From 6a918f0827a6e8806f77e39e0348b1a2abed71f2 Mon Sep 17 00:00:00 2001
From: "Claudius \"keldu\" Holeksa" <mail@keldu.de>
Date: Fri, 19 Dec 2025 14:11:57 +0100
Subject: Rewriting large portion for simpler approach

---
 lib/core/tests/vtk_write.cpp | 28 ++++++++++++++++++++++++++++
 1 file changed, 28 insertions(+)

(limited to 'lib/core/tests/vtk_write.cpp')

diff --git a/lib/core/tests/vtk_write.cpp b/lib/core/tests/vtk_write.cpp
index 0df9998..231fd37 100644
--- a/lib/core/tests/vtk_write.cpp
+++ b/lib/core/tests/vtk_write.cpp
@@ -61,4 +61,32 @@ SAW_TEST("VTK Write test example"){
 
 	// using Type = typename parameter_pack_type<i,T...>::type;
 }
+
+SAW_TEST("VTK Write raw test example"){
+	using namespace kel;
+
+	// write_vtk();
+
+	std::stringstream sstream;
+
+	saw::data<sch::Array<sch::MacroStruct<sch::T,2>, 2>> cells{{{2u,2u}}};
+
+	auto meta = cells.dims();
+
+	auto& cell_0 = cells.at({{{0,0}}});
+	cell_0.template get<"velocity">()= {{0.5,-0.1}};
+	cell_0.template get<"pressure">().set(1.1);
+
+	auto eov = lbm::impl::lbm_vtk_writer_raw<sch::MacroStruct<sch::T,2u>,2u>::apply(sstream, &cell_0, meta);
+	SAW_EXPECT(eov.is_value(), "vtk writer failed to write");
+
+	// I want to print it to see it for myself. For now I have no tooling to more easily view associated and potentially generated files
+	std::cout<<sstream.str()<<std::endl;
+
+	static std::string_view comparison_str = "# vtk DataFile Version 3.0\nLBM File\nASCII\nDATASET STRUCTURED_POINTS\nSPACING 1.0 1.0 1.0\nORIGIN 0.0 0.0 0.0\nDIMENSIONS 2 2 1\nPOINT_DATA 4\n\nVECTORS velocity float\n0.5 -0.1 0\n0 0 0\n0 0 0\n0 0 0\nSCALARS pressure float\nLOOKUP_TABLE default\n1.1\n0\n0\n0\n";
+	SAW_EXPECT(sstream.str() == comparison_str, "Expected different encoding");
+
+	// using Type = typename parameter_pack_type<i,T...>::type;
+}
+
 }
-- 
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