diff --git a/Makefile b/Makefile
index 3b6a82b..a1533ce 100644
--- a/Makefile
+++ b/Makefile
@@ -22,7 +22,7 @@ tracy_build:
 	meson compile -j 10 -C builddir
 
 test: build
-	./builddir/runtests "[components]"
+	./builddir/runtests
 
 run: build test
 	powershell "cp ./builddir/zedcaster.exe ."
diff --git a/assets/enemies.json b/assets/enemies.json
index 8011e27..f3ca362 100644
--- a/assets/enemies.json
+++ b/assets/enemies.json
@@ -31,6 +31,7 @@
         "foreground": [156, 172, 197],
         "background": [30, 20, 75]
       },
+      {"_type": "LightSource", "strength": 80, "radius": 2.8},
       {"_type": "Combat", "hp": 40, "max_hp": 40, "damage": 10, "dead": false},
       {"_type": "Motion", "dx": 0, "dy": 0, "random": true},
       {"_type": "EnemyConfig", "hearing_distance": 5},
diff --git a/meson.build b/meson.build
index 31158e2..639ec22 100644
--- a/meson.build
+++ b/meson.build
@@ -92,10 +92,12 @@ sources = [
 executable('runtests', sources + [
   'tests/ansi_parser.cpp',
   'tests/base.cpp',
+  'tests/components.cpp',
+  'tests/config.cpp',
   'tests/dbc.cpp',
   'tests/dinkyecs.cpp',
-  'tests/guecs.cpp',
   'tests/fsm.cpp',
+  'tests/guecs.cpp',
   'tests/inventory.cpp',
   'tests/lel.cpp',
   'tests/levelmanager.cpp',
@@ -104,9 +106,8 @@ executable('runtests', sources + [
   'tests/matrix.cpp',
   'tests/pathing.cpp',
   'tests/spatialmap.cpp',
-  'tests/tilemap.cpp',
-  'tests/components.cpp',
   'tests/textures.cpp',
+  'tests/tilemap.cpp',
   ], override_options: exe_defaults,
   dependencies: dependencies + [catch2])
 
diff --git a/tests/config.cpp b/tests/config.cpp
new file mode 100644
index 0000000..96e59cc
--- /dev/null
+++ b/tests/config.cpp
@@ -0,0 +1,18 @@
+#include <catch2/catch_test_macros.hpp>
+#include "config.hpp"
+#include <iostream>
+
+TEST_CASE("confirm basic config loader ops", "[config]") {
+  Config config("assets/devices.json");
+  auto data_list = config.json();
+
+
+  for(auto& [key, data] : data_list.items()) {
+    auto wide1 = config.wstring(key, "name");
+    auto& comps = data["components"];
+
+    for(auto& comp_data : comps) {
+      REQUIRE(comp_data.contains("_type"));
+    }
+  }
+}