diff --git a/.circleci/config.yml b/.circleci/config.yml
index 9757a08..f7aeaaa 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -72,9 +72,9 @@ _custom:
         working_directory: '~/repo'
         steps:
             - 'checkout'
-            -
-                run:
-                    <<: *step__run__upgrade_git
+#            -
+#                run:
+#                    <<: *step__run__upgrade_git
             -
                 run:
                     <<: *step__run__install_php_extensions
diff --git a/composer.json b/composer.json
index 54f048c..0f0b7e4 100644
--- a/composer.json
+++ b/composer.json
@@ -1,7 +1,7 @@
 {
     "name": "sweetchuck/robo-phpmd",
     "description": "Template to create a new Robo task.",
-    "license": "GPL-2.0",
+    "license": "GPL-2.0-or-later",
     "config": {
         "bin-dir": "bin",
         "sort-packages": true
@@ -13,18 +13,17 @@
         "consolidation/robo": "^1.0",
         "danielstjules/stringy": "^3.1",
         "phpmd/phpmd": "^2.6",
-        "symfony/process": "^3.2"
+        "webmozart/path-util": "^2.3"
     },
     "require-dev": {
         "codeception/codeception": "^2.2",
         "mikey179/vfsStream": "^1.6",
-        "sweetchuck/codeception-module-robo-task-runner": "^0.0",
+        "sweetchuck/codeception-module-robo-task-runner": "^0.4",
         "sweetchuck/git-hooks": "^0.0",
         "sweetchuck/robo-git": "^0.0",
         "sweetchuck/robo-phpcs": "^0.0",
-        "symfony/finder": "^3.2",
-        "symfony/yaml": "^3.2",
-        "webmozart/path-util": "^2.3"
+        "symfony/finder": "^3.2 || ^4.0",
+        "symfony/yaml": "^3.2 || ^4.0"
     },
     "autoload": {
         "psr-4": {
diff --git a/composer.lock b/composer.lock
index d8015c8..833dab1 100644
--- a/composer.lock
+++ b/composer.lock
@@ -1,23 +1,23 @@
 {
     "_readme": [
         "This file locks the dependencies of your project to a known state",
-        "Read more about it at https://getcomposer.org/doc/01-basic-usage.md#composer-lock-the-lock-file",
+        "Read more about it at https://getcomposer.org/doc/01-basic-usage.md#installing-dependencies",
         "This file is @generated automatically"
     ],
-    "content-hash": "15172800f4afe33061b5f4f3cbb60002",
+    "content-hash": "72427e1de54be13d839b62d27e7383c4",
     "packages": [
         {
             "name": "consolidation/annotated-command",
-            "version": "2.8.2",
+            "version": "2.8.3",
             "source": {
                 "type": "git",
                 "url": "https://github.com/consolidation/annotated-command.git",
-                "reference": "e97c38717eae23a2bafcf3f09438290eee6ebeb4"
+                "reference": "8f8f5da2ca06fbd3a85f7d551c49f844b7c59437"
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                 "type": "zip",
-                "url": "https://api.github.com/repos/consolidation/annotated-command/zipball/e97c38717eae23a2bafcf3f09438290eee6ebeb4",
-                "reference": "e97c38717eae23a2bafcf3f09438290eee6ebeb4",
+                "url": "https://api.github.com/repos/consolidation/annotated-command/zipball/8f8f5da2ca06fbd3a85f7d551c49f844b7c59437",
+                "reference": "8f8f5da2ca06fbd3a85f7d551c49f844b7c59437",
                 "shasum": ""
             },
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@@ -29,6 +29,7 @@
                 "symfony/finder": "^2.5|^3|^4"
             },
             "require-dev": {
+                "greg-1-anderson/composer-test-scenarios": "^1",
                 "phpunit/phpunit": "^4.8",
                 "satooshi/php-coveralls": "^1.0.2 | dev-master",
                 "squizlabs/php_codesniffer": "^2.7"
@@ -55,7 +56,7 @@
                 }
             ],
             "description": "Initialize Symfony Console commands from annotated command class methods.",
-            "time": "2017-11-29T16:23:23+00:00"
+            "time": "2018-02-23T16:32:04+00:00"
         },
         {
             "name": "consolidation/config",
@@ -161,16 +162,16 @@
         },
         {
             "name": "consolidation/output-formatters",
-            "version": "3.1.13",
+            "version": "3.2.0",
             "source": {
                 "type": "git",
                 "url": "https://github.com/consolidation/output-formatters.git",
-                "reference": "3188461e965b32148c8fb85261833b2b72d34b8c"
+                "reference": "da889e4bce19f145ca4ec5b1725a946f4eb625a9"
             },
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-                "url": "https://api.github.com/repos/consolidation/output-formatters/zipball/3188461e965b32148c8fb85261833b2b72d34b8c",
-                "reference": "3188461e965b32148c8fb85261833b2b72d34b8c",
+                "url": "https://api.github.com/repos/consolidation/output-formatters/zipball/da889e4bce19f145ca4ec5b1725a946f4eb625a9",
+                "reference": "da889e4bce19f145ca4ec5b1725a946f4eb625a9",
                 "shasum": ""
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@@ -179,11 +180,17 @@
                 "symfony/finder": "^2.5|^3|^4"
             },
             "require-dev": {
-                "phpunit/phpunit": "^4.8",
-                "satooshi/php-coveralls": "^1.0.2 | dev-master",
+                "g-1-a/composer-test-scenarios": "^2",
+                "phpunit/phpunit": "^5.7.27",
+                "satooshi/php-coveralls": "^2",
