From aa21b7fbcf9cfbd97f0948ad55c837c0a8df5f5e Mon Sep 17 00:00:00 2001
From: patrickersing <patrick.ersing@liu.se>
Date: Mon, 15 Jan 2024 09:33:52 +0100
Subject: [PATCH] add upstream tests

---
 test/runtests.jl      |  3 +++
 test/test_upstream.jl | 51 +++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 54 insertions(+)
 create mode 100644 test/test_upstream.jl

diff --git a/test/runtests.jl b/test/runtests.jl
index 0da42f1..8a0e590 100644
--- a/test/runtests.jl
+++ b/test/runtests.jl
@@ -23,5 +23,8 @@ const TRIXI_NTHREADS = clamp(Sys.CPU_THREADS, 2, 3)
                 @test !(name in names(TrixiShallowWater))
             end
         end
+        
+        # Run upstream tests for each mesh and dimension to test compatibility with Trixi.jl
+        include("test_upstream.jl")       
     end
 end
diff --git a/test/test_upstream.jl b/test/test_upstream.jl
new file mode 100644
index 0000000..56c9850
--- /dev/null
+++ b/test/test_upstream.jl
@@ -0,0 +1,51 @@
+module TestExamplesUpstream
+
+using Test
+using TrixiShallowWater
+
+include("test_trixi.jl")
+
+EXAMPLES_DIR = pkgdir(TrixiShallowWater, "examples")
+
+# Start with a clean environment: remove output directory if it exists
+outdir = "out"
+isdir(outdir) && rm(outdir, recursive = true)
+
+# Run upstream tests for each mesh and dimension to test compatibility with Trixi.jl
+@testset "Upstream tests" begin
+#! format: noindent
+
+# Run tests for TreeMesh
+@testset "TreeMesh" begin
+    # Shallow water wet/dry 1D
+    @trixi_testset "1D-Test: elixir_shallowwater_well_balanced_nonperiodic.jl with wall boundary" begin
+        @test_trixi_include(joinpath(EXAMPLES_DIR, "tree_1d_dgsem",
+                                    "elixir_shallowwater_well_balanced_nonperiodic.jl"),
+                            l2=[
+                                1.7259643614361866e-8,
+                                3.5519018243195145e-16,
+                                1.7259643530442137e-8,
+                            ],
+                            linf=[
+                                3.844551010878661e-8,
+                                9.846474508971374e-16,
+                                3.844551077492042e-8,
+                            ],
+                            tspan=(0.0, 0.25),
+                            boundary_condition=boundary_condition_slip_wall)
+        # Ensure that we do not have excessive memory allocations
+        # (e.g., from type instabilities)
+        let
+            t = sol.t[end]
+            u_ode = sol.u[end]
+            du_ode = similar(u_ode)
+            @test (@allocated Trixi.rhs!(du_ode, u_ode, semi, t)) < 1000
+        end
+    end
+end
+
+# Clean up afterwards: delete output directory
+@test_nowarn rm(outdir, recursive = true)
+end # Upstream tests
+
+end # module