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Add checks to maintain a consistent Python code style and prevent bugs (#515)

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A flake8 configuration is included in setup.cfg and the checks are
executed automatically on Travis:

* Ensures a consistent PEP8 code style
* Does basic linting to prevent possible bugs
This commit is contained in:
Dean Moldovan
2016-11-20 21:21:54 +01:00
committed by Wenzel Jakob
parent df81546965
commit bad1740213
22 changed files with 157 additions and 164 deletions
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79
tests/test_numpy_array.py
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@@ -144,10 +144,10 @@ def test_bounds_check(arr):
mutate_data, mutate_data_t, at_t, mutate_at_t)
for func in funcs:
with pytest.raises(IndexError) as excinfo:
index_at(arr, 2, 0)
func(arr, 2, 0)
assert str(excinfo.value) == 'index 2 is out of bounds for axis 0 with size 2'
with pytest.raises(IndexError) as excinfo:
index_at(arr, 0, 4)
func(arr, 0, 4)
assert str(excinfo.value) == 'index 4 is out of bounds for axis 1 with size 3'
@@ -166,50 +166,49 @@ def test_make_c_f_array():
def test_wrap():
from pybind11_tests.array import wrap
def assert_references(A, B):
assert A is not B
assert A.__array_interface__['data'][0] == \
B.__array_interface__['data'][0]
assert A.shape == B.shape
assert A.strides == B.strides
assert A.flags.c_contiguous == B.flags.c_contiguous
assert A.flags.f_contiguous == B.flags.f_contiguous
assert A.flags.writeable == B.flags.writeable
assert A.flags.aligned == B.flags.aligned
assert A.flags.updateifcopy == B.flags.updateifcopy
assert np.all(A == B)
assert not B.flags.owndata
assert B.base is A
if A.flags.writeable and A.ndim == 2:
A[0, 0] = 1234
assert B[0, 0] == 1234
def assert_references(a, b):
assert a is not b
assert a.__array_interface__['data'][0] == b.__array_interface__['data'][0]
assert a.shape == b.shape
assert a.strides == b.strides
assert a.flags.c_contiguous == b.flags.c_contiguous
assert a.flags.f_contiguous == b.flags.f_contiguous
assert a.flags.writeable == b.flags.writeable
assert a.flags.aligned == b.flags.aligned
assert a.flags.updateifcopy == b.flags.updateifcopy
assert np.all(a == b)
assert not b.flags.owndata
assert b.base is a
if a.flags.writeable and a.ndim == 2:
a[0, 0] = 1234
assert b[0, 0] == 1234
A1 = np.array([1, 2], dtype=np.int16)
assert A1.flags.owndata and A1.base is None
A2 = wrap(A1)
assert_references(A1, A2)
a1 = np.array([1, 2], dtype=np.int16)
assert a1.flags.owndata and a1.base is None
a2 = wrap(a1)
assert_references(a1, a2)
A1 = np.array([[1, 2], [3, 4]], dtype=np.float32, order='F')
assert A1.flags.owndata and A1.base is None
A2 = wrap(A1)
assert_references(A1, A2)
a1 = np.array([[1, 2], [3, 4]], dtype=np.float32, order='F')
assert a1.flags.owndata and a1.base is None
a2 = wrap(a1)
assert_references(a1, a2)
A1 = np.array([[1, 2], [3, 4]], dtype=np.float32, order='C')
A1.flags.writeable = False
A2 = wrap(A1)
assert_references(A1, A2)
a1 = np.array([[1, 2], [3, 4]], dtype=np.float32, order='C')
a1.flags.writeable = False
a2 = wrap(a1)
assert_references(a1, a2)
A1 = np.random.random((4, 4, 4))
A2 = wrap(A1)
assert_references(A1, A2)
a1 = np.random.random((4, 4, 4))
a2 = wrap(a1)
assert_references(a1, a2)
A1 = A1.transpose()
A2 = wrap(A1)
assert_references(A1, A2)
a1 = a1.transpose()
a2 = wrap(a1)
assert_references(a1, a2)
A1 = A1.diagonal()
A2 = wrap(A1)
assert_references(A1, A2)
a1 = a1.diagonal()
a2 = wrap(a1)
assert_references(a1, a2)
@pytest.requires_numpy