file schema fixes

- expand uri validator tests
- treat file as non-hierarchical

Author: alcohol

src/JsonSchema/Tool/Validator/UriValidator.php

@@ -21,7 +21,7 @@ public static function isValid(string $uri): bool
 
         // RFC 3986: Non-Hierarchical URIs (mailto, data, urn, news)
         $nonHierarchicalPattern = '/^
-                (mailto|data|urn|news|tel):          # Only allow known non-hierarchical schemes
+                (mailto|data|urn|news|tel|file):     # Only allow known non-hierarchical schemes
                 (.+)                                 # Must contain at least one character after scheme
         $/ix';
 

tests/Tool/Validator/UriValidatorTest.php

@@ -34,6 +34,9 @@ public function validUriDataProvider(): \Generator
         yield 'OASIS URN URI' => ['uri' => 'urn:oasis:names:specification:docbook:dtd:xml:4.1.2'];
         yield 'Custom URI with underscore' => ['uri' => 'custom://reg_name/path/file.json'];
         yield 'Custom URI with tilde' => ['uri' => 'custom://reg~name/path/file.json'];
+        yield 'File URI with implicit localhost (empty host)' => ['uri' => 'file:///path/to/file.txt'];
+        yield 'File URI with explicit host' => ['uri' => 'file://some-host/path/to/file.txt'];
+        yield 'File URI without any host' => ['uri' => 'file:/path/to/file.txt'];
     }
 
     public function invalidUriDataProvider(): \Generator
@@ -47,5 +50,7 @@ public function invalidUriDataProvider(): \Generator
         yield 'Invalid path characters with "^"' => ['uri' => 'http://example.com/^invalid'];
         yield 'Only mailto:' => ['uri' => 'mailto:'];
         yield 'Invalid email used in mailto:' => ['uri' => 'mailto:[email protected]'];
+        // Cannot be validated properly with regex only
+        // yield 'Invalid file uri (not enough slashes)' => ['uri' => 'file://path/to/file.txt'];
     }
 }