diff --git a/classes/InfoController.php b/classes/InfoController.php
index d86af83..f0753e9 100644
--- a/classes/InfoController.php
+++ b/classes/InfoController.php
@@ -25,16 +25,24 @@
 
 class InfoController
 {
+    /**
+     * @return self
+     */
+    public static function create()
+    {
+        return new self;
+    }
+
     public function defaultAction()
     {
         global $pth;
 
-        (new View('pfw'))
+        View::create('pfw')
             ->template('info')
             ->data([
                 'logo' => "{$pth['folder']['plugins']}pfw/pfw.png",
                 'version' => Plugin::VERSION,
-                'checks' => (new SystemCheckService)
+                'checks' => SystemCheckService::create()
                     ->minPhpVersion('5.4.0')
                     ->minXhVersion('1.6.3')
                     ->writable("{$pth['folder']['plugins']}pfw/css/")
diff --git a/classes/Plugin.php b/classes/Plugin.php
index 9a2ced9..3aa37c0 100644
--- a/classes/Plugin.php
+++ b/classes/Plugin.php
@@ -49,7 +49,7 @@ private function handleAdministration()
         switch ($admin) {
             case '':
                 ob_start();
-                (new InfoController)->defaultAction();
+                InfoController::create()->defaultAction();
                 $o .= ob_get_clean();
                 break;
             default:
diff --git a/classes/SystemCheckService.php b/classes/SystemCheckService.php
index 75c9a4b..a5f1376 100644
--- a/classes/SystemCheckService.php
+++ b/classes/SystemCheckService.php
@@ -34,6 +34,14 @@
  */
 class SystemCheckService
 {
+    /**
+     * @return self
+     */
+    public static function create()
+    {
+        return new self;
+    }
+
     /**
      * @var array
      */
diff --git a/classes/TestCase.php b/classes/TestCase.php
new file mode 100644
index 0000000..7dea7d4
--- /dev/null
+++ b/classes/TestCase.php
@@ -0,0 +1,70 @@
+<?php
+
+/*
+ * Copyright 2017 Christoph M. Becker
+ *
+ * This file is part of Pfw_XH.
+ *
+ * Pfw_XH is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * Pfw_XH is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with Pfw_XH.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+namespace Pfw;
+
+use PHPUnit\Framework\TestCase as PHPUnitTestCase;
+use PHPUnit_Extensions_MockFunction;
+use PHPUnit_Extensions_MockStaticMethod;
+
+abstract class TestCase extends PHPUnitTestCase
+{
+    /**
+     * Mocks a function in the scope of an object.
+     *
+     * @param string $function
+     * @param object $scopeObject
+     * @return PHPUnit_Extensions_MockFunction
+     */
+    protected function mockFunction($function, $scopeObject = null)
+    {
+        return new PHPUnit_Extensions_MockFunction($function, $scopeObject);
+    }
+
+    /**
+     * Mocks a static method in the scope of an object.
+     *
+     * @param string $class
+     * @param string $method
+     * @param object $scopeObject
+     * @return PHPUnit_Extensions_MockStaticMethod
+     */
+    protected function mockStaticMethod($class, $method, $scopeObject = null)
+    {
+        return new PHPUnit_Extensions_MockStaticMethod("$class::$method", $scopeObject);
+    }
+
+    /**
+     * (Re)defines a constant.
+     *
+     * @param string $name
+     * @param mixed $value
+     * @return void
+     */
+    protected function setConstant($name, $value)
+    {
+        if (defined($name)) {
+            runkit_constant_redefine($name, $value);
+        } else {
+            define($name, $value);
+        }
+    }
+}
diff --git a/classes/View/View.php b/classes/View/View.php
index 25f00bc..b29c12f 100644
--- a/classes/View/View.php
+++ b/classes/View/View.php
@@ -33,6 +33,15 @@
  */
 class View
 {
+    /**
+     * @param string $pluginname
+     * @return self
+     */
+    public function create($pluginname)
+    {
+        return new self($pluginname);
+    }
+
     /**
      * @var string
      */
diff --git a/composer.json b/composer.json
index 4185b58..11b4c43 100644
--- a/composer.json
+++ b/composer.json
@@ -6,6 +6,7 @@
         "phpmd/phpmd": "2.6.*",
         "bartlett/php-compatinfo": "5.0.*",
         "phpunit/phpunit": "5.7.*",
+        "tcz/phpunit-mockfunction": "1.0.*",
         "mikey179/vfsStream": "1.6.*"
     }
 }
diff --git a/composer.lock b/composer.lock
index bab9dff..37de793 100644
--- a/composer.lock
+++ b/composer.lock
@@ -4,26 +4,26 @@
         "Read more about it at https://getcomposer.org/doc/01-basic-usage.md#composer-lock-the-lock-file",
         "This file is @generated automatically"
     ],
-    "content-hash": "184f89bf79e573ec05e539b35073ca4b",
+    "content-hash": "79a99560419ccee9ac41f86ac323717f",
     "packages": [],
     "packages-dev": [
         {
             "name": "bartlett/php-compatinfo",
-            "version": "5.0.8",
+            "version": "5.0.9",
             "source": {
                 "type": "git",
                 "url": "https://github.com/llaville/php-compat-info.git",
-                "reference": "18913e8807d2ab02dea89b60e006ec395a131f0c"
+                "reference": "23db55a1c8f8a078e691bc66524fcb73eabbcb2c"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/llaville/php-compat-info/zipball/18913e8807d2ab02dea89b60e006ec395a131f0c",
-                "reference": "18913e8807d2ab02dea89b60e006ec395a131f0c",
+                "url": "https://api.github.com/repos/llaville/php-compat-info/zipball/23db55a1c8f8a078e691bc66524fcb73eabbcb2c",
+                "reference": "23db55a1c8f8a078e691bc66524fcb73eabbcb2c",
                 "shasum": ""
             },
             "require": {
-                "bartlett/php-compatinfo-db": "~1.23",
-                "bartlett/php-reflect": "~4.0",
+                "bartlett/php-compatinfo-db": "^1.23",
+                "bartlett/php-reflect": "^4.0",
                 "ext-json": "*",
                 "ext-libxml": "*",
                 "ext-pcre": "*",
@@ -32,13 +32,13 @@
                 "php": ">=5.4.0"
             },
             "require-dev": {
-                "bartlett/monolog-callbackfilterhandler": "~1.0",
