def test_union_same_step_misaligned(self):
# GH#44019
left = RangeIndex(range(0, 20, 4))
right = RangeIndex(range(1, 21, 4))
result = left.union(right)
expected = Int64Index([0, 1, 4, 5, 8, 9, 12, 13, 16, 17])
tm.assert_index_equal(result, expected, exact=True)
def test_range_float_union_dtype(self):
# https://github.com/pandas-dev/pandas/issues/26778
index = RangeIndex(start=0, stop=3)
other = Float64Index([0.5, 1.5])
result = index.union(other)
expected = Float64Index([0.0, 0.5, 1, 1.5, 2.0])
tm.assert_index_equal(result, expected)
result = other.union(index)
tm.assert_index_equal(result, expected)
def test_union_noncomparable(self, sort):
# corner case, non-Int64Index
index = RangeIndex(start=0, stop=20, step=2)
other = Index([datetime.now() + timedelta(i) for i in range(4)],
dtype=object)
result = index.union(other, sort=sort)
expected = Index(np.concatenate((index, other)))
tm.assert_index_equal(result, expected)
result = other.union(index, sort=sort)
expected = Index(np.concatenate((other, index)))
tm.assert_index_equal(result, expected)