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TST: add missing iloc label indexing tests #38967

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Merged
merged 5 commits into from
Jan 5, 2021
Merged

TST: add missing iloc label indexing tests #38967

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a913e26
TST: add missing loc label indexing test
vangorade Jan 1, 2021
f941c09
formated file using black
vangorade Jan 2, 2021
c3c7ecd
TST: Added missing iloc tests
vangorade Jan 5, 2021
4efc884
Merge branch 'master' of https://github.com/vangorade/pandas into tes…
vangorade Jan 5, 2021
06ae2e5
updated
vangorade Jan 5, 2021
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65 changes: 57 additions & 8 deletions pandas/tests/indexing/test_iloc.py
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Original file line number Diff line number Diff line change
Expand Up @@ -61,8 +61,8 @@ def test_iloc_getitem_list_int(self):
# the correct type


class TestiLoc2:
# TODO: better name, just separating out things that dont rely on base class
class TestiLocBaseIndependent:
"""Tests Independent Of Base Class"""

def test_is_scalar_access(self):
# GH#32085 index with duplicates doesnt matter for _is_scalar_access
Expand Down Expand Up @@ -262,12 +262,42 @@ def test_iloc_getitem_dups(self):
tm.assert_series_equal(result, expected)

def test_iloc_getitem_array(self):
# TODO: test something here?
pass
df = DataFrame(
[
{"A": 1, "B": 2, "C": 3},
{"A": 100, "B": 200, "C": 300},
{"A": 1000, "B": 2000, "C": 3000},
]
)

expected = DataFrame([{"A": 1, "B": 2, "C": 3}])
tm.assert_frame_equal(df.iloc[[0]], expected)

expected = DataFrame([{"A": 1, "B": 2, "C": 3}, {"A": 100, "B": 200, "C": 300}])
tm.assert_frame_equal(df.iloc[[0, 1]], expected)

expected = DataFrame([{"B": 2, "C": 3}, {"B": 2000, "C": 3000}], index=[0, 2])
result = df.iloc[[0, 2], [1, 2]]
tm.assert_frame_equal(result, expected)

def test_iloc_getitem_bool(self):
# TODO: test something here?
pass
df = DataFrame(
[
{"A": 1, "B": 2, "C": 3},
{"A": 100, "B": 200, "C": 300},
{"A": 1000, "B": 2000, "C": 3000},
]
)

expected = DataFrame([{"A": 1, "B": 2, "C": 3}, {"A": 100, "B": 200, "C": 300}])
result = df.iloc[[True, True, False]]
tm.assert_frame_equal(result, expected)

expected = DataFrame(
[{"A": 1, "B": 2, "C": 3}, {"A": 1000, "B": 2000, "C": 3000}], index=[0, 2]
)
result = df.iloc[lambda x: x.index % 2 == 0]
tm.assert_frame_equal(result, expected)

@pytest.mark.parametrize("index", [[True, False], [True, False, True, False]])
def test_iloc_getitem_bool_diff_len(self, index):
Expand All @@ -278,8 +308,27 @@ def test_iloc_getitem_bool_diff_len(self, index):
_ = s.iloc[index]

def test_iloc_getitem_slice(self):
# TODO: test something here?
pass
df = DataFrame(
[
{"A": 1, "B": 2, "C": 3},
{"A": 100, "B": 200, "C": 300},
{"A": 1000, "B": 2000, "C": 3000},
]
)

expected = DataFrame([{"A": 1, "B": 2, "C": 3}, {"A": 100, "B": 200, "C": 300}])
result = df.iloc[:2]
tm.assert_frame_equal(result, expected)

expected = DataFrame([{"A": 100, "B": 200}], index=[1])
result = df.iloc[1:2, 0:2]
tm.assert_frame_equal(result, expected)

expected = DataFrame(
[{"A": 1, "C": 3}, {"A": 100, "C": 300}, {"A": 1000, "C": 3000}]
)
result = df.iloc[:, lambda df: [0, 2]]
tm.assert_frame_equal(result, expected)

def test_iloc_getitem_slice_dups(self):

Expand Down