-                "bartlett/monolog-growlhandler": "~1.0",
-                "bartlett/phpunit-loggertestlistener": "~1.5",
-                "bartlett/umlwriter": "~1.0",
-                "doctrine/cache": "~1.3",
-                "monolog/monolog": "~1.10",
-                "psr/log": "~1.0"
+                "bartlett/monolog-callbackfilterhandler": "^1.0",
+                "bartlett/monolog-growlhandler": "^1.0",
+                "bartlett/phpunit-loggertestlistener": "^1.5",
+                "bartlett/umlwriter": "^1.0",
+                "doctrine/cache": "^1.3",
+                "monolog/monolog": "^1.10",
+                "psr/log": "^1.0"
             },
             "suggest": {
                 "bartlett/monolog-callbackfilterhandler": "Advanced filtering strategies for Monolog",
@@ -81,20 +81,20 @@
                 "compatibility",
                 "version"
             ],
-            "time": "2017-07-17T17:11:49+00:00"
+            "time": "2017-12-06T13:55:22+00:00"
         },
         {
             "name": "bartlett/php-compatinfo-db",
-            "version": "1.25.0",
+            "version": "1.26.0",
             "source": {
                 "type": "git",
                 "url": "https://github.com/llaville/php-compatinfo-db.git",
-                "reference": "b5c31684aac0ca4f49eed632a65ce656d7626c31"
+                "reference": "be819ca85034b9e77b125ae3fa44a41f2fb51724"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/llaville/php-compatinfo-db/zipball/b5c31684aac0ca4f49eed632a65ce656d7626c31",
-                "reference": "b5c31684aac0ca4f49eed632a65ce656d7626c31",
+                "url": "https://api.github.com/repos/llaville/php-compatinfo-db/zipball/be819ca85034b9e77b125ae3fa44a41f2fb51724",
+                "reference": "be819ca85034b9e77b125ae3fa44a41f2fb51724",
                 "shasum": ""
             },
             "require": {
@@ -151,7 +151,7 @@
                 "compatibility",
                 "database"
             ],
-            "time": "2017-10-30T19:49:16+00:00"
+            "time": "2017-11-23T23:23:39+00:00"
         },
         {
             "name": "bartlett/php-reflect",
@@ -685,26 +685,26 @@
         },
         {
             "name": "pdepend/pdepend",
-            "version": "2.5.0",
+            "version": "2.5.1",
             "source": {
                 "type": "git",
                 "url": "https://github.com/pdepend/pdepend.git",
-                "reference": "0c50874333149c0dad5a2877801aed148f2767ff"
+                "reference": "9392319cbed95b12756945354c8b22be314b9c2b"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/pdepend/pdepend/zipball/0c50874333149c0dad5a2877801aed148f2767ff",
-                "reference": "0c50874333149c0dad5a2877801aed148f2767ff",
+                "url": "https://api.github.com/repos/pdepend/pdepend/zipball/9392319cbed95b12756945354c8b22be314b9c2b",
+                "reference": "9392319cbed95b12756945354c8b22be314b9c2b",
                 "shasum": ""
             },
             "require": {
                 "php": ">=5.3.7",
-                "symfony/config": "^2.3.0|^3",
-                "symfony/dependency-injection": "^2.3.0|^3",
-                "symfony/filesystem": "^2.3.0|^3"
+                "symfony/config": "^2.3.0|^3|^4",
+                "symfony/dependency-injection": "^2.3.0|^3|^4",
+                "symfony/filesystem": "^2.3.0|^3|^4"
             },
             "require-dev": {
-                "phpunit/phpunit": "^4.4.0,<4.8",
+                "phpunit/phpunit": "^4.8|^5.7",
                 "squizlabs/php_codesniffer": "^2.0.0"
             },
             "bin": [
@@ -721,7 +721,7 @@
                 "BSD-3-Clause"
             ],
             "description": "Official version of pdepend to be handled with Composer",
-            "time": "2017-01-19T14:23:36+00:00"
+            "time": "2017-12-06T21:23:07+00:00"
         },
         {
             "name": "phing/phing",
@@ -872,35 +872,29 @@
         },
         {
             "name": "phpdocumentor/reflection-docblock",
-            "version": "3.3.1",
+            "version": "3.3.2",
             "source": {
                 "type": "git",
                 "url": "https://github.com/phpDocumentor/ReflectionDocBlock.git",
-                "reference": "1119a9765990a24f4c5218a85032fb6f3a91eaff"
+                "reference": "bf329f6c1aadea3299f08ee804682b7c45b326a2"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/phpDocumentor/ReflectionDocBlock/zipball/1119a9765990a24f4c5218a85032fb6f3a91eaff",
-                "reference": "1119a9765990a24f4c5218a85032fb6f3a91eaff",
+                "url": "https://api.github.com/repos/phpDocumentor/ReflectionDocBlock/zipball/bf329f6c1aadea3299f08ee804682b7c45b326a2",
+                "reference": "bf329f6c1aadea3299f08ee804682b7c45b326a2",
                 "shasum": ""
             },
             "require": {
-                "php": "^7.0",
+                "php": "^5.6 || ^7.0",
                 "phpdocumentor/reflection-common": "^1.0.0",
                 "phpdocumentor/type-resolver": "^0.4.0",
                 "webmozart/assert": "^1.0"
             },
             "require-dev": {
-                "doctrine/instantiator": "~1.0.5",
-                "mockery/mockery": "^1.0",
-                "phpunit/phpunit": "^6.4"
+                "mockery/mockery": "^0.9.4",
+                "phpunit/phpunit": "^4.4"
             },
             "type": "library",
-            "extra": {
-                "branch-alias": {
-                    "dev-master": "4.x-dev"
-                }
-            },
             "autoload": {
                 "psr-4": {
                     "phpDocumentor\\Reflection\\": [
@@ -919,7 +913,7 @@
                 }
             ],
             "description": "With this component, a library can provide support for annotations via DocBlocks or otherwise retrieve information that is embedded in a DocBlock.",
-            "time": "2017-11-15T19:01:54+00:00"
+            "time": "2017-11-10T14:09:06+00:00"
         },
         {
             "name": "phpdocumentor/type-resolver",
