5 files changed, 7 insertions, 7 deletions
diff --git a/tests/lib/Memcache/APCuTest.php b/tests/lib/Memcache/APCuTest.php
index 41de75a8ea8..199acbe263b 100644
--- a/tests/lib/Memcache/APCuTest.php
+++ b/tests/lib/Memcache/APCuTest.php
@@ -10,7 +10,7 @@
 namespace Test\Memcache;
 
 class APCuTest extends Cache {
-	protected function setUp() {
+	protected function setUp(): void {
 		parent::setUp();
 
 		if(!\OC\Memcache\APCu::isAvailable()) {
diff --git a/tests/lib/Memcache/ArrayCacheTest.php b/tests/lib/Memcache/ArrayCacheTest.php
index 3ae8c116a01..4e3623d344d 100644
--- a/tests/lib/Memcache/ArrayCacheTest.php
+++ b/tests/lib/Memcache/ArrayCacheTest.php
@@ -10,7 +10,7 @@
 namespace Test\Memcache;
 
 class ArrayCacheTest extends Cache {
-	protected function setUp() {
+	protected function setUp(): void {
 		parent::setUp();
 		$this->instance = new \OC\Memcache\ArrayCache('');
 	}
diff --git a/tests/lib/Memcache/Cache.php b/tests/lib/Memcache/Cache.php
index 8d6a231dd8d..ab316738c9c 100644
--- a/tests/lib/Memcache/Cache.php
+++ b/tests/lib/Memcache/Cache.php
@@ -123,7 +123,7 @@ abstract class Cache extends \Test\Cache\TestCache {
 	}
 
 
-	protected function tearDown() {
+	protected function tearDown(): void {
 		if ($this->instance) {
 			$this->instance->clear();
 		}
diff --git a/tests/lib/Memcache/MemcachedTest.php b/tests/lib/Memcache/MemcachedTest.php
index 865d8594bbb..96b88992665 100644
--- a/tests/lib/Memcache/MemcachedTest.php
+++ b/tests/lib/Memcache/MemcachedTest.php
@@ -10,7 +10,7 @@
 namespace Test\Memcache;
 
 class MemcachedTest extends Cache {
-	static public function setUpBeforeClass() {
+	static public function setUpBeforeClass(): void {
 		parent::setUpBeforeClass();
 
 		if (!\OC\Memcache\Memcached::isAvailable()) {
@@ -22,7 +22,7 @@ class MemcachedTest extends Cache {
 		}
 	}
 
-	protected function setUp() {
+	protected function setUp(): void {
 		parent::setUp();
 		$this->instance = new \OC\Memcache\Memcached($this->getUniqueID());
 	}
diff --git a/tests/lib/Memcache/RedisTest.php b/tests/lib/Memcache/RedisTest.php
index 6a0a82f6aa7..ba16b4a2bf1 100644
--- a/tests/lib/Memcache/RedisTest.php
+++ b/tests/lib/Memcache/RedisTest.php
@@ -10,7 +10,7 @@
 namespace Test\Memcache;
 
 class RedisTest extends Cache {
-	static public function setUpBeforeClass() {
+	static public function setUpBeforeClass(): void {
 		parent::setUpBeforeClass();
 
 		if (!\OC\Memcache\Redis::isAvailable()) {
@@ -44,7 +44,7 @@ class RedisTest extends Cache {
 		}
 	}
 
-	protected function setUp() {
+	protected function setUp(): void {
 		parent::setUp();
 		$this->instance = new \OC\Memcache\Redis($this->getUniqueID());
 	}