Make var-dump and var-export usable for non-arrays (#109)

* Make var-dump and var-export usable for non-arrays

Also add simplifier for Drupal Entities

* Add class_exists() check.

* Update expectation

* Move simplifier to Drush

* Add comment back

* Remove use statement

* Sigh

src/Formatters/VarDumpFormatter.php

@@ -3,6 +3,7 @@
 namespace Consolidation\OutputFormatters\Formatters;
 
 use Consolidation\OutputFormatters\Options\FormatterOptions;
+use Consolidation\OutputFormatters\Validate\ValidationInterface;
 use Symfony\Component\Console\Output\OutputInterface;
 use Symfony\Component\Console\Output\StreamOutput;
 use Symfony\Component\VarDumper\Cloner\VarCloner;
@@ -13,7 +14,7 @@
  *
  * Run provided data through Symfony VarDumper component.
  */
-class VarDumpFormatter implements FormatterInterface
+class VarDumpFormatter implements FormatterInterface, ValidationInterface
 {
     /**
      * @inheritdoc
@@ -37,4 +38,14 @@ public function write(OutputInterface $output, $data, FormatterOptions $options)
             fclose($stream);
         }
     }
+
+    public function isValidDataType(\ReflectionClass $dataType)
+    {
+        return true;
+    }
+
+    public function validate($structuredData)
+    {
+        return $structuredData;
+    }
 }

src/Formatters/VarExportFormatter.php

@@ -3,14 +3,15 @@
 namespace Consolidation\OutputFormatters\Formatters;
 
 use Consolidation\OutputFormatters\Options\FormatterOptions;
+use Consolidation\OutputFormatters\Validate\ValidationInterface;
 use Symfony\Component\Console\Output\OutputInterface;
 
 /**
  * Var_export formatter
  *
  * Run provided date thruogh var_export.
  */
-class VarExportFormatter implements FormatterInterface
+class VarExportFormatter implements FormatterInterface, ValidationInterface
 {
     /**
      * @inheritdoc
@@ -19,4 +20,14 @@ public function write(OutputInterface $output, $data, FormatterOptions $options)
     {
         $output->writeln(var_export($data, true));
     }
+
+    public function isValidDataType(\ReflectionClass $dataType)
+    {
+        return true;
+    }
+
+    public function validate($structuredData)
+    {
+        return $structuredData;
+    }
 }

tests/ValidFormatsTest.php

@@ -69,7 +69,7 @@ function testValidFormats()
 
         // TODO: it woud be better if this returned an empty set instead of 'string'.
         $validFormats = $this->formatterManager->validFormats($notADataType);
-        $this->assertEquals('null,string', implode(',', $validFormats));
+        $this->assertEquals('null,string,var_dump,var_export', implode(',', $validFormats));
     }
 
     function testAutomaticOptions()