Add a test for untyped argument dependencies

Author: e1himself

specs/Fixtures/MyUntypedArgumentService.php

@@ -0,0 +1,13 @@
+<?php
+
+namespace Technically\DependencyResolver\Specs\Fixtures;
+
+final class MyUntypedArgumentService
+{
+    public $input;
+
+    public function __construct($input)
+    {
+        $this->input = $input;
+    }
+}

specs/dependency-resolver.spec.php

@@ -11,6 +11,7 @@
 use Technically\DependencyResolver\Specs\Fixtures\MyNullableArgumentService;
 use Technically\DependencyResolver\Specs\Fixtures\MyOptionalArgumentService;
 use Technically\DependencyResolver\Specs\Fixtures\MyUnresolvableScalarArgumentService;
+use Technically\DependencyResolver\Specs\Fixtures\MyUntypedArgumentService;
 
 describe('DependencyResolver', function() {
     it('should instantiate', function () {
@@ -121,4 +122,21 @@
         assert($exception->getArgumentName() === 'name');
         assert($exception->getMessage() === 'Could not autowire argument `name` for `Technically\DependencyResolver\Specs\Fixtures\MyUnresolvableScalarArgumentService`.');
     });
+
+    it('should throw exception if untyped dependency cannot be autowired', function () {
+        $container = new ArrayContainer();
+        $resolver = new DependencyResolver($container);
+
+        try {
+            $resolver->resolve(MyUntypedArgumentService::class);
+        } catch (Exception $exception) {
+            // passthru
+        }
+
+        assert(isset($exception));
+        assert($exception instanceof CannotAutowireDependencyArgument);
+        assert($exception->getDependencyName() === MyUntypedArgumentService::class);
+        assert($exception->getArgumentName() === 'input');
+        assert($exception->getMessage() === 'Could not autowire argument `input` for `Technically\DependencyResolver\Specs\Fixtures\MyUntypedArgumentService`.');
+    });
 });

src/DependencyResolver.php

@@ -126,7 +126,7 @@ private function resolveArgument(string $className, Argument $argument, array $b
             return $argument->getDefaultValue();
         }
 
-        if ($argument->isNullable()) {
+        if ($argument->isNullable() && count($argument->getTypes()) > 0) {
             return null;
         }