diff --git a/lib/private/app/dependencyanalyzer.php b/lib/private/app/dependencyanalyzer.php
index 816c508285..dd40e4052a 100644
--- a/lib/private/app/dependencyanalyzer.php
+++ b/lib/private/app/dependencyanalyzer.php
@@ -30,9 +30,10 @@ class DependencyAnalyzer {
 
 	/** @var Platform */
 	private $platform;
-
 	/** @var \OCP\IL10N */
 	private $l;
+	/** @var array */
+	private $appInfo;
 
 	/**
 	 * @param Platform $platform
@@ -47,7 +48,7 @@ class DependencyAnalyzer {
 	 * @param array $app
 	 * @returns array of missing dependencies
 	 */
-	public function analyze($app) {
+	public function analyze(array $app) {
 		$this->appInfo = $app;
 		if (isset($app['dependencies'])) {
 			$dependencies = $app['dependencies'];
@@ -61,11 +62,12 @@ class DependencyAnalyzer {
 			$this->analyzeCommands($dependencies),
 			$this->analyzeLibraries($dependencies),
 			$this->analyzeOS($dependencies),
-			$this->analyzeOC($dependencies, $app));
+			$this->analyzeOC($dependencies, $app)
+		);
 	}
 
 	/**
-	 * Truncates both verions to the lowest common version, e.g.
+	 * Truncates both versions to the lowest common version, e.g.
 	 * 5.1.2.3 and 5.1 will be turned into 5.1 and 5.1,
 	 * 5.2.6.5 and 5.1 will be turned into 5.2 and 5.1
 	 * @param string $first
@@ -124,7 +126,11 @@ class DependencyAnalyzer {
 		return $this->compare($first, $second, '<');
 	}
 
-	private function analyzePhpVersion($dependencies) {
+	/**
+	 * @param array $dependencies
+	 * @return array
+	 */
+	private function analyzePhpVersion(array $dependencies) {
 		$missing = [];
 		if (isset($dependencies['php']['@attributes']['min-version'])) {
 			$minVersion = $dependencies['php']['@attributes']['min-version'];
@@ -141,7 +147,11 @@ class DependencyAnalyzer {
 		return $missing;
 	}
 
-	private function analyzeDatabases($dependencies) {
+	/**
+	 * @param array $dependencies
+	 * @return array
+	 */
+	private function analyzeDatabases(array $dependencies) {
 		$missing = [];
 		if (!isset($dependencies['database'])) {
 			return $missing;
@@ -164,7 +174,11 @@ class DependencyAnalyzer {
 		return $missing;
 	}
 
-	private function analyzeCommands($dependencies) {
+	/**
+	 * @param array $dependencies
+	 * @return array
+	 */
+	private function analyzeCommands(array $dependencies) {
 		$missing = [];
 		if (!isset($dependencies['command'])) {
 			return $missing;
@@ -187,7 +201,11 @@ class DependencyAnalyzer {
 		return $missing;
 	}
 
-	private function analyzeLibraries($dependencies) {
+	/**
+	 * @param array $dependencies
+	 * @return array
+	 */
+	private function analyzeLibraries(array $dependencies) {
 		$missing = [];
 		if (!isset($dependencies['lib'])) {
 			return $missing;
@@ -225,7 +243,11 @@ class DependencyAnalyzer {
 		return $missing;
 	}
 
-	private function analyzeOS($dependencies) {
+	/**
+	 * @param array $dependencies
+	 * @return array
+	 */
+	private function analyzeOS(array $dependencies) {
 		$missing = [];
 		if (!isset($dependencies['os'])) {
 			return $missing;
@@ -249,7 +271,12 @@ class DependencyAnalyzer {
 		return $missing;
 	}
 
