Add new snapshot tests at MPI boundaries

reframe_tests/tests/src/snapshot_tests/2d_slices.in

@@ -12,7 +12,9 @@
 #snapshot: 0.095 0 0 0.096 0.100 0.100 0.01 0.01 0.01 2e-9 snapshot_x_95.h5
 
 #snapshot: 0 0.015 0 0.100 0.016 0.100 0.01 0.01 0.01 2e-9 snapshot_y_15.h5
+#snapshot: 0 0.040 0 0.100 0.050 0.100 0.01 0.01 0.01 2e-9 snapshot_y_40.h5
 #snapshot: 0 0.045 0 0.100 0.046 0.100 0.01 0.01 0.01 2e-9 snapshot_y_45.h5
+#snapshot: 0 0.050 0 0.100 0.051 0.100 0.01 0.01 0.01 2e-9 snapshot_y_50.h5
 #snapshot: 0 0.075 0 0.100 0.076 0.100 0.01 0.01 0.01 2e-9 snapshot_y_75.h5
 
 #snapshot: 0 0 0.025 0.100 0.100 0.026 0.01 0.01 0.01 2e-9 snapshot_z_25.h5

reframe_tests/tests/test_snapshots.py

@@ -32,9 +32,11 @@ class Test2DSliceSnapshot(GprMaxRegressionTest):
         "snapshot_x_05.h5",
         "snapshot_x_35.h5",
         "snapshot_x_65.h5",
-        # "snapshot_x_95.h5",  # Fails due to out-of-bounds error
+        "snapshot_x_95.h5",
         "snapshot_y_15.h5",
+        "snapshot_y_40.h5",
         "snapshot_y_45.h5",
+        "snapshot_y_50.h5",
         "snapshot_y_75.h5",
         "snapshot_z_25.h5",
         "snapshot_z_55.h5",