Tests

Author: YingboMa

test/odesystem.jl

@@ -387,3 +387,18 @@ let
     sys = ODESystem(D.(x) .~ x)
     @test_nowarn structural_simplify(sys)
 end
+
+using Symbolics: unwrap
+using LinearAlgebra
+@variables t
+sts = @variables x[1:3](t) y(t)
+ps = @parameters p[1:3]
+D = Differential(t)
+eqs = [
+       collect(D(x) ~ x)
+       D(y) ~ norm(x)*y
+      ]
+sys = ODESystem(eqs, t, [sts...;], [ps...;])
+@test isequal(@nonamespace(sys.x), unwrap(x))
+@test isequal(@nonamespace(sys.y), unwrap(y))
+@test isequal(@nonamespace(sys.p), unwrap(p))