TST: add test for compatible cpplib

test/runtests.jl

@@ -24,6 +24,12 @@ using Test
 using CaosDB
 
 @testset "CaosDBUnitTests" begin
+    @testset "TestCaosdbCppLibVersion" begin
+        @test ccall((:caosdb_constants_LIBCAOSDB_VERSION_MAJOR, CaosDB.library_name), Cint, ()) == 0
+        @test ccall((:caosdb_constants_LIBCAOSDB_VERSION_MINOR, CaosDB.library_name), Cint, ()) == 0
+        @test ccall((:caosdb_constants_LIBCAOSDB_VERSION_PATCH, CaosDB.library_name), Cint, ()) == 16
+    end
+
     @testset "TestUtility" begin
         if haskey(ENV, "SHELL")
             shell_var = ENV["SHELL"]