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Copy pathcheck_null_test.py
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32 lines (26 loc) · 976 Bytes
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from codonPython.check_null import check_null
import numpy as np
import pandas as pd
import pytest
testdata = pd.DataFrame({
"col1" : [1,2,3,4,5,6,7,8,9,10],
"col2" : [11,12,13,14,15,np.nan,np.nan,18,19,20],
})
@pytest.mark.parametrize("dataframe, columns_to_be_checked, expected", [
(testdata.iloc[:5, :], ["col1", "col2"], 0),
(testdata, ["col2"], 2),
])
def test_BAU(dataframe, columns_to_be_checked, expected):
assert check_null(dataframe, columns_to_be_checked) == expected
@pytest.mark.parametrize("dataframe, columns_to_be_checked", [
(testdata, 0.01),
])
def test_ValueError(dataframe, columns_to_be_checked):
with pytest.raises(ValueError):
check_null(dataframe, columns_to_be_checked)
@pytest.mark.parametrize("dataframe, columns_to_be_checked", [
(testdata, ["wrong_column"]),
])
def test_KeyError(dataframe, columns_to_be_checked):
with pytest.raises(KeyError):
check_null(dataframe, columns_to_be_checked)