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/**************************************************************************
* *
* Regina - A Normal Surface Theory Calculator *
* Test Suite *
* *
* Copyright (c) 1999-2025, Ben Burton *
* For further details contact Ben Burton (bab@debian.org). *
* *
* 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/>. *
* *
**************************************************************************/
#include "manifold/manifold.h"
#include "subcomplex/standardtri.h"
#include "triangulation/dim3.h"
#include "testhelper.h"
using regina::Manifold;
using regina::StandardTriangulation;
using regina::Triangulation;
static void testRecognition(const char* dehydration,
const char* triName, const char* mfdName) {
SCOPED_TRACE_CSTRING(triName);
auto std = StandardTriangulation::recognise(
Triangulation<3>::rehydrate(dehydration));
ASSERT_NE(std, nullptr);
EXPECT_EQ(std->name(), triName);
auto mfd = std->manifold();
ASSERT_NE(mfd, nullptr);
EXPECT_EQ(mfd->name(), mfdName);
}
void testRecognitionSig(const char* isoSig,
const char* triName, const char* mfdName) {
SCOPED_TRACE_CSTRING(triName);
auto std = StandardTriangulation::recognise(
Triangulation<3>::fromIsoSig(isoSig));
ASSERT_NE(std, nullptr);
EXPECT_EQ(std->name(), triName);
auto mfd = std->manifold();
ASSERT_NE(mfd, nullptr);
EXPECT_EQ(mfd->name(), mfdName);
}
TEST(StandardTriangulationTest, recognition) {
// Closed orientable triangulations:
testRecognition("baaaawr", "C(1)", "S3");
testRecognition("baaaawf", "L(1,0)", "S3");
testRecognition("cabbbbxxt", "L'(3,1)", "L(3,1)");
testRecognition("cacabbwxf", "L(3,1) (1)", "L(3,1)");
testRecognition("cacabbfxn", "L(3,1) (2)", "L(3,1)");
testRecognition("fkkaaabcdeefaqhan", "L(29,8)", "L(29,8)");
testRecognition("fffaabcdeeeaaaakn", "C~(5)", "S3/Q20");
testRecognition("fjgaaacddeeffthon", "A(3,-2 | 3,-1)", "S3/P'72");
testRecognition("fdfaabcedeeaategk", "J(2 | 2,-1)", "S3/P'72");
testRecognition("fbnaabcedeemgxbdu", "X(2 | 2,-1)", "S3/D40");
testRecognition("fapaaceddeegngoon", "P'(0)", "S3/P48");
testRecognition("fapaadecedenbokbo", "P(0)", "S3/P120");
testRecognition("jhnafaabdgfghhiiihkagrkvskr",
"B(T7:1 | -1,0 | -3,-1)", "T x I / [ -4,-3 | -1,-1 ]");
testRecognition("knncgaabcgifjhhjijmgtnnasgana",
"Plugged Torus Bundle [T7:1 | Tri, Mob(v)]",
"SFS [A: (2,1)] / [ -1,-2 | 0,1 ]");
testRecognition("jlkijaaabdefghhiifanavrumvb",
"Blocked SFS [Tri, Tri, LST(1, 2, 3), LST(1, 3, 4)]",
"SFS [RP2/n2: (3,1) (4,3)]");
testRecognition("jnnagaabcgfihhihimgtsonkjgr",
"Blocked SFS [Tri, Tri, Tri, Mob(v)]", "SFS [T: (2,3)]");
testRecognition("jfkinaaabdeehghiifhgtqitrtn",
"Blocked SFS Pair [Tri, LST(2, 3, 5), Mob(v) | "
"Tri, LST(1, 2, 3), Mob(v)]",
"SFS [D: (2,1) (2,1)] U/m SFS [D: (2,1) (5,2)], "
"m = [ 1,1 | 0,1 ]");
testRecognition("jofdiaabcceffhiiiedkgiilpsw",
"Blocked SFS Triple [Tri, Mob(v), Mob(v) | Tri, Mob(v) | "
"Tri, Mob(v), Mob(v)]",
"SFS [D: (2,1) (2,1)] U/m SFS [A: (2,1)] U/n "
"SFS [D: (2,1) (2,1)], m = [ 0,1 | 1,0 ], "
"n = [ 1,1 | 1,0 ]");
// Bounded orientable triangulations:
testRecognitionSig("pfLPILKfLAPidedffhikmlnoorawhwnxlkcahr",
"Blocked SFS [Tri, Tri, Tri, Tri, Tri]",
"SFS [Or, g=0 + 3 punctures: (1,2)]");
// Closed non-orientable triangulations:
testRecognition("dafbcccxbqg", "N(3,2)", "RP2 x S1");
testRecognition("ihnabbdghgfhhgakaxdneel",
"B(T6:1 | -3,-2 | -2,-1)", "T x I / [ 3,2 | 2,1 ]");
testRecognition("icoaladddggghhfbwabwaxf",
"Blocked SFS [Ref(2), LST(1, 2, 3), LST(1, 2, 3)]",
"SFS [D_: (3,1) (3,2)]");
testRecognition("kcoelabadddgggijjjfbwabwafehe",
"Blocked SFS [Tri, Ref(2), LST(1, 2, 3)]",
"SFS [M_/n2: (3,1)]");
testRecognition("kcomlaaadddgggjijjfbwabwabrwa",
"Blocked SFS [Ref(1), Ref(2), LST(1, 2, 3)]",
"SFS [A=: (3,1)]");
testRecognition("kjgmlaaacddfhhijjjffthmvooloh",
"Blocked SFS Pair [Tri, LST(1, 2, 3), Mob(v) | "
"Tri, Ref(1), Mob(v)]",
"SFS [D: (2,1) (3,1)] U/m SFS [A_: (2,1)], "
"m = [ 0,1 | 1,0 ]");
// Ideal triangulations:
testRecognition("cabbbbteh",
"SnapPea m004", "Figure eight knot complement");
}
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