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TST: add test for df comparing strings to numbers raises ValueError #29535

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Merged
merged 5 commits into from
Nov 12, 2019
Merged

TST: add test for df comparing strings to numbers raises ValueError #29535

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a5199fe
add test for comparing strings to numbers df raises ValueError
ganevgv Nov 10, 2019
8f9000b
move test
ganevgv Nov 10, 2019
0b2b6a9
add parameterize over all operators
ganevgv Nov 11, 2019
a3795b3
use compare_operators_no_eq_ne
ganevgv Nov 12, 2019
a70c143
add _rasises to test name
ganevgv Nov 12, 2019
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10 changes: 10 additions & 0 deletions pandas/tests/frame/test_operators.py
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Original file line number Diff line number Diff line change
Expand Up @@ -530,6 +530,16 @@ def test_comp(func):
test_comp(operator.ge)
test_comp(operator.le)

def test_strings_to_numbers_comparisons_raises(self, compare_operators_no_eq_ne):
# GH 11565
df = DataFrame(
{x: {"x": "foo", "y": "bar", "z": "baz"} for x in ["a", "b", "c"]}
)

f = getattr(operator, compare_operators_no_eq_ne)
with pytest.raises(TypeError):
f(df, 0)

def test_comparison_protected_from_errstate(self):
missing_df = tm.makeDataFrame()
missing_df.iloc[0]["A"] = np.nan
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