tests incompatible with hypothesis 4

[carlwgeorge]

• PrettyPrinter version: 0.17.0
• Python version: 3.7.3
• Operating System: Fedora 30

Description

requirements_dev.txt pins hypothesis at 3.33.0, but the latest version on PyPI is 4.14.5. I upgraded hypothesis and tried to run the tests again, but they failed. In hypothesis 4.0.0 the average_size argument was removed, which I think is what is causing the failure.

What I Did

$ pip install -U hypothesis
$ pytest -v

output (click to expand)

========================================================= test session starts ==========================================================
platform linux -- Python 3.7.3, pytest-4.3.0, py-1.8.0, pluggy-0.9.0 -- /root/prettyprinter-0.17.0/.env/bin/python3
cachedir: .pytest_cache
Django settings: prettyprinter_testproject.settings (from ini file)
hypothesis profile 'default' -> database=DirectoryBasedExampleDatabase('/root/prettyprinter-0.17.0/.hypothesis/examples')
rootdir: /root/prettyprinter-0.17.0, inifile: setup.cfg
plugins: pythonpath-0.7.3, django-3.4.7, hypothesis-4.14.5
collected 54 items / 1 errors / 53 selected                                                                                            

================================================================ ERRORS ================================================================
_____________________________________________ ERROR collecting tests/test_prettyprinter.py _____________________________________________
tests/test_prettyprinter.py:246: in <module>
    primitives() | primitives().map(type)
tests/test_prettyprinter.py:234: in containers
    return st.recursive(primitives, extend, max_leaves=50)
.env/lib64/python3.7/site-packages/hypothesis/_strategies.py:1653: in recursive
    return RecursiveStrategy(base, extend, max_leaves)
.env/lib64/python3.7/site-packages/hypothesis/searchstrategy/recursive.py:67: in __init__
    strategies = [self.limited_base, self.extend(self.limited_base)]
tests/test_prettyprinter.py:224: in extend
    st.lists(base, average_size=10, max_size=50),
E   TypeError: lists() got an unexpected keyword argument 'average_size'
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! Interrupted: 1 errors during collection !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
======================================================= 1 error in 0.65 seconds ========================================================

[tommikaikkonen]

Fixed in #58