def test_index_comparision():
start, stop = 10, 34
rg = RangeIndex(start, stop)
gi = Int64Index(np.arange(start, stop))
assert rg.equals(gi)
assert gi.equals(rg)
assert not rg[:-1].equals(gi)
assert rg[:-1].equals(gi[:-1])
def test_index_immutable():
start, stop = 10, 34
rg = RangeIndex(start, stop)
with pytest.raises(TypeError):
rg[1] = 5
gi = Int64Index(np.arange(start, stop))
with pytest.raises(TypeError):
gi[1] = 5
def test_index_find_label_range():
# Monotonic Index
idx = Int64Index(np.asarray([4, 5, 6, 10]))
assert idx.find_label_range(4, 6) == (0, 3)
assert idx.find_label_range(5, 10) == (1, 4)
assert idx.find_label_range(0, 6) == (0, 3)
assert idx.find_label_range(4, 11) == (0, 4)
# Non-monotonic Index
idx_nm = Int64Index(np.asarray([5, 4, 6, 10]))
assert idx_nm.find_label_range(4, 6) == (1, 3)
assert idx_nm.find_label_range(5, 10) == (0, 4)
# Last value not found
with pytest.raises(ValueError) as raises:
idx_nm.find_label_range(0, 6)
raises.match("value not found")
# Last value not found
with pytest.raises(ValueError) as raises:
idx_nm.find_label_range(4, 11)
raises.match("value not found")
def test_index_rename_preserves_arg():
idx1 = Int64Index([1, 2, 3], name="orig_name")
# this should be an entirely new object
idx2 = idx1.rename("new_name", inplace=False)
assert idx2.name == "new_name"
assert idx1.name == "orig_name"
# a new object but referencing the same data
idx3 = as_index(idx1, name="last_name")
assert idx3.name == "last_name"
assert idx1.name == "orig_name"
def test_name():
idx = Int64Index(np.asarray([4, 5, 6, 10]), name="foo")
assert idx.name == "foo"
def test_reductions(func):
x = np.asarray([4, 5, 6, 10])
idx = Int64Index(np.asarray([4, 5, 6, 10]))
assert func(x) == func(idx)