python

pytest

Posted by neverset on November 22, 2020

usage features

Filter warnings

create a file called pytest.ini with following contents

[pytest]
addopts = -p no:warning

Print the intermediate Output

include -s at the end of pytest command

repeat pytest

using decorator @pytest.mark.repeat(n)

#install
pip install pytest-repeat

Benchmark your Code

test speed of the function code

!pip install pytest-benchmark
def concat(len_list=1000):
    l = []
    for i in range(len_list):
        l = l + [i]
    return l 
    
def test_concat(benchmark):
    len_list = 1000 
    res = benchmark.pedantic(concat, kwargs={'len_list': len_list}, iterations=100)
    assert res == list(range(len_list))

#start spytest with visualization
pytest test_benchmark.py --benchmark-histogram