From 16c1198f8fb401c3a98d927053fb2d29c2ce5f91 Mon Sep 17 00:00:00 2001
From: "Claudius \"keldu\" Holeksa" <mail@keldu.de>
Date: Fri, 20 Mar 2026 18:17:55 +0100
Subject: Too much time spent on downcasts, but well. Here I am.

---
 lib/core/tests/math.cpp | 26 ++++++++++++++++++++++++--
 1 file changed, 24 insertions(+), 2 deletions(-)

(limited to 'lib/core/tests')

diff --git a/lib/core/tests/math.cpp b/lib/core/tests/math.cpp
index 738d637..7c9dc14 100644
--- a/lib/core/tests/math.cpp
+++ b/lib/core/tests/math.cpp
@@ -1,5 +1,6 @@
 #include <forstio/test/suite.hpp>
 
+#include <iostream>
 #include "../c++/math/n_linear.hpp"
 
 namespace {
@@ -7,13 +8,34 @@ namespace sch {
 using namespace saw::schema;
 }
 
-SAW_TEST("Math 2-Linear"){
+SAW_TEST("Math 1-Linear"){
 	using namespace kel;
+	
+	saw::data<sch::FixedArray<sch::Vector<sch::Float64,1u>,2u>> field;
+	{
+		field.at({{0u}}).at({{0u}}).set(-1.0);
+		field.at({{1u}}).at({{0u}}).set(2.0);
+	}
+	saw::data<sch::Vector<sch::Float64,1u>> pos;
+	pos.at({{0u}}).set(0.3);
+}
 
-	saw::data<sch::FixedArray<sch::Vector<sch::Float64,2u>,32u,32u>> field;
+SAW_TEST("Math/Floor Index from Pos"){
+	using namespace kel;
 
 	saw::data<sch::Vector<sch::Float64,2u>> pos;
 
+	{
+		pos.at({{0u}}) = 43.999;
+		pos.at({{1u}}) = -50.0;
+	}
+
+	auto ind = lbm::floor_index_from_position(pos);
+	for(uint64_t i = 0u; i < 2u; ++i){
+		std::cout<<ind.at({{i}}).get()<<" ";
+	}
+	std::cout<<std::endl;
+
 	SAW_EXPECT(true, "Default true check");
 }
 
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