Ivan Smirnov | 91b3d68 | 2016-08-29 02:41:05 +0100 | [diff] [blame] | 1 | import pytest |
Jason Rhinelander | 391c754 | 2017-07-25 16:47:36 -0400 | [diff] [blame] | 2 | from pybind11_tests import numpy_array as m |
Ivan Smirnov | 91b3d68 | 2016-08-29 02:41:05 +0100 | [diff] [blame] | 3 | |
Jason Rhinelander | 2a75784 | 2017-01-24 11:26:51 -0500 | [diff] [blame] | 4 | pytestmark = pytest.requires_numpy |
| 5 | |
Ivan Smirnov | 91b3d68 | 2016-08-29 02:41:05 +0100 | [diff] [blame] | 6 | with pytest.suppress(ImportError): |
| 7 | import numpy as np |
| 8 | |
| 9 | |
Ivan Smirnov | aca6bca | 2016-09-08 23:03:35 +0100 | [diff] [blame] | 10 | @pytest.fixture(scope='function') |
| 11 | def arr(): |
Jason Rhinelander | 0861be0 | 2017-02-25 16:43:01 -0500 | [diff] [blame] | 12 | return np.array([[1, 2, 3], [4, 5, 6]], '=u2') |
Ivan Smirnov | aca6bca | 2016-09-08 23:03:35 +0100 | [diff] [blame] | 13 | |
| 14 | |
Ivan Smirnov | 91b3d68 | 2016-08-29 02:41:05 +0100 | [diff] [blame] | 15 | def test_array_attributes(): |
Ivan Smirnov | 91b3d68 | 2016-08-29 02:41:05 +0100 | [diff] [blame] | 16 | a = np.array(0, 'f8') |
Jason Rhinelander | 391c754 | 2017-07-25 16:47:36 -0400 | [diff] [blame] | 17 | assert m.ndim(a) == 0 |
| 18 | assert all(m.shape(a) == []) |
| 19 | assert all(m.strides(a) == []) |
Ivan Smirnov | aca6bca | 2016-09-08 23:03:35 +0100 | [diff] [blame] | 20 | with pytest.raises(IndexError) as excinfo: |
Jason Rhinelander | 391c754 | 2017-07-25 16:47:36 -0400 | [diff] [blame] | 21 | m.shape(a, 0) |
Ivan Smirnov | aca6bca | 2016-09-08 23:03:35 +0100 | [diff] [blame] | 22 | assert str(excinfo.value) == 'invalid axis: 0 (ndim = 0)' |
| 23 | with pytest.raises(IndexError) as excinfo: |
Jason Rhinelander | 391c754 | 2017-07-25 16:47:36 -0400 | [diff] [blame] | 24 | m.strides(a, 0) |
Ivan Smirnov | aca6bca | 2016-09-08 23:03:35 +0100 | [diff] [blame] | 25 | assert str(excinfo.value) == 'invalid axis: 0 (ndim = 0)' |
Jason Rhinelander | 391c754 | 2017-07-25 16:47:36 -0400 | [diff] [blame] | 26 | assert m.writeable(a) |
| 27 | assert m.size(a) == 1 |
| 28 | assert m.itemsize(a) == 8 |
| 29 | assert m.nbytes(a) == 8 |
| 30 | assert m.owndata(a) |
Ivan Smirnov | 91b3d68 | 2016-08-29 02:41:05 +0100 | [diff] [blame] | 31 | |
| 32 | a = np.array([[1, 2, 3], [4, 5, 6]], 'u2').view() |
| 33 | a.flags.writeable = False |
Jason Rhinelander | 391c754 | 2017-07-25 16:47:36 -0400 | [diff] [blame] | 34 | assert m.ndim(a) == 2 |
| 35 | assert all(m.shape(a) == [2, 3]) |
| 36 | assert m.shape(a, 0) == 2 |
| 37 | assert m.shape(a, 1) == 3 |
| 38 | assert all(m.strides(a) == [6, 2]) |
| 39 | assert m.strides(a, 0) == 6 |
| 40 | assert m.strides(a, 1) == 2 |
Ivan Smirnov | aca6bca | 2016-09-08 23:03:35 +0100 | [diff] [blame] | 41 | with pytest.raises(IndexError) as excinfo: |
Jason Rhinelander | 391c754 | 2017-07-25 16:47:36 -0400 | [diff] [blame] | 42 | m.shape(a, 2) |
Ivan Smirnov | aca6bca | 2016-09-08 23:03:35 +0100 | [diff] [blame] | 43 | assert str(excinfo.value) == 'invalid axis: 2 (ndim = 2)' |
| 44 | with pytest.raises(IndexError) as excinfo: |
Jason Rhinelander | 391c754 | 2017-07-25 16:47:36 -0400 | [diff] [blame] | 45 | m.strides(a, 2) |
Ivan Smirnov | aca6bca | 2016-09-08 23:03:35 +0100 | [diff] [blame] | 46 | assert str(excinfo.value) == 'invalid axis: 2 (ndim = 2)' |
Jason Rhinelander | 391c754 | 2017-07-25 16:47:36 -0400 | [diff] [blame] | 47 | assert not m.writeable(a) |
| 48 | assert m.size(a) == 6 |
| 49 | assert m.itemsize(a) == 2 |
| 50 | assert m.nbytes(a) == 12 |
| 51 | assert not m.owndata(a) |
Ivan Smirnov | aca6bca | 2016-09-08 23:03:35 +0100 | [diff] [blame] | 52 | |
| 53 | |
Ivan Smirnov | aca6bca | 2016-09-08 23:03:35 +0100 | [diff] [blame] | 54 | @pytest.mark.parametrize('args, ret', [([], 0), ([0], 0), ([1], 3), ([0, 1], 1), ([1, 2], 5)]) |
| 55 | def test_index_offset(arr, args, ret): |
