test: update tests to MTKv10

Author: AayushSabharwal

test/downstream/symbol_indexing.jl

@@ -7,10 +7,9 @@ include("../testutils.jl")
 @variables x(t)
 @parameters τ
 @variables RHS(t)
-@mtkbuild fol_separate = ODESystem([RHS ~ (1 - x) / τ,
-        D(x) ~ RHS], t)
+@mtkbuild fol_separate = System([RHS ~ (1 - x) / τ, D(x) ~ RHS], t)
 
-prob = ODEProblem(fol_separate, [x => 0.0], (0.0, 10.0), [τ => 3.0])
+prob = ODEProblem(fol_separate, [x => 0.0, τ => 3.0], (0.0, 10.0))
 sol = solve(prob, Tsit5())
 
 sol_new = DiffEqArray(sol.u[1:10],
@@ -50,11 +49,10 @@ test_tables_interface(sol_new, [:timestamp, Symbol("x(t)")], hcat(sol_new[t], so
 # Two components
 @variables y(t)
 @parameters α β γ δ
-@mtkbuild lv = ODESystem([D(x) ~ α * x - β * x * y,
+@mtkbuild lv = System([D(x) ~ α * x - β * x * y,
         D(y) ~ δ * x * y - γ * x * y], t)
 
-prob = ODEProblem(lv, [x => 1.0, y => 1.0], (0.0, 10.0),
-    [α => 1.5, β => 1.0, γ => 3.0, δ => 1.0])
+prob = ODEProblem(lv, [x => 1.0, y => 1.0, α => 1.5, β => 1.0, γ => 3.0, δ => 1.0], (0.0, 10.0))
 sol = solve(prob, Tsit5())
 
 ts = 0:0.5:10