diff --git a/.github/workflows/cd.yml b/.github/workflows/cd.yml
index 03257147..7e234f4f 100644
--- a/.github/workflows/cd.yml
+++ b/.github/workflows/cd.yml
@@ -203,6 +203,8 @@ jobs:
             mingw-w64-clang-x86_64-netcdf
             mingw-w64-clang-x86_64-zlib
             mingw-w64-clang-x86_64-libaec
+            mingw-w64-clang-x86_64-libc++
+            mingw-w64-x86_64-libc++
 
 #      - name: Setup tmate session
 #        uses: mxschmitt/action-tmate@v3
@@ -249,6 +251,8 @@ jobs:
           echo "working dir is $PWD"
 
           cd build
+          
+          PATH="/c/Program\ Files/LLVM/bin:$PATH"
 
           ctest -VV
 
diff --git a/NFsim_v1.11/CMakeLists.txt b/NFsim_v1.11/CMakeLists.txt
index 926e0196..7f2616b7 100755
--- a/NFsim_v1.11/CMakeLists.txt
+++ b/NFsim_v1.11/CMakeLists.txt
@@ -94,7 +94,7 @@ enable_testing()
 add_executable(${exe_target} ${SRC_FILES})
 target_link_libraries(${exe_target} vcommons vcellmessaging)
 
-add_test(NAME ${exe_target}_test2 COMMAND ${CMAKE_CURRENT_SOURCE_DIR}/tests/test1.sh ${CMAKE_BINARY_DIR}/bin/${exe_target} WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}/tests)
+add_test(NAME ${exe_target}_test1 COMMAND ${CMAKE_CURRENT_SOURCE_DIR}/tests/test1.sh ${CMAKE_BINARY_DIR}/bin/${exe_target} WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}/tests)
 
 install(TARGETS ${exe_target} RUNTIME DESTINATION ${OPTION_EXE_DIRECTORY})
 
diff --git a/NFsim_v1.11/tests/test1.sh b/NFsim_v1.11/tests/test1.sh
index 684ccf45..d23be6ab 100755
--- a/NFsim_v1.11/tests/test1.sh
+++ b/NFsim_v1.11/tests/test1.sh
@@ -1,13 +1,53 @@
 #!/bin/bash
 set -e
+set -x
 EXE=$1
 INPUT="data/SimID_273069657_0_.nfsimInput"
 OUTPUT="data/SimID_273069657_0_.gdat"
 EXPECTED_OUTPUT="data/SimID_273069657_0_.gdat.expected"
 SPECIES="data/SimID_273069657_0_.species"
 EXPECTED_SPECIES="data/SimID_273069657_0_.species.expected"
+
+if [ ! -f $EXE ]; then
+    echo "NFsim executable $EXE not found. Exiting..."
+    exit 1
+fi
+if [ ! -f $INPUT ]; then
+    echo "Input file $INPUT not found. Exiting..."
+    exit 1
+fi
+if [ ! -f $EXPECTED_OUTPUT ]; then
+    echo "Expected output file $EXPECTED_OUTPUT not found. Exiting..."
+    exit 1
+fi
+if [ ! -f $EXPECTED_SPECIES ]; then
+    echo "Expected species file $EXPECTED_SPECIES not found. Exiting..."
+    exit 1
+fi
+
+
 command="$EXE -seed 505790288 -vcell -xml $INPUT -o $OUTPUT -sim 1.0 -ss $SPECIES -oStep 20 -notf -utl 1000 -cb -pcmatch -tid 0"
-$EXE $command
+if ! $command; then
+    echo "NFsim failed to run. Exiting..."
+    exit 1
+fi
+
+# verify that the output files exist
+if [ ! -f $OUTPUT ]; then
+    echo "Output file $OUTPUT not found. Exiting..."
+    exit 1
+fi
+if [ ! -f $SPECIES ]; then
+    echo "Species file $SPECIES not found. Exiting..."
+    exit 1
+fi
 
-diff $OUTPUT $EXPECTED_OUTPUT
-diff $SPECIES $EXPECTED_SPECIES
+# verify that the output files match the expected output files
+if ! diff $OUTPUT $EXPECTED_OUTPUT; then
+    echo "Output file $OUTPUT does not match expected output $EXPECTED_OUTPUT. Exiting..."
+    exit 1
+fi
+if ! diff $SPECIES $EXPECTED_SPECIES; then
+    echo "Species file $SPECIES does not match expected species $EXPECTED_SPECIES. Exiting..."
+    exit 1
+fi