Jason Rhinelander | 391c754 | 2017-07-25 16:47:36 -0400 | [diff] [blame] | 56 | assert m.index_at(arr, *args) == ret |
| 57 | assert m.index_at_t(arr, *args) == ret |
| 58 | assert m.offset_at(arr, *args) == ret * arr.dtype.itemsize |
| 59 | assert m.offset_at_t(arr, *args) == ret * arr.dtype.itemsize |
Ivan Smirnov | aca6bca | 2016-09-08 23:03:35 +0100 | [diff] [blame] | 60 | |
| 61 | |
Ivan Smirnov | aca6bca | 2016-09-08 23:03:35 +0100 | [diff] [blame] | 62 | def test_dim_check_fail(arr): |
Jason Rhinelander | 391c754 | 2017-07-25 16:47:36 -0400 | [diff] [blame] | 63 | for func in (m.index_at, m.index_at_t, m.offset_at, m.offset_at_t, m.data, m.data_t, |
| 64 | m.mutate_data, m.mutate_data_t): |
Ivan Smirnov | aca6bca | 2016-09-08 23:03:35 +0100 | [diff] [blame] | 65 | with pytest.raises(IndexError) as excinfo: |
| 66 | func(arr, 1, 2, 3) |
| 67 | assert str(excinfo.value) == 'too many indices for an array: 3 (ndim = 2)' |
| 68 | |
| 69 | |
Ivan Smirnov | aca6bca | 2016-09-08 23:03:35 +0100 | [diff] [blame] | 70 | @pytest.mark.parametrize('args, ret', |
| 71 | [([], [1, 2, 3, 4, 5, 6]), |
| 72 | ([1], [4, 5, 6]), |
| 73 | ([0, 1], [2, 3, 4, 5, 6]), |
| 74 | ([1, 2], [6])]) |
| 75 | def test_data(arr, args, ret): |
Jason Rhinelander | 0861be0 | 2017-02-25 16:43:01 -0500 | [diff] [blame] | 76 | from sys import byteorder |
Jason Rhinelander | 391c754 | 2017-07-25 16:47:36 -0400 | [diff] [blame] | 77 | assert all(m.data_t(arr, *args) == ret) |
| 78 | assert all(m.data(arr, *args)[(0 if byteorder == 'little' else 1)::2] == ret) |
| 79 | assert all(m.data(arr, *args)[(1 if byteorder == 'little' else 0)::2] == 0) |
Ivan Smirnov | aca6bca | 2016-09-08 23:03:35 +0100 | [diff] [blame] | 80 | |
| 81 | |
Ivan Smirnov | aca6bca | 2016-09-08 23:03:35 +0100 | [diff] [blame] | 82 | @pytest.mark.parametrize('dim', [0, 1, 3]) |
| 83 | def test_at_fail(arr, dim): |
Jason Rhinelander | 391c754 | 2017-07-25 16:47:36 -0400 | [diff] [blame] | 84 | for func in m.at_t, m.mutate_at_t: |
Ivan Smirnov | aca6bca | 2016-09-08 23:03:35 +0100 | [diff] [blame] | 85 | with pytest.raises(IndexError) as excinfo: |
| 86 | func(arr, *([0] * dim)) |
| 87 | assert str(excinfo.value) == 'index dimension mismatch: {} (ndim = 2)'.format(dim) |
| 88 | |
| 89 | |
Ivan Smirnov | aca6bca | 2016-09-08 23:03:35 +0100 | [diff] [blame] | 90 | def test_at(arr): |
Jason Rhinelander | 391c754 | 2017-07-25 16:47:36 -0400 | [diff] [blame] | 91 | assert m.at_t(arr, 0, 2) == 3 |
| 92 | assert m.at_t(arr, 1, 0) == 4 |
Ivan Smirnov | aca6bca | 2016-09-08 23:03:35 +0100 | [diff] [blame] | 93 | |
Jason Rhinelander | 391c754 | 2017-07-25 16:47:36 -0400 | [diff] [blame] | 94 | assert all(m.mutate_at_t(arr, 0, 2).ravel() == [1, 2, 4, 4, 5, 6]) |
| 95 | assert all(m.mutate_at_t(arr, 1, 0).ravel() == [1, 2, 4, 5, 5, 6]) |
Ivan Smirnov | aca6bca | 2016-09-08 23:03:35 +0100 | [diff] [blame] | 96 | |
Jason Rhinelander | 391c754 | 2017-07-25 16:47:36 -0400 | [diff] [blame] | 97 | |
| 98 | def test_mutate_readonly(arr): |
| 99 | arr.flags.writeable = False |
| 100 | for func, args in (m.mutate_data, ()), (m.mutate_data_t, ()), (m.mutate_at_t, (0, 0)): |
| 101 | with pytest.raises(ValueError) as excinfo: |
| 102 | func(arr, *args) |
| 103 | assert str(excinfo.value) == 'array is not writeable' |
Ivan Smirnov | aca6bca | 2016-09-08 23:03:35 +0100 | [diff] [blame] | 104 | |
| 105 | |
Ivan Smirnov | aca6bca | 2016-09-08 23:03:35 +0100 | [diff] [blame] | 106 | def test_mutate_data(arr): |
Jason Rhinelander | 391c754 | 2017-07-25 16:47:36 -0400 | [diff] [blame] | 107 | assert all(m.mutate_data(arr).ravel() == [2, 4, 6, 8, 10, 12]) |
| 108 | assert all(m.mutate_data(arr).ravel() == [4, 8, 12, 16, 20, 24]) |
| 109 | assert all(m.mutate_data(arr, 1).ravel() == [4, 8, 12, 32, 40, 48]) |
| 110 | assert all(m.mutate_data(arr, 0, 1).ravel() == [4, 16, 24, 64, 80, 96]) |
