From 6598e481d35284e2c3b28387ff933ffa0c48894b Mon Sep 17 00:00:00 2001
From: "Marc T. Henry de Frahan" <marc.henrydefrahan@nrel.gov>
Date: Mon, 23 Sep 2024 13:21:35 -0600
Subject: [PATCH] Loosen the VOF unit test tolerance (#1299)

---
 unit_tests/UnitTestTpetraHelperObjects.h           |  9 +++++----
 unit_tests/edge_kernels/UnitTestVOFAdvectionEdge.C | 11 +++++++----
 2 files changed, 12 insertions(+), 8 deletions(-)

diff --git a/unit_tests/UnitTestTpetraHelperObjects.h b/unit_tests/UnitTestTpetraHelperObjects.h
index d9e1cbdbf..3a58ea7f7 100644
--- a/unit_tests/UnitTestTpetraHelperObjects.h
+++ b/unit_tests/UnitTestTpetraHelperObjects.h
@@ -107,7 +107,8 @@ struct TpetraHelperObjectsBase
     const std::vector<int>& rowOffsets,
     const std::vector<int>& cols,
     const std::vector<double>& vals,
-    const std::vector<double>& rhs)
+    const std::vector<double>& rhs,
+    const double tol = 1.e-14)
   {
     auto localMatrix = linsys->getOwnedMatrix()->getLocalMatrixHost();
     auto localRhs =
@@ -126,18 +127,18 @@ struct TpetraHelperObjectsBase
         for (int j = 0; j < constRowView.length; ++j) {
           if (constRowView.colidx(j) == goldCol) {
             foundGoldCol = true;
-            EXPECT_NEAR(vals[offset], constRowView.value(j), 1.e-14)
+            EXPECT_NEAR(vals[offset], constRowView.value(j), tol)
               << "i: " << i << ", j: " << j;
           } else if (!find_col(
                        constRowView.colidx(j), cols, rowOffsets[i],
                        rowOffsets[i + 1])) {
-            EXPECT_NEAR(0.0, constRowView.value(j), 1.e-14);
+            EXPECT_NEAR(0.0, constRowView.value(j), tol);
           }
         }
         EXPECT_TRUE(foundGoldCol);
       }
 
-      EXPECT_NEAR(rhs[i], localRhs(i, 0), 1.e-14) << "i: " << i;
+      EXPECT_NEAR(rhs[i], localRhs(i, 0), tol) << "i: " << i;
     }
   }
 
diff --git a/unit_tests/edge_kernels/UnitTestVOFAdvectionEdge.C b/unit_tests/edge_kernels/UnitTestVOFAdvectionEdge.C
index be594d3d7..317619dd3 100644
--- a/unit_tests/edge_kernels/UnitTestVOFAdvectionEdge.C
+++ b/unit_tests/edge_kernels/UnitTestVOFAdvectionEdge.C
@@ -147,17 +147,20 @@ TEST_F(VOFKernelHex8Mesh, NGP_adv_diff_edge_tpetra)
 
   namespace golds = ::hex8_golds::adv_diff;
 
+  const double tol = 1e-13;
   if (numProcs == 1) {
     helperObjs.check_against_sparse_gold_values(
       golds::rowOffsets_serial, golds::cols_serial, golds::vals_serial,
-      golds::rhs_serial);
+      golds::rhs_serial, tol);
   } else {
     if (myProc == 0) {
       helperObjs.check_against_sparse_gold_values(
-        golds::rowOffsets_P0, golds::cols_P0, golds::vals_P0, golds::rhs_P0);
+        golds::rowOffsets_P0, golds::cols_P0, golds::vals_P0, golds::rhs_P0,
+        tol);
     } else {
       helperObjs.check_against_sparse_gold_values(
-        golds::rowOffsets_P1, golds::cols_P1, golds::vals_P1, golds::rhs_P1);
+        golds::rowOffsets_P1, golds::cols_P1, golds::vals_P1, golds::rhs_P1,
+        tol);
     }
   }
-}
\ No newline at end of file
+}