                 "squizlabs/php_codesniffer": "^2.7",
+                "symfony/console": "3.2.3",
+                "symfony/var-dumper": "^2.8|^3|^4",
                 "victorjonsson/markdowndocs": "^1.3"
             },
+            "suggest": {
+                "symfony/var-dumper": "For using the var_dump formatter"
+            },
             "type": "library",
             "extra": {
                 "branch-alias": {
@@ -206,20 +213,20 @@
                 }
             ],
             "description": "Format text by applying transformations provided by plug-in formatters.",
-            "time": "2017-11-29T15:25:38+00:00"
+            "time": "2018-03-20T15:18:32+00:00"
         },
         {
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-            "version": "1.2.1",
+            "version": "1.2.3",
             "source": {
                 "type": "git",
                 "url": "https://github.com/consolidation/Robo.git",
-                "reference": "b6296f1cf1088f1a11b0b819f9e42ef6f00b79a9"
+                "reference": "54a13e268917b92576d75e10dca8227b95a574d9"
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-                "reference": "b6296f1cf1088f1a11b0b819f9e42ef6f00b79a9",
+                "url": "https://api.github.com/repos/consolidation/Robo/zipball/54a13e268917b92576d75e10dca8227b95a574d9",
+                "reference": "54a13e268917b92576d75e10dca8227b95a574d9",
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@@ -243,8 +250,11 @@
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                 "codeception/base": "^2.3.7",
                 "codeception/verify": "^0.3.2",
-                "greg-1-anderson/composer-test-scenarios": "^1",
+                "g-1-a/composer-test-scenarios": "^2",
+                "goaop/framework": "~2.1.2",
+                "goaop/parser-reflection": "^1.1.0",
                 "natxet/cssmin": "3.0.4",
+                "nikic/php-parser": "^3.1.5",
                 "patchwork/jsqueeze": "~2",
                 "pear/archive_tar": "^1.4.2",
                 "phpunit/php-code-coverage": "~2|~4",
@@ -283,7 +293,7 @@
                 }
             ],
             "description": "Modern task runner",
-            "time": "2017-12-29T06:48:35+00:00"
+            "time": "2018-04-06T05:27:37+00:00"
         },
         {
             "name": "container-interop/container-interop",
@@ -795,16 +805,16 @@
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         {
             "name": "symfony/config",
-            "version": "v4.0.3",
+            "version": "v4.0.9",
             "source": {
                 "type": "git",
                 "url": "https://github.com/symfony/config.git",
-                "reference": "0e86d267db0851cf55f339c97df00d693fe8592f"
+                "reference": "7c19370ab04e9ac05b74a504198e165f5ccf6dd8"
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-                "reference": "0e86d267db0851cf55f339c97df00d693fe8592f",
+                "url": "https://api.github.com/repos/symfony/config/zipball/7c19370ab04e9ac05b74a504198e165f5ccf6dd8",
+                "reference": "7c19370ab04e9ac05b74a504198e165f5ccf6dd8",
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@@ -815,6 +825,8 @@
                 "symfony/finder": "<3.4"
             },
             "require-dev": {
+                "symfony/dependency-injection": "~3.4|~4.0",
+                "symfony/event-dispatcher": "~3.4|~4.0",
                 "symfony/finder": "~3.4|~4.0",
                 "symfony/yaml": "~3.4|~4.0"
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@@ -851,25 +863,24 @@
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             "description": "Symfony Config Component",
             "homepage": "https://symfony.com",
-            "time": "2018-01-03T07:38:00+00:00"
+            "time": "2018-03-19T22:35:49+00:00"
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         {
             "name": "symfony/console",
-            "version": "v3.4.3",
+            "version": "v4.0.9",
             "source": {
                 "type": "git",
                 "url": "https://github.com/symfony/console.git",
-                "reference": "8394c8ef121949e8f858f13bc1e34f05169e4e7d"
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-                "reference": "8394c8ef121949e8f858f13bc1e34f05169e4e7d",
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-                "symfony/debug": "~2.8|~3.0|~4.0",
+                "php": "^7.1.3",
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@@ -878,14 +889,14 @@
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-                "symfony/config": "~3.3|~4.0",
+                "symfony/config": "~3.4|~4.0",
                 "symfony/dependency-injection": "~3.4|~4.0",
-                "symfony/event-dispatcher": "~2.8|~3.0|~4.0",
+                "symfony/event-dispatcher": "~3.4|~4.0",
                 "symfony/lock": "~3.4|~4.0",
-                "symfony/process": "~3.3|~4.0"
+                "symfony/process": "~3.4|~4.0"
             },
             "suggest": {
-                "psr/log": "For using the console logger",
+                "psr/log-implementation": "For using the console logger",
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@@ -893,7 +904,7 @@
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+                    "dev-master": "4.0-dev"