| 111 | assert all(m.mutate_data(arr, 1, 2).ravel() == [4, 16, 24, 64, 80, 192]) |
Ivan Smirnov | aca6bca | 2016-09-08 23:03:35 +0100 | [diff] [blame] | 112 | |
Jason Rhinelander | 391c754 | 2017-07-25 16:47:36 -0400 | [diff] [blame] | 113 | assert all(m.mutate_data_t(arr).ravel() == [5, 17, 25, 65, 81, 193]) |
| 114 | assert all(m.mutate_data_t(arr).ravel() == [6, 18, 26, 66, 82, 194]) |
| 115 | assert all(m.mutate_data_t(arr, 1).ravel() == [6, 18, 26, 67, 83, 195]) |
| 116 | assert all(m.mutate_data_t(arr, 0, 1).ravel() == [6, 19, 27, 68, 84, 196]) |
| 117 | assert all(m.mutate_data_t(arr, 1, 2).ravel() == [6, 19, 27, 68, 84, 197]) |
Ivan Smirnov | aca6bca | 2016-09-08 23:03:35 +0100 | [diff] [blame] | 118 | |
| 119 | |
Ivan Smirnov | aca6bca | 2016-09-08 23:03:35 +0100 | [diff] [blame] | 120 | def test_bounds_check(arr): |
Jason Rhinelander | 391c754 | 2017-07-25 16:47:36 -0400 | [diff] [blame] | 121 | for func in (m.index_at, m.index_at_t, m.data, m.data_t, |
| 122 | m.mutate_data, m.mutate_data_t, m.at_t, m.mutate_at_t): |
Ivan Smirnov | aca6bca | 2016-09-08 23:03:35 +0100 | [diff] [blame] | 123 | with pytest.raises(IndexError) as excinfo: |
Dean Moldovan | bad1740 | 2016-11-20 21:21:54 +0100 | [diff] [blame] | 124 | func(arr, 2, 0) |
Ivan Smirnov | aca6bca | 2016-09-08 23:03:35 +0100 | [diff] [blame] | 125 | assert str(excinfo.value) == 'index 2 is out of bounds for axis 0 with size 2' |
| 126 | with pytest.raises(IndexError) as excinfo: |
Dean Moldovan | bad1740 | 2016-11-20 21:21:54 +0100 | [diff] [blame] | 127 | func(arr, 0, 4) |
Ivan Smirnov | aca6bca | 2016-09-08 23:03:35 +0100 | [diff] [blame] | 128 | assert str(excinfo.value) == 'index 4 is out of bounds for axis 1 with size 3' |
Wenzel Jakob | 43f6aa6 | 2016-10-12 23:34:06 +0200 | [diff] [blame] | 129 | |
Wenzel Jakob | 369e9b3 | 2016-10-13 00:57:42 +0200 | [diff] [blame] | 130 | |
Wenzel Jakob | 43f6aa6 | 2016-10-12 23:34:06 +0200 | [diff] [blame] | 131 | def test_make_c_f_array(): |
Jason Rhinelander | 391c754 | 2017-07-25 16:47:36 -0400 | [diff] [blame] | 132 | assert m.make_c_array().flags.c_contiguous |
| 133 | assert not m.make_c_array().flags.f_contiguous |
| 134 | assert m.make_f_array().flags.f_contiguous |
| 135 | assert not m.make_f_array().flags.c_contiguous |
Wenzel Jakob | 369e9b3 | 2016-10-13 00:57:42 +0200 | [diff] [blame] | 136 | |
| 137 | |
Wenzel Jakob | 369e9b3 | 2016-10-13 00:57:42 +0200 | [diff] [blame] | 138 | def test_wrap(): |
Jason Rhinelander | f86dddf | 2017-01-16 20:22:00 -0500 | [diff] [blame] | 139 | def assert_references(a, b, base=None): |
| 140 | if base is None: |
| 141 | base = a |
Dean Moldovan | bad1740 | 2016-11-20 21:21:54 +0100 | [diff] [blame] | 142 | assert a is not b |
| 143 | assert a.__array_interface__['data'][0] == b.__array_interface__['data'][0] |
| 144 | assert a.shape == b.shape |
| 145 | assert a.strides == b.strides |
| 146 | assert a.flags.c_contiguous == b.flags.c_contiguous |
| 147 | assert a.flags.f_contiguous == b.flags.f_contiguous |
| 148 | assert a.flags.writeable == b.flags.writeable |
| 149 | assert a.flags.aligned == b.flags.aligned |
| 150 | assert a.flags.updateifcopy == b.flags.updateifcopy |
| 151 | assert np.all(a == b) |
| 152 | assert not b.flags.owndata |
Jason Rhinelander | f86dddf | 2017-01-16 20:22:00 -0500 | [diff] [blame] | 153 | assert b.base is base |
Dean Moldovan | bad1740 | 2016-11-20 21:21:54 +0100 | [diff] [blame] | 154 | if a.flags.writeable and a.ndim == 2: |
| 155 | a[0, 0] = 1234 |
| 156 | assert b[0, 0] == 1234 |
Wenzel Jakob | 369e9b3 | 2016-10-13 00:57:42 +0200 | [diff] [blame] | 157 | |
Dean Moldovan | bad1740 | 2016-11-20 21:21:54 +0100 | [diff] [blame] | 158 | a1 = np.array([1, 2], dtype=np.int16) |
| 159 | assert a1.flags.owndata and a1.base is None |
Jason Rhinelander | 391c754 | 2017-07-25 16:47:36 -0400 | [diff] [blame] | 160 | a2 = m.wrap(a1) |
Dean Moldovan | bad1740 | 2016-11-20 21:21:54 +0100 | [diff] [blame] | 161 | assert_references(a1, a2) |
Wenzel Jakob | 369e9b3 | 2016-10-13 00:57:42 +0200 | [diff] [blame] | 162 | |
Dean Moldovan | bad1740 | 2016-11-20 21:21:54 +0100 | [diff] [blame] | 163 | a1 = np.array([[1, 2], [3, 4]], dtype=np.float32, order='F') |
| 164 | assert a1.flags.owndata and a1.base is None |
Jason Rhinelander | 391c754 | 2017-07-25 16:47:36 -0400 | [diff] [blame] | 165 | a2 = m.wrap(a1) |
Dean Moldovan | bad1740 | 2016-11-20 21:21:54 +0100 | [diff] [blame] | 166 | assert_references(a1, a2) |
Wenzel Jakob | 369e9b3 | 2016-10-13 00:57:42 +0200 | [diff] [blame] | 167 | |
Dean Moldovan | bad1740 | 2016-11-20 21:21:54 +0100 | [diff] [blame] | 168 | a1 = np.array([[1, 2], [3, 4]], dtype=np.float32, order='C') |
| 169 | a1.flags.writeable = False |
Jason Rhinelander | 391c754 | 2017-07-25 16:47:36 -0400 | [diff] [blame] | 170 | a2 = m.wrap(a1) |
Dean Moldovan | bad1740 | 2016-11-20 21:21:54 +0100 | [diff] [blame] | 171 | assert_references(a1, a2) |
Wenzel Jakob | 369e9b3 | 2016-10-13 00:57:42 +0200 | [diff] [blame] | 172 | |
Dean Moldovan | bad1740 | 2016-11-20 21:21:54 +0100 | [diff] [blame] | 173 | a1 = np.random.random((4, 4, 4)) |
Jason Rhinelander | 391c754 | 2017-07-25 16:47:36 -0400 | [diff] [blame] | 174 | a2 = m.wrap(a1) |
Dean Moldovan | bad1740 | 2016-11-20 21:21:54 +0100 | [diff] [blame] | 175 | assert_references(a1, a2) |
Wenzel Jakob | 369e9b3 | 2016-10-13 00:57:42 +0200 | [diff] [blame] | 176 | |
Jason Rhinelander | f86dddf | 2017-01-16 20:22:00 -0500 | [diff] [blame] | 177 | a1t = a1.transpose() |
Jason Rhinelander | 391c754 | 2017-07-25 16:47:36 -0400 | [diff] [blame] | 178 | a2 = m.wrap(a1t) |
Jason Rhinelander | f86dddf | 2017-01-16 20:22:00 -0500 | [diff] [blame] | 179 | assert_references(a1t, a2, a1) |
Wenzel Jakob | 369e9b3 | 2016-10-13 00:57:42 +0200 | [diff] [blame] | 180 | |
Jason Rhinelander | f86dddf | 2017-01-16 20:22:00 -0500 | [diff] [blame] | 181 | a1d = a1.diagonal() |
Jason Rhinelander | 391c754 | 2017-07-25 16:47:36 -0400 | [diff] [blame] | 182 | a2 = m.wrap(a1d) |
Jason Rhinelander | f86dddf | 2017-01-16 20:22:00 -0500 | [diff] [blame] | 183 | assert_references(a1d, a2, a1) |
Wenzel Jakob | fac7c09 | 2016-10-13 10:37:52 +0200 | [diff] [blame] | 184 | |
Cris Luengo | d400f60 | 2017-04-05 16:13:04 -0600 | [diff] [blame] | 185 | a1m = a1[::-1, ::-1, ::-1] |
Jason Rhinelander | 391c754 | 2017-07-25 16:47:36 -0400 | [diff] [blame] | 186 | a2 = m.wrap(a1m) |
Cris Luengo | d400f60 | 2017-04-05 16:13:04 -0600 | [diff] [blame] | 187 | assert_references(a1m, a2, a1) |
| 188 | |
Wenzel Jakob | fac7c09 | 2016-10-13 10:37:52 +0200 | [diff] [blame] | 189 | |
Wenzel Jakob | fac7c09 | 2016-10-13 10:37:52 +0200 | [diff] [blame] | 190 | def test_numpy_view(capture): |
Wenzel Jakob | fac7c09 | 2016-10-13 10:37:52 +0200 | [diff] [blame] | 191 | with capture: |
Jason Rhinelander | 391c754 | 2017-07-25 16:47:36 -0400 | [diff] [blame] | 192 | ac = m.ArrayClass() |
Wenzel Jakob | fac7c09 | 2016-10-13 10:37:52 +0200 | [diff] [blame] | 193 | ac_view_1 = ac.numpy_view() |
| 194 | ac_view_2 = ac.numpy_view() |
| 195 | assert np.all(ac_view_1 == np.array([1, 2], dtype=np.int32)) |
| 196 | del ac |
Wenzel Jakob | 1d1f81b | 2016-12-16 15:00:46 +0100 | [diff] [blame] | 197 | pytest.gc_collect() |
Wenzel Jakob | fac7c09 | 2016-10-13 10:37:52 +0200 | [diff] [blame] | 198 | assert capture == """ |
| 199 | ArrayClass() |
| 200 | ArrayClass::numpy_view() |
| 201 | ArrayClass::numpy_view() |
| 202 | """ |
| 203 | ac_view_1[0] = 4 |
| 204 | ac_view_1[1] = 3 |
| 205 | assert ac_view_2[0] == 4 |
| 206 | assert ac_view_2[1] == 3 |
| 207 | with capture: |
| 208 | del ac_view_1 |
| 209 | del ac_view_2 |
Wenzel Jakob | 1d1f81b | 2016-12-16 15:00:46 +0100 | [diff] [blame] | 210 | pytest.gc_collect() |
