Some tests for the Preview class

1 files changed, 192 insertions, 0 deletions

diff --git a/tests/unit/preview/PreviewTest.php b/tests/unit/preview/PreviewTest.php
new file mode 100644
index 00000000..4d51fc34
--- /dev/null
+++ b/tests/unit/preview/PreviewTest.php
@@ -0,0 +1,192 @@
+<?php
+/**
+ * ownCloud - gallery
+ *
+ * This file is licensed under the Affero General Public License version 3 or
+ * later. See the COPYING file.
+ *
+ * @author Olivier Paroz <owncloud@interfasys.ch>
+ *
+ * @copyright Olivier Paroz 2015
+ */
+
+namespace OCA\Gallery\Preview;
+
+use OCP\IConfig;
+use OCP\IPreview;
+use OCP\ILogger;
+
+use OCA\Gallery\AppInfo\Application;
+
+
+/**
+ * Class PreviewTest
+ *
+ * @package OCA\Gallery\Environment
+ */
+class PreviewTest extends \Test\TestCase {
+
+	/** @var IConfig */
+	private $config;
+	/** @var IPreview */
+	private $corePreviewManager;
+	/** @var ILogger */
+	private $logger;
+	/** @var Preview */
+	private $previewManager;
+
+	/**
+	 * Test set up
+	 */
+	public function setUp() {
+		parent::setUp();
+
+		$this->config = $this->getMockBuilder('\OCP\IConfig')
+							 ->disableOriginalConstructor()
+							 ->getMock();
+		$this->corePreviewManager = $this->getMockBuilder('\OCP\IPreview')
+										 ->disableOriginalConstructor()
+										 ->getMock();
+		$this->logger = $this->getMockBuilder('\OCP\ILogger')
+							 ->disableOriginalConstructor()
+							 ->getMock();
+		$this->previewManager = new Preview(
+			$this->config,
+			$this->corePreviewManager,
+			$this->logger
+		);
+	}
+
+	public function providesPreviewValidatorData() {
+		$maxWidth = 400;
+		$maxHeight = 200;
+		$maxHeightSquare = 400;
+		$correction = 59;
+
+		return [
+			[
+				$maxWidth, $maxHeightSquare, $maxWidth, $maxHeightSquare, true, $maxWidth,
+				$maxHeightSquare
+			],
+			[
+				$maxWidth, $maxHeightSquare, $maxWidth + $correction,
+				$maxHeightSquare + $correction, true,
+				$maxWidth,
+				$maxHeightSquare
+			],
+			[
+				$maxWidth, $maxHeightSquare, $maxWidth + $correction,
+				$maxHeightSquare - $correction, true,
+				$maxWidth,
+				$maxHeightSquare
+			],
+			[
+				$maxWidth, $maxHeightSquare, $maxWidth - $correction,
+				$maxHeightSquare + $correction, true,
+				$maxWidth,
+				$maxHeightSquare
+			],
+			[
+				$maxWidth, $maxHeight, $maxWidth, $maxHeight, false, $maxWidth,
+				$maxHeight
+			],
+			[
+				$maxWidth, $maxHeight, $maxWidth + $correction, $maxHeight + $correction, false,
+				floor($maxHeight * (($maxWidth + $correction) / ($maxHeight + $correction))),
+				$maxHeight
+			],
+			[
+				$maxWidth, $maxHeight, $maxWidth + $correction, $maxHeight - $correction, false,
+				$maxWidth,
+				floor($maxWidth / (($maxWidth + $correction) / ($maxHeight - $correction)))
+			],
+			[
+				$maxWidth, $maxHeight, $maxWidth - $correction, $maxHeight + $correction, false,
+				floor($maxHeight * (($maxWidth - $correction) / ($maxHeight + $correction))),
+				$maxHeight
+			],
+		];
+	}
+
+	/**
+	 * @dataProvider providesPreviewValidatorData
+	 */
+	public function testPreviewValidator(
+		$maxWidth, $maxHeight, $width, $height, $square, $expectedWidth, $expectedHeight
+	) {
+		self::invokePrivate($this->previewManager, 'userId', ['tester']);
+		$app = new Application();
+		$dataDir = $app->getContainer()
+					   ->getServer()
+					   ->getConfig()
+					   ->getSystemValue('datadirectory');
+		self::invokePrivate($this->previewManager, 'dataDir', [$dataDir]);
+		$fileId = 12345;
+		$file = $this->mockFile($fileId);
+		self::invokePrivate($this->previewManager, 'file', [$file]);
+		self::invokePrivate($this->previewManager, 'dims', [[$maxWidth, $maxHeight]]);
+		$preview = $this->mockGetPreview($fileId, $width, $height);
+		self::invokePrivate($this->previewManager, 'preview', [$preview]);
+
+		$response = $this->previewManager->previewValidator($square);
+
+		$this->assertEquals(
+			[$expectedWidth, $expectedHeight], [$response->width(), $response->height()]
+		);
+	}
+
+	public function testGetPreviewFromCoreWithBrokenSystem() {
+		$keepAspect = true; // Doesn't matter
+		$exception = new \Exception('Encryption ate your file');
+		$preview = $this->mockGetPreviewWithBrokenSetup($exception);
+		self::invokePrivate($this->previewManager, 'preview', [$preview]);
+
+		$response = self::invokePrivate($this->previewManager, 'getPreviewFromCore', [$keepAspect]);
+
+		$this->assertNull($response);
+	}
+
+	protected function mockFile($fileId) {
+		$file = $this->getMockBuilder('OCP\Files\File')
+					 ->disableOriginalConstructor()
+					 ->getMock();
+		$file->method('getId')
+			 ->willReturn($fileId);
+
+		return $file;
+	}
+
+	private function mockGetPreview($fileId, $width, $height) {
+		$image = new \OC_Image(file_get_contents(\OC::$SERVERROOT . '/tests/data/testimage.jpg'));
+		$image->preciseResize($width, $height);
+
+		$preview = $this->getMockBuilder('\OC\Preview')
+						->disableOriginalConstructor()
+						->getMock();
+		$preview->method('getPreview')
+				->willReturn($image);
+		$preview->method('isCached')
+				->willReturn($fileId);
+
+		return $preview;
+	}
+
+	private function mockGetPreviewWithBrokenSetup($exception) {
+		$preview = $this->getMockBuilder('\OC\Preview')
+						->disableOriginalConstructor()
+						->getMock();
+		$preview->method('setMaxX')
+				->willReturn(null);
+		$preview->method('setMaxY')
+				->willReturn(null);
+		$preview->method('setScalingUp')
+				->willReturn(null);
+		$preview->method('setKeepAspect')
+				->willReturn(null);
+		$preview->method('getPreview')
+				->willThrowException($exception);
+
+		return $preview;
+	}
+
+}