From 289721d9af264b815ce925a2dcaee8bc90c976e4 Mon Sep 17 00:00:00 2001
From: Yasser Bal <yasserbal@icloud.com>
Date: Wed, 27 May 2026 21:30:04 +0200
Subject: [PATCH] FlatteningLoader| Throw UnloadableWsdlException when loader
 returns empty content

---
 src/Exception/UnloadableWsdlException.php  |  5 +++++
 src/Loader/FlatteningLoader.php            | 13 +++++++------
 tests/Unit/Loader/FlatteningLoaderTest.php | 13 +++++++++++++
 3 files changed, 25 insertions(+), 6 deletions(-)

diff --git a/src/Exception/UnloadableWsdlException.php b/src/Exception/UnloadableWsdlException.php
index c905520..0aa6dc9 100644
--- a/src/Exception/UnloadableWsdlException.php
+++ b/src/Exception/UnloadableWsdlException.php
@@ -23,4 +23,9 @@ public static function fromException(Exception $e): self
     {
         return new self($e->getMessage(), (int)$e->getCode(), $e);
     }
+
+    public static function noContentAt(string $location): self
+    {
+        return new self('WSDL at location "'.$location.'" returned no content.');
+    }
 }
diff --git a/src/Loader/FlatteningLoader.php b/src/Loader/FlatteningLoader.php
index dd3f9df..ccc2090 100644
--- a/src/Loader/FlatteningLoader.php
+++ b/src/Loader/FlatteningLoader.php
@@ -1,15 +1,14 @@
 <?php
+
 declare(strict_types=1);
 
 namespace Soap\Wsdl\Loader;
 
-use Psl\Type\Exception\AssertException;
 use Soap\Wsdl\Exception\UnloadableWsdlException;
 use Soap\Wsdl\Loader\Context\FlatteningContext;
 use Soap\Wsdl\Xml\Flattener;
 use VeeWee\Xml\Dom\Document;
 use VeeWee\Xml\Exception\RuntimeException;
-use function Psl\Type\non_empty_string;
 
 final class FlatteningLoader implements WsdlLoader
 {
@@ -21,14 +20,16 @@ public function __construct(
     /**
      * @throws RuntimeException
      * @throws UnloadableWsdlException
-     * @throws AssertException
      */
     public function __invoke(string $location): string
     {
         $location = self::normalizeLocation($location);
-        $currentDoc = Document::fromXmlString(
-            non_empty_string()->assert(($this->loader)($location))
-        );
+        $content = ($this->loader)($location);
+        if ($content === '') {
+            throw UnloadableWsdlException::noContentAt($location);
+        }
+
+        $currentDoc = Document::fromXmlString($content);
         $context = FlatteningContext::forWsdl($location, $currentDoc, $this->loader);
 
         return (new Flattener())($location, $currentDoc, $context);
diff --git a/tests/Unit/Loader/FlatteningLoaderTest.php b/tests/Unit/Loader/FlatteningLoaderTest.php
index 2e64470..1638039 100644
--- a/tests/Unit/Loader/FlatteningLoaderTest.php
+++ b/tests/Unit/Loader/FlatteningLoaderTest.php
@@ -22,6 +22,19 @@ protected function setUp(): void
         $this->loader = new FlatteningLoader(new StreamWrapperLoader());
     }
 
+    public function test_it_throws_when_content_is_empty(): void
+    {
+        $emptyLoader = new class implements WsdlLoader {
+            public function __invoke(string $location): string
+            {
+                return '';
+            }
+        };
+        $this->expectException(UnloadableWsdlException::class);
+
+        (new FlatteningLoader($emptyLoader))('http://example.com/service.wsdl');
+    }
+
     #[DataProvider('provideTestCases')]
     public function test_it_can_load_flattened_imports(string $wsdl, Document $expected): void
     {