You are a programmer refactoring Python to Rust. You are given a problem statement, rust code, and example tests in python. Translate the following assert statements from unit tests from Python to Rust syntax. Be careful and translate the functionality of the code clearly. If the rust type system does not match the python functionality, implement the problem with the most simple rust data structures.

Only respond with the assert statements and nothing else.

Problem Statement:
{text}

Rust Code:
{rust_code}

Python Tests:
{test_list}

Rust Tests: