Unit tests for ParCSRMatrix overlap code

AUTOTEST/machine-tux.sh

@@ -61,7 +61,7 @@ mv -f check-case.??? $output_dir
 
 # Basic build and run tests
 mo="-j test"
-ro="-ams -ij -sstruct -sstructmat -struct -structmat -lobpcg"
+ro="-unit -ams -ij -sstruct -sstructmat -struct -structmat -lobpcg"
 eo=""
 
 co=""

AUTOTEST/runtests-unit

@@ -0,0 +1 @@
+TEST_unit/*.sh

src/test/CMakeLists.txt

@@ -172,8 +172,39 @@ if(BUILD_TESTING)
     DEPENDS sstruct
     FAIL_REGULAR_EXPRESSION "Failed"
   )
+
+  # Unit tests
+  add_test(NAME test_unit
+    COMMAND ${BASH_PROGRAM} -c "\
+      ${BASH_PROGRAM} ${CMAKE_CURRENT_SOURCE_DIR}/runtest.sh \
+        -atol ${HYPRE_CHECK_TOL} \
+        -mpi \"${MPIEXEC_EXECUTABLE} ${MPIEXEC_NUMPROC_FLAG}\" \
+        ${CMAKE_CURRENT_SOURCE_DIR}/TEST_unit/unit.sh && \
+      ${BASH_PROGRAM} ${CMAKE_CURRENT_SOURCE_DIR}/checktest.sh && \
+      ${BASH_PROGRAM} ${CMAKE_CURRENT_SOURCE_DIR}/cleantest.sh"
+  )
+  set_tests_properties(test_unit PROPERTIES
+    WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}
+    DEPENDS test_csr_overlap
+    FAIL_REGULAR_EXPRESSION "Failed"
+  )
 endif()
 
+# Add unit_tests make target for convenience
+add_custom_target(unit_tests
+  COMMAND ${CMAKE_COMMAND} -E echo "Running unit tests..."
+  COMMAND ${BASH_PROGRAM} ${CMAKE_CURRENT_SOURCE_DIR}/runtest.sh
+          -atol ${HYPRE_CHECK_TOL}
+          -mpi "${MPIEXEC_EXECUTABLE} ${MPIEXEC_NUMPROC_FLAG}"
+          ${CMAKE_CURRENT_SOURCE_DIR}/TEST_unit/unit.sh
+  COMMAND ${BASH_PROGRAM} ${CMAKE_CURRENT_SOURCE_DIR}/checktest.sh
+  COMMAND ${BASH_PROGRAM} ${CMAKE_CURRENT_SOURCE_DIR}/cleantest.sh
+  WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}
+  DEPENDS test_csr_overlap
+  COMMENT "Running unit tests"
+  VERBATIM
+)
+
 # Optional Fortran-based drivers
 if(HYPRE_ENABLE_FORTRAN)
   # Build Fortran wrapper object libraries to be linked into C drivers

src/test/TEST_unit/unit.jobs

@@ -0,0 +1,13 @@
+#!/bin/bash
+# Copyright (c) 1998 Lawrence Livermore National Security, LLC and other
+# HYPRE Project Developers. See the top-level COPYRIGHT file for details.
+#
+# SPDX-License-Identifier: (Apache-2.0 OR MIT)
+
+#=============================================================================
+# Unit Test: CSR Overlap Extraction
+# Tests various grid configurations and overlap orders
+#=============================================================================
+
+mpirun -np 8  ./test_csr_overlap > unit.out.0
+

