diff --git a/tests/20config_lowlevel.tests b/tests/20config_lowlevel.tests
new file mode 100644
index 000000000..6b1e0abbe
--- /dev/null
+++ b/tests/20config_lowlevel.tests
@@ -0,0 +1,27 @@
+TESTING "test configuration system" ./test-config
+
+TEST "initializing config system" init <<END
+out: initialized
+out: destroyed
+END
+
+
+TEST "create configitem with empty line" configitem_simple '' <<END
+out: line = ''
+END
+
+TEST "create configitem with blank line" configitem_simple '    ' <<END
+out: line = '    '
+END
+
+TEST "create configitem simple entry" configitem_simple 'foo.bar = baz' <<END
+out: line = 'foo.bar = baz'
+out: key = 'foo.bar'
+out: delim = '='
+out: value = ' baz'
+END
+
+
+TEST "key lookup" lookup <<END
+END
+
diff --git a/tests/20config.tests b/tests/22config_highlevel.tests
similarity index 90%
rename from tests/20config.tests
rename to tests/22config_highlevel.tests
index 7a4ea2517..ab07af113 100644
--- a/tests/20config.tests
+++ b/tests/22config_highlevel.tests
@@ -1,11 +1,5 @@
 TESTING "test configuration system" ./test-config
 
-TEST "initializing config system" init <<END
-out: initialized
-out: destroyed
-END
-
-
 PLANNED "loading configfile, simple"  <<END
 END
 
@@ -134,9 +128,3 @@ END
 
 PLANNED "bool set"  <<END
 END
-
-TEST "create configitem with empty line" configitem_simple_ctor_dtor '' <<END
-END
-
-TEST "create configitem with blank line" configitem_simple_ctor_dtor $' \t \t' <<END
-END
diff --git a/tests/backend/test-config.c b/tests/backend/test-config.c
index 1369aa8bc..f6f983fab 100644
--- a/tests/backend/test-config.c
+++ b/tests/backend/test-config.c
@@ -37,6 +37,52 @@ TEST ("init")
 }
 
 
+TEST ("configitem_simple")
+{
+  REQUIRE (argv[2]);
+  lumiera_config_init ("./");
+
+  LumieraConfigitem item;
+
+  item = lumiera_configitem_new (argv[2]);
+  ENSURE (item);
+
+  printf ("line = '%s'\n", item->line);
+  if (item->key)
+    printf ("key = '%.*s'\n", (int)item->key_size, item->key);
+  if (item->delim)
+    {
+      printf ("delim = '%c'\n", *item->delim);
+      printf ("value = '%s'\n", item->delim+1);
+    }
+
+  lumiera_configitem_delete (item);
+
+  lumiera_config_destroy ();
+}
+
+
+TEST ("lookup")
+{
+  lumiera_config_init ("./");
+
+  lumiera_config_lookup lookup;
+  lumiera_config_lookup_init (&lookup);
+
+  LumieraConfigitem item = lumiera_configitem_new ("foo.bar = test");
+  lumiera_config_lookup_insert (&lookup, item);
+
+  //  LumieraConfigitem found = lumiera_config_lookup_item_find (&lookup, "foo.bar");
+  // ENSURE (found == item);
+
+  //lumiera_config_lookup_remove (&lookup, found);
+  //ENSURE (found == NULL);
+
+  lumiera_config_lookup_destroy (&lookup);
+  lumiera_config_destroy ();
+}
+
+
 TEST ("number_get")
 {
   REQUIRE (argv[2]);
@@ -127,19 +173,4 @@ TEST ("word_get")
   lumiera_config_destroy ();
 }
 
-TEST ("configitem_simple_ctor_dtor")
-{
-  REQUIRE (argv[2]);
-  lumiera_config_init ("./");
-
-  LumieraConfigitem item;
-
-  item = lumiera_configitem_new (argv[2]);
-
-  lumiera_configitem_delete (item);
-
-  lumiera_config_destroy ();
-}
-
-
 TESTS_END