def test_extract_header_nowcs():
header = fits.Header.fromstring(_base_header, sep='\n')
h, wcs = extract_header_wcs(header)
check.is_none(wcs)
check.is_instance(h, fits.Header)
check.equal(h, header)
check.is_false(h is header)
def test_extract_header_nowcs(self):
header = fits.Header.fromstring(_base_header, sep='\n')
h, wcs = extract_header_wcs(header)
assert_is_none(wcs)
assert_is_instance(h, fits.Header)
assert_equal(h, header)
assert_false(h is header)
def test_extract_invalid_wcs_header():
# It should no raise, just return empty wcs
# No header change too
header = fits.Header.fromstring(_base_header + _invalid_wcs, sep='\n')
h, wcs = extract_header_wcs(header)
check.is_none(wcs)
check.is_instance(h, fits.Header)
check.equal(h, header)
check.is_false(h is header)
def test_extract_invalid_wcs_header(self):
# It should no raise, just return empty wcs
# No header change too
header = fits.Header.fromstring(_base_header + _invalid_wcs, sep='\n')
del header['']
h, wcs = extract_header_wcs(header)
assert_is_none(wcs)
assert_is_instance(h, fits.Header)
assert_equal(h, header)
assert_false(h is header)
def test_extract_header_nosip():
header = fits.Header.fromstring(_base_header + _wcs_no_sip, sep='\n')
h, wcs = extract_header_wcs(header)
check.is_instance(wcs, WCS)
check.equal(wcs.wcs.ctype[0], 'RA---TAN')
check.equal(wcs.wcs.ctype[1], 'DEC--TAN')
check.is_instance(h, fits.Header)
for i in _comon_wcs_keys:
check.is_not_in(f'{i}1', h.keys())
check.is_not_in(f'{i}2', h.keys())
check.is_in('DATE-OBS', h.keys())
check.is_false(h is header)
check.not_equal(h, header)
def test_extract_header_sip(self):
header = fits.Header.fromstring(_base_header + _wcs_sip, sep='\n')
h, wcs = extract_header_wcs(header)
assert_is_instance(wcs, WCS)
assert_equal(wcs.wcs.ctype[0], 'RA---TAN-SIP')
assert_equal(wcs.wcs.ctype[1], 'DEC--TAN-SIP')
assert_is_instance(h, fits.Header)
for i in _comon_wcs_keys:
assert_not_in(f'{i}1', h.keys())
assert_not_in(f'{i}2', h.keys())
for i in ('A_0_2', 'AP_2_0', 'BP_ORDER', 'A_DMAX'):
assert_not_in(i, h.keys())
assert_in('DATE-OBS', h.keys())
assert_false(h is header)
assert_not_equal(h, header)
