Comply with PHPUnit V8: setup/teardown functions must return void

tests/plugins/PluginAddlinkTest.php

@@ -14,7 +14,7 @@ class PluginAddlinkTest extends \PHPUnit\Framework\TestCase
     /**
      * Reset plugin path.
      */
-    public function setUp()
+    protected function setUp(): void
     {
         PluginManager::$PLUGINS_PATH = 'plugins';
     }

tests/plugins/PluginDefaultColorsTest.php

@@ -19,7 +19,7 @@ class PluginDefaultColorsTest extends TestCase
     /**
      * Reset plugin path
      */
-    public function setUp()
+    protected function setUp(): void
     {
         PluginManager::$PLUGINS_PATH = 'sandbox';
         mkdir(PluginManager::$PLUGINS_PATH . '/default_colors/');
@@ -32,7 +32,7 @@ class PluginDefaultColorsTest extends TestCase
     /**
      * Remove sandbox files and folder
      */
-    public function tearDown()
+    protected function tearDown(): void
     {
         if (file_exists('sandbox/default_colors/default_colors.css.template')) {
             unlink('sandbox/default_colors/default_colors.css.template');

tests/plugins/PluginPlayvideosTest.php

@@ -19,7 +19,7 @@ class PluginPlayvideosTest extends \PHPUnit\Framework\TestCase
     /**
      * Reset plugin path
      */
-    public function setUp()
+    protected function setUp(): void
     {
         PluginManager::$PLUGINS_PATH = 'plugins';
     }

tests/plugins/PluginPubsubhubbubTest.php

@@ -21,7 +21,7 @@ class PluginPubsubhubbubTest extends \PHPUnit\Framework\TestCase
     /**
      * Reset plugin path
      */
-    public function setUp()
+    protected function setUp(): void
     {
         PluginManager::$PLUGINS_PATH = 'plugins';
     }

tests/plugins/PluginQrcodeTest.php

@@ -19,7 +19,7 @@ class PluginQrcodeTest extends \PHPUnit\Framework\TestCase
     /**
      * Reset plugin path
      */
-    public function setUp()
+    protected function setUp(): void
     {
         PluginManager::$PLUGINS_PATH = 'plugins';
     }

tests/plugins/PluginWallabagTest.php

@@ -15,7 +15,7 @@ class PluginWallabagTest extends \PHPUnit\Framework\TestCase
     /**
      * Reset plugin path
      */
-    public function setUp()
+    protected function setUp(): void
     {
         PluginManager::$PLUGINS_PATH = 'plugins';
     }

tests/plugins/WallabagInstanceTest.php

@@ -14,7 +14,7 @@ class WallabagInstanceTest extends \PHPUnit\Framework\TestCase
     /**
      * Reset plugin path
      */
-    public function setUp()
+    protected function setUp(): void
     {
         $this->instance = 'http://some.url';
     }