diff --git a/Makefile b/Makefile
index dc7194e..4581296 100644
--- a/Makefile
+++ b/Makefile
@@ -1,18 +1,24 @@
-analyze: analyze-phpmd analyze-phpstan analyze-psalm analyze-phpcs
- 
+analyze: analyze-yaml analyze-phpmd analyze-phpstan analyze-psalm analyze-phpcs
+
+analyze-yaml:
+	vendor/bin/yaml-lint config.yml
 analyze-phpmd:
-	./vendor/bin/phpmd src text  cleancode,codesize,controversial,design,naming,unusedcode
+	vendor/bin/phpmd src text  cleancode,codesize,controversial,design,naming,unusedcode
 analyze-phpstan:
-	./vendor/bin/phpstan analyze --level=7  --error-format=raw src/ backup 
+	vendor/bin/phpstan analyze --level=7  --error-format=raw src/ backup 
 analyze-psalm:
-	./vendor/bin/psalm
+	vendor/bin/psalm
 analyze-phpcs:
-	./vendor/bin/phpcs src backup --report=emacs  --standard=PSR12
+	vendor/bin/phpcs src backup --report=emacs  --standard=PSR12
 
 install:
 	php composer.phar install --no-dev
 install-dev:
 	php composer.phar install
+	sudo apt update
+	sudo apt install rclone
 test:
-	./vendor/bin/phpunit tests --testdox --coverage-filter src --coverage-html output/coverage 
+	vendor/bin/phpunit tests
+test-coverage:
+	vendor/bin/phpunit tests --testdox --coverage-filter src --coverage-html output/coverage --coverage-text
 	
\ No newline at end of file
diff --git a/composer.lock b/composer.lock
index 50bb8cb..38b9af3 100644
--- a/composer.lock
+++ b/composer.lock
@@ -2922,16 +2922,16 @@
         },
         {
             "name": "phpstan/phpstan",
-            "version": "1.10.18",
+            "version": "1.10.19",
             "source": {
                 "type": "git",
                 "url": "https://github.com/phpstan/phpstan.git",
-                "reference": "52b6416c579663eebdd2f1d97df21971daf3b43f"
+                "reference": "af5a296ff02610c1bfb4ddfac9fd4a08657b9046"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/phpstan/phpstan/zipball/52b6416c579663eebdd2f1d97df21971daf3b43f",
-                "reference": "52b6416c579663eebdd2f1d97df21971daf3b43f",
+                "url": "https://api.github.com/repos/phpstan/phpstan/zipball/af5a296ff02610c1bfb4ddfac9fd4a08657b9046",
+                "reference": "af5a296ff02610c1bfb4ddfac9fd4a08657b9046",
                 "shasum": ""
             },
             "require": {
@@ -2980,7 +2980,7 @@
                     "type": "tidelift"
                 }
             ],
-            "time": "2023-06-07T22:00:43+00:00"
+            "time": "2023-06-14T15:26:58+00:00"
         },
         {
             "name": "phpunit/php-code-coverage",
diff --git a/src/CommandBackup.php b/src/CommandBackup.php
index 6ca06dc..bd23081 100644
--- a/src/CommandBackup.php
+++ b/src/CommandBackup.php
@@ -62,17 +62,13 @@ class CommandBackup extends Command
                 $template['rclone_version'] = $rclone->getVersion();
                 $template['destination_size_before'] = $rclone->getSize($conf['destination']);
 
-                $template['stdout'] = $rclone->copy(
-                    $conf['source'],
-                    $conf['destination'],
-                    $app->getConfig()['rclone']['options']
-                );
+                $rclone->copy($conf['source'], $conf['destination'], $app->getConfig()['rclone']['options']);
 
                 $template['destination_size_after'] = $rclone->getSize($conf['destination']);
                 $template['end'] = new DateTime();
 
                 $message = $twig->render('notify', $template);
-            } catch (\Throwable $e) {
+            } catch (\Exception $e) {
                 $message = $e->getMessage();
             }
 
diff --git a/src/Rclone/Rclone.php b/src/Rclone/Rclone.php
index d100bed..704e664 100644
--- a/src/Rclone/Rclone.php
+++ b/src/Rclone/Rclone.php
@@ -43,13 +43,13 @@ class Rclone
         $this->rclonePath = $rclonePath;
         $this->setLogger(new NullLogger());
 
-        try {
-            $version = $this->exec('--version');
-            $this->version = explode("\n", $version)[0];
-        } catch (ProcessFailedException $e) {
+        $process = $this->exec('--version');
+        if (!$process->isSuccessful()) {
             throw new Exception("Check installation of rclone");
         }
 
+        $this->version = explode("\n", $process->getOutput())[0];
+
         if (!\str_contains($this->version, 'rclone')) {
             throw new Exception("Rclone not recognized");
         }
@@ -74,8 +74,12 @@ class Rclone
      */
     public function getSize(string $path): int
     {
-        $output = $this->exec('size', ['--json', $path]);
-        return (int)json_decode($output)->bytes;
+        $process = $this->exec('size', ['--json', $path]);
+
+        if (!$process->isSuccessful()) {
+            throw new Exception($process->getErrorOutput());
+        }
+        return (int)json_decode($process->getOutput())->bytes;
     }
 
     /**
@@ -84,10 +88,8 @@ class Rclone
      * @param $src                         Source mount and path
      * @param $dest                        Destination mount and path
      * @param string[] $additionalOptions  Additional options
-     *
-     * @return string Stdout from command
      */
-    public function copy(string $src, string $dest, array $additionalOptions = array()): string
+    public function copy(string $src, string $dest, array $additionalOptions = array()): void
     {
         $options = array();
 
