diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 5e9fe4815..2fd8ea8f1 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -90,6 +90,9 @@ jobs:
           OPT1: ${{ matrix.mpi == 'mpi' && '--test-all' || '' }}
           OPT2: ${{ matrix.debug == 'debug' && '-% 20' || '' }}
 
+      - name: Ensure empty diff
+        run:  git diff --exit-code tests/
+
   docker:
     name:    Github | Docker
     runs-on: ubuntu-latest
@@ -100,6 +103,9 @@ jobs:
     - name: Test
       run:  sudo ./mfc.sh docker ./mfc.sh test -j $(nproc) -a
 
+    - name: Ensure empty diff
+      run:  git diff --exit-code tests/
+
   self:
     name: Georgia Tech | Phoenix (NVHPC)
     if: github.repository == 'MFlowCode/MFC'
@@ -125,8 +131,10 @@ jobs:
           mv misc/run-phoenix-release-${{ matrix.device }}.sh ./
           sbatch run-phoenix-release-${{ matrix.device }}.sh
 
+      - name: Ensure empty diff
+        run:  exit $(git status --porcelain tests/ | wc -l)
+
       - name: Print
         if: always()
         run: |
           cat test.out
-
diff --git a/tests/0879E062/case.py b/tests/0879E062/case.py
index 78a320b65..69b6041b8 100644
--- a/tests/0879E062/case.py
+++ b/tests/0879E062/case.py
@@ -41,7 +41,7 @@
     "mp_weno": "F",
     "riemann_solver": 1,
     "wave_speeds": 1,
-    "avg_state": 1,
+    "avg_state": "1",
     "format": 1,
     "precision": 2,
     "prim_vars_wrt": "F",
diff --git a/tests/2A523AC1/case.py b/tests/2A523AC1/case.py
index 28031938b..26b38e9d3 100644
--- a/tests/2A523AC1/case.py
+++ b/tests/2A523AC1/case.py
@@ -40,7 +40,7 @@
     "null_weights": "F",
     "mp_weno": "F",
     "riemann_solver": 1,
-    "wave_speeds": 2,
+    "wave_speeds": "2",
     "avg_state": 2,
     "format": 1,
     "precision": 2,
diff --git a/tests/32D0F235/case.py b/tests/32D0F235/case.py
index dcf789b93..417fe0f60 100644
--- a/tests/32D0F235/case.py
+++ b/tests/32D0F235/case.py
@@ -40,7 +40,7 @@
     "null_weights": "F",
     "mp_weno": "F",
     "riemann_solver": 1,
-    "wave_speeds": 2,
+    "wave_speeds": "2",
     "avg_state": 2,
     "format": 1,
     "precision": 2,
diff --git a/tests/345A94C0/case.py b/tests/345A94C0/case.py
index 09cd5309d..01974e992 100644
--- a/tests/345A94C0/case.py
+++ b/tests/345A94C0/case.py
@@ -40,7 +40,7 @@
     "null_weights": "F",
     "mp_weno": "F",
     "riemann_solver": 2,
-    "wave_speeds": 2,
+    "wave_speeds": "2",
     "avg_state": 2,
     "format": 1,
     "precision": 2,
diff --git a/tests/3BFEAC19/case.py b/tests/3BFEAC19/case.py
index 49b4bb919..119b84fd9 100644
--- a/tests/3BFEAC19/case.py
+++ b/tests/3BFEAC19/case.py
@@ -41,7 +41,7 @@
     "mp_weno": "F",
     "riemann_solver": 1,
     "wave_speeds": 1,
-    "avg_state": 1,
+    "avg_state": "1",
     "format": 1,
     "precision": 2,
     "prim_vars_wrt": "F",
diff --git a/tests/3C00B89D/case.py b/tests/3C00B89D/case.py
index 4c0b1b72c..c5c0cfa3a 100644
--- a/tests/3C00B89D/case.py
+++ b/tests/3C00B89D/case.py
@@ -41,7 +41,7 @@
     "mp_weno": "F",