| 211 | pytest.gc_collect() |
Wenzel Jakob | fac7c09 | 2016-10-13 10:37:52 +0200 | [diff] [blame] | 212 | assert capture == """ |
| 213 | ~ArrayClass() |
| 214 | """ |
Wenzel Jakob | 496feac | 2016-10-28 00:37:07 +0200 | [diff] [blame] | 215 | |
| 216 | |
Wenzel Jakob | 1d1f81b | 2016-12-16 15:00:46 +0100 | [diff] [blame] | 217 | @pytest.unsupported_on_pypy |
Wenzel Jakob | 496feac | 2016-10-28 00:37:07 +0200 | [diff] [blame] | 218 | def test_cast_numpy_int64_to_uint64(): |
Jason Rhinelander | 391c754 | 2017-07-25 16:47:36 -0400 | [diff] [blame] | 219 | m.function_taking_uint64(123) |
| 220 | m.function_taking_uint64(np.uint64(123)) |
Dean Moldovan | 4de2710 | 2016-11-16 01:35:22 +0100 | [diff] [blame] | 221 | |
| 222 | |
Dean Moldovan | 4de2710 | 2016-11-16 01:35:22 +0100 | [diff] [blame] | 223 | def test_isinstance(): |
Jason Rhinelander | 391c754 | 2017-07-25 16:47:36 -0400 | [diff] [blame] | 224 | assert m.isinstance_untyped(np.array([1, 2, 3]), "not an array") |
| 225 | assert m.isinstance_typed(np.array([1.0, 2.0, 3.0])) |
Dean Moldovan | 4de2710 | 2016-11-16 01:35:22 +0100 | [diff] [blame] | 226 | |
| 227 | |
Dean Moldovan | 4de2710 | 2016-11-16 01:35:22 +0100 | [diff] [blame] | 228 | def test_constructors(): |
Jason Rhinelander | 391c754 | 2017-07-25 16:47:36 -0400 | [diff] [blame] | 229 | defaults = m.default_constructors() |
Dean Moldovan | 4de2710 | 2016-11-16 01:35:22 +0100 | [diff] [blame] | 230 | for a in defaults.values(): |
| 231 | assert a.size == 0 |
| 232 | assert defaults["array"].dtype == np.array([]).dtype |
| 233 | assert defaults["array_t<int32>"].dtype == np.int32 |
| 234 | assert defaults["array_t<double>"].dtype == np.float64 |
| 235 | |
Jason Rhinelander | 391c754 | 2017-07-25 16:47:36 -0400 | [diff] [blame] | 236 | results = m.converting_constructors([1, 2, 3]) |
Dean Moldovan | 4de2710 | 2016-11-16 01:35:22 +0100 | [diff] [blame] | 237 | for a in results.values(): |
| 238 | np.testing.assert_array_equal(a, [1, 2, 3]) |
| 239 | assert results["array"].dtype == np.int_ |
| 240 | assert results["array_t<int32>"].dtype == np.int32 |
| 241 | assert results["array_t<double>"].dtype == np.float64 |
Jason Rhinelander | ee2e5a5 | 2017-02-24 05:33:31 -0500 | [diff] [blame] | 242 | |
| 243 | |
Jason Rhinelander | c44fe6f | 2017-02-26 18:03:00 -0500 | [diff] [blame] | 244 | def test_overload_resolution(msg): |
Jason Rhinelander | c44fe6f | 2017-02-26 18:03:00 -0500 | [diff] [blame] | 245 | # Exact overload matches: |
Jason Rhinelander | 391c754 | 2017-07-25 16:47:36 -0400 | [diff] [blame] | 246 | assert m.overloaded(np.array([1], dtype='float64')) == 'double' |
| 247 | assert m.overloaded(np.array([1], dtype='float32')) == 'float' |
| 248 | assert m.overloaded(np.array([1], dtype='ushort')) == 'unsigned short' |
| 249 | assert m.overloaded(np.array([1], dtype='intc')) == 'int' |
| 250 | assert m.overloaded(np.array([1], dtype='longlong')) == 'long long' |
| 251 | assert m.overloaded(np.array([1], dtype='complex')) == 'double complex' |
| 252 | assert m.overloaded(np.array([1], dtype='csingle')) == 'float complex' |
Jason Rhinelander | c44fe6f | 2017-02-26 18:03:00 -0500 | [diff] [blame] | 253 | |
| 254 | # No exact match, should call first convertible version: |
Jason Rhinelander | 391c754 | 2017-07-25 16:47:36 -0400 | [diff] [blame] | 255 | assert m.overloaded(np.array([1], dtype='uint8')) == 'double' |
Jason Rhinelander | c44fe6f | 2017-02-26 18:03:00 -0500 | [diff] [blame] | 256 | |
Dean Moldovan | 16afbce | 2017-03-13 19:17:18 +0100 | [diff] [blame] | 257 | with pytest.raises(TypeError) as excinfo: |
Jason Rhinelander | 391c754 | 2017-07-25 16:47:36 -0400 | [diff] [blame] | 258 | m.overloaded("not an array") |
Dean Moldovan | 16afbce | 2017-03-13 19:17:18 +0100 | [diff] [blame] | 259 | assert msg(excinfo.value) == """ |
