Update hipTestDeviceSymbol sample

Change-Id: If5ba99c60cd30c4491ca3a4856764224163d3ddf

tests/src/deviceLib/hipTestDeviceSymbol.cpp

@@ -93,8 +93,29 @@ int main()
     hipMemcpyFromSymbol(C, HIP_SYMBOL(globalOut), SIZE, 0, hipMemcpyDeviceToHost);
     for(unsigned i=0;i<NUM;i++) {
         assert(A[i] == B[i]);
-//        assert(A[i] == C[i]);
+        assert(A[i] == C[i]);
     }
 
+    for(unsigned i=0;i<NUM;i++) {
+        A[i] = -3*i;
+        B[i] = 0;
+    }
+
+    hipMemcpyToSymbolAsync(HIP_SYMBOL(globalIn), A, SIZE, 0, hipMemcpyHostToDevice, stream);
+    hipStreamSynchronize(stream);
+    hipLaunchKernel(Assign, dim3(1,1,1), dim3(NUM,1,1), 0, 0, Ad);
+    hipMemcpy(B, Ad, SIZE, hipMemcpyDeviceToHost);
+    hipMemcpyFromSymbolAsync(C, HIP_SYMBOL(globalOut), SIZE, 0, hipMemcpyDeviceToHost, stream);
+    hipStreamSynchronize(stream);
+    for(unsigned i=0;i<NUM;i++) {
+        assert(A[i] == B[i]);
+        assert(A[i] == C[i]);
+    }
+    hipHostFree(Am);
+    hipHostFree(Cm);
+    hipFree(Ad);
+    delete[] A;
+    delete[] B;
+    delete[] C;
     passed();
 }