add backwards compat

Author: ChrisRackauckas

lib/SCCNonlinearSolve/src/SCCNonlinearSolve.jl

@@ -27,6 +27,10 @@ function CommonSolve.solve(prob::SciMLBase.SCCNonlinearProblem; kwargs...)
     CommonSolve.solve(prob, SCCAlg(nothing, nothing); kwargs...)
 end
 
+function CommonSolve.solve(prob::SciMLBase.SCCNonlinearProblem, alg::AbstractNonlinearAlgorithm; kwargs...)
+    CommonSolve.solve(prob, SCCAlg(alg, nothing); kwargs...)
+end
+
 probvec(prob::Union{NonlinearProblem, NonlinearLeastSquaresProblem}) = prob.u0
 probvec(prob::LinearProblem) = prob.b
 

lib/SCCNonlinearSolve/test/core_tests.jl

@@ -65,6 +65,10 @@ end
     scc_sol=solve(sccprob, scc_alg)
     @test sol ≈ manualscc ≈ scc_sol
 
+    # Backwards compat of alg choice
+    scc_sol=solve(sccprob, NewtonRaphson())
+    @test sol ≈ manualscc ≈ scc_sol
+
     import NonlinearSolve # Required for Default
 
     # Test default interface