mirror of
https://github.com/pybind/pybind11.git
synced 2024-11-14 09:34:46 +00:00
4d9024ec71
* tests: refactor and cleanup * refactor: more consistent * tests: vendor six * tests: more xfails, nicer system * tests: simplify to info * tests: suggestions from @YannickJadoul and @bstaletic * tests: restore some pypy tests that now pass * tests: rename info to env * tests: strict False/True * tests: drop explicit strict=True again * tests: reduce minimum PyTest to 3.1
110 lines
3.0 KiB
Python
110 lines
3.0 KiB
Python
# -*- coding: utf-8 -*-
|
|
import io
|
|
import struct
|
|
|
|
import pytest
|
|
|
|
import env # noqa: F401
|
|
|
|
from pybind11_tests import buffers as m
|
|
from pybind11_tests import ConstructorStats
|
|
|
|
np = pytest.importorskip("numpy")
|
|
|
|
|
|
def test_from_python():
|
|
with pytest.raises(RuntimeError) as excinfo:
|
|
m.Matrix(np.array([1, 2, 3])) # trying to assign a 1D array
|
|
assert str(excinfo.value) == "Incompatible buffer format!"
|
|
|
|
m3 = np.array([[1, 2, 3], [4, 5, 6]]).astype(np.float32)
|
|
m4 = m.Matrix(m3)
|
|
|
|
for i in range(m4.rows()):
|
|
for j in range(m4.cols()):
|
|
assert m3[i, j] == m4[i, j]
|
|
|
|
cstats = ConstructorStats.get(m.Matrix)
|
|
assert cstats.alive() == 1
|
|
del m3, m4
|
|
assert cstats.alive() == 0
|
|
assert cstats.values() == ["2x3 matrix"]
|
|
assert cstats.copy_constructions == 0
|
|
# assert cstats.move_constructions >= 0 # Don't invoke any
|
|
assert cstats.copy_assignments == 0
|
|
assert cstats.move_assignments == 0
|
|
|
|
|
|
# https://foss.heptapod.net/pypy/pypy/-/issues/2444
|
|
def test_to_python():
|
|
mat = m.Matrix(5, 4)
|
|
assert memoryview(mat).shape == (5, 4)
|
|
|
|
assert mat[2, 3] == 0
|
|
mat[2, 3] = 4.0
|
|
mat[3, 2] = 7.0
|
|
assert mat[2, 3] == 4
|
|
assert mat[3, 2] == 7
|
|
assert struct.unpack_from('f', mat, (3 * 4 + 2) * 4) == (7, )
|
|
assert struct.unpack_from('f', mat, (2 * 4 + 3) * 4) == (4, )
|
|
|
|
mat2 = np.array(mat, copy=False)
|
|
assert mat2.shape == (5, 4)
|
|
assert abs(mat2).sum() == 11
|
|
assert mat2[2, 3] == 4 and mat2[3, 2] == 7
|
|
mat2[2, 3] = 5
|
|
assert mat2[2, 3] == 5
|
|
|
|
cstats = ConstructorStats.get(m.Matrix)
|
|
assert cstats.alive() == 1
|
|
del mat
|
|
pytest.gc_collect()
|
|
assert cstats.alive() == 1
|
|
del mat2 # holds a mat reference
|
|
pytest.gc_collect()
|
|
assert cstats.alive() == 0
|
|
assert cstats.values() == ["5x4 matrix"]
|
|
assert cstats.copy_constructions == 0
|
|
# assert cstats.move_constructions >= 0 # Don't invoke any
|
|
assert cstats.copy_assignments == 0
|
|
assert cstats.move_assignments == 0
|
|
|
|
|
|
def test_inherited_protocol():
|
|
"""SquareMatrix is derived from Matrix and inherits the buffer protocol"""
|
|
|
|
matrix = m.SquareMatrix(5)
|
|
assert memoryview(matrix).shape == (5, 5)
|
|
assert np.asarray(matrix).shape == (5, 5)
|
|
|
|
|
|
def test_pointer_to_member_fn():
|
|
for cls in [m.Buffer, m.ConstBuffer, m.DerivedBuffer]:
|
|
buf = cls()
|
|
buf.value = 0x12345678
|
|
value = struct.unpack('i', bytearray(buf))[0]
|
|
assert value == 0x12345678
|
|
|
|
|
|
def test_readonly_buffer():
|
|
buf = m.BufferReadOnly(0x64)
|
|
view = memoryview(buf)
|
|
assert view[0] == b'd' if env.PY2 else 0x64
|
|
assert view.readonly
|
|
|
|
|
|
def test_selective_readonly_buffer():
|
|
buf = m.BufferReadOnlySelect()
|
|
|
|
memoryview(buf)[0] = b'd' if env.PY2 else 0x64
|
|
assert buf.value == 0x64
|
|
|
|
io.BytesIO(b'A').readinto(buf)
|
|
assert buf.value == ord(b'A')
|
|
|
|
buf.readonly = True
|
|
with pytest.raises(TypeError):
|
|
memoryview(buf)[0] = b'\0' if env.PY2 else 0
|
|
with pytest.raises(TypeError):
|
|
io.BytesIO(b'1').readinto(buf)
|