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# Regina - A Normal Surface Theory Calculator
# Python Test Suite Component
#
# Copyright (c) 2007-2025, Ben Burton
# For further details contact Ben Burton (bab@debian.org).
#
# Provides detailed tests for C++ Swappable types.
#
# This file is a single component of Regina's python test suite. To run
# the python test suite, move to the main python directory in the source
# tree and run "make check".
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License as
# published by the Free Software Foundation; either version 2 of the
# License, or (at your option) any later version.
#
# As an exception, when this program is distributed through (i) the
# App Store by Apple Inc.; (ii) the Mac App Store by Apple Inc.; or
# (iii) Google Play by Google Inc., then that store may impose any
# digital rights management, device limits and/or redistribution
# restrictions that are required by its terms of service.
#
# This program is distributed in the hope that it will be useful, but
# WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
# General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <https://www.gnu.org/licenses/>.
a = ExampleLink.trefoil(); b = ExampleLink.figureEight()
print(a.size(), b.size(), '|', a.jones(), '|', b.jones())
swap(a, b)
print(a.size(), b.size(), '|', a.jones(), '|', b.jones())
a.swap(b)
print(a.size(), b.size(), '|', a.jones(), '|', b.jones())
print()
a = Example5.sphere(); b = Example5.ballBundle()
print(a.size(), b.size(), '|', a.homology(), '|', b.homology())
swap(a, b)
print(a.size(), b.size(), '|', a.homology(), '|', b.homology())
a.swap(b)
print(a.size(), b.size(), '|', a.homology(), '|', b.homology())
print()
a = Example3.weberSeifert(); b = Example3.figureEight()
print(a.size(), b.size(), '|', a.homology(), '|', b.homology())
swap(a, b)
print(a.size(), b.size(), '|', a.homology(), '|', b.homology())
a.swap(b)
print(a.size(), b.size(), '|', a.homology(), '|', b.homology())
print()
a = ExampleSnapPea.figureEight(); b = ExampleSnapPea.whiteheadLink()
print(a.countCusps(), b.countCusps(), '|', '%.4f'%a.volume(), '|', '%.4f'%b.volume())
swap(a, b)
print(a.countCusps(), b.countCusps(), '|', '%.4f'%a.volume(), '|', '%.4f'%b.volume())
a.swap(b)
print(a.countCusps(), b.countCusps(), '|', '%.4f'%a.volume(), '|', '%.4f'%b.volume())
print()
# The following examples should all nullify the SnapPea triangulation,
# since they will fall back to the Triangulation<3> swap function.
a = ExampleSnapPea.figureEight(); b = Example3.whiteheadLink()
print(a.size(), b.size(), a.isNull())
swap(a, b)
print(a.size(), b.size(), a.isNull())
print()
a = ExampleSnapPea.figureEight(); b = Example3.whiteheadLink()
print(a.size(), b.size(), a.isNull())
swap(b, a)
print(a.size(), b.size(), a.isNull())
print()
a = ExampleSnapPea.figureEight(); b = Example3.whiteheadLink()
print(a.size(), b.size(), a.isNull())
# Note: a.swap(b) is not recognised by python, since it seems that
# SnapPeaTriangulation's swap() member hides Triangulation<3>'s swap() member.
b.swap(a)
print(a.size(), b.size(), a.isNull())
print()
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