OC\DB\Connection;
 use OC\Settings\Controller\CheckSetupController;
 use OCP\AppFramework\Http;
@@ -44,6 +45,7 @@ use OC\IntegrityCheck\Checker;
 /**
  * Class CheckSetupControllerTest
  *
+ * @backupStaticAttributes
  * @package Tests\Settings\Controller
  */
 class CheckSetupControllerTest extends TestCase {
@@ -74,6 +76,13 @@ class CheckSetupControllerTest extends TestCase {
 	/** @var IDateTimeFormatter|\PHPUnit_Framework_MockObject_MockObject */
 	private $dateTimeFormatter;
 
+	/**
+	 * Holds a list of directories created during tests.
+	 *
+	 * @var array
+	 */
+	private $dirsToRemove = [];
+
 	public function setUp() {
 		parent::setUp();
 
@@ -135,9 +144,23 @@ class CheckSetupControllerTest extends TestCase {
 				'isSqliteUsed',
 				'isPhpMailerUsed',
 				'hasOpcacheLoaded',
+				'getAppDirsWithDifferentOwner',
 			])->getMock();
 	}
 
+	/**
+	 * Removes directories created during tests.
+	 *
+	 * @after
+	 * @return void
+	 */
+	public function removeTestDirectories() {
+		foreach ($this->dirsToRemove as $dirToRemove) {
+			rmdir($dirToRemove);
+		}
+		$this->dirsToRemove = [];
+	}
+
 	public function testIsInternetConnectionWorkingDisabledViaConfig() {
 		$this->config->expects($this->once())
 			->method('getSystemValue')
@@ -425,6 +448,11 @@ class CheckSetupControllerTest extends TestCase {
 			->method('hasPassedCheck')
 			->willReturn(true);
 
+		$this->checkSetupController
+			->expects($this->once())
+			->method('getAppDirsWithDifferentOwner')
+			->willReturn([]);
+
 		$expected = new DataResponse(
 			[
 				'isGetenvServerWorking' => true,
@@ -465,6 +493,7 @@ class CheckSetupControllerTest extends TestCase {
 				'missingIndexes' => [],
 				'isPhpMailerUsed' => false,
 				'mailSettingsDocumentation' => 'https://server/index.php/settings/admin',
+				'appDirsWithDifferentOwner' => [],
 			]
 		);
 		$this->assertEquals($expected, $this->checkSetupController->check());
@@ -571,6 +600,35 @@ class CheckSetupControllerTest extends TestCase {
 		$this->assertSame('', $this->invokePrivate($this->checkSetupController, 'isUsedTlsLibOutdated'));
 	}
 
+	/**
+	 * Setups a temp directory and some subdirectories.
+	 * Then calls the 'getAppDirsWithDifferentOwner' method.
+	 * The result is expected to be empty since
+	 * there are no directories with different owners than the current user.
+	 *
+	 * @return void
+	 */
+	public function testAppDirectoryOwnersOk() {
+		$tempDir = tempnam(sys_get_temp_dir(), 'apps') . 'dir';
+		mkdir($tempDir);
+		mkdir($tempDir . DIRECTORY_SEPARATOR . 'app1');
+		mkdir($tempDir . DIRECTORY_SEPARATOR . 'app2');
+		$this->dirsToRemove[] = $tempDir . DIRECTORY_SEPARATOR . 'app1';
+		$this->dirsToRemove[] = $tempDir . DIRECTORY_SEPARATOR . 'app2';
+		$this->dirsToRemove[] = $tempDir;
+		OC::$APPSROOTS = [
+			[
+				'path' => $tempDir,
+				'url' => '/apps',
+				'writable' => true,
+			],
+		];
+		$this->assertSame(
+			[],
+			$this->invokePrivate($this->checkSetupController, 'getAppDirsWithDifferentOwner')
+		);
+	}
+
 	public function testIsBuggyNss400() {
 		$this->config->expects($this->any())
 			->method('getSystemValue')