add location set hash tests

Author: mookums

src/browser/html/location.zig

@@ -52,7 +52,7 @@ pub const Location = struct {
             current_url;
 
         const normalized_hash = std.mem.trimStart(u8, hash, "#");
-        const new_url = try std.fmt.allocPrint(page.arena, "{s}#{s}", .{ base_without_hash, normalized_hash });
+        const new_url = try std.fmt.allocPrint(page.session.transfer_arena, "{s}#{s}", .{ base_without_hash, normalized_hash });
 
         return page.navigateFromWebAPI(new_url, .{ .reason = .script }, .replace);
     }

src/tests/html/location.html

@@ -13,3 +13,13 @@
   testing.expectEqual("9582", location.port);
   testing.expectEqual("", location.search);
 </script>
+
+<script id=location_hash>
+  location.hash = "#abcdef";
+  testing.expectEqual("#abcdef", location.hash);
+  testing.expectEqual('http://localhost:9582/src/tests/html/location.html#abcdef', location.href);
+
+  location.hash = "xyzxyz";
+  testing.expectEqual("#xyzxyz", location.hash);
+  testing.expectEqual('http://localhost:9582/src/tests/html/location.html#xyzxyz', location.href);
+</script>