Throw exceptions

src/Command/CaptureScreenshotsCommand.php

@@ -83,6 +83,14 @@ protected function execute(InputInterface $input, OutputInterface $output)
             return;
         }
 
+        if (!$this->workflowRegistry instanceof Registry) {
+            throw new Exception('Can not capture screenshots: No workflows were defined');
+        }
+
+        if (!$this->filesystem instanceof Filesystem) {
+            throw new Exception("Can not capture screenshots: No filesystems with name 'mbt' were defined");
+        }
+
         $this->setAnonymousToken();
 
         $path = Path::unserialize($bug->getPath());

src/Command/RemoveScreenshotsCommand.php

@@ -64,6 +64,10 @@ protected function execute(InputInterface $input, OutputInterface $output)
         $bugId = $input->getArgument('bug-id');
         $model = $input->getArgument('model');
 
+        if (!$this->filesystem instanceof Filesystem) {
+            throw new Exception("Can not remove screenshots: No filesystems with name 'mbt' were defined");
+        }
+
         $subject = $this->subjectManager->createSubject($model);
         $subject->setFilesystem($this->filesystem);
         $subject->removeScreenshots($bugId);

src/Command/ReportBugCommand.php

@@ -77,6 +77,10 @@ protected function execute(InputInterface $input, OutputInterface $output)
             throw new Exception("Can not report bug: No monolog's handlers with channel 'mbt' were defined");
         }
 
+        if (!$this->filesystem instanceof Filesystem) {
+            throw new Exception("Can not report bug: No filesystems with name 'mbt' were defined");
+        }
+
         $bugId = $input->getArgument('bug-id');
 
         $callback = function () use ($bugId) {

src/Maker/MakeSubject.php

@@ -3,6 +3,7 @@
 namespace Tienvx\Bundle\MbtBundle\Maker;
 
 use Doctrine\Common\Annotations\Annotation;
+use Exception;
 use Symfony\Bundle\MakerBundle\ConsoleStyle;
 use Symfony\Bundle\MakerBundle\DependencyBuilder;
 use Symfony\Bundle\MakerBundle\Generator;
@@ -62,6 +63,10 @@ public function configureCommand(Command $command, InputConfiguration $inputConf
      */
     public function generate(InputInterface $input, ConsoleStyle $io, Generator $generator)
     {
+        if (!$this->workflowRegistry instanceof Registry) {
+            throw new Exception('Can not make subject: No workflows were defined');
+        }
+
         $model = $input->getArgument('model');
         $workflow = WorkflowHelper::get($this->workflowRegistry, $model);
 

src/PathReducer/AbstractPathReducer.php

@@ -101,6 +101,10 @@ public function handle(int $bugId, int $length, int $from, int $to)
             return;
         }
 
+        if (!$this->workflowRegistry instanceof Registry) {
+            throw new Exception('Can not handle reduce path message: No workflows were defined');
+        }
+
         $model = $bug->getTask()->getModel();
         $workflow = WorkflowHelper::get($this->workflowRegistry, $model);