@@ -1036,16 +1030,16 @@
         },
         {
             "name": "phpspec/prophecy",
-            "version": "v1.7.2",
+            "version": "1.7.3",
             "source": {
                 "type": "git",
                 "url": "https://github.com/phpspec/prophecy.git",
-                "reference": "c9b8c6088acd19d769d4cc0ffa60a9fe34344bd6"
+                "reference": "e4ed002c67da8eceb0eb8ddb8b3847bb53c5c2bf"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/phpspec/prophecy/zipball/c9b8c6088acd19d769d4cc0ffa60a9fe34344bd6",
-                "reference": "c9b8c6088acd19d769d4cc0ffa60a9fe34344bd6",
+                "url": "https://api.github.com/repos/phpspec/prophecy/zipball/e4ed002c67da8eceb0eb8ddb8b3847bb53c5c2bf",
+                "reference": "e4ed002c67da8eceb0eb8ddb8b3847bb53c5c2bf",
                 "shasum": ""
             },
             "require": {
@@ -1057,7 +1051,7 @@
             },
             "require-dev": {
                 "phpspec/phpspec": "^2.5|^3.2",
-                "phpunit/phpunit": "^4.8 || ^5.6.5"
+                "phpunit/phpunit": "^4.8.35 || ^5.7"
             },
             "type": "library",
             "extra": {
@@ -1095,7 +1089,7 @@
                 "spy",
                 "stub"
             ],
-            "time": "2017-09-04T11:05:03+00:00"
+            "time": "2017-11-24T13:59:53+00:00"
         },
         {
             "name": "phpunit/php-code-coverage",
@@ -1162,16 +1156,16 @@
         },
         {
             "name": "phpunit/php-file-iterator",
-            "version": "1.4.2",
+            "version": "1.4.5",
             "source": {
                 "type": "git",
                 "url": "https://github.com/sebastianbergmann/php-file-iterator.git",
-                "reference": "3cc8f69b3028d0f96a9078e6295d86e9bf019be5"
+                "reference": "730b01bc3e867237eaac355e06a36b85dd93a8b4"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/sebastianbergmann/php-file-iterator/zipball/3cc8f69b3028d0f96a9078e6295d86e9bf019be5",
-                "reference": "3cc8f69b3028d0f96a9078e6295d86e9bf019be5",
+                "url": "https://api.github.com/repos/sebastianbergmann/php-file-iterator/zipball/730b01bc3e867237eaac355e06a36b85dd93a8b4",
+                "reference": "730b01bc3e867237eaac355e06a36b85dd93a8b4",
                 "shasum": ""
             },
             "require": {
@@ -1205,7 +1199,7 @@
                 "filesystem",
                 "iterator"
             ],
-            "time": "2016-10-03T07:40:28+00:00"
+            "time": "2017-11-27T13:52:08+00:00"
         },
         {
             "name": "phpunit/php-text-template",
@@ -1299,16 +1293,16 @@
         },
         {
             "name": "phpunit/php-token-stream",
-            "version": "2.0.1",
+            "version": "2.0.2",
             "source": {
                 "type": "git",
                 "url": "https://github.com/sebastianbergmann/php-token-stream.git",
-                "reference": "9a02332089ac48e704c70f6cefed30c224e3c0b0"
+                "reference": "791198a2c6254db10131eecfe8c06670700904db"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/sebastianbergmann/php-token-stream/zipball/9a02332089ac48e704c70f6cefed30c224e3c0b0",
-                "reference": "9a02332089ac48e704c70f6cefed30c224e3c0b0",
+                "url": "https://api.github.com/repos/sebastianbergmann/php-token-stream/zipball/791198a2c6254db10131eecfe8c06670700904db",
+                "reference": "791198a2c6254db10131eecfe8c06670700904db",
                 "shasum": ""
             },
             "require": {
@@ -1344,7 +1338,7 @@
             "keywords": [
                 "tokenizer"
             ],
-            "time": "2017-08-20T05:47:52+00:00"
+            "time": "2017-11-27T05:48:46+00:00"
         },
         {
             "name": "phpunit/phpunit",
@@ -2098,16 +2092,16 @@
         },
         {
             "name": "seld/jsonlint",
-            "version": "1.6.1",
+            "version": "1.6.2",
             "source": {
                 "type": "git",
                 "url": "https://github.com/Seldaek/jsonlint.git",
-                "reference": "50d63f2858d87c4738d5b76a7dcbb99fa8cf7c77"
+                "reference": "7a30649c67ee0d19faacfd9fa2cfb6cc032d9b19"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/Seldaek/jsonlint/zipball/50d63f2858d87c4738d5b76a7dcbb99fa8cf7c77",
-                "reference": "50d63f2858d87c4738d5b76a7dcbb99fa8cf7c77",
+                "url": "https://api.github.com/repos/Seldaek/jsonlint/zipball/7a30649c67ee0d19faacfd9fa2cfb6cc032d9b19",
+                "reference": "7a30649c67ee0d19faacfd9fa2cfb6cc032d9b19",
                 "shasum": ""
             },
             "require": {
@@ -2143,7 +2137,7 @@
                 "parser",
                 "validator"
             ],
-            "time": "2017-06-18T15:11:04+00:00"
+            "time": "2017-11-30T15:34:22+00:00"
         },
         {
             "name": "squizlabs/php_codesniffer",
@@ -2225,30 +2219,30 @@
         },
         {
             "name": "symfony/config",
-            "version": "v3.3.13",
+            "version": "v3.4.1",
             "source": {
                 "type": "git",
                 "url": "https://github.com/symfony/config.git",
-                "reference": "8d2649077dc54dfbaf521d31f217383d82303c5f"
+                "reference": "1de51a6c76359897ab32c309934b93d036bccb60"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/symfony/config/zipball/8d2649077dc54dfbaf521d31f217383d82303c5f",
-                "reference": "8d2649077dc54dfbaf521d31f217383d82303c5f",
+                "url": "https://api.github.com/repos/symfony/config/zipball/1de51a6c76359897ab32c309934b93d036bccb60",
+                "reference": "1de51a6c76359897ab32c309934b93d036bccb60",
                 "shasum": ""
             },
             "require": {
                 "php": "^5.5.9|>=7.0.8",
-                "symfony/filesystem": "~2.8|~3.0"
+                "symfony/filesystem": "~2.8|~3.0|~4.0"
             },
             "conflict": {
