update tests for arument

Author: jaapio

src/phpDocumentor/Reflection/Php/Factory/Argument.php

@@ -78,7 +78,7 @@ public function create($object, StrategyContainer $strategies, Context $context
 
         $default = null;
         if ($object->default !== null) {
-            $default = $this->valueConverter->prettyPrintExpr($object->getValue());
+            $default = $this->valueConverter->prettyPrintExpr($object->default);
         }
 
         return new ArgumentDescriptor($object->name, $default, $object->byRef, $object->variadic);

tests/unit/phpDocumentor/Reflection/Php/Factory/ArgumentTest.php

@@ -13,9 +13,11 @@
 
 use phpDocumentor\Reflection\Php\Argument as ArgumentDescriptor;
 use phpDocumentor\Reflection\Php\ProjectFactoryStrategies;
+use phpDocumentor\Reflection\PrettyPrinter;
 use phpDocumentor\Reflection\Types\Context;
 use PhpParser\Node\Param;
 use Mockery as m;
+use PhpParser\Node\Scalar\String_;
 
 /**
  * Class ArgumentTest
@@ -25,7 +27,7 @@ class ArgumentTest extends TestCase
 {
     protected function setUp()
     {
-        $this->fixture = new Argument();
+        $this->fixture = new Argument(new PrettyPrinter());
     }
 
     /**
@@ -46,7 +48,7 @@ public function testCreate()
 
         $argMock = m::mock(Param::class);
         $argMock->name = 'myArgument';
-        $argMock->default = 'MyDefault';
+        $argMock->default = new String_('MyDefault');
         $argMock->byRef = true;
         $argMock->variadic = true;