nextcloud/tests/lib/preview.php

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<?php
/**
* Copyright (c) 2013 Georg Ehrke <georg@ownCloud.com>
* This file is licensed under the Affero General Public License version 3 or
* later.
* See the COPYING-README file.
*/
namespace Test;
class Preview extends TestCase {
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const TEST_PREVIEW_USER1 = "test-preview-user1";
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/**
* @var \OC\Files\View
*/
private $rootView;
/** @var \OC\Files\Storage\Storage */
private $originalStorage;
protected function setUp() {
parent::setUp();
// FIXME: use proper tearDown with $this->loginAsUser() and $this->logout()
// (would currently break the tests for some reason)
$this->originalStorage = \OC\Files\Filesystem::getStorage('/');
// create a new user with his own filesystem view
// this gets called by each test in this test class
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$backend = new \OC_User_Dummy();
\OC_User::useBackend($backend);
$backend->createUser(self::TEST_PREVIEW_USER1, self::TEST_PREVIEW_USER1);
$user = \OC::$server->getUserManager()->get(self::TEST_PREVIEW_USER1);
\OC::$server->getUserSession()->setUser($user);
\OC\Files\Filesystem::init(self::TEST_PREVIEW_USER1, '/' . self::TEST_PREVIEW_USER1 . '/files');
\OC\Files\Filesystem::mount('OC\Files\Storage\Temporary', array(), '/');
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$this->rootView = new \OC\Files\View('');
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$this->rootView->mkdir('/'.self::TEST_PREVIEW_USER1);
$this->rootView->mkdir('/'.self::TEST_PREVIEW_USER1.'/files');
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}
protected function tearDown() {
\OC\Files\Filesystem::clearMounts();
\OC\Files\Filesystem::mount($this->originalStorage, array(), '/');
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', $maxY);
// Sample is 1680x1050 JPEG
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$sampleFile = '/' . self::TEST_PREVIEW_USER1 . '/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;
$largeY = 1080;
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$preview = new \OC\Preview(self::TEST_PREVIEW_USER1, '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(), $maxY);
// The max thumbnail should be created
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$maxThumbCacheFile = '/' . self::TEST_PREVIEW_USER1 . '/' . \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;
$smallY = 50;
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$preview = new \OC\Preview(self::TEST_PREVIEW_USER1, '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(), $smallY);
// The cache should contain the small preview
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$thumbCacheFile = '/' . self::TEST_PREVIEW_USER1 . '/' . \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', $isCached);
}
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public function testIsPreviewDeleted() {
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$sampleFile = '/'.self::TEST_PREVIEW_USER1.'/files/test.txt';
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$this->rootView->file_put_contents($sampleFile, 'dummy file data');
$x = 50;
$y = 50;
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$preview = new \OC\Preview(self::TEST_PREVIEW_USER1, 'files/', 'test.txt', $x, $y);
$preview->getPreview();
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$fileInfo = $this->rootView->getFileInfo($sampleFile);
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$fileId = $fileInfo['fileid'];
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$thumbCacheFile = '/' . self::TEST_PREVIEW_USER1 . '/' . \OC\Preview::THUMBNAILS_FOLDER . '/' . $fileId . '/' . $x . '-' . $y . '.png';
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$this->assertEquals($this->rootView->file_exists($thumbCacheFile), true);
$preview->deletePreview();
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$this->assertEquals($this->rootView->file_exists($thumbCacheFile), false);
}
public function testAreAllPreviewsDeleted() {
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$sampleFile = '/'.self::TEST_PREVIEW_USER1.'/files/test.txt';
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$this->rootView->file_put_contents($sampleFile, 'dummy file data');
$x = 50;
$y = 50;
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$preview = new \OC\Preview(self::TEST_PREVIEW_USER1, 'files/', 'test.txt', $x, $y);
$preview->getPreview();
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$fileInfo = $this->rootView->getFileInfo($sampleFile);
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$fileId = $fileInfo['fileid'];
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$thumbCacheFolder = '/' . self::TEST_PREVIEW_USER1 . '/' . \OC\Preview::THUMBNAILS_FOLDER . '/' . $fileId . '/';
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$this->assertEquals($this->rootView->is_dir($thumbCacheFolder), true);
$preview->deleteAllPreviews();
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$this->assertEquals($this->rootView->is_dir($thumbCacheFolder), false);
}
public function txtBlacklist() {
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$txt = 'random text file';
return array(
array('txt', $txt, false),
);
}
/**
* @dataProvider txtBlacklist
*/
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public function testIsTransparent($extension, $data, $expectedResult) {
$x = 32;
$y = 32;
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$sample = '/'.self::TEST_PREVIEW_USER1.'/files/test.'.$extension;
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$this->rootView->file_put_contents($sample, $data);
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$preview = new \OC\Preview(self::TEST_PREVIEW_USER1, 'files/', 'test.'.$extension, $x, $y);
$image = $preview->getPreview();
$resource = $image->resource();
//http://stackoverflow.com/questions/5702953/imagecolorat-and-transparency
$colorIndex = imagecolorat($resource, 1, 1);
$colorInfo = imagecolorsforindex($resource, $colorIndex);
$this->assertEquals(
$expectedResult,
$colorInfo['alpha'] === 127,
'Failed asserting that only previews for text files are transparent.'
);
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}
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public function testCreationFromCached() {
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$sampleFile = '/'.self::TEST_PREVIEW_USER1.'/files/test.txt';
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$this->rootView->file_put_contents($sampleFile, 'dummy file data');
// create base preview
$x = 150;
$y = 150;
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$preview = new \OC\Preview(self::TEST_PREVIEW_USER1, 'files/', 'test.txt', $x, $y);
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$preview->getPreview();
$fileInfo = $this->rootView->getFileInfo($sampleFile);
$fileId = $fileInfo['fileid'];
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$thumbCacheFile = '/' . self::TEST_PREVIEW_USER1 . '/' . \OC\Preview::THUMBNAILS_FOLDER . '/' . $fileId . '/' . $x . '-' . $y . '.png';
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$this->assertEquals($this->rootView->file_exists($thumbCacheFile), true);
// create smaller previews
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$preview = new \OC\Preview(self::TEST_PREVIEW_USER1, 'files/', 'test.txt', 50, 50);
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$isCached = $preview->isCached($fileId);
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$this->assertEquals(self::TEST_PREVIEW_USER1 . '/' . \OC\Preview::THUMBNAILS_FOLDER . '/' . $fileId . '/150-150.png', $isCached);
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}
/*
public function testScalingUp() {
$sampleFile = '/'.$this->user.'/files/test.txt';
$this->rootView->file_put_contents($sampleFile, 'dummy file data');
// create base preview
$x = 150;
$y = 150;
$preview = new \OC\Preview($this->user, 'files/', 'test.txt', $x, $y);
$preview->getPreview();
$fileInfo = $this->rootView->getFileInfo($sampleFile);
$fileId = $fileInfo['fileid'];
$thumbCacheFile = '/' . $this->user . '/' . \OC\Preview::THUMBNAILS_FOLDER . '/' . $fileId . '/' . $x . '-' . $y . '.png';
$this->assertEquals($this->rootView->file_exists($thumbCacheFile), true);
// create bigger previews - with scale up
$preview = new \OC\Preview($this->user, 'files/', 'test.txt', 250, 250);
$isCached = $preview->isCached($fileId);
$this->assertEquals($this->user . '/' . \OC\Preview::THUMBNAILS_FOLDER . '/' . $fileId . '/150-150.png', $isCached);
}
*/
}