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Published November 21, 2021 | Version hypothesis-python-6.26.0
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Hypothesis: Property-Based Testing for Python

Authors/Creators

  • 1. Imperial College London
  • 2. Australian National University

Description

Did you know that of the 2^64 possible floating-point numbers, 2^53 of them are "nan" - and Python prints them all the same way?

While nans usually have all zeros in the sign bit and mantissa, this isn't always true, and 'signaling' nans might trap or error. To help distinguish such errors in e.g. CI logs, Hypothesis now prints "-nan" for negative nans, and adds a comment like "# Saw 3 signaling NaNs" if applicable.

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Notes

If you use Hypothesis as part of a published research project, please cite our paper in the Journal of Open Source Software: Text: MacIver et al., (2019). Hypothesis: A new approach to property-based testing. Journal of Open Source Software, 4(43), 1891, https://doi.org/10.21105/joss.01891 BibTeX: @article{MacIver2019Hypothesis, journal = {Journal of Open Source Software}, doi = {10.21105/joss.01891}, issn = {2475-9066}, number = {43}, publisher = {The Open Journal}, title = {Hypothesis: A new approach to property-based testing}, url = {http://dx.doi.org/10.21105/joss.01891}, volume = {4}, author = {MacIver, David and Hatfield-Dodds, Zac and Contributors, Many}, pages = {1891}, date = {2019-11-21}, year = {2019}, month = {11}, day = {21}, } To reference a particular version of Hypothesis as a software artifact, you can use the version-specific DOIs we create for each release under https://doi.org/10.5281/zenodo.1412597

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https://github.com/HypothesisWorks/hypothesis/tree/hypothesis-python-6.26.0 (URL)