8000 TST: split long ufunc.at test by mattip · Pull Request #22918 · numpy/numpy · GitHub
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TST: split long ufunc.at test #22918

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Merged
merged 2 commits into from
Jan 3, 2023
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TST: split long ufunc.at test #22918

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TST: split long ufunc.at test
mattip Jan 3, 2023
7762920
Update numpy/core/tests/test_ufunc.py
seberg Jan 3, 2023
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25 changes: 12 additions & 13 deletions numpy/core/tests/test_ufunc.py
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Original file line number Diff line number Diff line change
Expand Up @@ -1927,7 +1927,7 @@ def __rmul__(self, other):
np.arange(10, dtype=int),
np.arange(10, dtype=_rational_tests.rational),
))
def test_ufunc_at(self, a):
def test_ufunc_at_basic(self, a):

aa = a.copy()
np.add.at(aa, [2, 5, 2], 1)
Expand All @@ -1941,6 +1941,11 @@ def test_ufunc_at(self, a):
np.negative.at(aa, [2, 5, 3])
assert_equal(aa, [0, 1, -2, -3, 4, -5, 6, 7, 8, 9])

aa = a.copy()
b = np.array([100, 100, 100])
np.add.at(aa, [2, 5, 2], b)
assert_equal(aa, [0, 1, 202, 3, 4, 105, 6, 7, 8, 9])

with pytest.raises(ValueError):
# extraneous second operand
np.negative.at(a, [2, 5, 3], [1, 2, 3])
Expand All @@ -1949,12 +1954,7 @@ def test_ufunc_at(self, a):
# second operand cannot be converted to an array
np.add.at(a, [2, 5, 3], [[1, 2], 1])

# reset a
a = np.arange(10)
b = np.array([100, 100, 100])
np.add.at(a, [2, 5, 2], b)
assert_equal(a, [0, 1, 202, 3, 4, 105, 6, 7, 8, 9])

def test_ufunc_at_multiD(self):
a = np.arange(9).reshape(3, 3)
b = np.array([[100, 100, 100], [200, 200, 200], [300, 300, 300]])
np.add.at(a, (slice(None), [1, 2, 1]), b)
Expand Down Expand Up @@ -2034,23 +2034,21 @@ def test_ufunc_at(self, a):
[121, 222, 323],
[124, 225, 326]]])

a = np.arange(10)
np.negative.at(a, [2, 5, 2])
assert_equal(a, [0, 1, 2, 3, 4, -5, 6, 7, 8, 9])

# Test 0-dim array
def test_ufunc_at_0D(self):
a = np.array(0)
np.add.at(a, (), 1)
assert_equal(a, 1)

assert_raises(IndexError, np.add.at, a, 0, 1)
assert_raises(IndexError, np.add.at, a, [], 1)

def test_ufunc_at_dtypes(self):
# Test mixed dtypes
a = np.arange(10)
np.power.at(a, [1, 2, 3, 2], 3.5)
assert_equal(a, np.array([0, 1, 4414, 46, 4, 5, 6, 7, 8, 9]))

def test_ufunc_at_boolean(self):
# Test boolean indexing and boolean ufuncs
a = np.arange(10)
index = a % 2 == 0
Expand All @@ -2062,6 +2060,7 @@ def test_ufunc_at(self, a):
np.invert.at(a, [2, 5, 2])
assert_equal(a, [0, 1, 2, 3, 4, 5 ^ 0xffffffff, 6, 7, 8, 9])

def test_ufunc_at_advanced(self):
# Test empty subspace
orig = np.arange(4)
a = orig[:, None][:, 0:0]
Expand All @@ -2085,7 +2084,7 @@ def test_ufunc_at(self, a):
# Test maximum
a = np.array([1, 2, 3])
np.maximum.at(a, [0], 0)
assert_equal(np.array([1, 2, 3]), a)
assert_equal(a, np.array([1, 2, 3]))

def test_at_not_none_signature(self):
# Test ufuncs with non-trivial signature raise a TypeError
Expand Down
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