diff --git a/src/commands/Command.php b/src/commands/Command.php
index 594d948..b1b5b18 100644
--- a/src/commands/Command.php
+++ b/src/commands/Command.php
@@ -7,7 +7,10 @@
 
 namespace Seacms\Command;
 
+use Composer\Console\Application;
 use Composer\Command\BaseCommand;
+use Symfony\Component\Console\Input\ArrayInput;
+use Symfony\Component\Console\Input\InputArgument;
 use Symfony\Component\Console\Input\InputInterface;
 use Symfony\Component\Console\Input\InputOption;
 use Symfony\Component\Console\Output\OutputInterface;
@@ -30,11 +33,21 @@ use Symfony\Component\Console\Output\OutputInterface;
 
             // the full command description shown when running the command with
             // the "--help" option
-            ->setHelp("Test seacms via command line.\n".
-                "(Only if phpunit available)\n")
+            ->setHelp(
+                <<<STR
+                Test seacms via command line.
+                (Only if phpunit available)
+
+                Examples :
+                  composer seacms-test phpunit -- -h         : display phpunit help (do not forget --)
+                  composer seacms-test phpunit -- --pversion : display phpunit version
+                  composer seacms-test help                  : show this help
+                  composer seacms-test                       : show this help
+                  composer seacms-test test                  : run tests
+                STR)
             
-            ->addOption('toto', '', InputOption::VALUE_NONE, 'Display toto text')
-            ->addOption('text', 't', InputOption::VALUE_REQUIRED, 'Display the text')
+            ->addArgument('type', InputArgument::OPTIONAL, 'phpunit|test')
+            ->addArgument('args', InputArgument::IS_ARRAY | InputArgument::OPTIONAL, 'phpunit command line params|other test params')
         ;
     }
 
@@ -49,14 +62,77 @@ use Symfony\Component\Console\Output\OutputInterface;
     {
         $output->writeln('<info>Testing seacms</info>');
 
-        $totoOption = $input->getOption('toto');
-        $textOption = $input->getOption('text');
+        $args = $input->getArgument('args');
 
-        if ($totoOption){
-            $output->writeln('toto');
+        switch ($input->getArgument('type')) {
+            case 'test':
+                $empty = true;
+                foreach([
+                    'vendor/seacms/app/tests/',
+                    'vendor/seacms/composer-plugin/tests/',
+                    'vendor/picocms/plugins/PicoContentEditor/tests',
+                    'vendor/picocms/plugins/SeacmsApi/tests',
+                    'vendor/picocms/plugins/SeacmsAuth/tests',
+                ] as $path){
+                    if (is_dir($path)){
+                        $empty = false;
+                        $args = [
+                            $path
+                        ];
+                        $code = $this->runPhpUnitIfAvailable($input->getArgument('args'),$output);
+                        if ($code != Command::SUCCESS){
+                            return $code;
+                        }
+                    }
+                }
+                if ($empty){
+                    $output->writeln('<info>Nothing to test</info>');
+                }
+                return Command::SUCCESS;
+            case 'phpunit':
+                return $this->runPhpUnitIfAvailable($input->getArgument('args'),$output);
+            
+            default:
+                // default display help
+                $inputInternal = new ArrayInput([
+                    'command' => 'help',
+                    'command_name' => 'seacms-test'
+                ]);
+                (new Application())->run($inputInternal,$output);
+                return Command::SUCCESS;
         }
-        if ($textOption){
-            $output->writeln($textOption);
+    }
+
+    /**
+     * test if phpunit available
+     * @return bool
+     */
+    protected function canRunPhpunit(): bool
+    {
+        return is_file('vendor/bin/phpunit');
+    }
+
+    /**
+     * run php unit if available otherwise output a message
+     * @param array $args
+     * @param OutputInterface $output
+     * @return int $code
+     */
+    protected function runPhpUnitIfAvailable(array $args, OutputInterface $output): int
+    {
+        if ($this->canRunPhpunit()){
+            $def = [
+                'command' => 'exec',
+                'binary' => 'phpunit'
+            ];
+            if (!empty($args)){
+                $def['args'] = array_map(function($v){
+                    return ($v == '--pversion') ? '--version' : $v; // hack to prevent bad caught
+                },$args);
+            }
+            (new Application())->run(new ArrayInput($def),$output);
+        } else {
+            $output->writeln('<info>phpunit not installed !</info>');
         }
         return Command::SUCCESS;
     }