def getUCD(tab):
"""Returns a list with all (valid) UCDs from a table"""
from astropy.io.votable import ucd
l1 = []
for f in tab.fields():
if not f.ucd:
continue
if not ucd.check_ucd(f.ucd):
continue
l2 = []
for u in ucd.parse_ucd(f.ucd):
_u = str(u[1])
if not _u in l1:
l2.append(_u)
l1.extend(l2)
return l1
def test_none():
assert ucd.check_ucd(None)
def test_check():
for s, p in examples.items():
assert ucd.parse_ucd(s, True, True) == p
assert ucd.check_ucd(s, True, True)