diff options
Diffstat (limited to 'numpy/lib/tests/test_io.py')
| -rw-r--r-- | numpy/lib/tests/test_io.py | 40 |
1 files changed, 36 insertions, 4 deletions
diff --git a/numpy/lib/tests/test_io.py b/numpy/lib/tests/test_io.py index 08800ff97..7ef25538b 100644 --- a/numpy/lib/tests/test_io.py +++ b/numpy/lib/tests/test_io.py @@ -6,7 +6,6 @@ import os import threading import time import warnings -import gc import io import re import pytest @@ -18,7 +17,7 @@ import locale import numpy as np import numpy.ma as ma from numpy.lib._iotools import ConverterError, ConversionWarning -from numpy.compat import asbytes, bytes, unicode, Path +from numpy.compat import asbytes, bytes, Path from numpy.ma.testutils import assert_equal from numpy.testing import ( assert_warns, assert_, assert_raises_regex, assert_raises, @@ -355,6 +354,16 @@ class TestSaveTxt(object): c.seek(0) assert_equal(c.readlines(), [b'1 2\n', b'3 4\n']) + @pytest.mark.skipif(Path is None, reason="No pathlib.Path") + def test_multifield_view(self): + a = np.ones(1, dtype=[('x', 'i4'), ('y', 'i4'), ('z', 'f4')]) + v = a[['x', 'z']] + with temppath(suffix='.npy') as path: + path = Path(path) + np.save(path, v) + data = np.load(path) + assert_array_equal(data, v) + def test_delimiter(self): a = np.array([[1., 2.], [3., 4.]]) c = BytesIO() @@ -2049,7 +2058,6 @@ M 33 21.99 def test_utf8_file(self): utf8 = b"\xcf\x96" - latin1 = b"\xf6\xfc\xf6" with temppath() as path: with open(path, "wb") as f: f.write((b"test1,testNonethe" + utf8 + b",test3\n") * 2) @@ -2295,11 +2303,35 @@ class TestPathUsage(object): assert_array_equal(x, a) def test_save_load(self): - # Test that pathlib.Path instances can be used with savez. + # Test that pathlib.Path instances can be used with save. + with temppath(suffix='.npy') as path: + path = Path(path) + a = np.array([[1, 2], [3, 4]], int) + np.save(path, a) + data = np.load(path) + assert_array_equal(data, a) + + def test_save_load_memmap(self): + # Test that pathlib.Path instances can be loaded mem-mapped. + with temppath(suffix='.npy') as path: + path = Path(path) + a = np.array([[1, 2], [3, 4]], int) + np.save(path, a) + data = np.load(path, mmap_mode='r') + assert_array_equal(data, a) + # close the mem-mapped file + del data + + def test_save_load_memmap_readwrite(self): + # Test that pathlib.Path instances can be written mem-mapped. with temppath(suffix='.npy') as path: path = Path(path) a = np.array([[1, 2], [3, 4]], int) np.save(path, a) + b = np.load(path, mmap_mode='r+') + a[0][0] = 5 + b[0][0] = 5 + del b # closes the file data = np.load(path) assert_array_equal(data, a) |