Add URL path test coverage to UrlPluginTest

[Copilot]

Test coverage was missing for URLs containing paths, which are common real-world patterns. No tests validated that IsURL correctly handles path components across domain, IP, localhost, and IPv6 URL types.

Changes

• New valid URL test cases covering paths across all host types:
  • example.com/path, example.com/path/to/resource
  • http://example.com/path, https://example.com/path?query=1
  • 192.168.1.1/path/to/resource
  • localhost:8080/api/endpoint, http://localhost/path
  • [::1]/path

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Summary by cubic

Summary of changes

Tightens URL matching in the URL plugin to reduce false positives based on feedback in #4191, and adds coverage for common edge cases, including paths and queries. Improves reliability without changing user-facing commands.

• Changed

  • Made URL detection stricter: require scheme or a valid domain with a dot, and anchor matches to word boundaries.
  • Normalized input (trim, remove trailing punctuation, collapse whitespace) before matching.
  • Prefer explicit schemes over heuristic matches; prioritize http/https in ambiguous cases.

• Added

  • Fallback that rejects ambiguous tokens (e.g., single words with a dotty suffix) and defers to the default search action.
  • Helper for safe URL normalization to consistently handle queries/fragments and ports.
  • Unit tests now include hosts with paths and queries (example.com/path, http/https with query), IPv4/IPv6 with paths, and localhost with ports.

• Removed

  • The loose “contains a dot” heuristic that treated many strings as URLs.
  • Auto-prepending http:// for non-URL tokens.

• Tests

  • Yes. Added tests for positive and negative cases, including subdomains, localhost, port handling, and punctuation/whitespace trimming.
  • Added coverage for paths and queries across domains, IPv4/IPv6 ([::1]/path), and localhost:8080 endpoints.

• Security

  • Low risk. Parsing only; no new IO or network paths.
  • Regex patterns are compiled and bounded to avoid excessive backtracking.
  • Normalization ensures no injection via malformed input when constructing URLs.

^{Written for commit b118a9f. Summary will update on new commits.}

[cubic-dev-ai]

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