[Console] Better required argument check in InputArgument

Author: jnoordsij

Input/InputArgument.php

@@ -92,7 +92,7 @@ public function isArray()
      */
     public function setDefault($default = null)
     {
-        if (self::REQUIRED === $this->mode && null !== $default) {
+        if ($this->isRequired() && null !== $default) {
             throw new LogicException('Cannot set a default value except for InputArgument::OPTIONAL mode.');
         }
 

Tests/Input/InputArgumentTest.php

@@ -88,6 +88,14 @@ public function testSetDefaultWithRequiredArgument()
         $argument->setDefault('default');
     }
 
+    public function testSetDefaultWithRequiredArrayArgument()
+    {
+        $this->expectException(\LogicException::class);
+        $this->expectExceptionMessage('Cannot set a default value except for InputArgument::OPTIONAL mode.');
+        $argument = new InputArgument('foo', InputArgument::REQUIRED | InputArgument::IS_ARRAY);
+        $argument->setDefault([]);
+    }
+
     public function testSetDefaultWithArrayArgument()
     {
         $this->expectException(\LogicException::class);