def compare(self, in_, out_):
"""Read file1, write file2, then compare. Return value as for files_identical"""
dataset = read_file(in_)
write_file(out_, dataset)
same, pos = files_identical(in_, out_)
self.assert_(same, "Files are not identical - first difference at 0x%x" % pos)
if os.path.exists(out_):
os.remove(out_) # get rid of the file
def compare_write(self, hex_std, file_ds):
"""Write file and compare with expected byte string
:arg hex_std: the bytes which should be written, as space separated hex
:arg file_ds: a FileDataset instance containing the dataset to write
"""
out_filename = "scratch.dcm"
write_file(out_filename, file_ds)
std = hex2bytes(hex_std)
bytes_written = open(out_filename,'rb').read()
# print "std :", bytes2hex(std)
# print "written:", bytes2hex(bytes_written)
same, pos = bytes_identical(std, bytes_written)
self.assert_(same, "Writing from scratch not expected result - first difference at 0x%x" % pos)
if os.path.exists(out_filename):
os.remove(out_filename) # get rid of the file