     "riemann_solver": 2,
     "wave_speeds": 1,
-    "avg_state": 1,
+    "avg_state": "1",
     "format": 1,
     "precision": 2,
     "prim_vars_wrt": "F",
diff --git a/tests/461DCB09/case.py b/tests/461DCB09/case.py
index 1d5d89c27..7917913fe 100644
--- a/tests/461DCB09/case.py
+++ b/tests/461DCB09/case.py
@@ -40,7 +40,7 @@
     "null_weights": "F",
     "mp_weno": "F",
     "riemann_solver": 2,
-    "wave_speeds": 2,
+    "wave_speeds": "2",
     "avg_state": 2,
     "format": 1,
     "precision": 2,
diff --git a/tests/4AEF478A/case.py b/tests/4AEF478A/case.py
index be82de17d..af1c30ea4 100644
--- a/tests/4AEF478A/case.py
+++ b/tests/4AEF478A/case.py
@@ -41,7 +41,7 @@
     "mp_weno": "F",
     "riemann_solver": 1,
     "wave_speeds": 1,
-    "avg_state": 1,
+    "avg_state": "1",
     "format": 1,
     "precision": 2,
     "prim_vars_wrt": "F",
diff --git a/tests/645A26E3/case.py b/tests/645A26E3/case.py
index f04c62873..322e049cd 100644
--- a/tests/645A26E3/case.py
+++ b/tests/645A26E3/case.py
@@ -41,7 +41,7 @@
     "mp_weno": "F",
     "riemann_solver": 2,
     "wave_speeds": 1,
-    "avg_state": 1,
+    "avg_state": "1",
     "format": 1,
     "precision": 2,
     "prim_vars_wrt": "F",
diff --git a/tests/6D24B115/case.py b/tests/6D24B115/case.py
index 9a834c0c6..f6c90a183 100644
--- a/tests/6D24B115/case.py
+++ b/tests/6D24B115/case.py
@@ -41,7 +41,7 @@
     "mp_weno": "F",
     "riemann_solver": 2,
     "wave_speeds": 1,
-    "avg_state": 1,
+    "avg_state": "1",
     "format": 1,
     "precision": 2,
     "prim_vars_wrt": "F",
diff --git a/tests/6F296065/case.py b/tests/6F296065/case.py
index 8168a7f04..76ea9c5b1 100644
--- a/tests/6F296065/case.py
+++ b/tests/6F296065/case.py
@@ -111,17 +111,17 @@
     "patch_icpp(1)%x_centroid": 0.5,
     "patch_icpp(1)%length_x": 1,
     "patch_icpp(1)%vel(1)": 0.0,
-    "patch_icpp(1)%vel(2)": 0.0,
+    "patch_icpp(1)%vel(2)": 606.15,
     "patch_icpp(2)%geometry": 3,
     "patch_icpp(2)%x_centroid": 0.5,
     "patch_icpp(2)%length_x": 1,
     "patch_icpp(2)%vel(1)": 0.0,
-    "patch_icpp(2)%vel(2)": 0.0,
+    "patch_icpp(2)%vel(2)": 10.0,
     "patch_icpp(3)%geometry": 3,
     "patch_icpp(3)%x_centroid": 0.5,
     "patch_icpp(3)%length_x": 1,
     "patch_icpp(3)%vel(1)": 0.0,
-    "patch_icpp(3)%vel(2)": 0.0,
+    "patch_icpp(3)%vel(2)": 10.0,
     "relax": "T",
     "relax_model": 5,
     "palpha_eps": 0.01,
diff --git a/tests/73B0539E/case.py b/tests/73B0539E/case.py
index 7a5e59e10..e48783b2d 100644
--- a/tests/73B0539E/case.py
+++ b/tests/73B0539E/case.py
@@ -41,7 +41,7 @@
     "mp_weno": "F",
     "riemann_solver": 1,
     "wave_speeds": 1,
-    "avg_state": 1,
+    "avg_state": "1",
     "format": 1,
     "precision": 2,
     "prim_vars_wrt": "F",
diff --git a/tests/83EFC30C/case.py b/tests/83EFC30C/case.py
index ac0fe2ea7..d662444f9 100644
--- a/tests/83EFC30C/case.py
+++ b/tests/83EFC30C/case.py
@@ -40,7 +40,7 @@
     "null_weights": "F",
     "mp_weno": "F",
     "riemann_solver": 1,