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@@ -920,76 +931,20 @@
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-            "license": [
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-                }
-            ],
-            "description": "Symfony Debug Component",
-            "homepage": "https://symfony.com",
-            "time": "2018-01-03T17:15:19+00:00"
+            "time": "2018-04-30T01:23:47+00:00"
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-            "version": "v4.0.3",
+            "version": "v4.0.9",
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-                "reference": "67bf5e4f4da85624f30a5e43b7f43225c8b71959"
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@@ -1047,20 +1002,20 @@
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-            "time": "2018-01-04T15:52:56+00:00"
+            "time": "2018-04-30T01:05:59+00:00"
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-            "version": "v4.0.3",
+            "version": "v4.0.9",
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@@ -1110,29 +1065,29 @@
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+            "time": "2018-04-06T07:35:43+00:00"
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-            "version": "v3.4.3",
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@@ -1159,29 +1114,29 @@
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-            "time": "2018-01-03T07:37:34+00:00"
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@@ -1208,20 +1163,20 @@
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@@ -1233,7 +1188,7 @@
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@@ -1267,29 +1222,29 @@
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-            "time": "2017-10-11T12:05:26+00:00"
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-                "type": "git",
-                "url": "https://github.com/webmozart/assert.git",
-                "reference": "2db61e59ff05fe5126d152bd0655c9ea113e550f"
-            },
-            "dist": {
-                "type": "zip",
-                "url": "https://api.github.com/repos/webmozart/assert/zipball/2db61e59ff05fe5126d152bd0655c9ea113e550f",
-                "reference": "2db61e59ff05fe5126d152bd0655c9ea113e550f",
-                "shasum": ""
-            },
-            "require": {
-                "php": "^5.3.3 || ^7.0"
-            },
-            "require-dev": {
-                "phpunit/phpunit": "^4.6",
-                "sebastian/version": "^1.0.1"
-            },
-            "type": "library",
-            "extra": {
-                "branch-alias": {
-                    "dev-master": "1.3-dev"
-                }
-            },
-            "autoload": {
-                "psr-4": {
-                    "Webmozart\\Assert\\": "src/"
-                }
-            },
-            "notification-url": "https://packagist.org/downloads/",
-            "license": [
-                "MIT"
-            ],
-            "authors": [
-                {
-                    "name": "Bernhard Schussek",
-                    "email": "bschussek@gmail.com"
-                }
-            ],
-            "description": "Assertions to validate method input/output with nice error messages.",
-            "keywords": [
-                "assert",
-                "check",
-                "validate"
-            ],
-            "time": "2016-11-23T20:04:58+00:00"
-        },
-        {
-            "name": "webmozart/path-util",
-            "version": "2.3.0",
-            "source": {
-                "type": "git",
-                "url": "https://github.com/webmozart/path-util.git",
-                "reference": "d939f7edc24c9a1bb9c0dee5cb05d8e859490725"
-            },
-            "dist": {
-                "type": "zip",
-                "url": "https://api.github.com/repos/webmozart/path-util/zipball/d939f7edc24c9a1bb9c0dee5cb05d8e859490725",
-                "reference": "d939f7edc24c9a1bb9c0dee5cb05d8e859490725",
-                "shasum": ""
-            },
-            "require": {
-                "php": ">=5.3.3",
-                "webmozart/assert": "~1.0"
-            },
-            "require-dev": {
-                "phpunit/phpunit": "^4.6",
-                "sebastian/version": "^1.0.1"
-            },
-            "type": "library",
-            "extra": {
-                "branch-alias": {
-                    "dev-master": "2.3-dev"
-                }
-            },
-            "autoload": {
-                "psr-4": {
-                    "Webmozart\\PathUtil\\": "src/"
-                }
-            },
-            "notification-url": "https://packagist.org/downloads/",
-            "license": [
-                "MIT"
-            ],
-            "authors": [
-                {
-                    "name": "Bernhard Schussek",
-                    "email": "bschussek@gmail.com"
-                }
-            ],
-            "description": "A robust cross-platform utility for normalizing, comparing and modifying file paths.",
-            "time": "2015-12-17T08:42:14+00:00"
         }
     ],
     "aliases": [],
diff --git a/src/PhpmdTaskLoader.php b/src/PhpmdTaskLoader.php
index 2900ec0..91573f0 100644
--- a/src/PhpmdTaskLoader.php
+++ b/src/PhpmdTaskLoader.php
@@ -2,6 +2,7 @@
 
