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#! Test of SFX2C-1e on water uncontracted cc-pVDZ-DK
#! The reference numbers are from Lan Cheng's implementation in Cfour

ref_nuc_energy =  8.316179709840201 #TEST
scf_ref_nr_energy  = -76.00770336258013 #TEST 
scf_ref_rel_energy = -76.059287839660001 #TEST
ccsd_ref_nr_energy =  -76.280731819537309  #TEST
ccsd_ref_rel_energy = -76.332592039115724  #TEST

molecule h2o {
O
H 1 R
H 1 R 2 A

R = 2.0
A = 104.5
units bohr
}

set {
  scf_type pk
}

basis adecon {
spherical
****
H     0
S   1   1.00
     13.0100000              1.0000000
S   1   1.00
      1.9620000              1.0000000
S   1   1.00
      0.4446000              1.0000000
S   1   1.00
      0.1220000              1.0000000
P   1   1.00
      0.7270000              1.0000000
****
O     0
S   1   1.00
  11720.0000000              1.0000000
S   1   1.00
   1759.0000000              1.0000000
S   1   1.00
    400.8000000              1.0000000
S   1   1.00
    113.7000000              1.0000000
S   1   1.00
     37.0300000              1.0000000
S   1   1.00
     13.2700000              1.0000000
S   1   1.00
      5.0250000              1.0000000
S   1   1.00
      1.0130000              1.0000000
S   1   1.00
      0.3023000              1.0000000
P   1   1.00
     17.7000000              1.0000000
P   1   1.00
      3.8540000              1.0000000
P   1   1.00
      1.0460000              1.0000000
P   1   1.00
      0.2753000              1.0000000
D   1   1.00
      1.1850000              1.0000000
****
}

ccsd_nr_energy = energy('ccsd')
scf_nr_energy = psi4.get_variable("HF TOTAL ENERGY")
set relativistic x2c
set basis_relativistic adecon  # shouldn't need to specify
ccsd_rel_energy = energy('ccsd')
scf_rel_energy = psi4.get_variable("HF TOTAL ENERGY")

compare_values(ref_nuc_energy, h2o.nuclear_repulsion_energy(), 9, "Nuclear repulsion energy") #TEST
compare_values(scf_ref_nr_energy, scf_nr_energy, 9, "Non-relativistic SCF energy")            #TEST
compare_values(ccsd_ref_nr_energy, ccsd_nr_energy, 9, "Non-relativistic CCSD energy")         #TEST
compare_values(scf_ref_rel_energy, scf_rel_energy, 9, "X2C relativistic SCF energy")          #TEST
compare_values(ccsd_ref_rel_energy, ccsd_rel_energy, 9, "X2C relativistic CCSD energy")       #TEST