                 "symfony/dependency-injection": "<3.3",
                 "symfony/finder": "<3.3"
             },
             "require-dev": {
-                "symfony/dependency-injection": "~3.3",
-                "symfony/finder": "~3.3",
-                "symfony/yaml": "~3.0"
+                "symfony/dependency-injection": "~3.3|~4.0",
+                "symfony/finder": "~3.3|~4.0",
+                "symfony/yaml": "~3.0|~4.0"
             },
             "suggest": {
                 "symfony/yaml": "To use the yaml reference dumper"
@@ -2256,7 +2250,7 @@
             "type": "library",
             "extra": {
                 "branch-alias": {
-                    "dev-master": "3.3-dev"
+                    "dev-master": "3.4-dev"
                 }
             },
             "autoload": {
@@ -2283,48 +2277,49 @@
             ],
             "description": "Symfony Config Component",
             "homepage": "https://symfony.com",
-            "time": "2017-11-07T14:16:22+00:00"
+            "time": "2017-11-19T20:09:36+00:00"
         },
         {
             "name": "symfony/console",
-            "version": "v3.3.13",
+            "version": "v3.4.1",
             "source": {
                 "type": "git",
                 "url": "https://github.com/symfony/console.git",
-                "reference": "63cd7960a0a522c3537f6326706d7f3b8de65805"
+                "reference": "2cdef78de8f54f68ff16a857e710e7302b47d4c7"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/symfony/console/zipball/63cd7960a0a522c3537f6326706d7f3b8de65805",
-                "reference": "63cd7960a0a522c3537f6326706d7f3b8de65805",
+                "url": "https://api.github.com/repos/symfony/console/zipball/2cdef78de8f54f68ff16a857e710e7302b47d4c7",
+                "reference": "2cdef78de8f54f68ff16a857e710e7302b47d4c7",
                 "shasum": ""
             },
             "require": {
                 "php": "^5.5.9|>=7.0.8",
-                "symfony/debug": "~2.8|~3.0",
+                "symfony/debug": "~2.8|~3.0|~4.0",
                 "symfony/polyfill-mbstring": "~1.0"
             },
             "conflict": {
-                "symfony/dependency-injection": "<3.3"
+                "symfony/dependency-injection": "<3.4",
+                "symfony/process": "<3.3"
             },
             "require-dev": {
                 "psr/log": "~1.0",
-                "symfony/config": "~3.3",
-                "symfony/dependency-injection": "~3.3",
-                "symfony/event-dispatcher": "~2.8|~3.0",
-                "symfony/filesystem": "~2.8|~3.0",
-                "symfony/process": "~2.8|~3.0"
+                "symfony/config": "~3.3|~4.0",
+                "symfony/dependency-injection": "~3.4|~4.0",
+                "symfony/event-dispatcher": "~2.8|~3.0|~4.0",
+                "symfony/lock": "~3.4|~4.0",
+                "symfony/process": "~3.3|~4.0"
             },
             "suggest": {
                 "psr/log": "For using the console logger",
                 "symfony/event-dispatcher": "",
-                "symfony/filesystem": "",
+                "symfony/lock": "",
                 "symfony/process": ""
             },
             "type": "library",
             "extra": {
                 "branch-alias": {
-                    "dev-master": "3.3-dev"
+                    "dev-master": "3.4-dev"
                 }
             },
             "autoload": {
@@ -2351,20 +2346,20 @@
             ],
             "description": "Symfony Console Component",
             "homepage": "https://symfony.com",
-            "time": "2017-11-16T15:24:32+00:00"
+            "time": "2017-12-02T18:20:11+00:00"
         },
         {
             "name": "symfony/debug",
-            "version": "v3.3.13",
+            "version": "v3.4.1",
             "source": {
                 "type": "git",
                 "url": "https://github.com/symfony/debug.git",
-                "reference": "74557880e2846b5c84029faa96b834da37e29810"
+                "reference": "fb2001e5d85f95d8b6ab94ae3be5d2672df128fd"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/symfony/debug/zipball/74557880e2846b5c84029faa96b834da37e29810",
-                "reference": "74557880e2846b5c84029faa96b834da37e29810",
+                "url": "https://api.github.com/repos/symfony/debug/zipball/fb2001e5d85f95d8b6ab94ae3be5d2672df128fd",
+                "reference": "fb2001e5d85f95d8b6ab94ae3be5d2672df128fd",
                 "shasum": ""
             },
             "require": {
@@ -2375,12 +2370,12 @@
                 "symfony/http-kernel": ">=2.3,<2.3.24|~2.4.0|>=2.5,<2.5.9|>=2.6,<2.6.2"
             },
             "require-dev": {
-                "symfony/http-kernel": "~2.8|~3.0"
+                "symfony/http-kernel": "~2.8|~3.0|~4.0"
             },
             "type": "library",
             "extra": {
                 "branch-alias": {
-                    "dev-master": "3.3-dev"
+                    "dev-master": "3.4-dev"
                 }
             },
             "autoload": {
@@ -2407,20 +2402,20 @@
             ],
             "description": "Symfony Debug Component",
             "homepage": "https://symfony.com",
-            "time": "2017-11-10T16:38:39+00:00"
+            "time": "2017-11-21T09:01:46+00:00"
         },
         {
             "name": "symfony/dependency-injection",
-            "version": "v3.3.13",
+            "version": "v3.4.1",
             "source": {
                 "type": "git",
                 "url": "https://github.com/symfony/dependency-injection.git",
-                "reference": "4e84f5af2c2d51ee3dee72df40b7fc08f49b4ab8"
+                "reference": "27810742895ad89e706ba5028e4f8fe425792b50"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/symfony/dependency-injection/zipball/4e84f5af2c2d51ee3dee72df40b7fc08f49b4ab8",
-                "reference": "4e84f5af2c2d51ee3dee72df40b7fc08f49b4ab8",
+                "url": "https://api.github.com/repos/symfony/dependency-injection/zipball/27810742895ad89e706ba5028e4f8fe425792b50",
