test: add unit test for ToStringUtils #16032
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Codecov Report✅ All modified and coverable lines are covered by tests. Additional details and impacted files@@ Coverage Diff @@
## 3.3 #16032 +/- ##
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+ Coverage 60.75% 60.77% +0.02%
- Complexity 11736 11738 +2
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Files 1949 1949
Lines 88801 88801
Branches 13391 13391
============================================
+ Hits 53952 53972 +20
+ Misses 29314 29289 -25
- Partials 5535 5540 +5
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This PR adds unit test coverage for the ToStringUtils utility class to ensure robust object-to-string conversion.
Key Coverage:
Null Safety: Verified that both printToString and toString return "null" without crashing.
Collection Handling: Tested formatted output for Arrays, Lists, and Maps, ensuring correct use of brackets, braces, and delimiters.
Recursion: Confirmed that nested collections (e.g., a List inside a Map) are correctly unwrapped and formatted.
Simple Types: Ensured primitives and basic types (String, Integer, Boolean) return their expected string values.
Verification: Successfully ran mvn clean test -Dtest=ToStringUtilsTest -pl dubbo-common with green results.