pybind11/tests/test_stl_binders.py
Jason Rhinelander 391c75447d Update all remaining tests to new test styles
This udpates all the remaining tests to the new test suite code and
comment styles started in #898.  For the most part, the test coverage
here is unchanged, with a few minor exceptions as noted below.

- test_constants_and_functions: this adds more overload tests with
  overloads with different number of arguments for more comprehensive
  overload_cast testing.  The test style conversion broke the overload
  tests under MSVC 2015, prompting the additional tests while looking
  for a workaround.

- test_eigen: this dropped the unused functions `get_cm_corners` and
  `get_cm_corners_const`--these same tests were duplicates of the same
  things provided (and used) via ReturnTester methods.

- test_opaque_types: this test had a hidden dependence on ExampleMandA
  which is now fixed by using the global UserType which suffices for the
  relevant test.

- test_methods_and_attributes: this required some additions to UserType
  to make it usable as a replacement for the test's previous SimpleType:
  UserType gained a value mutator, and the `value` property is not
  mutable (it was previously readonly).  Some overload tests were also
  added to better test overload_cast (as described above).

- test_numpy_array: removed the untemplated mutate_data/mutate_data_t:
  the templated versions with an empty parameter pack expand to the same
  thing.

- test_stl: this was already mostly in the new style; this just tweaks
  things a bit, localizing a class, and adding some missing
  `// test_whatever` comments.

- test_virtual_functions: like `test_stl`, this was mostly in the new
  test style already, but needed some `// test_whatever` comments.
  This commit also moves the inherited virtual example code to the end
  of the file, after the main set of tests (since it is less important
  than the other tests, and rather length); it also got renamed to
  `test_inherited_virtuals` (from `test_inheriting_repeat`) because it
  tests both inherited virtual approaches, not just the repeat approach.
2017-08-05 18:46:22 -04:00

182 lines
4.2 KiB
Python

import pytest
import sys
from pybind11_tests import stl_binders as m
with pytest.suppress(ImportError):
import numpy as np
def test_vector_int():
v_int = m.VectorInt([0, 0])
assert len(v_int) == 2
assert bool(v_int) is True
v_int2 = m.VectorInt([0, 0])
assert v_int == v_int2
v_int2[1] = 1
assert v_int != v_int2
v_int2.append(2)
v_int2.insert(0, 1)
v_int2.insert(0, 2)
v_int2.insert(0, 3)
v_int2.insert(6, 3)
assert str(v_int2) == "VectorInt[3, 2, 1, 0, 1, 2, 3]"
with pytest.raises(IndexError):
v_int2.insert(8, 4)
v_int.append(99)
v_int2[2:-2] = v_int
assert v_int2 == m.VectorInt([3, 2, 0, 0, 99, 2, 3])
del v_int2[1:3]
assert v_int2 == m.VectorInt([3, 0, 99, 2, 3])
del v_int2[0]
assert v_int2 == m.VectorInt([0, 99, 2, 3])
# related to the PyPy's buffer protocol.
@pytest.unsupported_on_pypy
def test_vector_buffer():
b = bytearray([1, 2, 3, 4])
v = m.VectorUChar(b)
assert v[1] == 2
v[2] = 5
mv = memoryview(v) # We expose the buffer interface
if sys.version_info.major > 2:
assert mv[2] == 5
mv[2] = 6
else:
assert mv[2] == '\x05'
mv[2] = '\x06'
assert v[2] == 6
with pytest.raises(RuntimeError) as excinfo:
m.create_undeclstruct() # Undeclared struct contents, no buffer interface
assert "NumPy type info missing for " in str(excinfo.value)
@pytest.unsupported_on_pypy
@pytest.requires_numpy
def test_vector_buffer_numpy():
a = np.array([1, 2, 3, 4], dtype=np.int32)
with pytest.raises(TypeError):
m.VectorInt(a)
a = np.array([[1, 2, 3, 4], [5, 6, 7, 8], [9, 10, 11, 12]], dtype=np.uintc)
v = m.VectorInt(a[0, :])
assert len(v) == 4
assert v[2] == 3
ma = np.asarray(v)
ma[2] = 5
assert v[2] == 5
v = m.VectorInt(a[:, 1])
assert len(v) == 3
assert v[2] == 10
v = m.get_vectorstruct()
assert v[0].x == 5
ma = np.asarray(v)
ma[1]['x'] = 99
assert v[1].x == 99
v = m.VectorStruct(np.zeros(3, dtype=np.dtype([('w', 'bool'), ('x', 'I'),
('y', 'float64'), ('z', 'bool')], align=True)))
assert len(v) == 3
def test_vector_bool():
vv_c = m.VectorBool()
for i in range(10):
vv_c.append(i % 2 == 0)
for i in range(10):
assert vv_c[i] == (i % 2 == 0)
assert str(vv_c) == "VectorBool[1, 0, 1, 0, 1, 0, 1, 0, 1, 0]"
def test_vector_custom():
v_a = m.VectorEl()
v_a.append(m.El(1))
v_a.append(m.El(2))
assert str(v_a) == "VectorEl[El{1}, El{2}]"
vv_a = m.VectorVectorEl()
vv_a.append(v_a)
vv_b = vv_a[0]
assert str(vv_b) == "VectorEl[El{1}, El{2}]"
def test_map_string_double():
mm = m.MapStringDouble()
mm['a'] = 1
mm['b'] = 2.5
assert list(mm) == ['a', 'b']
assert list(mm.items()) == [('a', 1), ('b', 2.5)]
assert str(mm) == "MapStringDouble{a: 1, b: 2.5}"
um = m.UnorderedMapStringDouble()
um['ua'] = 1.1
um['ub'] = 2.6
assert sorted(list(um)) == ['ua', 'ub']
assert sorted(list(um.items())) == [('ua', 1.1), ('ub', 2.6)]
assert "UnorderedMapStringDouble" in str(um)
def test_map_string_double_const():
mc = m.MapStringDoubleConst()
mc['a'] = 10
mc['b'] = 20.5
assert str(mc) == "MapStringDoubleConst{a: 10, b: 20.5}"
umc = m.UnorderedMapStringDoubleConst()
umc['a'] = 11
umc['b'] = 21.5
str(umc)
def test_noncopyable_containers():
# std::vector
vnc = m.get_vnc(5)
for i in range(0, 5):
assert vnc[i].value == i + 1
for i, j in enumerate(vnc, start=1):
assert j.value == i
# std::deque
dnc = m.get_dnc(5)
for i in range(0, 5):
assert dnc[i].value == i + 1
i = 1
for j in dnc:
assert(j.value == i)
i += 1
# std::map
mnc = m.get_mnc(5)
for i in range(1, 6):
assert mnc[i].value == 10 * i
vsum = 0
for k, v in mnc.items():
assert v.value == 10 * k
vsum += v.value
assert vsum == 150
# std::unordered_map
mnc = m.get_umnc(5)
for i in range(1, 6):
assert mnc[i].value == 10 * i
vsum = 0
for k, v in mnc.items():
assert v.value == 10 * k
vsum += v.value
assert vsum == 150