-    "wave_speeds": 2,
+    "wave_speeds": "2",
     "avg_state": 2,
     "format": 1,
     "precision": 2,
diff --git a/tests/851F7AE2/case.py b/tests/851F7AE2/case.py
index b3c38a6c9..5456ead6a 100644
--- a/tests/851F7AE2/case.py
+++ b/tests/851F7AE2/case.py
@@ -41,7 +41,7 @@
     "mp_weno": "F",
     "riemann_solver": 1,
     "wave_speeds": 1,
-    "avg_state": 1,
+    "avg_state": "1",
     "format": 1,
     "precision": 2,
     "prim_vars_wrt": "F",
diff --git a/tests/A5C93D62/case.py b/tests/A5C93D62/case.py
index e7c23fa0b..68f5a4db8 100644
--- a/tests/A5C93D62/case.py
+++ b/tests/A5C93D62/case.py
@@ -40,7 +40,7 @@
     "null_weights": "F",
     "mp_weno": "F",
     "riemann_solver": 1,
-    "wave_speeds": 2,
+    "wave_speeds": "2",
     "avg_state": 2,
     "format": 1,
     "precision": 2,
diff --git a/tests/AB0BE4E4/case.py b/tests/AB0BE4E4/case.py
index 585fbb390..559e05d6a 100644
--- a/tests/AB0BE4E4/case.py
+++ b/tests/AB0BE4E4/case.py
@@ -41,7 +41,7 @@
     "mp_weno": "F",
     "riemann_solver": 2,
     "wave_speeds": 1,
-    "avg_state": 1,
+    "avg_state": "1",
     "format": 1,
     "precision": 2,
     "prim_vars_wrt": "F",
diff --git a/tests/B33E256A/case.py b/tests/B33E256A/case.py
index c3436ee5f..a876a9553 100644
--- a/tests/B33E256A/case.py
+++ b/tests/B33E256A/case.py
@@ -41,7 +41,7 @@
     "mp_weno": "F",
     "riemann_solver": 2,
     "wave_speeds": 1,
-    "avg_state": 1,
+    "avg_state": "1",
     "format": 1,
     "precision": 2,
     "prim_vars_wrt": "F",
diff --git a/tests/B8F5F1C8/case.py b/tests/B8F5F1C8/case.py
index 398a737c8..284366a22 100644
--- a/tests/B8F5F1C8/case.py
+++ b/tests/B8F5F1C8/case.py
@@ -40,7 +40,7 @@
     "null_weights": "F",
     "mp_weno": "F",
     "riemann_solver": 2,
-    "wave_speeds": 2,
+    "wave_speeds": "2",
     "avg_state": 2,
     "format": 1,
     "precision": 2,
diff --git a/tests/BD8004FF/case.py b/tests/BD8004FF/case.py
index d467ef7d1..8deb05209 100644
--- a/tests/BD8004FF/case.py
+++ b/tests/BD8004FF/case.py
@@ -40,7 +40,7 @@
     "null_weights": "F",
     "mp_weno": "F",
     "riemann_solver": 1,
-    "wave_speeds": 2,
+    "wave_speeds": "2",
     "avg_state": 2,
     "format": 1,
     "precision": 2,
diff --git a/tests/C36F18FB/case.py b/tests/C36F18FB/case.py
index fabafd247..3bfd57531 100644
--- a/tests/C36F18FB/case.py
+++ b/tests/C36F18FB/case.py
@@ -40,7 +40,7 @@
     "null_weights": "F",
     "mp_weno": "F",
     "riemann_solver": 2,
-    "wave_speeds": 2,
+    "wave_speeds": "2",
     "avg_state": 2,
     "format": 1,
     "precision": 2,
diff --git a/tests/D3C860B9/case.py b/tests/D3C860B9/case.py
index b93d90ac7..32180a2c7 100644
--- a/tests/D3C860B9/case.py
+++ b/tests/D3C860B9/case.py
@@ -111,17 +111,17 @@
     "patch_icpp(1)%x_centroid": 0.5,
     "patch_icpp(1)%length_x": 1,
     "patch_icpp(1)%vel(1)": 0.0,
-    "patch_icpp(1)%vel(2)": 0.0,
+    "patch_icpp(1)%vel(2)": 606.15,
     "patch_icpp(2)%geometry": 3,
     "patch_icpp(2)%x_centroid": 0.5,
