What are performance testing decorators?

What are performance testing decorators?

Performance testing decorators are design patterns used to measure and enhance the performance of functions in software applications.

How do I implement a performance testing decorator in Python?

You can implement a performance testing decorator in Python by defining a function that wraps another function and measures its execution time.

Can you show me a code example?

Sure! Here's a simple example:

import time

def performance_decorator(func):
    def wrapper(*args, **kwargs):
        start_time = time.time()
        result = func(*args, **kwargs)
        end_time = time.time()
        print(f"{func.__name__} executed in {end_time - start_time} seconds")
        return result
    return wrapper

@performance_decorator
def my_function():
    time.sleep(1)
    print("Function executed")

my_function()

What are some common use cases for these decorators?

Common use cases include monitoring API response times, optimizing database queries, and profiling resource-intensive functions.