Please write a test method for the function '{func_name}' given the following program under test and function description. Your answer should only contain one test input.

Program under test:
```java
{program}
```

Function description for '{func_name}':
```txt
{description}
```

You can directly use `assertEquals` function for assertion. Your testcase should be formatted as:
```java
public class SolutionTest {{
  @Test
  public void test_{func_name}() {{
    
  }}
}}
```