+                "reference": "27810742895ad89e706ba5028e4f8fe425792b50",
                 "shasum": ""
             },
             "require": {
@@ -2430,15 +2425,16 @@
             "conflict": {
                 "symfony/config": "<3.3.1",
                 "symfony/finder": "<3.3",
-                "symfony/yaml": "<3.3"
+                "symfony/proxy-manager-bridge": "<3.4",
+                "symfony/yaml": "<3.4"
             },
             "provide": {
                 "psr/container-implementation": "1.0"
             },
             "require-dev": {
-                "symfony/config": "~3.3",
-                "symfony/expression-language": "~2.8|~3.0",
-                "symfony/yaml": "~3.3"
+                "symfony/config": "~3.3|~4.0",
+                "symfony/expression-language": "~2.8|~3.0|~4.0",
+                "symfony/yaml": "~3.4|~4.0"
             },
             "suggest": {
                 "symfony/config": "",
@@ -2450,7 +2446,7 @@
             "type": "library",
             "extra": {
                 "branch-alias": {
-                    "dev-master": "3.3-dev"
+                    "dev-master": "3.4-dev"
                 }
             },
             "autoload": {
@@ -2477,20 +2473,20 @@
             ],
             "description": "Symfony DependencyInjection Component",
             "homepage": "https://symfony.com",
-            "time": "2017-11-13T18:10:32+00:00"
+            "time": "2017-12-04T19:20:32+00:00"
         },
         {
             "name": "symfony/event-dispatcher",
-            "version": "v3.3.13",
+            "version": "v3.4.1",
             "source": {
                 "type": "git",
                 "url": "https://github.com/symfony/event-dispatcher.git",
-                "reference": "271d8c27c3ec5ecee6e2ac06016232e249d638d9"
+                "reference": "ca20b8f9ef149f40ff656d52965f240d85f7a8e4"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/symfony/event-dispatcher/zipball/271d8c27c3ec5ecee6e2ac06016232e249d638d9",
-                "reference": "271d8c27c3ec5ecee6e2ac06016232e249d638d9",
+                "url": "https://api.github.com/repos/symfony/event-dispatcher/zipball/ca20b8f9ef149f40ff656d52965f240d85f7a8e4",
+                "reference": "ca20b8f9ef149f40ff656d52965f240d85f7a8e4",
                 "shasum": ""
             },
             "require": {
@@ -2501,10 +2497,10 @@
             },
             "require-dev": {
                 "psr/log": "~1.0",
-                "symfony/config": "~2.8|~3.0",
-                "symfony/dependency-injection": "~3.3",
-                "symfony/expression-language": "~2.8|~3.0",
-                "symfony/stopwatch": "~2.8|~3.0"
+                "symfony/config": "~2.8|~3.0|~4.0",
+                "symfony/dependency-injection": "~3.3|~4.0",
+                "symfony/expression-language": "~2.8|~3.0|~4.0",
+                "symfony/stopwatch": "~2.8|~3.0|~4.0"
             },
             "suggest": {
                 "symfony/dependency-injection": "",
@@ -2513,7 +2509,7 @@
             "type": "library",
             "extra": {
                 "branch-alias": {
-                    "dev-master": "3.3-dev"
+                    "dev-master": "3.4-dev"
                 }
             },
             "autoload": {
@@ -2540,20 +2536,20 @@
             ],
             "description": "Symfony EventDispatcher Component",
             "homepage": "https://symfony.com",
-            "time": "2017-11-05T15:47:03+00:00"
+            "time": "2017-11-09T14:14:31+00:00"
         },
         {
             "name": "symfony/filesystem",
-            "version": "v3.3.13",
+            "version": "v3.4.1",
             "source": {
                 "type": "git",
                 "url": "https://github.com/symfony/filesystem.git",
-                "reference": "77db266766b54db3ee982fe51868328b887ce15c"
+                "reference": "de56eee71e0a128d8c54ccc1909cdefd574bad0f"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/symfony/filesystem/zipball/77db266766b54db3ee982fe51868328b887ce15c",
-                "reference": "77db266766b54db3ee982fe51868328b887ce15c",
+                "url": "https://api.github.com/repos/symfony/filesystem/zipball/de56eee71e0a128d8c54ccc1909cdefd574bad0f",
+                "reference": "de56eee71e0a128d8c54ccc1909cdefd574bad0f",
                 "shasum": ""
             },
             "require": {
@@ -2562,7 +2558,7 @@
             "type": "library",
             "extra": {
                 "branch-alias": {
-                    "dev-master": "3.3-dev"
+                    "dev-master": "3.4-dev"
                 }
             },
             "autoload": {
@@ -2589,20 +2585,20 @@
             ],
             "description": "Symfony Filesystem Component",
             "homepage": "https://symfony.com",
-            "time": "2017-11-07T14:12:55+00:00"
+            "time": "2017-11-19T18:59:05+00:00"
         },
         {
             "name": "symfony/finder",
-            "version": "v3.3.13",
+            "version": "v3.4.1",
             "source": {
                 "type": "git",
                 "url": "https://github.com/symfony/finder.git",
-                "reference": "138af5ec075d4b1d1bd19de08c38a34bb2d7d880"
+                "reference": "dac8d7db537bac7ad8143eb11360a8c2231f251a"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/symfony/finder/zipball/138af5ec075d4b1d1bd19de08c38a34bb2d7d880",
-                "reference": "138af5ec075d4b1d1bd19de08c38a34bb2d7d880",
+                "url": "https://api.github.com/repos/symfony/finder/zipball/dac8d7db537bac7ad8143eb11360a8c2231f251a",
+                "reference": "dac8d7db537bac7ad8143eb11360a8c2231f251a",
                 "shasum": ""
             },
             "require": {
@@ -2611,7 +2607,7 @@
             "type": "library",
             "extra": {
                 "branch-alias": {
-                    "dev-master": "3.3-dev"
+                    "dev-master": "3.4-dev"
                 }
             },
             "autoload": {
@@ -2638,7 +2634,7 @@
             ],
