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TST: Add test of building frame from named Series and columns (#9232) #16700

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Jun 15, 2017
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TST: Add test of building frame from named Series and columns (#9232) #16700

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16 changes: 16 additions & 0 deletions pandas/tests/frame/test_constructors.py
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Original file line number Diff line number Diff line change
Expand Up @@ -1108,6 +1108,22 @@ def test_constructor_Series_named(self):
expected = DataFrame({1: s1, 0: arr}, columns=[0, 1])
tm.assert_frame_equal(df, expected)

def test_constructor_Series_named_and_columns(self):
# GH 9232 validation

s0 = Series(range(5), name=0)
s1 = Series(range(5), name=1)

# matching name and column gives standard frame
tm.assert_frame_equal(pd.DataFrame(s0, columns=[0]),
s0.to_frame())
tm.assert_frame_equal(pd.DataFrame(s1, columns=[1]),
s1.to_frame())

# non-matching produces empty frame
assert pd.DataFrame(s0, columns=[1]).empty
assert pd.DataFrame(s1, columns=[0]).empty

def test_constructor_Series_differently_indexed(self):
# name
s1 = Series([1, 2, 3], index=['a', 'b', 'c'], name='x')
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