-	private function analyzeOC($dependencies, $appInfo) {
+	/**
+	 * @param array $dependencies
+	 * @param array $appInfo
+	 * @return array
+	 */
+	private function analyzeOC(array $dependencies, array $appInfo) {
 		$missing = [];
 		$minVersion = null;
 		if (isset($dependencies['owncloud']['@attributes']['min-version'])) {
@@ -273,7 +300,7 @@ class DependencyAnalyzer {
 		}
 		if (!is_null($maxVersion)) {
 			if ($this->compareBigger($this->platform->getOcVersion(), $maxVersion)) {
-				$missing[] = (string)$this->l->t('ownCloud with a version lower than %s is required.', $maxVersion);
+				$missing[] = (string)$this->l->t('ownCloud %s or lower is required.', $maxVersion);
 			}
 		}
 		return $missing;
diff --git a/tests/lib/app/dependencyanalyzer.php b/tests/lib/app/dependencyanalyzer.php
index d73bac5a2a..58f1c0a7a9 100644
--- a/tests/lib/app/dependencyanalyzer.php
+++ b/tests/lib/app/dependencyanalyzer.php
@@ -68,6 +68,10 @@ class DependencyAnalyzer extends \PHPUnit_Framework_TestCase {
 
 	/**
 	 * @dataProvider providesPhpVersion
+	 *
+	 * @param string $expectedMissing
+	 * @param string $minVersion
+	 * @param string $maxVersion
 	 */
 	public function testPhpVersion($expectedMissing, $minVersion, $maxVersion) {
 		$app = array(
@@ -106,6 +110,9 @@ class DependencyAnalyzer extends \PHPUnit_Framework_TestCase {
 
 	/**
 	 * @dataProvider providesCommands
+	 *
+	 * @param string $expectedMissing
+	 * @param string|null $commands
 	 */
 	public function testCommand($expectedMissing, $commands) {
 		$app = array(
@@ -179,6 +186,9 @@ class DependencyAnalyzer extends \PHPUnit_Framework_TestCase {
 		$this->assertEquals($expectedMissing, $missing);
 	}
 
+	/**
+	 * @return array
+	 */
 	function providesOC() {
 		return array(
 			// no version -> no missing dependency
@@ -188,10 +198,13 @@ class DependencyAnalyzer extends \PHPUnit_Framework_TestCase {
 			array(array(), array('@attributes' => array('min-version' => '8.0.2', 'max-version' => '8.0.2'))),
 			array(array('ownCloud 8.0.3 or higher is required.'), array('@attributes' => array('min-version' => '8.0.3'))),
 			array(array('ownCloud 9 or higher is required.'), array('@attributes' => array('min-version' => '9'))),
-			array(array('ownCloud with a version lower than 8.0.1 is required.'), array('@attributes' => array('max-version' => '8.0.1'))),
+			[['ownCloud 8.0.1 or lower is required.'], ['@attributes' => ['max-version' => '8.0.1']]],
 		);
 	}
 
+	/**
+	 * @return array
+	 */
 	function providesOS() {
 		return array(
 			array(array(), null),
@@ -201,6 +214,9 @@ class DependencyAnalyzer extends \PHPUnit_Framework_TestCase {
 		);
 	}
 
+	/**
+	 * @return array
+	 */
 	function providesLibs() {
 		return array(
 			// we expect curl to exist
@@ -226,6 +242,9 @@ class DependencyAnalyzer extends \PHPUnit_Framework_TestCase {
 		);
 	}
 
+	/**
+	 * @return array
+	 */
 	function providesCommands() {
 		return array(
 			array(array(), null),
@@ -240,6 +259,9 @@ class DependencyAnalyzer extends \PHPUnit_Framework_TestCase {
 		);
 	}
 
+	/**
+	 * @return array
+	 */
 	function providesDatabases() {
 		return array(
 			// non BC - in case on databases are defined -> all are supported
@@ -250,6 +272,9 @@ class DependencyAnalyzer extends \PHPUnit_Framework_TestCase {
 		);
 	}
 
+	/**
+	 * @return array
+	 */
 	function providesPhpVersion() {
 		return array(
 			array(array(), null, null),