Test cases detect if CPU is not supported and exit rather than crashing

platforms/cpu/tests/TestCpuGBSAOBCForce.cpp

@@ -223,6 +223,10 @@ void testForce(int numParticles, NonbondedForce::NonbondedMethod method, GBSAOBC
 
 int main() {
     try {
+        if (!CpuPlatform::isProcessorSupported()) {
+            cout << "CPU is not supported.  Exiting." << endl;
+            return 0;
+        }
         testSingleParticle();
         testCutoffAndPeriodic();
         for (int i = 5; i < 11; i++) {

platforms/cpu/tests/TestCpuLangevinIntegrator.cpp

@@ -264,6 +264,10 @@ void testRandomSeed() {
 
 int main() {
     try {
+        if (!CpuPlatform::isProcessorSupported()) {
+            cout << "CPU is not supported.  Exiting." << endl;
+            return 0;
+        }
         testSingleBond();
         testTemperature();
         testConstraints();

platforms/cpu/tests/TestCpuSettle.cpp

@@ -105,6 +105,10 @@ void testConstraints() {
 
 int main(int argc, char* argv[]) {
     try {
+        if (!CpuPlatform::isProcessorSupported()) {
+            cout << "CPU is not supported.  Exiting." << endl;
+            return 0;
+        }
         testConstraints();
     }
     catch(const exception& e) {