From 9e37ff62b668694f705a8d132469f40ead9f6f0f Mon Sep 17 00:00:00 2001
From: "Claudius \"keldu\" Holeksa" <mail@keldu.de>
Date: Thu, 5 Jun 2025 13:09:07 +0200
Subject: Dangling changes

---
 tests/particles.cpp | 44 +++++++++++++++++++++++++++++++++++++++++++-
 tests/vtk_write.cpp |  4 ++++
 2 files changed, 47 insertions(+), 1 deletion(-)

(limited to 'tests')

diff --git a/tests/particles.cpp b/tests/particles.cpp
index 873b8ad..260caf0 100644
--- a/tests/particles.cpp
+++ b/tests/particles.cpp
@@ -36,7 +36,49 @@ SAW_TEST("Verlet integration test"){
 	using namespace kel;
 	lbm::particle_system<sch::T,2,sch::Particle<sch::T,2>> system;
 
-	// system.step();
+	{
+		saw::data<sch::Particle<sch::T,2>> particle;
+		auto& rb = particle.template get<"rigid_body">();
+		auto& acc = rb.template get<"acceleration">();
+		auto& pos = rb.template get<"position">();
+		auto& pos_old = rb.template get<"position_old">();
+		pos = {{1e-1,1e-1}};
+		pos_old = {{0.0, 0.0}};
+		acc = {{0.0,-1e1}};
+
+		auto eov = system.add_particle(std::move(particle));
+		SAW_EXPECT(eov.is_value(), "Expected no error :)");
+	}
+	{
+		auto& p = system.at({0u});
+		auto& rb = p.template get<"rigid_body">();
+		auto& pos = rb.template get<"position">();
+
+		for(saw::data<sch::UInt64> i{0u}; i < saw::data<sch::UInt64>{2u}; ++i){
+			std::cout<<pos.at(i).get()<<" ";
+		}
+		std::cout<<std::endl;
+	}
+
+	for(uint64_t i = 0u; i < 360u; ++i){
+		system.step(saw::data<sch::T>{1e-2});
+
+		{
+			auto& p = system.at({0u});
+			auto& rb = p.template get<"rigid_body">();
+			auto& pos = rb.template get<"position">();
+
+			for(saw::data<sch::UInt64> i{0u}; i < saw::data<sch::UInt64>{2u}; ++i){
+				std::cout<<pos.at(i).get()<<" ";
+			}
+			std::cout<<"\n";
+
+			if(pos.at({1u}).get() < 0.0){
+				break;
+			}
+		}
+
+	}
 
 }
 }
diff --git a/tests/vtk_write.cpp b/tests/vtk_write.cpp
index 49c9c52..b2e30f0 100644
--- a/tests/vtk_write.cpp
+++ b/tests/vtk_write.cpp
@@ -53,8 +53,12 @@ SAW_TEST("VTK Write test example"){
 	auto eov = lbm::impl::lbm_vtk_writer<sch::Array<sch::MacroStruct<sch::T,2>, 2>>::apply(sstream, cells);
 	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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