Add read validation with ADIOS1 for BPFileWriter engine

testing/adios2/engine/bp/CMakeLists.txt

@@ -3,6 +3,12 @@
 # accompanying file Copyright.txt for details.
 #------------------------------------------------------------------------------#
 
-add_executable(TestBPWriteRead TestBPWriteRead.cpp)
-target_link_libraries(TestBPWriteRead adios2 gtest)
-add_test(NAME adios2::engine::bp::write_read COMMAND TestBPWriteRead)
+# MPI versions of the test are not properly implemented at the moment
+if(NOT ADIOS_USE_MPI)
+  find_package(ADIOS1 COMPONENTS sequential REQUIRED)
+
+  add_executable(TestBPWriteRead TestBPWriteRead.cpp)
+  target_link_libraries(TestBPWriteRead adios2 gtest adios1::adios)
+
+  add_test(NAME adios2::engine::bp::write_read COMMAND TestBPWriteRead)
+endif()