unit test generation with pynguin

fibonacci.py

# Pynguin is now able to generate assertions for simple data types (int, float, str, and bool), 
# as well as checks for None return values.
# https://pynguin.readthedocs.io/en/latest/index.html
def fibonacci(n: int) -> int:
    assert n >= 0
    a, b = 1, 0
    for _ in range(n):
        a, b = a + b, a
    return a

Makefile

# usage: `$ make utest MODULE_NAME=fibonacci`
utest:
    if [ ! -d "test" ]; then mkdir test; fi
    pynguin --algorithm RANDOM --project_path . --output_path test --module_name ${MODULE_NAME}

# usage: `$ make run-utest`
run-utest:
    env PYTHONPATH=. pytest test --verbose --cov . --cov-report=html --cov-report=term-missing

# usage: `$ make show-cov MODULE_NAME=fibonacci`
show-cov:
    open -a "Google Chrome" htmlcov/${MODULE_NAME}_py.html

requirements.txt

# pip install -r requirements.txt
pynguin == 0.8.0
pytest == 6.2.3
pytest-cov == 2.11.1