Created a crate model in glb and obj format to use in the tests, then finished the model test.

14-refactor/tests/model_tests.cpp

@@ -2,20 +2,38 @@
 #include <string>
 #include <fuc2/testing.hpp>
 #include "model.hpp"
+#include "shader.hpp"
 
 using namespace fuc2;
 
 namespace model_tests {
   void test_load_textures() {
-    Model model{"assets/popcorn_model_a.glb"};
+    Shader shader{"shaders/14-vert.glsl", "shaders/14-frag.glsl"};
+
+    Model popcorn{"assets", "popcorn_model_a.glb"};
+    popcorn.draw(shader);
+
+    Model crate_glb{"assets", "crate.glb"};
+    crate_glb.draw(shader);
+
+    Model crate_obj{"assets", "crate.obj"};
+    crate_obj.draw(shader);
   }
 
+  void test_failures() {
+    auto runner = [&]() {
+      Model bad_obj{"assets", "does_not_exist.obj"};
+    };
+
+    BLOWS_UP(runner, "should fail on missing file.");
+  }
 
   fuc2::Set TESTS{
     .name="models",
       .options={ .fail_fast=false },
       .tests={
         TEST(test_load_textures),
+        TEST(test_failures),
       }
   };
 }