             "description": "Symfony Finder Component",
             "homepage": "https://symfony.com",
-            "time": "2017-11-05T15:47:03+00:00"
+            "time": "2017-11-05T16:10:10+00:00"
         },
         {
             "name": "symfony/polyfill-mbstring",
@@ -2701,16 +2697,16 @@
         },
         {
             "name": "symfony/stopwatch",
-            "version": "v3.3.13",
+            "version": "v3.4.1",
             "source": {
                 "type": "git",
                 "url": "https://github.com/symfony/stopwatch.git",
-                "reference": "1e93c3139ef6c799831fe03efd0fb1c7aecb3365"
+                "reference": "52510fe1aefdc1c5d2076ac6030421d387e689d1"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/symfony/stopwatch/zipball/1e93c3139ef6c799831fe03efd0fb1c7aecb3365",
-                "reference": "1e93c3139ef6c799831fe03efd0fb1c7aecb3365",
+                "url": "https://api.github.com/repos/symfony/stopwatch/zipball/52510fe1aefdc1c5d2076ac6030421d387e689d1",
+                "reference": "52510fe1aefdc1c5d2076ac6030421d387e689d1",
                 "shasum": ""
             },
             "require": {
@@ -2719,7 +2715,7 @@
             "type": "library",
             "extra": {
                 "branch-alias": {
-                    "dev-master": "3.3-dev"
+                    "dev-master": "3.4-dev"
                 }
             },
             "autoload": {
@@ -2746,27 +2742,30 @@
             ],
             "description": "Symfony Stopwatch Component",
             "homepage": "https://symfony.com",
-            "time": "2017-11-10T19:02:53+00:00"
+            "time": "2017-11-07T14:28:09+00:00"
         },
         {
             "name": "symfony/yaml",
-            "version": "v3.3.13",
+            "version": "v3.4.1",
             "source": {
                 "type": "git",
                 "url": "https://github.com/symfony/yaml.git",
-                "reference": "0938408c4faa518d95230deabb5f595bf0de31b9"
+                "reference": "f6a99b95b338799645fe9f7880d7d4ca1bf79cc1"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/symfony/yaml/zipball/0938408c4faa518d95230deabb5f595bf0de31b9",
-                "reference": "0938408c4faa518d95230deabb5f595bf0de31b9",
+                "url": "https://api.github.com/repos/symfony/yaml/zipball/f6a99b95b338799645fe9f7880d7d4ca1bf79cc1",
+                "reference": "f6a99b95b338799645fe9f7880d7d4ca1bf79cc1",
                 "shasum": ""
             },
             "require": {
                 "php": "^5.5.9|>=7.0.8"
             },
+            "conflict": {
+                "symfony/console": "<3.4"
+            },
             "require-dev": {
-                "symfony/console": "~2.8|~3.0"
+                "symfony/console": "~3.4|~4.0"
             },
             "suggest": {
                 "symfony/console": "For validating YAML files using the lint command"
@@ -2774,7 +2773,7 @@
             "type": "library",
             "extra": {
                 "branch-alias": {
-                    "dev-master": "3.3-dev"
+                    "dev-master": "3.4-dev"
                 }
             },
             "autoload": {
@@ -2801,53 +2800,41 @@
             ],
             "description": "Symfony Yaml Component",
             "homepage": "https://symfony.com",
-            "time": "2017-11-10T18:26:04+00:00"
+            "time": "2017-12-04T18:15:22+00:00"
         },
         {
-            "name": "tedivm/jshrink",
-            "version": "v1.2.0",
+            "name": "tcz/phpunit-mockfunction",
+            "version": "v1.0.0",
             "source": {
                 "type": "git",
-                "url": "https://github.com/tedious/JShrink.git",
-                "reference": "667e99774d230525d4d3dc2a50da7ba6b1d56bad"
+                "url": "https://github.com/tcz/phpunit-mockfunction.git",
+                "reference": "87340f714620d7d6f8bb7fdd1f0ae50533acdcc3"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/tedious/JShrink/zipball/667e99774d230525d4d3dc2a50da7ba6b1d56bad",
-                "reference": "667e99774d230525d4d3dc2a50da7ba6b1d56bad",
+                "url": "https://api.github.com/repos/tcz/phpunit-mockfunction/zipball/87340f714620d7d6f8bb7fdd1f0ae50533acdcc3",
+                "reference": "87340f714620d7d6f8bb7fdd1f0ae50533acdcc3",
                 "shasum": ""
             },
             "require": {
-                "php": "^5.6|^7.0"
-            },
-            "require-dev": {
-                "fabpot/php-cs-fixer": "0.4.0",
-                "phpunit/phpunit": "4.0.*",
-                "satooshi/php-coveralls": "^0.7.0"
+                "ext-runkit": "*"
             },
             "type": "library",
             "autoload": {
-                "psr-0": {
-                    "JShrink": "src/"
-                }
+                "classmap": [
+                    "PHPUnit/"
+                ]
             },
             "notification-url": "https://packagist.org/downloads/",
-            "license": [
-                "BSD-3-Clause"
-            ],
-            "authors": [
-                {
-                    "name": "Robert Hafner",
-                    "email": "tedivm@tedivm.com"
-                }
-            ],
-            "description": "Javascript Minifier built in PHP",
-            "homepage": "http://github.com/tedious/JShrink",
+            "description": "PHPUnit extension that uses runkit to mock PHP functions (both user-defined and system)",
             "keywords": [
-                "javascript",
-                "minifier"
+                "mock",
+                "phpunit",
+                "runkit",
+                "testing",
+                "unit"
             ],
-            "time": "2017-05-30T02:59:46+00:00"
+            "time": "2014-03-20T18:50:53+00:00"
         },
         {
             "name": "webmozart/assert",
diff --git a/tests/unit/HtmlStringTest.php b/tests/unit/HtmlStringTest.php
index f632155..c0f9ac0 100644
--- a/tests/unit/HtmlStringTest.php
+++ b/tests/unit/HtmlStringTest.php
@@ -21,7 +21,7 @@
 
