Snape is a convenient artificial dataset generator that wraps sklearn's make_classification and make_regression and then adds in 'realism' features such as complex formating, varying scales, categorical variables, and missing values.
Coverage increased (+21.6%) to 95.909% when pulling 80fded3ce5790bdc290862bc670acf6d80beb7a5 on increase_test_coverage into 7f6c0b94a0d311f4b247a1dc931eca393d6ab2c3 on master.
Fixed some of @tgsmith61591 homework for me and wrote many unit tests.