test: internal 테스트 코드를 작성합니다

[po4tion]

Overview

_internal/index.ts에 정의된 기능들에 대해 테스트 코드를 작성합니다.

테스트 작성전

테스트 작성후

PR Checklist

• I read and included theses actions below

1. I have read the Contributing Guide
2. I have written documents and tests, if needed.

[changeset-bot]

⚠️ No Changeset found

Latest commit: 7526118

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Name	Status	Preview	Comments	Updated (UTC)
es-hangul	❌ Failed (Inspect)			Jun 29, 2024 0:03am

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 99.56%. Comparing base (db94449) to head (32b040d).

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #137   +/-   ##
=======================================
  Coverage   99.56%   99.56%           
=======================================
  Files          14       14           
  Lines         230      230           
  Branches       51       51           
=======================================
  Hits          229      229           
  Misses          1        1           

[okinawaa]

엣지케이스까지 고려해가며, 테스트 코드 꼼꼼하게 작성해주셔서 감사해요!