 namespace Pfw;
 
-use PHPUnit\Framework\TestCase;
+use Pfw\TestCase;
 use Pfw\View\HtmlString;
 
 class HtmlStringTest extends TestCase
diff --git a/tests/unit/InfoControllerTest.php b/tests/unit/InfoControllerTest.php
index 223f546..8cd55bc 100644
--- a/tests/unit/InfoControllerTest.php
+++ b/tests/unit/InfoControllerTest.php
@@ -21,7 +21,7 @@
 
 namespace Pfw;
 
-use PHPUnit\Framework\TestCase;
+use Pfw\TestCase;
 use Pfw\View\View;
 
 class InfoControllerTest extends TestCase
@@ -39,7 +39,8 @@ public function testDefaultAction()
         $systemCheckServiceMock->expects($this->any())->method('minXhVersion')->willReturn($systemCheckServiceMock);
         $systemCheckServiceMock->expects($this->any())->method('writable')->willReturn($systemCheckServiceMock);
         $systemCheckServiceMock->expects($this->once())->method('getChecks')->willReturn([]);
-        uopz_set_mock(SystemCheckService::class, $systemCheckServiceMock);
+        $scscreatemock = $this->mockStaticMethod(SystemCheckService::class, 'create');
+        $scscreatemock->expects($this->any())->willReturn($systemCheckServiceMock);
         $viewMock = $this->createMock(View::class);
         $viewMock->expects($this->once())->method('template')->with('info')->willReturn($viewMock);
         $viewMock->expects($this->once())->method('data')->with([
@@ -48,9 +49,10 @@ public function testDefaultAction()
             'checks' => []
         ])->willReturn($viewMock);
         $viewMock->expects($this->once())->method('render');
-        uopz_set_mock(View::class, $viewMock);
+        $viewcreatemock = $this->mockStaticMethod(View::class, 'create');
+        $viewcreatemock->expects($this->any())->willReturn($viewMock);
         (new InfoController)->defaultAction();
-        uopz_unset_mock(View::class);
-        uopz_unset_mock(SystemCheckService::class);
+        $viewcreatemock->restore();
+        $scscreatemock->restore();
     }
 }
diff --git a/tests/unit/PluginTest.php b/tests/unit/PluginTest.php
index c68fd7d..d83dca5 100644
--- a/tests/unit/PluginTest.php
+++ b/tests/unit/PluginTest.php
@@ -21,24 +21,38 @@
 
 namespace Pfw;
 
-use PHPUnit\Framework\TestCase;
+use Pfw\TestCase;
 
 class PluginTest extends TestCase
 {
+    /**
+     * @var object
+     */
+    private $rspmimock;
+
+    /**
+     * @var object
+     */
+    private $wpamock;
+
+    /**
+     * @var object
+     */
+    private $ppamock;
+
     /**
      * @return void
      */
     public function testAlwaysRegistersPluginMenu()
     {
-        uopz_redefine('XH_ADM', true);
-        uopz_set_return('XH_registerStandardPluginMenuItems', function ($showMain) use (&$registered) {
-            $registered = $showMain === false;
-        }, true);
-        uopz_set_return('XH_wantsPluginAdministration', false);
+        $this->setConstant('XH_ADM', true);
+        $rspmimock = $this->mockFunction('XH_registerStandardPluginMenuItems');
+        $rspmimock->expects($this->once());
+        $wpamock = $this->mockFunction('XH_wantsPluginAdministration');
+        $wpamock->expects($this->any())->willReturn(false);
         (new Plugin)->run();
-        $this->assertTrue($registered);
-        uopz_unset_return('XH_registerStandardPluginMenuItems');
-        uopz_unset_return('XH_wantsPluginAdministration');
+        $rspmimock->restore();
+        $wpamock->restore();
     }
 
     /**
@@ -50,10 +64,13 @@ public function testPluginInfo()
 
         $admin = '';
         $this->setUpPluginAdministrationStubs();
+        $this->wpamock->expects($this->any())->willReturn(true);
         $infoControllerMock = $this->createMock(InfoController::class);
         $infoControllerMock->expects($this->once())->method('defaultAction');
-        uopz_set_mock(InfoController::class, $infoControllerMock);
+        $iccmock = $this->mockStaticMethod(InfoController::class, 'create');
+        $iccmock->expects($this->any())->willReturn($infoControllerMock);
         (new Plugin)->run();
+        $iccmock->restore();
         $this->tearDownPluginAdministrationStubs();
     }
 
@@ -67,13 +84,12 @@ public function testLanguageAdministration()
         $admin = 'plugin_language';
         $action = 'plugin_edit';
         $this->setUpPluginAdministrationStubs();
-        uopz_set_return('plugin_admin_common', function () use (&$called) {
-            $called = true;
-        }, true);
+        $this->wpamock->expects($this->any())->willReturn(true);
+        $pacmock = $this->mockFunction('plugin_admin_common');
+        $pacmock->expects($this->once())->willReturn(null);
         (new Plugin)->run();
-        $this->assertTrue($called);
         $this->tearDownPluginAdministrationStubs();
-        uopz_unset_return('plugin_admin_common');
+        $pacmock->restore();
     }
 