     "patch_icpp(2)%length_x": 1,
     "patch_icpp(2)%vel(1)": 0.0,
-    "patch_icpp(2)%vel(2)": 0.0,
+    "patch_icpp(2)%vel(2)": 10.0,
     "patch_icpp(3)%geometry": 3,
     "patch_icpp(3)%x_centroid": 0.5,
     "patch_icpp(3)%length_x": 1,
     "patch_icpp(3)%vel(1)": 0.0,
-    "patch_icpp(3)%vel(2)": 0.0,
+    "patch_icpp(3)%vel(2)": 10.0,
     "relax": "T",
     "relax_model": 6,
     "palpha_eps": 0.01,
diff --git a/tests/DA8AF07E/case.py b/tests/DA8AF07E/case.py
index 5980f44a5..d1f9284fa 100644
--- a/tests/DA8AF07E/case.py
+++ b/tests/DA8AF07E/case.py
@@ -111,17 +111,17 @@
     "patch_icpp(1)%x_centroid": 0.5,
     "patch_icpp(1)%length_x": 1,
     "patch_icpp(1)%vel(1)": 0.0,
-    "patch_icpp(1)%vel(2)": 0.0,
+    "patch_icpp(1)%vel(2)": 606.15,
     "patch_icpp(2)%geometry": 3,
     "patch_icpp(2)%x_centroid": 0.5,
     "patch_icpp(2)%length_x": 1,
     "patch_icpp(2)%vel(1)": 0.0,
-    "patch_icpp(2)%vel(2)": 0.0,
+    "patch_icpp(2)%vel(2)": 10.0,
     "patch_icpp(3)%geometry": 3,
     "patch_icpp(3)%x_centroid": 0.5,
     "patch_icpp(3)%length_x": 1,
     "patch_icpp(3)%vel(1)": 0.0,
-    "patch_icpp(3)%vel(2)": 0.0,
+    "patch_icpp(3)%vel(2)": 10.0,
     "relax": "T",
     "relax_model": 5,
     "palpha_eps": 0.01,
diff --git a/tests/DC9CB97E/case.py b/tests/DC9CB97E/case.py
index 2949eb42a..8afa4dfb8 100644
--- a/tests/DC9CB97E/case.py
+++ b/tests/DC9CB97E/case.py
@@ -41,7 +41,7 @@
     "mp_weno": "F",
     "riemann_solver": 1,
     "wave_speeds": 1,
-    "avg_state": 1,
+    "avg_state": "1",
     "format": 1,
     "precision": 2,
     "prim_vars_wrt": "F",
diff --git a/tests/F4F6AC27/case.py b/tests/F4F6AC27/case.py
index 30dfdc2cc..1887f1ae5 100644
--- a/tests/F4F6AC27/case.py
+++ b/tests/F4F6AC27/case.py
@@ -40,7 +40,7 @@
     "null_weights": "F",
     "mp_weno": "F",
     "riemann_solver": 2,
-    "wave_speeds": 2,
+    "wave_speeds": "2",
     "avg_state": 2,
     "format": 1,
     "precision": 2,
diff --git a/tests/F97573DB/case.py b/tests/F97573DB/case.py
index 5f34f6e4a..92291d55d 100644
--- a/tests/F97573DB/case.py
+++ b/tests/F97573DB/case.py
@@ -41,7 +41,7 @@
     "mp_weno": "F",
     "riemann_solver": 2,
     "wave_speeds": 1,
-    "avg_state": 1,
+    "avg_state": "1",
     "format": 1,
     "precision": 2,
     "prim_vars_wrt": "F",
diff --git a/tests/FBF808BE/case.py b/tests/FBF808BE/case.py
index c6d12b5dc..bf07cf941 100644
--- a/tests/FBF808BE/case.py
+++ b/tests/FBF808BE/case.py
@@ -40,7 +40,7 @@
     "null_weights": "F",
     "mp_weno": "F",
     "riemann_solver": 1,
-    "wave_speeds": 2,
+    "wave_speeds": "2",
     "avg_state": 2,
     "format": 1,
     "precision": 2,
diff --git a/tests/FC4D07B6/case.py b/tests/FC4D07B6/case.py
index 8e0a59278..d22b342e1 100644
--- a/tests/FC4D07B6/case.py
+++ b/tests/FC4D07B6/case.py
@@ -40,7 +40,7 @@
     "null_weights": "F",
     "mp_weno": "F",
     "riemann_solver": 2,
-    "wave_speeds": 2,
+    "wave_speeds": "2",
     "avg_state": 2,
     "format": 1,
     "precision": 2,