src/test/TEST_unit/unit.sh

@@ -0,0 +1,110 @@
+#!/bin/bash
+# Copyright (c) 1998 Lawrence Livermore National Security, LLC and other
+# HYPRE Project Developers. See the top-level COPYRIGHT file for details.
+#
+# SPDX-License-Identifier: (Apache-2.0 OR MIT)
+
+TNAME=`basename $0 .sh`
+RTOL=$1
+ATOL=$2
+
+#=============================================================================
+# Check that all tests passed
+#=============================================================================
+
+# Find all output files
+OUTFILES=$(ls ${TNAME}.out.* 2>/dev/null | sort)
+
+if [ -z "$OUTFILES" ]; then
+  echo "No output files found matching ${TNAME}.out.*" >&2
+  exit 1
+fi
+
+# Build mapping from output file to test driver from jobs file
+declare -A DRIVER_MAP
+if [ -f ${TNAME}.jobs ]; then
+  while IFS= read -r line; do
+    # Extract lines like: mpirun -np 8  ./test_csr_overlap > unit.out.0
+    if echo "$line" | grep -qE ">\s*${TNAME}\.out\.[0-9]+"; then
+      DRIVER=$(echo "$line" | grep -oE "\./[a-zA-Z0-9_]+" | sed 's|^\./||')
+      OUTFILE=$(echo "$line" | grep -oE "${TNAME}\.out\.[0-9]+" | head -1)
+      if [ -n "$DRIVER" ] && [ -n "$OUTFILE" ]; then
+        DRIVER_MAP[$OUTFILE]=$DRIVER
+      fi
+    fi
+  done < ${TNAME}.jobs
+fi
+
+# Check each output file for failures
+TOTAL_PASSED=0
+TOTAL_FAILED=0
+FAILED_DETAILS=""
+
+for OUTFILE in $OUTFILES; do
+  if [ ! -f $OUTFILE ]; then
+    continue
+  fi
+
+  # Count PASSED and FAILED messages
+  PASSED_COUNT=$(grep -c "PASSED" $OUTFILE 2>/dev/null || echo "0")
+  FAILED_COUNT=$(grep -c "FAILED" $OUTFILE 2>/dev/null || echo "0")
+
+  # Strip whitespace
+  PASSED_COUNT=$(echo "$PASSED_COUNT" | tr -d '[:space:]')
+  FAILED_COUNT=$(echo "$FAILED_COUNT" | tr -d '[:space:]')
+  PASSED_COUNT=${PASSED_COUNT:-0}
+  FAILED_COUNT=${FAILED_COUNT:-0}
+
+  TOTAL_PASSED=$((TOTAL_PASSED + PASSED_COUNT))
+  TOTAL_FAILED=$((TOTAL_FAILED + FAILED_COUNT))
+
+  if [ "$FAILED_COUNT" -gt 0 ]; then
+    # Find which test(s) failed in this file
+    FAILED_TESTS=$(grep "^Test[0-9]" $OUTFILE | grep -v "PASSED" | sed 's/ (.*procs).*//' | sed 's/:.*//')
+
+    # Get test driver for this output file
+    TEST_DRIVER="${DRIVER_MAP[$OUTFILE]}"
+    if [ -z "$TEST_DRIVER" ]; then
+      TEST_DRIVER="Unknown"
+    fi
+
+    # Add to failed details
+    if [ -n "$FAILED_TESTS" ]; then
+      while IFS= read -r test; do
+        FAILED_DETAILS="${FAILED_DETAILS}  - [${TEST_DRIVER}]: ${test}\n"
+      done <<< "$FAILED_TESTS"
+    fi
+  fi
+done
+
+# Report failures if any
+if [ "$TOTAL_FAILED" -gt 0 ]; then
+  echo "Failed test summary:" >&2
+  echo -e "$FAILED_DETAILS" | sed '/^$/d' >&2
+fi
+
+if [ "$TOTAL_PASSED" -eq 0 ] && [ "$TOTAL_FAILED" -eq 0 ]; then
+  echo "No test results found in output files" >&2
+fi
+
+# Collect summary output from all output files
+{
+  for OUTFILE in $OUTFILES; do
+    if [ -f $OUTFILE ]; then
+      echo -e "# Output file: $OUTFILE\n"
+      # Extract test results (lines containing PASSED/FAILED)
+      grep -E "(PASSED|FAILED|Test[0-9])" $OUTFILE | head -20
+      echo ""
+    fi
+  done
+} > ${TNAME}.out
+
+# Verify we got results
+OUTCOUNT=$(grep -c "PASSED\|FAILED" ${TNAME}.out 2>/dev/null || echo "0")
+OUTCOUNT=$(echo "$OUTCOUNT" | tr -d '[:space:]')
+OUTCOUNT=${OUTCOUNT:-0}
+if [ "$OUTCOUNT" -eq 0 ]; then
+   echo "No test results found in output files" >&2
+fi
+
+