/usr/lib/python3/dist-packages/h5py/tests/old/test_selections.py is in python3-h5py 2.6.0-1.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 | # This file is part of h5py, a Python interface to the HDF5 library.
#
# http://www.h5py.org
#
# Copyright 2008-2013 Andrew Collette and contributors
#
# License: Standard 3-clause BSD; see "license.txt" for full license terms
# and contributor agreement.
"""
Tests for the (internal) selections module
"""
from __future__ import absolute_import
import numpy as np
import h5py
import h5py._hl.selections2 as sel
from .common import TestCase, ut
class TestTypeGeneration(TestCase):
"""
Internal feature: Determine output types from dataset dtype and fields.
"""
def test_simple(self):
""" Non-compound types are handled appropriately """
dt = np.dtype('i')
out, format = sel.read_dtypes(dt, ())
self.assertEqual(out, format)
self.assertEqual(out, np.dtype('i'))
def test_simple_fieldexc(self):
""" Field names for non-field types raises ValueError """
dt = np.dtype('i')
with self.assertRaises(ValueError):
out, format = sel.read_dtypes(dt, ('a',))
def test_compound_simple(self):
""" Compound types with elemental subtypes """
dt = np.dtype( [('a','i'), ('b','f'), ('c','|S10')] )
# Implicit selection of all fields -> all fields
out, format = sel.read_dtypes(dt, ())
self.assertEqual(out, format)
self.assertEqual(out, dt)
# Explicit selection of fields -> requested fields
out, format = sel.read_dtypes(dt, ('a','b'))
self.assertEqual(out, format)
self.assertEqual(out, np.dtype( [('a','i'), ('b','f')] ))
# Explicit selection of exactly one field -> no fields
out, format = sel.read_dtypes(dt, ('a',))
self.assertEqual(out, np.dtype('i'))
self.assertEqual(format, np.dtype( [('a','i')] ))
class TestScalarSliceRules(TestCase):
"""
Internal feature: selections rules for scalar datasets
"""
def setUp(self):
self.f = h5py.File(self.mktemp(), 'w')
self.dsid = self.f.create_dataset('x', ()).id
def tearDown(self):
if self.f:
self.f.close()
def test_args(self):
""" Permissible arguments for scalar slicing """
shape, selection = sel.read_selections_scalar(self.dsid, ())
self.assertEqual(shape, None)
self.assertEqual(selection.get_select_npoints(), 1)
shape, selection = sel.read_selections_scalar(self.dsid, (Ellipsis,))
self.assertEqual(shape, ())
self.assertEqual(selection.get_select_npoints(), 1)
with self.assertRaises(ValueError):
shape, selection = sel.read_selections_scalar(self.dsid, (1,))
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