Forgot a ton of files in the last commit.

tests/textures.cpp

@@ -0,0 +1,15 @@
+#include <catch2/catch_test_macros.hpp>
+#include <fmt/core.h>
+#include <string>
+#include "textures.hpp"
+
+using namespace fmt;
+
+TEST_CASE("test texture management", "[textures]") {
+  textures::init();
+  auto spider = textures::get("textures_test");
+  REQUIRE(spider.sprite != nullptr);
+  REQUIRE(spider.texture != nullptr);
+
+  auto image = textures::load_image("assets/textures_test.png");
+}