Fixes relative IRI resolution when there is no authority

CHANGELOG.md

@@ -4,7 +4,7 @@
 
 ### Changed
 
-- Fixes relativize on hierarchical paths without authority and starting slash Thomas Tanon 31 minutes ago
+- Fixes relativize on hierarchical paths without authority and starting slash.
 
 ## [0.2.5] - 2024-10-03
 

src/lib.rs

@@ -1451,7 +1451,8 @@ impl<'a, O: OutputBuffer, const UNCHECKED: bool> IriParser<'a, O, UNCHECKED> {
                     self.output_positions.authority_end = base.positions.authority_end;
                     self.output_positions.path_end = base.positions.path_end;
                     self.remove_last_segment();
-                    if self.output.len() > base.positions.scheme_end {
+                    if self.output.len() > base.positions.scheme_end || base.path().starts_with('/')
+                    {
                         // We have some path or authority, we keep a base '/'
                         self.output.push('/');
                     }

tests/lib.rs

@@ -688,6 +688,8 @@ fn test_relativize_iri() {
         ("urn:is/bn:foo", "urn:", "is/bn:foo"),
         ("urn:.", "urn:", "."),
         ("t:e/e/p", "t:e/s", "t:e/e/p"),
+        ("htt:/foo/gp", "htt:/foo/", "gp"),
+        ("htt:/gp", "htt:/", "gp"),
     ];
 
     for (original, base, output) in examples {