'Regression test for https://aeon.stsci.edu/ssb/trac/pyfits/ticket/194
Test that a blank keyword (\'\') can be assigned a too-long value that is
continued across multiple cards with blank keywords, just like COMMENT
and HISTORY cards.'

def test_blank_keyword_long_value(self):

    value = ('long    string    value    ' * 10)
    header = fits.Header()
    header[''] = value
    assert (len(header) == 3)
    assert ('    '.join(header['']) == value.rstrip())
    header['COMMENT'] = value
    header['HISTORY'] = value
    assert (header['COMMENT'] == header['HISTORY'])
    assert (header['COMMENT'] == header[''])
