From abeea9920c11231ed24db00e9f68b4490c12a61b Mon Sep 17 00:00:00 2001
From: "Claudius \"keldu\" Holeksa" <mail@keldu.de>
Date: Thu, 10 Apr 2025 15:21:55 +0200
Subject: Reworking from AoS to SoA for data handling

---
 tests/equilibrium.cpp | 30 ++++++++++++++++++++++++++++++
 1 file changed, 30 insertions(+)
 create mode 100644 tests/equilibrium.cpp

(limited to 'tests/equilibrium.cpp')

diff --git a/tests/equilibrium.cpp b/tests/equilibrium.cpp
new file mode 100644
index 0000000..88542d2
--- /dev/null
+++ b/tests/equilibrium.cpp
@@ -0,0 +1,30 @@
+#include <forstio/test/suite.hpp>
+
+#include "../c++/equilibrium.hpp"
+
+
+namespace {
+
+template<typename Descriptor>
+void check_equilibrium(){
+	using namespace kel;
+
+	using dfi = df_info<lbm::sch::Float64,Descriptor>;
+
+	saw::data<lbm::sch::Float64> rho{1.0};
+	saw::data<lbm::sch::FixedArray<lbm::sch::Float64,>> vel;
+	for(saw::data<lbm::sch::UInt64> i{0u}; i < {Descriptor::D}; ++i){
+		vel.at(i) = {0.0};
+	}
+	auto eq = lbm::equilibrium<lbm::sch::Float64,Descriptor>(rho,vel);
+
+	for(saw::data<lbm::sch::UInt64> i{0u}; i < {Descriptor::Q}; ++i){
+		SAW_CHECK(eq(i) == dfi::weights[i.get()], "No velocity and normalized rho should be exactly the weights");
+	}
+}
+
+SAW_TEST("Equilibrium At rest D1Q3"){
+	using namespace kel;
+	check_equilibrium<lbm::sch::Descriptor<1,3>>();
+}
+}
-- 
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