Fix another Uri debug assert - #123075
#123075Merged
MihaZupan merged 1 commit intoJan 12, 2026
dotnet:maindotnet/runtime:mainfrom
MihaZupan:uri-debugAssertEmptyOverlapMihaZupan/runtime:uri-debugAssertEmptyOverlapCopy head branch name to clipboard
Merged
Fix another Uri debug assert#123075MihaZupan merged 1 commit intodotnet:maindotnet/runtime:mainfrom MihaZupan:uri-debugAssertEmptyOverlapMihaZupan/runtime:uri-debugAssertEmptyOverlapCopy head branch name to clipboard
MihaZupan merged 1 commit into
dotnet:maindotnet/runtime:mainfrom
MihaZupan:uri-debugAssertEmptyOverlapMihaZupan/runtime:uri-debugAssertEmptyOverlapCopy head branch name to clipboard
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Pull request overview
This PR fixes a debug assertion failure that occurs when processing URIs with empty paths in the UriFormat.Unescaped code path. The issue arises because the Overlaps method can incorrectly report that an empty span doesn't overlap with a buffer, even though the operation is valid.
Changes:
- Modified debug assertion in
Uri.csto handle empty spans correctly - Added test assertions to verify
AbsolutePathandLocalPathproperties for an FTP URI with a compressed path
Reviewed changes
Copilot reviewed 2 out of 2 changed files in this pull request and generated no comments.
| File | Description |
|---|---|
| src/libraries/System.Private.Uri/src/System/Uri.cs | Fixed debug assertion to check if span is empty before calling Overlaps |
| src/libraries/System.Private.Uri/tests/FunctionalTests/UriRelativeResolutionTest.cs | Added test assertions to exercise the UriFormat.Unescaped code path with an empty path |
MihaZupan
enabled auto-merge (squash)
January 11, 2026 16:57
ManickaP
approved these changes
Jan 12, 2026
This was referenced Jan 13, 2026
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Overlapsspecial-cases empty spans as not overlapping even if the pointer appears in the middle.In this case, the
LocalPathtest exercises theUriFormat.Unescapedcode path.