@@ -95,16 +97,14 @@ class Rclone
         $options[] = $dest;
 
         foreach ($additionalOptions as $key => $value) {
-            if (strlen($key) == 1) {
-                $options[] = '-' . $key;
-                $options[] = $value;
-            } elseif (strlen($key) > 2) {
-                $options[] = '--' . $key;
-                $options[] = $value;
-            }
+            $options[] = '--' . $key;
+            $options[] = $value;
         }
 
-        return $this->exec('copy', $options);
+        $process = $this->exec('copy', $options);
+        if (!$process->isSuccessful()) {
+            throw new Exception($process->getErrorOutput());
+        }
     }
 
     /**
@@ -113,9 +113,9 @@ class Rclone
      * @param string        $command Top level Rclone command
      * @param array<String> $options Array of additional options
      *
-     * @return string stdout data.
+     * @return Process Instance.
      */
-    protected function exec(string $command, array $options = array()): string
+    protected function exec(string $command, array $options = array()): Process
     {
         $process = new Process(
             array_merge(
@@ -137,11 +137,10 @@ class Rclone
             if ($this->logger instanceof LoggerInterface) {
                 $this->logger->error("Failed execution");
             }
-            throw new ProcessFailedException($process);
         }
         if ($this->logger instanceof LoggerInterface) {
             $this->logger->info("Return code", [$process->getExitCode()]);
         }
-        return $process->getOutput();
+        return $process;
     }
 }
diff --git a/tests/CommandBackupTest.php b/tests/CommandBackupTest.php
new file mode 100644
index 0000000..b91935b
--- /dev/null
+++ b/tests/CommandBackupTest.php
@@ -0,0 +1,29 @@
+<?php 
+namespace App\Tests;
+
+use PHPUnit\Framework\TestCase;
+use Symfony\Component\Console\Application;
+use Symfony\Component\Console\Tester\CommandTester;
+use App\CommandBackup;
+
+class CommandBackupTest extends \PHPUnit\Framework\TestCase
+{
+    public function testExecute()
+    {
+
+        $applicationd = new Application('backup', "1.1.1");
+
+        $applicationd->add(new CommandBackup());
+
+
+        $command = $applicationd->find('backup');
+        $commandTester = new CommandTester($command);
+        $commandTester->execute([]);
+
+        $commandTester->assertCommandIsSuccessful();
+
+        // the output of the command in the console
+        $output = $commandTester->getDisplay();
+        $this->assertStringContainsString('backup', $output);
+    }
+}
\ No newline at end of file
diff --git a/tests/Rclone/RcloneTest.php b/tests/Rclone/RcloneTest.php
index 89b44ef..e895065 100644
--- a/tests/Rclone/RcloneTest.php
+++ b/tests/Rclone/RcloneTest.php
@@ -1,23 +1,65 @@
 <?php declare(strict_types=1);
+
 use PHPUnit\Framework\TestCase;
 
 final class RcloneTest extends TestCase
 {
+    protected function setUp(): void
+    {
+        shell_exec('rclone test makefiles temp/source 2>&1');
+    }
+
+    protected function tearDown(): void
+    {
+        exec('rclone purge temp 2>&1', $output);
+    }
+
+
     public function testRclonePath(): void
     {
         $this->expectException(\Exception::class);
         $rclone = new \App\Rclone\Rclone('invalid');
+        $this->assertString('', $rclone->getVersion());
     }
 
     public function testRcloneInvalidVersion(): void
     {
         $this->expectException(\Exception::class);
         $rclone = new \App\Rclone\Rclone('uname');
+        $this->assertString('', $rclone->getVersion());
     }
 
     public function testRcloneValidVersion(): void
     {
-        $rclone = new \App\Rclone\Rclone('./tests/mock-rclone');
+        $rclone = new \App\Rclone\Rclone();
         $this->assertStringContainsString('rclone', $rclone->getVersion());
     }
+
+    public function testRcloneSize(): void
+    {
+        $rclone = new \App\Rclone\Rclone();
+        $size = $rclone->getSize('temp/source');
+        $this->assertGreaterThan(10000, $size);
+
+        $this->expectException(\Exception::class);
+        $this->expectExceptionMessage("ERROR");
+        $size = $rclone->getSize('temp/bogus-source');
+        $this->assertEquals(0, $size);
+    }
+
+    public function testRcloneCopy(): void
+    {
+        $rclone = new \App\Rclone\Rclone();
+        $result = $rclone->copy('temp/source','temp/destination');
+        $this->assertDirectoryExists('temp/destination');
+
+        $rclone = new \App\Rclone\Rclone();
+        $result = $rclone->copy('temp/source','temp/destination',['bwlimit'=>'6M']);
+        $this->assertDirectoryExists('temp/destination');
+        
+        $this->expectException(\Exception::class);
+        $this->expectExceptionMessage("ERROR");
+        $result = $rclone->copy('temp/bogus-source','temp/bogus-destination');
+        $this->assertDirectoryDoesNotExist('temp/bogus-destination');
+    }
 }
\ No newline at end of file
diff --git a/tests/mock-rclone b/tests/mock-rclone
deleted file mode 100755
index 645f1a3..0000000
--- a/tests/mock-rclone
+++ /dev/null
@@ -1,2 +0,0 @@
-#!/bin/bash
-echo rclone v1.53.3-DEV