1 files changed, 66 insertions, 0 deletions
diff --git a/src/tests/test_shader_assets.cc b/src/tests/test_shader_assets.cc
new file mode 100644
index 0000000..42d1c4c
--- /dev/null
+++ b/src/tests/test_shader_assets.cc
@@ -0,0 +1,66 @@
+// This file is part of the 64k demo project.
+// It validates that WGSL shader assets are present and look like valid WGSL.
+
+#include "generated/assets.h"
+#include <cassert>
+#include <cstdio>
+#include <cstring>
+#include <string>
+#include <vector>
+
+bool validate_shader(AssetId id, const char* name, const std::vector<const char*>& expected_keywords) {
+    printf("Validating shader: %s...\n", name);
+    size_t size = 0;
+    const char* data = (const char*)GetAsset(id, &size);
+
+    if (data == nullptr || size == 0) {
+        printf("FAILED: Shader %s is missing or empty!\n", name);
+        return false;
+    }
+
+    std::string code(data, size);
+    for (const char* keyword : expected_keywords) {
+        if (code.find(keyword) == std::string::npos) {
+            printf("FAILED: Shader %s missing expected keyword '%s'!\n", name, keyword);
+            // printf("Code snippet:\n%.100s...\n", data);
+            return false;
+        }
+    }
+
+    printf("PASSED: %s (%zu bytes)\n", name, size);
+    return true;
+}
+
+int main() {
+    printf("--- RUNNING SHADER ASSET VALIDATION ---\n");
+
+    bool all_passed = true;
+
+    // Snippets
+    all_passed &= validate_shader(AssetId::ASSET_SHADER_COMMON_UNIFORMS, "COMMON_UNIFORMS", {"struct", "GlobalUniforms"});
+    all_passed &= validate_shader(AssetId::ASSET_SHADER_SDF_PRIMITIVES, "SDF_PRIMITIVES", {"fn", "sd"});
+    all_passed &= validate_shader(AssetId::ASSET_SHADER_LIGHTING, "LIGHTING", {"fn", "calc"});
+    all_passed &= validate_shader(AssetId::ASSET_SHADER_RAY_BOX, "RAY_BOX", {"fn", "intersect"});
+
+    // Full Shaders (Entry points)
+    all_passed &= validate_shader(AssetId::ASSET_SHADER_RENDERER_3D, "RENDERER_3D", {"@vertex", "vs_main", "@fragment", "fs_main"});
+    all_passed &= validate_shader(AssetId::ASSET_SHADER_MAIN, "MAIN", {"@vertex", "vs_main", "@fragment", "fs_main"});
+    all_passed &= validate_shader(AssetId::ASSET_SHADER_PARTICLE_COMPUTE, "PARTICLE_COMPUTE", {"@compute", "main"});
+    all_passed &= validate_shader(AssetId::ASSET_SHADER_PARTICLE_RENDER, "PARTICLE_RENDER", {"@vertex", "vs_main", "@fragment", "fs_main"});
+    all_passed &= validate_shader(AssetId::ASSET_SHADER_PASSTHROUGH, "PASSTHROUGH", {"@vertex", "vs_main", "@fragment", "fs_main"});
+    all_passed &= validate_shader(AssetId::ASSET_SHADER_ELLIPSE, "ELLIPSE", {"@vertex", "vs_main", "@fragment", "fs_main"});
+    all_passed &= validate_shader(AssetId::ASSET_SHADER_PARTICLE_SPRAY_COMPUTE, "PARTICLE_SPRAY_COMPUTE", {"@compute", "main"});
+    all_passed &= validate_shader(AssetId::ASSET_SHADER_GAUSSIAN_BLUR, "GAUSSIAN_BLUR", {"@vertex", "vs_main", "@fragment", "fs_main"});
+    all_passed &= validate_shader(AssetId::ASSET_SHADER_SOLARIZE, "SOLARIZE", {"@vertex", "vs_main", "@fragment", "fs_main"});
+    all_passed &= validate_shader(AssetId::ASSET_SHADER_DISTORT, "DISTORT", {"@vertex", "vs_main", "@fragment", "fs_main"});
+    all_passed &= validate_shader(AssetId::ASSET_SHADER_CHROMA_ABERRATION, "CHROMA_ABERRATION", {"@vertex", "vs_main", "@fragment", "fs_main"});
+    all_passed &= validate_shader(AssetId::ASSET_SHADER_VISUAL_DEBUG, "VISUAL_DEBUG", {"@vertex", "vs_main", "@fragment", "fs_main"});
+
+    if (!all_passed) {
+        printf("--- SHADER ASSET VALIDATION FAILED ---\n");
+        return 1;
+    }
+
+    printf("--- ALL SHADER ASSETS VALIDATED ---\n");
+    return 0;
+}