| 260 | overloaded(): incompatible function arguments. The following argument types are supported: |
| 261 | 1. (arg0: numpy.ndarray[float64]) -> str |
| 262 | 2. (arg0: numpy.ndarray[float32]) -> str |
| 263 | 3. (arg0: numpy.ndarray[int32]) -> str |
| 264 | 4. (arg0: numpy.ndarray[uint16]) -> str |
| 265 | 5. (arg0: numpy.ndarray[int64]) -> str |
| 266 | 6. (arg0: numpy.ndarray[complex128]) -> str |
| 267 | 7. (arg0: numpy.ndarray[complex64]) -> str |
| 268 | |
| 269 | Invoked with: 'not an array' |
| 270 | """ |
| 271 | |
Jason Rhinelander | 391c754 | 2017-07-25 16:47:36 -0400 | [diff] [blame] | 272 | assert m.overloaded2(np.array([1], dtype='float64')) == 'double' |
| 273 | assert m.overloaded2(np.array([1], dtype='float32')) == 'float' |
| 274 | assert m.overloaded2(np.array([1], dtype='complex64')) == 'float complex' |
| 275 | assert m.overloaded2(np.array([1], dtype='complex128')) == 'double complex' |
| 276 | assert m.overloaded2(np.array([1], dtype='float32')) == 'float' |
Jason Rhinelander | c44fe6f | 2017-02-26 18:03:00 -0500 | [diff] [blame] | 277 | |
Jason Rhinelander | 391c754 | 2017-07-25 16:47:36 -0400 | [diff] [blame] | 278 | assert m.overloaded3(np.array([1], dtype='float64')) == 'double' |
| 279 | assert m.overloaded3(np.array([1], dtype='intc')) == 'int' |
Jason Rhinelander | c44fe6f | 2017-02-26 18:03:00 -0500 | [diff] [blame] | 280 | expected_exc = """ |
| 281 | overloaded3(): incompatible function arguments. The following argument types are supported: |
Dean Moldovan | 16afbce | 2017-03-13 19:17:18 +0100 | [diff] [blame] | 282 | 1. (arg0: numpy.ndarray[int32]) -> str |
| 283 | 2. (arg0: numpy.ndarray[float64]) -> str |
Jason Rhinelander | c44fe6f | 2017-02-26 18:03:00 -0500 | [diff] [blame] | 284 | |
| 285 | Invoked with:""" |
| 286 | |
| 287 | with pytest.raises(TypeError) as excinfo: |
Jason Rhinelander | 391c754 | 2017-07-25 16:47:36 -0400 | [diff] [blame] | 288 | m.overloaded3(np.array([1], dtype='uintc')) |
Jason Rhinelander | c44fe6f | 2017-02-26 18:03:00 -0500 | [diff] [blame] | 289 | assert msg(excinfo.value) == expected_exc + " array([1], dtype=uint32)" |
| 290 | with pytest.raises(TypeError) as excinfo: |
Jason Rhinelander | 391c754 | 2017-07-25 16:47:36 -0400 | [diff] [blame] | 291 | m.overloaded3(np.array([1], dtype='float32')) |
Jason Rhinelander | c44fe6f | 2017-02-26 18:03:00 -0500 | [diff] [blame] | 292 | assert msg(excinfo.value) == expected_exc + " array([ 1.], dtype=float32)" |
| 293 | with pytest.raises(TypeError) as excinfo: |
Jason Rhinelander | 391c754 | 2017-07-25 16:47:36 -0400 | [diff] [blame] | 294 | m.overloaded3(np.array([1], dtype='complex')) |
Jason Rhinelander | c44fe6f | 2017-02-26 18:03:00 -0500 | [diff] [blame] | 295 | assert msg(excinfo.value) == expected_exc + " array([ 1.+0.j])" |
| 296 | |
| 297 | # Exact matches: |
Jason Rhinelander | 391c754 | 2017-07-25 16:47:36 -0400 | [diff] [blame] | 298 | assert m.overloaded4(np.array([1], dtype='double')) == 'double' |
| 299 | assert m.overloaded4(np.array([1], dtype='longlong')) == 'long long' |
Jason Rhinelander | c44fe6f | 2017-02-26 18:03:00 -0500 | [diff] [blame] | 300 | # Non-exact matches requiring conversion. Since float to integer isn't a |
| 301 | # save conversion, it should go to the double overload, but short can go to |
| 302 | # either (and so should end up on the first-registered, the long long). |
Jason Rhinelander | 391c754 | 2017-07-25 16:47:36 -0400 | [diff] [blame] | 303 | assert m.overloaded4(np.array([1], dtype='float32')) == 'double' |
| 304 | assert m.overloaded4(np.array([1], dtype='short')) == 'long long' |
Jason Rhinelander | c44fe6f | 2017-02-26 18:03:00 -0500 | [diff] [blame] | 305 | |
Jason Rhinelander | 391c754 | 2017-07-25 16:47:36 -0400 | [diff] [blame] | 306 | assert m.overloaded5(np.array([1], dtype='double')) == 'double' |
| 307 | assert m.overloaded5(np.array([1], dtype='uintc')) == 'unsigned int' |
