def validate_schema(filename, schema_file):
"""
Validates an XML file against a schema or DTD.
Parameters
----------
filename : str
The path to the XML file to validate
schema_file : str
The path to the XML schema or DTD
Returns
-------
returncode, stdout, stderr : int, str, str
Returns the returncode from xmllint and the stdout and stderr
as strings
"""
base, ext = os.path.splitext(schema_file)
if ext == '.xsd':
schema_part = '--schema ' + schema_file
elif ext == '.dtd':
schema_part = '--dtdvalid ' + schema_file
else:
raise TypeError("schema_file must be a path to an XML Schema or DTD")
p = subprocess.Popen("xmllint --noout --nonet {} {}".format(
schema_part, filename),
shell=True,
stdout=subprocess.PIPE,
stderr=subprocess.PIPE)
stdout, stderr = p.communicate()
if p.returncode == 127:
raise OSError("xmllint not found, so can not validate schema")
elif p.returncode < 0:
from astropy.utils.misc import signal_number_to_name
raise OSError("xmllint was terminated by signal '{0}'".format(
signal_number_to_name(-p.returncode)))
return p.returncode, stdout, stderr
def test_signal_number_to_name_no_failure():
# Regression test for #5340: ensure signal_number_to_name throws no
# AttributeError (it used ".iteritems()" which was removed in Python3).
misc.signal_number_to_name(0)
def test_signal_number_to_name_no_failure():
# Regression test for #5340: ensure signal_number_to_name throws no
# AttributeError (it used ".iteritems()" which was removed in Python3).
misc.signal_number_to_name(0)