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# Regina - A Normal Surface Theory Calculator
# Python Test Suite Component
#
# Copyright (c) 2023-2025, Ben Burton
# For further details contact Ben Burton (bab@debian.org).
#
# Tests flags and flag sets.
#
# 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/>.
def evalObj(x):
if x:
print(x, '-> True')
else:
print(x, '-> False')
def evalFlag(x):
# Evaluate as a raw enum value:
evalObj(x)
# Evaluate as a rich flags object:
evalObj(x | x)
evalFlag(regina.CensusPurge.Nil)
evalFlag(regina.CensusPurge.NonMinimal)
evalFlag(regina.AngleAlg.Default)
evalFlag(regina.AngleAlg.Tree)
evalFlag(regina.HyperList.Default)
evalFlag(regina.HyperList.Vertex)
evalFlag(regina.HyperAlg.Default)
evalFlag(regina.HyperAlg.VertexDD)
evalFlag(regina.NormalList.Default)
evalFlag(regina.NormalList.Fundamental)
evalFlag(regina.NormalAlg.Default)
evalFlag(regina.NormalAlg.VertexTree)
evalFlag(regina.SurfaceExport.Nil)
evalFlag(regina.SurfaceExport.Name)
# Some enum types that are NOT intended to be used as flags:
evalObj(regina.NormalCoords.Standard) # value is zero
evalObj(regina.NormalCoords.Quad) # value is non-zero
evalObj(regina.Triangle3.Type.Unknown) # value is zero
evalObj(regina.Triangle3.Type.Parachute) # value is non-zero
# Verify that boolean combinations of flags are behaving as expected:
t = Example3.lst(3,4)
print(NormalSurfaces(t, NormalCoords.Standard))
print(NormalSurfaces(t, NormalCoords.Standard, NormalList.Default))
print(NormalSurfaces(t, NormalCoords.Standard, NormalList.Vertex))
print(NormalSurfaces(t, NormalCoords.Standard, NormalList.Fundamental))
print(NormalSurfaces(t, NormalCoords.Standard, NormalList.Vertex | NormalList.ImmersedSingular))
print(NormalSurfaces(t, NormalCoords.Standard, NormalList.Fundamental | NormalList.ImmersedSingular))
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