| 308 | assert m.overloaded5(np.array([1], dtype='float32')) == 'unsigned int' |
Jason Rhinelander | c44fe6f | 2017-02-26 18:03:00 -0500 | [diff] [blame] | 309 | |
| 310 | |
Jason Rhinelander | 391c754 | 2017-07-25 16:47:36 -0400 | [diff] [blame] | 311 | def test_greedy_string_overload(): |
| 312 | """Tests fix for #685 - ndarray shouldn't go to std::string overload""" |
Jason Rhinelander | ee2e5a5 | 2017-02-24 05:33:31 -0500 | [diff] [blame] | 313 | |
Jason Rhinelander | 391c754 | 2017-07-25 16:47:36 -0400 | [diff] [blame] | 314 | assert m.issue685("abc") == "string" |
| 315 | assert m.issue685(np.array([97, 98, 99], dtype='b')) == "array" |
| 316 | assert m.issue685(123) == "other" |
Jason Rhinelander | 423a49b | 2017-03-19 01:14:23 -0300 | [diff] [blame] | 317 | |
| 318 | |
Jason Rhinelander | 773339f | 2017-03-20 17:48:38 -0300 | [diff] [blame] | 319 | def test_array_unchecked_fixed_dims(msg): |
Jason Rhinelander | 423a49b | 2017-03-19 01:14:23 -0300 | [diff] [blame] | 320 | z1 = np.array([[1, 2], [3, 4]], dtype='float64') |
Jason Rhinelander | 391c754 | 2017-07-25 16:47:36 -0400 | [diff] [blame] | 321 | m.proxy_add2(z1, 10) |
Jason Rhinelander | 423a49b | 2017-03-19 01:14:23 -0300 | [diff] [blame] | 322 | assert np.all(z1 == [[11, 12], [13, 14]]) |
| 323 | |
| 324 | with pytest.raises(ValueError) as excinfo: |
Jason Rhinelander | 391c754 | 2017-07-25 16:47:36 -0400 | [diff] [blame] | 325 | m.proxy_add2(np.array([1., 2, 3]), 5.0) |
Jason Rhinelander | 423a49b | 2017-03-19 01:14:23 -0300 | [diff] [blame] | 326 | assert msg(excinfo.value) == "array has incorrect number of dimensions: 1; expected 2" |
| 327 | |
| 328 | expect_c = np.ndarray(shape=(3, 3, 3), buffer=np.array(range(3, 30)), dtype='int') |
Jason Rhinelander | 391c754 | 2017-07-25 16:47:36 -0400 | [diff] [blame] | 329 | assert np.all(m.proxy_init3(3.0) == expect_c) |
Jason Rhinelander | 423a49b | 2017-03-19 01:14:23 -0300 | [diff] [blame] | 330 | expect_f = np.transpose(expect_c) |
Jason Rhinelander | 391c754 | 2017-07-25 16:47:36 -0400 | [diff] [blame] | 331 | assert np.all(m.proxy_init3F(3.0) == expect_f) |
Jason Rhinelander | 423a49b | 2017-03-19 01:14:23 -0300 | [diff] [blame] | 332 | |
Jason Rhinelander | 391c754 | 2017-07-25 16:47:36 -0400 | [diff] [blame] | 333 | assert m.proxy_squared_L2_norm(np.array(range(6))) == 55 |
| 334 | assert m.proxy_squared_L2_norm(np.array(range(6), dtype="float64")) == 55 |
Jason Rhinelander | 773339f | 2017-03-20 17:48:38 -0300 | [diff] [blame] | 335 | |
Jason Rhinelander | 391c754 | 2017-07-25 16:47:36 -0400 | [diff] [blame] | 336 | assert m.proxy_auxiliaries2(z1) == [11, 11, True, 2, 8, 2, 2, 4, 32] |
| 337 | assert m.proxy_auxiliaries2(z1) == m.array_auxiliaries2(z1) |
Jason Rhinelander | 773339f | 2017-03-20 17:48:38 -0300 | [diff] [blame] | 338 | |
| 339 | |
| 340 | def test_array_unchecked_dyn_dims(msg): |
Jason Rhinelander | 773339f | 2017-03-20 17:48:38 -0300 | [diff] [blame] | 341 | z1 = np.array([[1, 2], [3, 4]], dtype='float64') |
Jason Rhinelander | 391c754 | 2017-07-25 16:47:36 -0400 | [diff] [blame] | 342 | m.proxy_add2_dyn(z1, 10) |
Jason Rhinelander | 773339f | 2017-03-20 17:48:38 -0300 | [diff] [blame] | 343 | assert np.all(z1 == [[11, 12], [13, 14]]) |
| 344 | |
| 345 | expect_c = np.ndarray(shape=(3, 3, 3), buffer=np.array(range(3, 30)), dtype='int') |
Jason Rhinelander | 391c754 | 2017-07-25 16:47:36 -0400 | [diff] [blame] | 346 | assert np.all(m.proxy_init3_dyn(3.0) == expect_c) |
Jason Rhinelander | 773339f | 2017-03-20 17:48:38 -0300 | [diff] [blame] | 347 | |
Jason Rhinelander | 391c754 | 2017-07-25 16:47:36 -0400 | [diff] [blame] | 348 | assert m.proxy_auxiliaries2_dyn(z1) == [11, 11, True, 2, 8, 2, 2, 4, 32] |
| 349 | assert m.proxy_auxiliaries2_dyn(z1) == m.array_auxiliaries2(z1) |
Jason Rhinelander | 5749b50 | 2017-04-10 11:05:26 -0400 | [diff] [blame] | 350 | |
