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Update test_merge.py:TestMergeMulti.test_join_multi_levels #16262

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Update test_merge.py:TestMergeMulti.test_join_multi_levels #16262

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36 changes: 25 additions & 11 deletions pandas/tests/reshape/test_merge.py
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Original file line number Diff line number Diff line change
Expand Up @@ -1085,7 +1085,7 @@ def test_join_multi_levels(self):
dict(household_id=[1, 2, 2, 3, 3, 3, 4],
asset_id=["nl0000301109", "nl0000289783", "gb00b03mlx29",
"gb00b03mlx29", "lu0197800237", "nl0000289965",
np.nan],
"sk0300100229"],
name=["ABN Amro", "Robeco", "Royal Dutch Shell",
"Royal Dutch Shell",
"AAB Eastern Europe Equity Fund",
Expand All @@ -1110,8 +1110,14 @@ def test_join_multi_levels(self):
'nl0000289965']))
.set_index(['household_id', 'asset_id'])
.reindex(columns=['male', 'wealth', 'name', 'share']))
assert_frame_equal(result, expected)

expected.index = MultiIndex(levels=[
[1, 2, 3],
[u'gb00b03mlx29', u'lu0197800237',
u'nl0000289783', u'nl0000289965',
u'nl0000301109', u'sk0300100229']],
labels=[[0, 1, 1, 2, 2, 2],
[4, 2, 0, 0, 1, 3]],
names=[u'household_id', u'asset_id'])
assert_frame_equal(result, expected)

# equivalency
Expand All @@ -1121,14 +1127,22 @@ def test_join_multi_levels(self):
assert_frame_equal(result2, expected)

result = household.join(portfolio, how='outer')
expected = (concat([
expected,
(DataFrame(
dict(share=[1.00]),
index=MultiIndex.from_tuples(
[(4, np.nan)],
names=['household_id', 'asset_id'])))
], axis=0).reindex(columns=expected.columns))
expected = (
DataFrame(
dict(male=[0, 1, 1, 0, 0, 0, np.nan],
wealth=[196087.3, 316478.7, 316478.7,
294750.0, 294750.0, 294750.0, np.nan],
name=['ABN Amro', 'Robeco', 'Royal Dutch Shell',
'Royal Dutch Shell',
'AAB Eastern Europe Equity Fund',
'Postbank BioTech Fonds', np.nan],
share=[1.00, 0.40, 0.60, 0.15, 0.60, 0.25, 1.00],
household_id=[1, 2, 2, 3, 3, 3, 4],
asset_id=['nl0000301109', 'nl0000289783', 'gb00b03mlx29',
'gb00b03mlx29', 'lu0197800237',
'nl0000289965', 'sk0300100229']))
.set_index(['household_id', 'asset_id'])
.reindex(columns=['male', 'wealth', 'name', 'share']))
assert_frame_equal(result, expected)

# invalid cases
Expand Down