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"""@package nxs
Python NeXus interface.
NeXus_ is a common data format for neutron, Xray and muon science.
The files contain multidimensional data elements grouped into a
hierarchical structure. The data sets are self-describing, with
a description of the instrument configuration including the units
used as well as the data measured.
The NeXus file interface requires compiled libraries to read the
underlying HDF_ files. Binary packages are available for some
platforms from the NeXus site. Details of where the nxs package
searches for the libraries are recorded in `nxs.napi`.
"""
import unittest
import nxs.napi as napi
class test_constants(unittest.TestCase):
"""
Testing constants exported by nxs.
"""
def test_scalar_constants(self):
self.assertEqual(napi.NOSTRIP,128)
self.assertEqual(napi.UNLIMITED,-1)
self.assertEqual(napi.MAXRANK,32)
self.assertEqual(napi.MAXNAMELEN,64)
self.assertEqual(napi.MAXPATHLEN,1024)
def test_type_codes(self):
d_expected = {"char":4,"float32":5,"float64":6,
"int8":20,"uint8":21,"int16":22,"uint16":23,
"int32":24,"uint32":25,"int64":26,"uint64":27}
self.assertDictEqual(napi._nxtype_code,d_expected)
def test_open_modes(self):
dr = {"r":1,"rw":2,"w":3,"w4":4,"w5":5,"wx":6}
self.assertDictEqual(napi._nxopen_mode,dr)
def test_compression_code(self):
d_expected = {"none":100,"lzw":200,"rle":300,"huffman":400}
self.assertDictEqual(napi._compression_code,d_expected)
def test_h4skip(self):
l_expected = ['CDF0.0','_HDF_CHK_TBL_','Attr0.0','RIG0.0','RI0.0',
'RIATTR0.0N','RIATTR0.0C']
self.assertListEqual(napi.H4SKIP,l_expected)
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