Shader: Add module resolver + use modules for engine shaders

tests/Engine/Core/VirtualDirectoryTest.cpp

@@ -0,0 +1,71 @@
+#include <Nazara/Core/VirtualDirectory.hpp>
+#include <catch2/catch.hpp>
+#include <random>
+
+TEST_CASE("VirtualDirectory", "[Core][VirtualDirectory]")
+{
+	std::shared_ptr<Nz::VirtualDirectory> virtualDir = std::make_shared<Nz::VirtualDirectory>();
+
+	WHEN("Iterating it, it only has . and ..")
+	{
+		bool failed = false;
+		virtualDir->Foreach([&](const std::string& name, const Nz::VirtualDirectory::Entry& /*entry*/)
+		{
+			if (name != "." && name != "..")
+				failed = true;
+		}, true);
+
+		CHECK_FALSE(failed);
+	}
+	AND_WHEN("Iterating it including dots, we get them")
+	{
+		bool failed = false;
+		virtualDir->Foreach([&](const std::string& name, const Nz::VirtualDirectory::Entry& /*entry*/)
+		{
+			failed = true;
+		});
+
+		CHECK_FALSE(failed);
+	}
+	AND_WHEN("We try to retrieve a file, it fails")
+	{
+		Nz::VirtualDirectory::Entry entry;
+		CHECK_FALSE(virtualDir->GetEntry("File.bin", &entry));
+		CHECK_FALSE(virtualDir->GetEntry("Foo/File.bin", &entry));
+		CHECK_FALSE(virtualDir->GetEntry("Foo/Bar/File.bin", &entry));
+
+		virtualDir->StoreDirectory("Foo/Bar", std::make_shared<Nz::VirtualDirectory>());
+
+		CHECK(virtualDir->GetEntry("Foo", &entry));
+		CHECK(std::holds_alternative<Nz::VirtualDirectory::VirtualDirectoryEntry>(entry));
+		CHECK(virtualDir->GetEntry("Foo/Bar", &entry));
+		CHECK(std::holds_alternative<Nz::VirtualDirectory::VirtualDirectoryEntry>(entry));
+		CHECK_FALSE(virtualDir->GetEntry("Foo/Bar/File.bin", &entry));
+	}
+
+	WHEN("Storing a file")
+	{
+		std::mt19937 randGen(std::random_device{}());
+		std::vector<Nz::UInt8> randomData;
+		for (std::size_t i = 0; i < 1024; ++i)
+		{
+			unsigned int data = randGen();
+			randomData.push_back((data & 0x000000FF) >>  0);
+			randomData.push_back((data & 0x0000FF00) >>  8);
+			randomData.push_back((data & 0x00FF0000) >> 16);
+			randomData.push_back((data & 0xFF000000) >> 24);
+		}
+
+		virtualDir->StoreFile("File.bin", randomData);
+
+		WHEN("We retrieve it")
+		{
+			Nz::VirtualDirectory::Entry entry;
+			REQUIRE(virtualDir->GetEntry("File.bin", &entry));
+
+			REQUIRE(std::holds_alternative<Nz::VirtualDirectory::FileContentEntry>(entry));
+			const auto& contentEntry = std::get<Nz::VirtualDirectory::FileContentEntry>(entry);
+			CHECK(std::equal(randomData.begin(), randomData.end(), contentEntry.data->begin(), contentEntry.data->end()));
+		}
+	}
+}