How do I use pytest-benchmark for performance testing?

How do I use pytest-benchmark for performance testing?

You can use pytest-benchmark by installing it via pip and then using the @pytest.mark.benchmark decorator on your test functions.

Can you show me a simple example of a benchmark test?

Sure! Here's a basic example:

import pytest

@pytest.mark.benchmark
def test_my_function(benchmark):
    result = benchmark(my_function, *args)
    assert result == expected_output

What kind of metrics does pytest-benchmark provide?

It provides metrics like execution time, memory usage, and statistical analysis of the performance.

How can I visualize the benchmark results?

You can visualize results using the --benchmark-save option to save results and then use the --benchmark-compare option to compare different runs.