| 351 | |
| 352 | def test_array_failure(): |
Jason Rhinelander | 5749b50 | 2017-04-10 11:05:26 -0400 | [diff] [blame] | 353 | with pytest.raises(ValueError) as excinfo: |
Jason Rhinelander | 391c754 | 2017-07-25 16:47:36 -0400 | [diff] [blame] | 354 | m.array_fail_test() |
Jason Rhinelander | 5749b50 | 2017-04-10 11:05:26 -0400 | [diff] [blame] | 355 | assert str(excinfo.value) == 'cannot create a pybind11::array from a nullptr' |
| 356 | |
| 357 | with pytest.raises(ValueError) as excinfo: |
Jason Rhinelander | 391c754 | 2017-07-25 16:47:36 -0400 | [diff] [blame] | 358 | m.array_t_fail_test() |
Jason Rhinelander | 5749b50 | 2017-04-10 11:05:26 -0400 | [diff] [blame] | 359 | assert str(excinfo.value) == 'cannot create a pybind11::array_t from a nullptr' |
uentity | 083a021 | 2017-04-13 21:41:55 +0500 | [diff] [blame] | 360 | |
Cris Luengo | 30d43c4 | 2017-04-14 14:33:44 -0600 | [diff] [blame] | 361 | with pytest.raises(ValueError) as excinfo: |
Jason Rhinelander | 391c754 | 2017-07-25 16:47:36 -0400 | [diff] [blame] | 362 | m.array_fail_test_negative_size() |
Cris Luengo | 30d43c4 | 2017-04-14 14:33:44 -0600 | [diff] [blame] | 363 | assert str(excinfo.value) == 'negative dimensions are not allowed' |
| 364 | |
uentity | 083a021 | 2017-04-13 21:41:55 +0500 | [diff] [blame] | 365 | |
Jason Rhinelander | 391c754 | 2017-07-25 16:47:36 -0400 | [diff] [blame] | 366 | def test_initializer_list(): |
| 367 | assert m.array_initializer_list1().shape == (1,) |
| 368 | assert m.array_initializer_list2().shape == (1, 2) |
| 369 | assert m.array_initializer_list3().shape == (1, 2, 3) |
| 370 | assert m.array_initializer_list4().shape == (1, 2, 3, 4) |
uentity | 083a021 | 2017-04-13 21:41:55 +0500 | [diff] [blame] | 371 | |
Jason Rhinelander | 391c754 | 2017-07-25 16:47:36 -0400 | [diff] [blame] | 372 | |
| 373 | def test_array_resize(msg): |
uentity | 083a021 | 2017-04-13 21:41:55 +0500 | [diff] [blame] | 374 | a = np.array([1, 2, 3, 4, 5, 6, 7, 8, 9], dtype='float64') |
Jason Rhinelander | 391c754 | 2017-07-25 16:47:36 -0400 | [diff] [blame] | 375 | m.array_reshape2(a) |
uentity | 083a021 | 2017-04-13 21:41:55 +0500 | [diff] [blame] | 376 | assert(a.size == 9) |
| 377 | assert(np.all(a == [[1, 2, 3], [4, 5, 6], [7, 8, 9]])) |
| 378 | |
| 379 | # total size change should succced with refcheck off |
Jason Rhinelander | 391c754 | 2017-07-25 16:47:36 -0400 | [diff] [blame] | 380 | m.array_resize3(a, 4, False) |
uentity | 083a021 | 2017-04-13 21:41:55 +0500 | [diff] [blame] | 381 | assert(a.size == 64) |
| 382 | # ... and fail with refcheck on |
| 383 | try: |
Jason Rhinelander | 391c754 | 2017-07-25 16:47:36 -0400 | [diff] [blame] | 384 | m.array_resize3(a, 3, True) |
uentity | 083a021 | 2017-04-13 21:41:55 +0500 | [diff] [blame] | 385 | except ValueError as e: |
| 386 | assert(str(e).startswith("cannot resize an array")) |
| 387 | # transposed array doesn't own data |
| 388 | b = a.transpose() |
| 389 | try: |
Jason Rhinelander | 391c754 | 2017-07-25 16:47:36 -0400 | [diff] [blame] | 390 | m.array_resize3(b, 3, False) |
uentity | 083a021 | 2017-04-13 21:41:55 +0500 | [diff] [blame] | 391 | except ValueError as e: |
| 392 | assert(str(e).startswith("cannot resize this array: it does not own its data")) |
| 393 | # ... but reshape should be fine |
Jason Rhinelander | 391c754 | 2017-07-25 16:47:36 -0400 | [diff] [blame] | 394 | m.array_reshape2(b) |
uentity | 083a021 | 2017-04-13 21:41:55 +0500 | [diff] [blame] | 395 | assert(b.shape == (8, 8)) |
| 396 | |
| 397 | |
| 398 | @pytest.unsupported_on_pypy |
| 399 | def test_array_create_and_resize(msg): |
Jason Rhinelander | 391c754 | 2017-07-25 16:47:36 -0400 | [diff] [blame] | 400 | a = m.create_and_resize(2) |
uentity | 083a021 | 2017-04-13 21:41:55 +0500 | [diff] [blame] | 401 | assert(a.size == 4) |
| 402 | assert(np.all(a == 42.)) |