shader copy to output

tests/ShaderDep/ShaderDep.cpp

@@ -0,0 +1,58 @@
+/*
+Crafter® Build
+Copyright (C) 2026 Catcrafts®
+Catcrafts.net
+
+LGPL-3.0-only.
+
+Verifies that when an executable consumes a library that registers a shader,
+the resulting .spv ships in the executable's bin dir alongside the binary —
+not just in the lib's own bin dir, where the runtime exe wouldn't find it.
+*/
+
+import std;
+import Crafter.Build;
+#include "../_shared/TestUtil.h"
+namespace fs = std::filesystem;
+using namespace TestUtil;
+using namespace Crafter;
+
+int main() {
+    try {
+        fs::path src = fs::current_path() / "tests" / "ShaderDep" / "inner";
+        Configuration cfg = LoadFixture("ShaderDep", src);
+
+        auto br = BuildOnce(cfg);
+        if (!br.result.empty()) {
+            std::println(std::cerr, "build failed:\n{}", br.result);
+            return 1;
+        }
+
+        fs::path libSpv = cfg.dependencies[0]->BinDir() / "triangle.spv";
+        fs::path appSpv = cfg.BinDir() / "triangle.spv";
+
+        if (!fs::exists(libSpv)) {
+            std::println(std::cerr, "lib .spv missing at {}", libSpv.string());
+            return 1;
+        }
+        if (!fs::exists(appSpv)) {
+            std::println(std::cerr, "exe .spv missing at {}", appSpv.string());
+            return 1;
+        }
+
+        std::ifstream f(appSpv, std::ios::binary);
+        unsigned char magic[4] = {};
+        f.read(reinterpret_cast<char*>(magic), 4);
+        if (magic[0] != 0x03 || magic[1] != 0x02 || magic[2] != 0x23 || magic[3] != 0x07) {
+            std::println(std::cerr,
+                "SPIR-V magic mismatch in exe-side copy: got {:#04x} {:#04x} {:#04x} {:#04x}",
+                magic[0], magic[1], magic[2], magic[3]);
+            return 1;
+        }
+
+        return 0;
+    } catch (const std::exception& e) {
+        std::println(std::cerr, "test exception: {}", e.what());
+        return 1;
+    }
+}