From c68bcca3f3755f44e5fe543dea59fdfb607550c7 Mon Sep 17 00:00:00 2001
From: Andreas Salzburger <asalzburger@gmail.com>
Date: Thu, 5 Dec 2024 11:52:54 +0100
Subject: [PATCH] Update
 Tests/UnitTests/Core/Visualization/Interpolation3DTests.cpp

Co-authored-by: coderabbitai[bot] <136622811+coderabbitai[bot]@users.noreply.github.com>
---
 .../Core/Visualization/Interpolation3DTests.cpp    | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/Tests/UnitTests/Core/Visualization/Interpolation3DTests.cpp b/Tests/UnitTests/Core/Visualization/Interpolation3DTests.cpp
index bbac6043f1e..cc50385cf15 100644
--- a/Tests/UnitTests/Core/Visualization/Interpolation3DTests.cpp
+++ b/Tests/UnitTests/Core/Visualization/Interpolation3DTests.cpp
@@ -73,6 +73,20 @@ BOOST_AUTO_TEST_CASE(SplineInterpolationArray) {
   BOOST_CHECK_EQUAL(trajectory.size(), 108);
 }
 
+BOOST_AUTO_TEST_CASE(SplineInterpolationErrors) {
+  std::vector<std::array<double, 3u>> inputs;
+  
+  // Test with single point
+  inputs.push_back({0., 0., 0.});
+  auto result = Acts::Interpolation3D::spline(inputs, 10);
+  BOOST_CHECK_EQUAL(result.size(), 1);
+  
+  // Test with two points
+  inputs.push_back({1., 1., 1.});
+  result = Acts::Interpolation3D::spline(inputs, 10);
+  BOOST_CHECK_EQUAL(result.size(), 2);
+}
+
 BOOST_AUTO_TEST_SUITE_END()
 
 }  // namespace Acts::Test