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Added ValueError testing for util.table_apply as asked in issue #476 #486

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Feb 11, 2021
Merged

Added ValueError testing for util.table_apply as asked in issue #476 #486

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5 changes: 5 additions & 0 deletions tests/test_util.py
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Original file line number Diff line number Diff line change
Expand Up @@ -3,6 +3,7 @@
import datascience as ds
from datascience import util
import numpy as np
import pytest

def test_doctests():
results = doctest.testmod(util, optionflags=doctest.NORMALIZE_WHITESPACE)
Expand Down Expand Up @@ -50,6 +51,10 @@ def test_table_apply():
assert all(newtab['a'] == tab['a'])
assert all(newtab['b'] == tab['b'] + 1)

with pytest.raises(ValueError) as err:
util.table_apply(tab, lambda a: a+1, subset=['b', 'd'])
assert "Colum mismatch: ['d']" in str(err.value)


def _round_eq(a, b):
if hasattr(a, '__len__'):
Expand Down