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TEST - added fairly comprehensive test method for structarr names #62

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TEST - added fairly comprehensive test method for structarr names #62

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45 changes: 44 additions & 1 deletion numpy/core/tests/test_multiarray.py
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Original file line number Diff line number Diff line change
Expand Up @@ -3,6 +3,7 @@
import os
import numpy as np
from numpy.testing import *
from nose import SkipTest
from numpy.core import *
from numpy.core.multiarray_tests import test_neighborhood_iterator, test_neighborhood_iterator_oob

Expand Down Expand Up @@ -369,7 +370,6 @@ def test_subarray_field_access(self):
assert_equal(a['a'].shape, b['a'].shape)
assert_equal(a.T['a'].shape, a.T.copy()['a'].shape)


def test_subarray_comparison(self):
# Check that comparisons between record arrays with
# multi-dimensional field types work properly
Expand Down Expand Up @@ -1422,6 +1422,49 @@ def test_unicode_field_names(self):
assert_raises(TypeError, np.dtype, [(title, int)])
assert_raises(TypeError, np.dtype, [(('a', title), int)])

def test_field_names(self):
# Test unicode and 8-bit / byte strings can be used
a = np.zeros((1,), dtype=[('f1', 'i4'),
('f2', [('sf1', 'i4')])])
is_py3 = sys.version_info[0] >= 3
if is_py3:
funcs = (str,)
# byte string indexing fails gracefully
assert_raises(ValueError, a.__setitem__, asbytes('f1'), 1)
assert_raises(ValueError, a.__getitem__, asbytes('f1'))
assert_raises(ValueError, a['f1'].__setitem__, asbytes('sf1'), 1)
assert_raises(ValueError, a['f1'].__getitem__, asbytes('sf1'))
else:
funcs = (str, unicode)
for func in funcs:
b = a.copy()
fn1 = func('f1')
b[fn1] = 1
assert_equal(b[fn1], 1)
fnn = func('not at all')
assert_raises(ValueError, b.__setitem__, fnn, 1)
assert_raises(ValueError, b.__getitem__, fnn)
b[0][fn1] = 2
assert_equal(b[fn1], 2)
# Subfield
assert_raises(IndexError, b[0].__setitem__, fnn, 1)
assert_raises(IndexError, b[0].__getitem__, fnn)
# Subfield
fn2 = func('f2')
sfn1 = func('sf1')
b[fn2][sfn1] = 1
assert_equal(b[fn2][sfn1], 1)
assert_raises(ValueError, b[fn2].__setitem__, fnn, 1)
assert_raises(ValueError, b[fn2].__getitem__, fnn)
# non-ascii unicode field indexing is well behaved
if not is_py3:
raise SkipTest('non ascii unicode field indexing skipped; '
'raises segfault on python 2.x')
else:
assert_raises(ValueError, a.__setitem__, u'\u03e0', 1)
assert_raises(ValueError, a.__getitem__, u'\u03e0')


class TestView(TestCase):
def test_basic(self):
x = np.array([(1,2,3,4),(5,6,7,8)],dtype=[('r',np.int8),('g',np.int8),
Expand Down