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Configuration

Role

Backend Engineer

Language

Python

Seniority

Mid-level

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Code Snippet

1class UserManager:

2 def __init__(self):

3 self.users = []

5 def add_user(self, email):

6 if self._find(email):⚠ Bug

7 raise ValueError("exists")

8 self.users.append(email)

Result

7/10

✓Caught: inconsistent API interface

✗Missed: duplicate username allowed

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