add includes

Author: ChrisRackauckas

src/ModelingToolkit.jl

@@ -93,5 +93,6 @@ include("domains.jl")
 include("systems/diffeqs/diffeqsystem.jl")
 include("systems/diffeqs/first_order_transform.jl")
 include("systems/nonlinear/nonlinear_system.jl")
+include("systems/pde/pdesystem.jl")
 
 end # module

test/runtests.jl

@@ -5,4 +5,7 @@ using ModelingToolkit, Test
 @testset "Simplify Test" begin include("simplify.jl") end
 @testset "Direct Usage Test" begin include("direct.jl") end
 @testset "System Construction Test" begin include("system_construction.jl") end
+@testset "Domain Test" begin include("domains.jl") end
+@testset "Constraints Test" begin include("constraints.jl") end
+@testset "PDE Construction Test" begin include("pde.jl") end
 @testset "Distributed Test" begin include("distributed.jl") end