def test_warn_nan():
# Check that a NaN value raises a warning and not an error
with pytest.warns(SunpyUserWarning, match='has a NaN value'):
fits = header_to_fits({'bad': float('nan'),
'good': 1.0})
assert 'GOOD' in fits.keys()
assert 'BAD' not in fits.keys()
def test_warn_longkey():
# Check that a key that is too long raises a warning and not an error
with pytest.warns(SunpyUserWarning,
match='The meta key badlongkey is too long'):
fits = header_to_fits({'badlongkey': 'test', 'goodkey': 'test'})
assert 'GOODKEY' in fits.keys()
assert 'BADLONGKEY' not in fits.keys()
def test_warn_nonascii():
# Check that a non-ascii character raises a warning and not an error
with pytest.warns(SunpyUserWarning, match='not valid ascii'):
fits = header_to_fits({'bad': 'test\t',
'good': 'test'})
assert 'GOOD' in fits.keys()
assert 'BAD' not in fits.keys()