Exception serialization (see nextcloud/server#21875)

Author: R0Wi

lib/BackgroundJobs/ProcessFileJob.php

@@ -95,7 +95,7 @@ protected function run($argument) : void {
 			$this->initUserEnvironment($uid);
 			$this->processFile($filePath);
 		} catch (\Throwable $ex) {
-			$this->logger->error($ex->getMessage(), [$ex]);
+			$this->logger->error($ex->getMessage(), ['exception' => $ex]);
 		} finally {
 			$this->shutdownUserEnvironment();
 		}

tests/Unit/BackgroundJobs/ProcessFileJobTest.php

@@ -150,7 +150,7 @@ public function testCatchesExceptionAndResetsUserEnvironment() {
 
 		$this->logger->expects($this->once())
 			->method('error')
-			->with($exception->getMessage(), [$exception]);
+			->with($exception->getMessage(), ['exception' => $exception]);
 
 		// Make sure user-environment is reset after any exception
 		// so the user should be set on beginning but should also
@@ -327,7 +327,7 @@ public function testThrowsNoUserException_OnNonExistingUser() {
 		$this->logger->expects($this->once())
 			->method('error')
 			->with($this->stringContains('nonexistinguser'), $this->callback(function ($subject) {
-				return is_array($subject) && ($subject[0] instanceof NoUserException);
+				return is_array($subject) && ($subject['exception'] instanceof NoUserException);
 			}));
 
 		$processFileJob = new ProcessFileJob(