 namespace Sweetchuck\Robo\PhpMessDetector;
 
+use League\Container\ContainerAwareInterface;
 use Robo\Collection\CollectionBuilder;
 
 trait PhpmdTaskLoader
@@ -13,6 +14,12 @@ protected function taskPhpmdVersion(array $options = []): CollectionBuilder
     {
         /** @var \Sweetchuck\Robo\PhpMessDetector\Task\PhpmdVersionTask $task */
         $task = $this->task(Task\PhpmdVersionTask::class);
+        if ($this instanceof ContainerAwareInterface) {
+            $container = $this->getContainer();
+            if ($container) {
+                $task->setContainer($this->getContainer());
+            }
+        }
 
         return $task->setOptions($options);
     }
@@ -24,6 +31,12 @@ protected function taskPhpmdLintFiles(array $options = []): CollectionBuilder
     {
         /** @var \Sweetchuck\Robo\PhpMessDetector\Task\PhpmdLintFilesTask $task */
         $task = $this->task(Task\PhpmdLintFilesTask::class);
+        if ($this instanceof ContainerAwareInterface) {
+            $container = $this->getContainer();
+            if ($container) {
+                $task->setContainer($this->getContainer());
+            }
+        }
 
         return $task->setOptions($options);
     }
diff --git a/src/Task/PhpmdCliTask.php b/src/Task/PhpmdCliTask.php
index a34284c..898e01a 100644
--- a/src/Task/PhpmdCliTask.php
+++ b/src/Task/PhpmdCliTask.php
@@ -2,17 +2,22 @@
 
 namespace Sweetchuck\Robo\PhpMessDetector\Task;
 
+use League\Container\ContainerAwareInterface;
+use League\Container\ContainerAwareTrait;
 use Robo\Common\OutputAwareTrait;
 use Robo\Contract\CommandInterface;
 use Robo\Contract\OutputAwareInterface;
 use Stringy\StaticStringy;
 use Sweetchuck\Robo\PhpMessDetector\Utils;
+use Symfony\Component\Console\Helper\ProcessHelper;
 use Symfony\Component\Process\Process;
 
 abstract class PhpmdCliTask extends PhpmdBaseTask implements
     CommandInterface,
+    ContainerAwareInterface,
     OutputAwareInterface
 {
+    use ContainerAwareTrait;
     use OutputAwareTrait;
 
     /**
@@ -20,11 +25,6 @@ abstract class PhpmdCliTask extends PhpmdBaseTask implements
      */
     protected $command = '';
 
