diff --git a/test/dirac/test_fp_fa.jl b/test/dirac/test_fp_fa.jl
new file mode 100644
index 0000000..ee931ae
--- /dev/null
+++ b/test/dirac/test_fp_fa.jl
@@ -0,0 +1,125 @@
+using LatticeGPU
+using CUDA
+using TimerOutputs
+
+
+@timeit "fA_fP test" begin
+
+
+function fP_test(;theta = (0.5,0.7,1.0,0.0), m = 1.3, size = (8,8,8,16),prec = 1.0e-16)
+
+@timeit "fP inversion (x12)" begin
+
+lp = SpaceParm{4}(size,(4,4,4,4),1,(0,0,0,0,0,0));
+exptheta = exp.(im.*theta./lp.iL);
+
+dpar = DiracParam{Float64}(SU3fund,m,0.0,exptheta,1.0);
+dws = DiracWorkspace(SU3fund{Float64},Float64,lp);
+
+U = fill!(vector_field(SU3{Float64},lp),one(SU3{Float64}));
+psi = scalar_field(Spinor{4,SU3fund{Float64}},lp);
+
+res = zeros(lp.iL[4])
+
+for s in 1:4 for c in 1:3
+    bndpropagator!(psi,U,dpar,dws,lp,1000,prec,c,s);
+
+    for t in 1:lp.iL[4]
+    #for i in 1:lp.iL[1]    for j in 1:lp.iL[2]        for k in 1:lp.iL[3]
+                i=abs(rand(Int))%lp.iL[1] +1;j=abs(rand(Int))%lp.iL[2] +1;k=abs(rand(Int))%lp.iL[3] +1;
+                CUDA.@allowscalar (res[t] += norm2(psi[point_index(CartesianIndex{lp.ndim}((i,j,k,t)),lp)...])/2)
+    #end end end
+    #res[t] = res[t]/(lp.iL[1]*lp.iL[2]*lp.iL[3])
+
+    end
+
+end end
+
+end
+
+@timeit "fP analitical solution" begin
+
+    #THEORETICAL SOLUTION: hep-lat/9606016 eq (2.33)
+
+    res_th = zeros(lp.iL[4])
+
+    pp3 = ntuple(i -> theta[i]/lp.iL[i],3)
+    omega = 2 * asinh(0.5* sqrt(( sum((sin.(pp3)).^2) + (m + 2*(sum((sin.(pp3./2)).^2) ))^2) / (1+m+2*(sum((sin.(pp3./2)).^2) )) ) )
+    pp = (-im*omega,pp3...)
+    Mpp = m + 2* sum((sin.(pp./2)).^2)
+    Rpp = Mpp*(1-exp(-2*omega*lp.iL[4])) + sinh(omega) * (1+exp(-2*omega*lp.iL[4]))
+
+    for i in 2:lp.iL[4]
+        res_th[i] = (2*3*sinh(omega)/(Rpp^2)) * ( (Mpp + sinh(omega))*exp(-2*omega*(i-1)) - (Mpp - sinh(omega))*exp(-2*omega*(2*lp.iL[4]- (i - 1))) )
+    end
+
+end
+    return sum(abs.(res-res_th))
+
+end
+
+function fA_test(;theta = (0.5,0.7,1.0,0.0), m = 1.3, size = (8,8,8,16),prec = 1.0e-16)
+
+@timeit "fA inversion (x12)" begin
+
+    lp = SpaceParm{4}(size,(4,4,4,4),1,(0,0,0,0,0,0));
+    exptheta = exp.(im.*theta./lp.iL);
+    
+    dpar = DiracParam{Float64}(SU3fund,m,0.0,exptheta,1.0);
+    dws = DiracWorkspace(SU3fund{Float64},Float64,lp);
+    
+    U = fill!(vector_field(SU3{Float64},lp),one(SU3{Float64}));
+    psi = scalar_field(Spinor{4,SU3fund{Float64}},lp);
+    
+    res = im*zeros(lp.iL[4])
+    
+    for s in 1:4 for c in 1:3
+        bndpropagator!(psi,U,dpar,dws,lp,1000,prec,c,s);
+    
+        for t in 1:lp.iL[4]
+        #for i in 1:lp.iL[1]    for j in 1:lp.iL[2]        for k in 1:lp.iL[3]
+                    i=abs(rand(Int))%lp.iL[1] +1;j=abs(rand(Int))%lp.iL[2] +1;k=abs(rand(Int))%lp.iL[3] +1;
+                    CUDA.@allowscalar (res[t] += -dot(psi[point_index(CartesianIndex{lp.ndim}((i,j,k,t)),lp)...],dmul(Gamma{4},psi[point_index(CartesianIndex{lp.ndim}((i,j,k,t)),lp)...]))/2)
+        #end end end
+        #res[t] = res[t]/(lp.iL[1]*lp.iL[2]*lp.iL[3])
+    
+        end
+    
+    end end
+    
+end
+    #THEORETICAL SOLUTION: hep-lat/9606016 eq (2.32)
+   
+@timeit "fA analitical solution" begin
+    res_th = zeros(lp.iL[4])
+    
+    pp3 = ntuple(i -> theta[i]/lp.iL[i],3)
+    omega = 2 * asinh(0.5* sqrt(( sum((sin.(pp3)).^2) + (m + 2*(sum((sin.(pp3./2)).^2) ))^2) / (1+m+2*(sum((sin.(pp3./2)).^2) )) ) )
+    pp = (-im*omega,pp3...)
+    Mpp = m + 2* sum((sin.(pp./2)).^2)
+    Rpp = Mpp*(1-exp(-2*omega*lp.iL[4])) + sinh(omega) * (1+exp(-2*omega*lp.iL[4]))
+    
+    for i in 2:lp.iL[4]
+        res_th[i] = (6/(Rpp^2)) * ( 2*(Mpp - sinh(omega))*(Mpp + sinh(omega))*exp(-2*omega*lp.iL[4]) 
+        - Mpp*((Mpp + sinh(omega))*exp(-2*omega*(i-1)) + (Mpp - sinh(omega))*exp(-2*omega*(2*lp.iL[4]- (i - 1)))))
+    end
+    
+end
+    
+    return sum(abs.(res-res_th))
+    
+end
+
+
+difA = fA_test();
+difP = fP_test();
+
+if difA > 1.0e-15 
+    error("fA test failed with error ", difA)
+elseif difP > 1.0e-15
+    error("fP test failed with error ", difP)
+else
+    print("fA & fP tests passed with errors: ", difA," and ",difP,"!\n")
+end
+
+end