From 74bf9806b0fd17c82a5d3048d03a8dc735a2ce04 Mon Sep 17 00:00:00 2001
From: Olivier Paroz <github@oparoz.com>
Date: Tue, 7 Apr 2015 16:45:16 +0200
Subject:  Introducing the maximum size preview The first time we're asked to
 generate a preview we'll generate one of the maximum dimension indicated in
 the configuration and all future resizing requests will be done on that
 preview in order to not waste time converting the same file over and over.

One of the fixes required for #12465
---
 tests/lib/preview.php | 90 ++++++++++++++++++++++++++++++++++++++++-----------
 1 file changed, 71 insertions(+), 19 deletions(-)

(limited to 'tests/lib/preview.php')

diff --git a/tests/lib/preview.php b/tests/lib/preview.php
index 2a6761403f4..003ecedb65a 100644
--- a/tests/lib/preview.php
+++ b/tests/lib/preview.php
@@ -48,6 +48,77 @@ class Preview extends TestCase {
 		parent::tearDown();
 	}
 
+	public function testIsMaxSizeWorking() {
+		// Max size from config
+		$maxX = 1024;
+		$maxY = 1024;
+
+		\OC::$server->getConfig()->setSystemValue('preview_max_x', $maxX);
+		\OC::$server->getConfig()->setSystemValue('preview_max_y', $maxY);
+
+		// Sample is 1680x1050 JPEG
+		$sampleFile = '/' . $this->user . '/files/testimage.jpg';
+		$this->rootView->file_put_contents($sampleFile, file_get_contents(\OC::$SERVERROOT.'/tests/data/testimage.jpg'));
+		$fileInfo = $this->rootView->getFileInfo($sampleFile);
+		$fileId = $fileInfo['fileid'];
+
+		$largeX = 1920;
+		$largeY = 1080;
+		$preview = new \OC\Preview($this->user, 'files/', 'testimage.jpg', $largeX, $largeY);
+
+		$this->assertEquals($preview->isFileValid(), true);
+
+		// There should be no cached copy
+		$isCached = $preview->isCached($fileId);
+
+		$this->assertNotEquals(\OC\Preview::THUMBNAILS_FOLDER . '/' . $fileId . '/' . $maxX . '-' . $maxY . '-max.png', $isCached);
+		$this->assertNotEquals(\OC\Preview::THUMBNAILS_FOLDER . '/' . $fileId . '/' . $maxX . '-' . $maxY . '.png', $isCached);
+		$this->assertNotEquals(\OC\Preview::THUMBNAILS_FOLDER . '/' . $fileId . '/' . $largeX . '-' . $largeY . '.png', $isCached);
+
+		// The returned preview should be of max size
+		$image = $preview->getPreview();
+
+		$this->assertEquals($image->width(), $maxX);
+		$this->assertEquals($image->height(), $maxY);
+
+		// The max thumbnail should be created
+		$maxThumbCacheFile = '/' . $this->user . '/' . \OC\Preview::THUMBNAILS_FOLDER . '/' . $fileId . '/' . $maxX . '-' . $maxY . '-max.png';
+
+		$this->assertEquals($this->rootView->file_exists($maxThumbCacheFile), true);
+
+		// A preview of the asked size should not have been created
+		$thumbCacheFile = \OC\Preview::THUMBNAILS_FOLDER . '/' . $fileId . '/' . $largeX . '-' . $largeY . '.png';
+
+		$this->assertEquals($this->rootView->file_exists($thumbCacheFile), false);
+
+		// 2nd request should indicate that we have a cached copy of max dimension
+		$isCached = $preview->isCached($fileId);
+		$this->assertEquals(\OC\Preview::THUMBNAILS_FOLDER . '/' . $fileId . '/' . $maxX . '-' . $maxY . '.png', $isCached);
+
+		// Smaller previews should be based on the cached max preview
+		$smallX = 50;
+		$smallY = 50;
+		$preview = new \OC\Preview($this->user, 'files/', 'testimage.jpg', $smallX, $smallY);
+		$isCached = $preview->isCached($fileId);
+
+		$this->assertEquals(\OC\Preview::THUMBNAILS_FOLDER . '/' . $fileId . '/' . $maxX . '-' . $maxY . '.png', $isCached);
+
+		// A small preview should be created
+		$image = $preview->getPreview();
+		$this->assertEquals($image->width(), $smallX);
+		$this->assertEquals($image->height(), $smallY);
+
+		// The cache should contain the small preview
+		$thumbCacheFile = '/' . $this->user . '/' . \OC\Preview::THUMBNAILS_FOLDER . '/' . $fileId . '/' . $smallX . '-' . $smallY . '.png';
+
+		$this->assertEquals($this->rootView->file_exists($thumbCacheFile), true);
+
+		// 2nd request should indicate that we have a cached copy of the exact dimension
+		$isCached = $preview->isCached($fileId);
+
+		$this->assertEquals(\OC\Preview::THUMBNAILS_FOLDER . '/' . $fileId . '/' . $smallX . '-' . $smallY . '.png', $isCached);
+	}
+
 	public function testIsPreviewDeleted() {
 
 		$sampleFile = '/'.$this->user.'/files/test.txt';
@@ -96,25 +167,6 @@ class Preview extends TestCase {
 		$this->assertEquals($this->rootView->is_dir($thumbCacheFolder), false);
 	}
 
-	public function testIsMaxSizeWorking() {
-
-		$maxX = 250;
-		$maxY = 250;
-
-		\OC_Config::setValue('preview_max_x', $maxX);
-		\OC_Config::setValue('preview_max_y', $maxY);
-
-		$sampleFile = '/'.$this->user.'/files/test.txt';
-
-		$this->rootView->file_put_contents($sampleFile, 'dummy file data');
-
-		$preview = new \OC\Preview($this->user, 'files/', 'test.txt', 1000, 1000);
-		$image = $preview->getPreview();
-
-		$this->assertEquals($image->width(), $maxX);
-		$this->assertEquals($image->height(), $maxY);
-	}
-
 	public function txtBlacklist() {
 		$txt = 'random text file';
 
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