-    /**
-     * @var string
-     */
-    protected $processClass = Process::class;
-
     /**
      * @var string
      */
@@ -202,11 +202,16 @@ protected function runHeader()
      */
     protected function runDoIt()
     {
-        /** @var \Symfony\Component\Process\Process $process */
-        $process = new $this->processClass($this->command);
-        $this->processExitCode = $process->run(function ($type, $data) {
-            $this->processRunCallback($type, $data);
-        });
+        $process = $this
+            ->getProcessHelper()
+            ->run(
+                $this->output(),
+                $this->command,
+                null,
+                $this->getProcessRunCallbackWrapper()
+            );
+
+        $this->processExitCode = $process->getExitCode();
         $this->processStdOutput = $process->getOutput();
         $this->processStdError = $process->getErrorOutput();
 
@@ -237,6 +242,16 @@ protected function getTaskResultMessage(): string
         return $this->processStdError;
     }
 
+    /**
+     * @return \Closure
+     */
+    protected function getProcessRunCallbackWrapper()
+    {
+        return function (string $type, string $data): void {
+            $this->processRunCallback($type, $data);
+        };
+    }
+
     protected function processRunCallback(string $type, string $data): void
     {
         switch ($type) {
@@ -265,4 +280,14 @@ protected function findPhpmdExecutable(): string
 
         return 'phpmd';
     }
+
+    protected function getProcessHelper(): ProcessHelper
+    {
+        // @todo Check that everything is available.
+        return  $this
+            ->getContainer()
+            ->get('application')
+            ->getHelperSet()
+            ->get('process');
+    }
 }
diff --git a/tests/_support/Helper/Dummy/DummyOutput.php b/tests/_support/Helper/Dummy/DummyOutput.php
new file mode 100644
index 0000000..250cac2
--- /dev/null
+++ b/tests/_support/Helper/Dummy/DummyOutput.php
@@ -0,0 +1,50 @@
+<?php
+
+namespace Sweetchuck\Robo\PhpMessDetector\Test\Helper\Dummy;
+
+use Codeception\Lib\Console\Output as ConsoleOutput;
+
+class DummyOutput extends ConsoleOutput
+{
+
+    /**
+     * @var int
+     */
+    protected static $instanceCounter = 0;
+
+    /**
+     * @var string
+     */
+    public $output = '';
+
+    /**
+     * @var int
+     */
+    public $instanceId = 0;
+
+    /**
+     * {@inheritdoc}
+     */
+    public function __construct($config)
+    {
+        parent::__construct($config);
+        $this->instanceId = static::$instanceCounter++;
+
+        if (empty($config['stdErr'])) {
+            $config['stdErr'] = true;
+            $this->setErrorOutput(new static($config));
+
+            return;
+        }
+
+        $this->setErrorOutput($this);
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    protected function doWrite($message, $newline)
+    {
+        $this->output .= $message . ($newline ? "\n" : '');
+    }
+}
diff --git a/tests/acceptance/Task/PhpmdLintFilesTaskCest.php b/tests/acceptance/Task/PhpmdLintFilesTaskCest.php
index 3e09008..827e287 100644
--- a/tests/acceptance/Task/PhpmdLintFilesTaskCest.php
+++ b/tests/acceptance/Task/PhpmdLintFilesTaskCest.php
@@ -34,6 +34,6 @@ public function runPhpmdLintFiles(AcceptanceTester $tester)
 
         $tester->assertEquals(0, $exitCode);
         $tester->assertEquals('', $stdOutput);
-        $tester->assertEquals($expectedStdError, $stdError);
+        $tester->assertContains($expectedStdError, $stdError);
     }
 }
diff --git a/tests/unit/Task/PhpmdLintFilesTaskTest.php b/tests/unit/Task/PhpmdLintFilesTaskTest.php
index f54257f..dc4e7db 100644
--- a/tests/unit/Task/PhpmdLintFilesTaskTest.php
+++ b/tests/unit/Task/PhpmdLintFilesTaskTest.php
@@ -3,11 +3,12 @@
 namespace Sweetchuck\Robo\PhpMessDetector\Tests\Unit\Task;
 
 use Codeception\Test\Unit;
-use Codeception\Util\Stub;
 use org\bovigo\vfs\vfsStream;
 use Robo\Robo;
-use Sweetchuck\Codeception\Module\RoboTaskRunner\DummyProcess;
 use Sweetchuck\Robo\PhpMessDetector\Task\PhpmdLintFilesTask;
+use Sweetchuck\Robo\PhpMessDetector\Test\Helper\Dummy\DummyOutput;
+use Symfony\Component\Console\Helper\ProcessHelper;
+use Symfony\Component\Process\Process;
 use Webmozart\PathUtil\Path;
 
 class PhpmdLintFilesTaskTest extends Unit
@@ -154,9 +155,7 @@ public function casesRunSuccess(): array
 
         return [
             'basic' => [
-                [
-                    'exitCode' => 0,
-                ],
+                [],
                 [
                     'workingDirectory' => $vfs->url(),
                     'reportFile' => __FUNCTION__ . '/basic/foo/phpmd.txt',
@@ -170,25 +169,46 @@ public function casesRunSuccess(): array
      */
     public function testRunSuccess(array $expected, array $options)
     {
+        $expected += [
+            'exitCode' => 0,
+            'stdOutput' => '',
+            'stdError' => '',
+        ];
+
         $container = Robo::createDefaultContainer();
         Robo::setContainer($container);
 
