fix unit tests

lib/private/files/stream/encryption.php

@@ -237,7 +237,6 @@ class Encryption extends Wrapper {
 		$accessList = $this->file->getAccessList($sharePath);
 		$this->newHeader = $this->encryptionModule->begin($this->fullPath, $this->uid, $this->header, $accessList);
 
-		if (!($path==='')){
 		if (
 			$mode === 'w'
 			|| $mode === 'w+'
@@ -249,9 +248,9 @@ class Encryption extends Wrapper {
 			$this->writeHeader();
 			$this->size = $this->util->getHeaderSize();
 		} else {
-			parent::stream_read($this->util->getHeaderSize());
-		}
+			$this->skipHeader();
 		}
+
 		return true;
 
 	}
@@ -432,9 +431,16 @@ class Encryption extends Wrapper {
 	 * @return integer
 	 * @throws EncryptionHeaderKeyExistsException if header key is already in use
 	 */
-	private function writeHeader() {
+	protected function writeHeader() {
 		$header = $this->util->createHeader($this->newHeader, $this->encryptionModule);
 		return parent::stream_write($header);
 	}
 
+	/**
+	 * read first block to skip the header
+	 */
+	protected function skipHeader() {
+		parent::stream_read($this->util->getHeaderSize());
+	}
+
 }

tests/lib/files/stream/encryption.php

@@ -55,6 +55,7 @@ class Encryption extends \Test\TestCase {
 								   $fileExists,
 								   $expectedSharePath,
 								   $expectedSize,
+								   $expectedUnencryptedSize,
 								   $expectedReadOnly) {
 
 		// build mocks
@@ -77,9 +78,15 @@ class Encryption extends \Test\TestCase {
 				return array();
 			}));
 
+		$utilMock = $this->getMockBuilder('\OC\Encryption\Util')
+			->disableOriginalConstructor()->getMock();
+		$utilMock->expects($this->any())
+			->method('getHeaderSize')
+			->willReturn(8192);
+
 		// get a instance of the stream wrapper
 		$streamWrapper = $this->getMockBuilder('\OC\Files\Stream\Encryption')
-			->setMethods(['loadContext'])->disableOriginalConstructor()->getMock();
+			->setMethods(['loadContext', 'writeHeader', 'skipHeader'])->disableOriginalConstructor()->getMock();
 
 		// set internal properties of the stream wrapper
 		$stream = new \ReflectionClass('\OC\Files\Stream\Encryption');
@@ -95,6 +102,10 @@ class Encryption extends \Test\TestCase {
 		$file->setAccessible(true);
 		$file->setValue($streamWrapper, $fileMock);
 		$file->setAccessible(false);
+		$util = $stream->getProperty('util');
+		$util->setAccessible(true);
+		$util->setValue($streamWrapper, $utilMock);
+		$util->setAccessible(false);
 		$fullPathP = $stream->getProperty('fullPath');
 		$fullPathP->setAccessible(true);
 		$fullPathP->setValue($streamWrapper, $fullPath);
@@ -118,7 +129,7 @@ class Encryption extends \Test\TestCase {
 
 		$unencryptedSize = $stream->getProperty('unencryptedSize');
 		$unencryptedSize->setAccessible(true);
-		$this->assertSame($expectedSize,
+		$this->assertSame($expectedUnencryptedSize,
 			$unencryptedSize->getValue($streamWrapper)
 		);
 		$unencryptedSize->setAccessible(false);
@@ -133,9 +144,9 @@ class Encryption extends \Test\TestCase {
 
 	public function dataProviderStreamOpen() {
 		return array(
-			array('r', '/foo/bar/test.txt', true, '/foo/bar/test.txt', null, true),
-			array('r', '/foo/bar/test.txt', false, '/foo/bar', null, true),
-			array('w', '/foo/bar/test.txt', true, '/foo/bar/test.txt', 0, false),
+			array('r', '/foo/bar/test.txt', true, '/foo/bar/test.txt', null, null, true),
+			array('r', '/foo/bar/test.txt', false, '/foo/bar', null, null, true),
+			array('w', '/foo/bar/test.txt', true, '/foo/bar/test.txt', 8192, 0, false),
 		);
 	}