feat(test): basic tests for ConversionApiController

Signed-off-by: Elizabeth Danzberger <lizzy7128@tutanota.de>

Author: elzody

apps/testing/lib/Conversion/ConversionProvider.php

@@ -29,7 +29,7 @@ public function getSupportedMimeTypes(): array {
 
 	public function convertFile(File $file, string $targetMimeType): mixed {
 		$image = imagecreatefromstring($file->getContent());
-		
+
 		imagepalettetotruecolor($image);
 
 		ob_start();

tests/Core/Controller/ConversionApiControllerTest.php

@@ -0,0 +1,90 @@
+<?php
+
+/**
+ * SPDX-FileCopyrightText: 2024 Nextcloud GmbH and Nextcloud contributors
+ * SPDX-License-Identifier: AGPL-3.0-or-later
+ */
+
+namespace Core\Controller;
+
+use OC\Core\Controller\ConversionApiController;
+use OCP\AppFramework\Http;
+use OCP\AppFramework\Http\DataResponse;
+use OCP\AppFramework\OCS\OCSException;
+use OCP\AppFramework\OCS\OCSNotFoundException;
+use OCP\Conversion\IConversionManager;
+use OCP\Files\File;
+use OCP\Files\Folder;
+use OCP\Files\IRootFolder;
+use OCP\IRequest;
+use PHPUnit\Framework\MockObject\MockObject;
+use Test\TestCase;
+
+class ConversionApiControllerTest extends TestCase {
+	/** @var ConversionApiController */
+	private $conversionApiController;
+
+	/** @var IRequest|MockObject */
+	private $request;
+
+	/** @var IConversionManager|MockObject */
+	private $conversionManager;
+
+	/** @var IRootFolder|MockObject */
+	private $rootFolder;
+
+	/** @var File|MockObject */
+	private $file;
+
+	/** @var Folder|MockObject */
+	private $userFolder;
+
+	/** @var string */
+	private $user;
+
+	protected function setUp(): void {
+		parent::setUp();
+
+		$this->request = $this->createMock(IRequest::class);
+		$this->conversionManager = $this->createMock(IConversionManager::class);
+		$this->file = $this->createMock(File::class);
+		$this->user = 'userid';
+
+		$this->userFolder = $this->createMock(Folder::class);
+		$this->rootFolder = $this->createMock(IRootFolder::class);
+		$this->rootFolder->method('getUserFolder')->with($this->user)->willReturn($this->userFolder);
+
+		$this->conversionApiController = new ConversionApiController(
+			'core',
+			$this->request,
+			$this->conversionManager,
+			$this->rootFolder,
+			$this->user,
+		);
+	}
+
+	public function testThrowsNotFoundException() {
+		$this->expectException(OCSNotFoundException::class);
+		$this->conversionApiController->convert(42, 'image/png');
+	}
+
+	public function testThrowsOcsException() {
+		$this->userFolder->method('getFirstNodeById')->with(42)->willReturn($this->file);
+		$this->conversionManager->method('convert')->willThrowException(new \Exception());
+
+		$this->expectException(OCSException::class);
+		$this->conversionApiController->convert(42, 'image/png');
+	}
+
+	public function testConvert() {
+		$this->userFolder->method('getFirstNodeById')->with(42)->willReturn($this->file);
+		$this->conversionManager->method('convert')->with($this->file, 'image/png')->willReturn('files/test.png');
+
+		$actual = $this->conversionApiController->convert(42, 'image/png');
+		$expected = new DataResponse([
+			'path' => 'files/test.png',
+		], Http::STATUS_CREATED);
+
+		$this->assertEquals($expected, $actual);
+	}
+}