diff --git a/test/unit/reducer/test-reducer-constructors-cuda.cpp b/test/unit/reducer/test-reducer-constructors-cuda.cpp
index 6b57120148..a0dca0b5d4 100644
--- a/test/unit/reducer/test-reducer-constructors-cuda.cpp
+++ b/test/unit/reducer/test-reducer-constructors-cuda.cpp
@@ -12,12 +12,21 @@
 #include "tests/test-reducer-constructors.hpp"
 
 #if defined(RAJA_ENABLE_CUDA)
+using CudaBasicReducerConstructorTypes = 
+  Test< camp::cartesian_product< CudaReducerPolicyList,
+                                 DataTypeList,
+                                 CudaResourceList > >::Types;
+
 using CudaInitReducerConstructorTypes = 
   Test< camp::cartesian_product< CudaReducerPolicyList,
                                  DataTypeList,
                                  CudaResourceList,
                                  CudaForoneList > >::Types;
 
+INSTANTIATE_TYPED_TEST_SUITE_P(CudaBasicTest,
+                               ReducerBasicConstructorUnitTest,
+                               CudaBasicReducerConstructorTypes);
+
 INSTANTIATE_TYPED_TEST_SUITE_P(CudaInitTest,
                                ReducerInitConstructorUnitTest,
                                CudaInitReducerConstructorTypes);
diff --git a/test/unit/reducer/test-reducer-constructors-hip.cpp b/test/unit/reducer/test-reducer-constructors-hip.cpp
index 0de347217d..5f898d4da4 100644
--- a/test/unit/reducer/test-reducer-constructors-hip.cpp
+++ b/test/unit/reducer/test-reducer-constructors-hip.cpp
@@ -12,12 +12,21 @@
 #include "tests/test-reducer-constructors.hpp"
 
 #if defined(RAJA_ENABLE_HIP)
+using HipBasicReducerConstructorTypes = 
+  Test< camp::cartesian_product< HipReducerPolicyList,
+                                 DataTypeList,
+                                 HipResourceList > >::Types;
+
 using HipInitReducerConstructorTypes = 
   Test< camp::cartesian_product< HipReducerPolicyList,
                                  DataTypeList,
                                  HipResourceList,
                                  HipForoneList > >::Types;
 
+INSTANTIATE_TYPED_TEST_SUITE_P(HipBasicTest,
+                               ReducerBasicConstructorUnitTest,
+                               HipBasicReducerConstructorTypes);
+
 INSTANTIATE_TYPED_TEST_SUITE_P(HipInitTest,
                                ReducerInitConstructorUnitTest,
                                HipInitReducerConstructorTypes);
diff --git a/test/unit/reducer/tests/test-reducer-constructors.hpp b/test/unit/reducer/tests/test-reducer-constructors.hpp
index 953eabf682..a77973c4fc 100644
--- a/test/unit/reducer/tests/test-reducer-constructors.hpp
+++ b/test/unit/reducer/tests/test-reducer-constructors.hpp
@@ -29,9 +29,38 @@ class ReducerInitConstructorUnitTest : public ::testing::Test
 TYPED_TEST_SUITE_P(ReducerBasicConstructorUnitTest);
 TYPED_TEST_SUITE_P(ReducerInitConstructorUnitTest);
 
+#if defined(RAJA_ENABLE_CUDA) || defined(RAJA_ENABLE_HIP)
 template <typename ReducePolicy,
           typename NumericType>
-void testReducerConstructor()
+typename  std::enable_if<
+#if defined(RAJA_ENABLE_CUDA) // CUDA policy does nothing.
+            std::is_same<ReducePolicy, RAJA::cuda_reduce>::value
+#elif defined(RAJA_ENABLE_HIP) // HIP policy does nothing.
+            std::is_same<ReducePolicy, RAJA::hip_reduce>::value
+#else
+#error Please enable a supported GPU platform, e.g. CUDA or HIP.
+#endif
+          >::type
+testReducerConstructor()
+{
+  // do nothing
+}
+#endif
+
+// Basic constructor tests are only expected to be verified on the host.
+// Should not run this on a GPU.
+template <typename ReducePolicy,
+          typename NumericType>
+typename  std::enable_if< // CPU policy.
+#if defined(RAJA_ENABLE_CUDA)
+            !std::is_same<ReducePolicy, RAJA::cuda_reduce>::value
+#elif defined(RAJA_ENABLE_HIP)
+            !std::is_same<ReducePolicy, RAJA::hip_reduce>::value
+#else
+            true  // Always run for non-GPU policies.
+#endif
+          >::type
+testReducerConstructor()
 {
   RAJA::ReduceSum<ReducePolicy, NumericType> reduce_sum;
   RAJA::ReduceMin<ReducePolicy, NumericType> reduce_min;