     /**
@@ -81,10 +97,10 @@ public function testLanguageAdministration()
      */
     private function setUpPluginAdministrationStubs()
     {
-        uopz_redefine('XH_ADM', true);
-        uopz_set_return('XH_registerStandardPluginMenuItems', null);
-        uopz_set_return('XH_wantsPluginAdministration', true);
-        uopz_set_return('print_plugin_admin', null);
+        $this->setConstant('XH_ADM', true);
+        $this->rspmimock = $this->mockFunction('XH_registerStandardPluginMenuItems');
+        $this->wpamock = $this->mockFunction('XH_wantsPluginAdministration');
+        $this->ppamock = $this->mockFunction('print_plugin_admin');
     }
 
     /**
@@ -92,8 +108,8 @@ private function setUpPluginAdministrationStubs()
      */
     private function tearDownPluginAdministrationStubs()
     {
-        uopz_unset_return('XH_registerStandardPluginMenuItems');
-        uopz_unset_return('XH_wantsPluginAdministration');
-        uopz_unset_return('print_plugin_admin');
+        $this->rspmimock->restore();
+        $this->wpamock->restore();
+        $this->ppamock->restore();
     }
 }
diff --git a/tests/unit/SystemCheckServiceTest.php b/tests/unit/SystemCheckServiceTest.php
index fb6906b..bae3652 100644
--- a/tests/unit/SystemCheckServiceTest.php
+++ b/tests/unit/SystemCheckServiceTest.php
@@ -21,7 +21,7 @@
 
 namespace Pfw;
 
-use PHPUnit\Framework\TestCase;
+use Pfw\TestCase;
 
 class SystemCheckServiceTest extends TestCase
 {
@@ -73,7 +73,7 @@ public function testExtension()
      */
     public function testMinXhVersion()
     {
-        uopz_redefine('CMSIMPLE_XH_VERSION', 'CMSimple_XH 1.7.0');
+        $this->setConstant('CMSIMPLE_XH_VERSION', 'CMSimple_XH 1.7.0');
         $subject = new SystemCheckService;
 
         $subject->minXhVersion('1.6.3');
@@ -90,7 +90,8 @@ public function testMinXhVersion()
      */
     public function testPlugin()
     {
-        uopz_set_return('is_dir', true);
+        $isdirmock = $this->mockFunction('is_dir');
+        $isdirmock->expects($this->any())->willReturn(true);
         $subject = new SystemCheckService;
         
         $subject->plugin('pagemanager');
@@ -100,7 +101,7 @@ public function testPlugin()
         $this->assertCount(1, $checks);
         $this->assertEquals(SystemCheck::SUCCESS, $checks[0]->getState());
 
-        uopz_unset_return('is_dir');
+        $isdirmock->restore();
     }
 
     /**
@@ -109,7 +110,8 @@ public function testPlugin()
      */
     public function testWritable()
     {
-        uopz_set_return('is_writable', true);
+        $iswritablemock = $this->mockFunction('is_writable');
+        $iswritablemock->expects($this->any())->willReturn(true);
         $subject = new SystemCheckService;
 
         $subject->writable('foo/bar/baz');
@@ -119,6 +121,6 @@ public function testWritable()
         $this->assertCount(1, $checks);
         $this->assertEquals(SystemCheck::SUCCESS, $checks[0]->getState());
 
-        uopz_unset_return('is_writable');
+        $iswritablemock->restore();
     }
 }
diff --git a/tests/unit/SystemCheckTest.php b/tests/unit/SystemCheckTest.php
index f481a18..2575a8c 100644
--- a/tests/unit/SystemCheckTest.php
+++ b/tests/unit/SystemCheckTest.php
@@ -21,7 +21,7 @@
 
 namespace Pfw;
 
-use PHPUnit\Framework\TestCase;
+use Pfw\TestCase;
 
 class SystemCheckTest extends TestCase
 {
diff --git a/tests/unit/UrlTest.php b/tests/unit/UrlTest.php
index 774ddcc..b44b51b 100644
--- a/tests/unit/UrlTest.php
+++ b/tests/unit/UrlTest.php
@@ -21,7 +21,7 @@
 
 namespace Pfw;
 
-use PHPUnit\Framework\TestCase;
+use Pfw\TestCase;
 
 class UrlTest extends TestCase
 {
@@ -116,7 +116,7 @@ public function testAbsoulte()
         $sn = '/';
         $su = 'foo';
         $_GET = ['foo' => '', 'bar' => 'baz'];
-        uopz_redefine('CMSIMPLE_URL', 'http://example.com/');
+        $this->setConstant('CMSIMPLE_URL', 'http://example.com/');
         $this->assertEquals('http://example.com/?foo&bar=baz', Url::getCurrent()->getAbsolute());
     }
 
diff --git a/tests/unit/ViewTest.php b/tests/unit/ViewTest.php
index 7fd1b09..7799d22 100644
--- a/tests/unit/ViewTest.php
+++ b/tests/unit/ViewTest.php
@@ -21,7 +21,7 @@
 
 namespace Pfw;
 
-use PHPUnit\Framework\TestCase;
+use Pfw\TestCase;
 use org\bovigo\vfs\vfsStream;
 use org\bovigo\vfs\vfsStreamDirectory;
 use Pfw\View\View;
@@ -122,8 +122,8 @@ public function testI18n()
             ],
             'foo' => [
                 'foo_bar' => 'A %s, a %s and a <foobar>.',
-                'foo_plural_0' => '%s foo.',
-                'foo_plural_1' => '%s foos.'
+                'foo_plural#0' => '%s foo.',
+                'foo_plural#1' => '%s foos.'
             ]
         ];
         $this->expectOutputString(
diff --git a/tests/unit/ViewValueTest.php b/tests/unit/ViewValueTest.php
index f00f05b..bcfe127 100644
--- a/tests/unit/ViewValueTest.php
+++ b/tests/unit/ViewValueTest.php
@@ -21,7 +21,7 @@
 
 namespace Pfw;
 
-use PHPUnit\Framework\TestCase;
+use Pfw\TestCase;
 use stdClass;
 use Pfw\View\View;
 use Pfw\View\ViewValue;