Fix parsing relative paths as absolute ones

CHANGELOG.md

@@ -1,5 +1,11 @@
 # Changelog
 
+## [Unreleased]
+
+### Fixed
+
+- Some relative paths were parsed as absolute ones
+
 ## 5.2.0 - 2026-03-17
 
 ### Added

src/Path.php

@@ -35,6 +35,14 @@ final public static function of(string $value): self
             return new RelativePath($value);
         }
 
+        // For some paths the parsing removes chars leading to the parsing
+        // thinking the path is absolute when the specified one is relative.
+        // But since we don't use the parsed string, to avoid using encoded
+        // strings, then the relative path is returned as an absolute one.
+        if ($value[0] !== '/') {
+            return new RelativePath($value);
+        }
+
         return new AbsolutePath($value);
     }
 

tests/PathTest.php

@@ -8,11 +8,17 @@
     AbsolutePath,
     RelativePath,
 };
-use Innmind\BlackBox\PHPUnit\Framework\TestCase;
+use Fixtures\Innmind\Url\Path as FPath;
+use Innmind\BlackBox\{
+    PHPUnit\BlackBox,
+    PHPUnit\Framework\TestCase,
+};
 use PHPUnit\Framework\Attributes\DataProvider;
 
 class PathTest extends TestCase
 {
+    use BlackBox;
+
     public function testInterface()
     {
         $p = Path::of('/foo/bar/');
@@ -79,6 +85,19 @@ public function testNamedConstructorsReturnsAppropriateSubType()
         $this->assertInstanceOf(RelativePath::class, Path::of('../somewhere'));
     }
 
+    public function testAbsolutePathsAlwaysStartWithASlash(): BlackBox\Proof
+    {
+        return $this
+            ->forAll(FPath::any())
+            ->prove(function($path) {
+                if ($path->absolute()) {
+                    $this->assertStringStartsWith('/', $path->toString());
+                } else {
+                    $this->assertStringStartsNotWith('/', $path->toString());
+                }
+            });
+    }
+
     public static function resolutions(): array
     {
         return [