OCCT

// Copyright (c) 2026 OPEN CASCADE SAS
//
// This file is part of Open CASCADE Technology software library.
//
// This library is free software; you can redistribute it and/or modify it under
// the terms of the GNU Lesser General Public License version 2.1 as published
// by the Free Software Foundation, with special exception defined in the file
// OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
// distribution for complete text of the license and disclaimer of any warranty.
//
// Alternatively, this file may be used under the terms of Open CASCADE
// commercial license or contractual agreement.

#include <GeomAPI_PointsToBSpline.hxx>

#include <GeomAbs_Shape.hxx>
#include <NCollection_Array1.hxx>
#include <Precision.hxx>
#include <gp_Pnt.hxx>

#include <gtest/gtest.h>

TEST(GeomAPI_PointsToBSpline_Test, DegenerateExplicitParametersResetDoneState)
{
  NCollection_Array1<gp_Pnt> aPoints(1, 3);
  aPoints(1) = gp_Pnt(0.0, 0.0, 0.0);
  aPoints(2) = gp_Pnt(1.0, 0.5, 0.0);
  aPoints(3) = gp_Pnt(2.0, 0.0, 0.0);

  NCollection_Array1<double> aParameters(1, 3);
  aParameters(1) = 2.0;
  aParameters(2) = 2.0;
  aParameters(3) = 2.0;

  GeomAPI_PointsToBSpline anApprox(aPoints, 3, 5, GeomAbs_C2, Precision::Confusion());
  ASSERT_TRUE(anApprox.IsDone());

  EXPECT_NO_THROW(anApprox.Init(aPoints, aParameters, 3, 5, GeomAbs_C2, Precision::Confusion()));
  EXPECT_FALSE(anApprox.IsDone());
}