Using the {test_framework} testing framework, write a test suite for the following **ASYNC** JavaScript function.

**CRITICAL: This function is ASYNCHRONOUS**
- All test functions MUST be async: `test('...', async () => {{ ... }})`
- All calls to {function_name} MUST be awaited: `await {function_name}(...)`
- Test both successful and error cases for async operations

**Function to Test:**
```javascript
{function_code}
```

**CRITICAL: Use this exact import statement (do not modify the path):**
```javascript
const {{ {function_name} }} = require('{module_path}');
```

**Template to Follow:**
```javascript
// imports
const {{ {function_name} }} = require('{module_path}');

// unit tests
describe('{function_name}', () => {{
    // Basic Test Cases
    describe('Basic async functionality', () => {{
        test('should resolve with correct value', async () => {{
            const result = await {function_name}(/* args */);
            expect(result).toBe(/* expected */);
        }});
    }});

    // Edge Test Cases
    describe('Async edge cases', () => {{
        test('should handle async error case', async () => {{
            await expect({function_name}(/* invalid args */)).rejects.toThrow();
        }});
    }});

    // Large Scale Test Cases
    describe('Concurrent execution tests', () => {{
        test('should handle multiple concurrent calls', async () => {{
            const results = await Promise.all([
                {function_name}(/* args1 */),
                {function_name}(/* args2 */),
            ]);
            // assertions
        }});
    }});
}});
```

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