From 9dd925b349405aa7c1a95778ad50558dbf9e146a Mon Sep 17 00:00:00 2001
From: "google-labs-jules[bot]"
 <161369871+google-labs-jules[bot]@users.noreply.github.com>
Date: Tue, 24 Mar 2026 10:10:36 +0000
Subject: [PATCH] test: add comprehensive edge case tests for obfuscate_string

Adds unit tests for `obfuscate_string` in `src/utils/secrets.rs` covering:
- Empty strings
- Short ASCII and Unicode strings (boundary check <= 3 chars)
- Longer ASCII and Unicode strings (boundary check > 3 chars)
- Mixed ASCII/Unicode strings
- Whitespace-only strings

Verified that the implementation correctly handles multi-byte Unicode characters by using character count instead of byte length.

Co-authored-by: ffalcinelli <1167082+ffalcinelli@users.noreply.github.com>
---
 src/utils/secrets.rs | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/src/utils/secrets.rs b/src/utils/secrets.rs
index ae74b49..1a1581f 100644
--- a/src/utils/secrets.rs
+++ b/src/utils/secrets.rs
@@ -398,5 +398,14 @@ mod tests {
         assert_eq!(obfuscate_string("abc"), "***");
         assert_eq!(obfuscate_string("abcd"), "a***d");
         assert_eq!(obfuscate_string("secret"), "s***t");
+        assert_eq!(obfuscate_string("🦀"), "***");
+        assert_eq!(obfuscate_string("🦀🦀"), "***");
+        assert_eq!(obfuscate_string("🦀🦀🦀"), "***");
+        assert_eq!(obfuscate_string("🦀🦀🦀🦀"), "🦀***🦀");
+        assert_eq!(obfuscate_string("a🦀"), "***");
+        assert_eq!(obfuscate_string("a🦀b"), "***");
+        assert_eq!(obfuscate_string("a🦀b🦀"), "a***🦀");
+        assert_eq!(obfuscate_string("   "), "***");
+        assert_eq!(obfuscate_string("    "), " *** ");
     }
 }