+        $process = $this->make(
+            Process::class,
+            [
+                'run' => $expected['exitCode'],
+                'getExitCode' => $expected['exitCode'],
+                'getOutput' => $expected['stdOutput'],
+                'getErrorOutput' => $expected['stdError'],
+            ]
+        );
+
+        $processHelper = $this->make(
+            ProcessHelper::class,
+            [
+                'run' => $process,
+            ]
+        );
+
         /** @var \Sweetchuck\Robo\PhpMessDetector\Task\PhpmdLintFilesTask $task */
-        $task = Stub::construct(
+        $task = $this->construct(
             PhpmdLintFilesTask::class,
             [],
             [
-                'processClass' => DummyProcess::class,
+                'getProcessHelper' => $processHelper,
             ]
         );
-        $task->setOptions($options);
 
-        $processIndex = count(DummyProcess::$instances);
-        DummyProcess::$prophecy[$processIndex] = [
-            'exitCode' => 0,
-            'stdOutput' => '',
-            'stdError' => '',
-        ];
+        $dummyOutputConfig = [];
+        $dummyOutput = new DummyOutput($dummyOutputConfig);
+
+        $task->setOutput($dummyOutput);
+        $task->setOptions($options);
 
         $result = $task->run();
 
diff --git a/tests/unit/Task/PhpmdVersionTaskTest.php b/tests/unit/Task/PhpmdVersionTaskTest.php
index 9acdc2d..64929a5 100644
--- a/tests/unit/Task/PhpmdVersionTaskTest.php
+++ b/tests/unit/Task/PhpmdVersionTaskTest.php
@@ -3,10 +3,11 @@
 namespace Sweetchuck\Robo\PhpMessDetector\Tests\Unit\Task;
 
 use Codeception\Test\Unit;
-use Codeception\Util\Stub;
 use Robo\Robo;
-use Sweetchuck\Codeception\Module\RoboTaskRunner\DummyProcess;
 use Sweetchuck\Robo\PhpMessDetector\Task\PhpmdVersionTask;
+use Sweetchuck\Robo\PhpMessDetector\Test\Helper\Dummy\DummyOutput;
+use Symfony\Component\Console\Helper\ProcessHelper;
+use Symfony\Component\Process\Process;
 
 class PhpmdVersionTaskTest extends Unit
 {
@@ -69,21 +70,46 @@ public function casesRunSuccess(): array
      */
     public function testRunSuccess(array $expected, array $options, array $std)
     {
+        $std += [
+            'exitCode' => 0,
+            'stdOutput' => '',
+            'stdError' => '',
+        ];
+
         $container = Robo::createDefaultContainer();
         Robo::setContainer($container);
 
+        $process = $this->make(
+            Process::class,
+            [
+                'run' => $std['exitCode'],
+                'getExitCode' => $std['exitCode'],
+                'getOutput' => $std['stdOutput'],
+                'getErrorOutput' => $std['stdError'],
+            ]
+        );
+
+        $processHelper = $this->make(
+            ProcessHelper::class,
+            [
+                'run' => $process,
+            ]
+        );
+
         /** @var \Sweetchuck\Robo\PhpMessDetector\Task\PhpmdVersionTask $task */
-        $task = Stub::construct(
+        $task = $this->construct(
             PhpmdVersionTask::class,
             [],
             [
-                'processClass' => DummyProcess::class,
+                'getProcessHelper' => $processHelper,
             ]
         );
-        $task->setOptions($options);
 
-        $processIndex = count(DummyProcess::$instances);
-        DummyProcess::$prophecy[$processIndex] = $std;
+        $dummyOutputConfig = [];
+        $dummyOutput = new DummyOutput($dummyOutputConfig);
+
+        $task->setOutput($dummyOutput);
+        $task->setOptions($options);
 
         $result = $task->run();