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Differential D5594 Diff 17587 extern/quadriflow/3rd/lemon-1.3.1/test/path_test.cc

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extern/quadriflow/3rd/lemon-1.3.1/test/path_test.cc

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/* -*- mode: C++; indent-tabs-mode: nil; -*-
*
* This file is a part of LEMON, a generic C++ optimization library.
*
* Copyright (C) 2003-2013
* Egervary Jeno Kombinatorikus Optimalizalasi Kutatocsoport
* (Egervary Research Group on Combinatorial Optimization, EGRES).
*
* Permission to use, modify and distribute this software is granted
* provided that this copyright notice appears in all copies. For
* precise terms see the accompanying LICENSE file.
*
* This software is provided "AS IS" with no warranty of any kind,
* express or implied, and with no claim as to its suitability for any
* purpose.
*
*/
#include <string>
#include <iostream>
#include <lemon/concepts/path.h>
#include <lemon/concepts/digraph.h>
#include <lemon/concept_check.h>
#include <lemon/path.h>
#include <lemon/list_graph.h>
#include "test_tools.h"
using namespace std;
using namespace lemon;
template <typename GR>
void checkConcepts() {
checkConcept<concepts::Path<GR>, concepts::Path<GR> >();
checkConcept<concepts::Path<GR>, Path<GR> >();
checkConcept<concepts::Path<GR>, SimplePath<GR> >();
checkConcept<concepts::Path<GR>, StaticPath<GR> >();
checkConcept<concepts::Path<GR>, ListPath<GR> >();
}
// Conecpt checking for path structures
void checkPathConcepts() {
checkConcepts<concepts::Digraph>();
checkConcepts<ListDigraph>();
}
// Check if proper copy consructor is called (use valgrind for testing)
template <typename GR, typename P1, typename P2>
void checkCopy(typename GR::Arc a) {
P1 p;
p.addBack(a);
P1 q;
q = p;
P1 r(p);
P2 q2;
q2 = p;
P2 r2(p);
}
// Tests for copy constructors and assignment operators of paths
void checkPathCopy() {
ListDigraph g;
ListDigraph::Arc a = g.addArc(g.addNode(), g.addNode());
typedef Path<ListDigraph> Path1;
typedef SimplePath<ListDigraph> Path2;
typedef ListPath<ListDigraph> Path3;
typedef StaticPath<ListDigraph> Path4;
checkCopy<ListDigraph, Path1, Path2>(a);
checkCopy<ListDigraph, Path1, Path3>(a);
checkCopy<ListDigraph, Path1, Path4>(a);
checkCopy<ListDigraph, Path2, Path1>(a);
checkCopy<ListDigraph, Path2, Path3>(a);
checkCopy<ListDigraph, Path2, Path4>(a);
checkCopy<ListDigraph, Path3, Path1>(a);
checkCopy<ListDigraph, Path3, Path2>(a);
checkCopy<ListDigraph, Path3, Path4>(a);
}
// Class for testing path functions
class CheckPathFunctions {
typedef ListDigraph GR;
DIGRAPH_TYPEDEFS(GR);
GR gr;
const GR& cgr;
Node n1, n2, n3, n4;
Node tmp_n;
Arc a1, a2, a3, a4;
Arc tmp_a;
public:
CheckPathFunctions() : cgr(gr) {
n1 = gr.addNode();
n2 = gr.addNode();
n3 = gr.addNode();
n4 = gr.addNode();
a1 = gr.addArc(n1, n2);
a2 = gr.addArc(n2, n3);
a3 = gr.addArc(n3, n4);
a4 = gr.addArc(n4, n1);
}
void run() {
checkBackAndFrontInsertablePath<Path<GR> >();
checkBackAndFrontInsertablePath<ListPath<GR> >();
checkBackInsertablePath<SimplePath<GR> >();
checkListPathSplitAndSplice();
}
private:
template <typename P>
void checkBackInsertablePath() {
// Create and check empty path
P p;
const P& cp = p;
check(cp.empty(), "The path is not empty");
check(cp.length() == 0, "The path is not empty");
// check(cp.front() == INVALID, "Wrong front()");
// check(cp.back() == INVALID, "Wrong back()");
typename P::ArcIt ai(cp);
check(ai == INVALID, "Wrong ArcIt");
check(pathSource(cgr, cp) == INVALID, "Wrong pathSource()");
check(pathTarget(cgr, cp) == INVALID, "Wrong pathTarget()");
check(checkPath(cgr, cp), "Wrong checkPath()");
PathNodeIt<P> ni(cgr, cp);
check(ni == INVALID, "Wrong PathNodeIt");
// Check single-arc path
p.addBack(a1);
check(!cp.empty(), "Wrong empty()");
check(cp.length() == 1, "Wrong length");
check(cp.front() == a1, "Wrong front()");
check(cp.back() == a1, "Wrong back()");
check(cp.nth(0) == a1, "Wrong nth()");
ai = cp.nthIt(0);
check((tmp_a = ai) == a1, "Wrong nthIt()");
check(++ai == INVALID, "Wrong nthIt()");
typename P::ArcIt ai2(cp);
check((tmp_a = ai2) == a1, "Wrong ArcIt");
check(++ai2 == INVALID, "Wrong ArcIt");
check(pathSource(cgr, cp) == n1, "Wrong pathSource()");
check(pathTarget(cgr, cp) == n2, "Wrong pathTarget()");
check(checkPath(cgr, cp), "Wrong checkPath()");
PathNodeIt<P> ni2(cgr, cp);
check((tmp_n = ni2) == n1, "Wrong PathNodeIt");
check((tmp_n = ++ni2) == n2, "Wrong PathNodeIt");
check(++ni2 == INVALID, "Wrong PathNodeIt");
// Check adding more arcs
p.addBack(a2);
p.addBack(a3);
check(!cp.empty(), "Wrong empty()");
check(cp.length() == 3, "Wrong length");
check(cp.front() == a1, "Wrong front()");
check(cp.back() == a3, "Wrong back()");
check(cp.nth(0) == a1, "Wrong nth()");
check(cp.nth(1) == a2, "Wrong nth()");
check(cp.nth(2) == a3, "Wrong nth()");
typename P::ArcIt ai3(cp);
check((tmp_a = ai3) == a1, "Wrong ArcIt");
check((tmp_a = ++ai3) == a2, "Wrong nthIt()");
check((tmp_a = ++ai3) == a3, "Wrong nthIt()");
check(++ai3 == INVALID, "Wrong nthIt()");
ai = cp.nthIt(0);
check((tmp_a = ai) == a1, "Wrong nthIt()");
check((tmp_a = ++ai) == a2, "Wrong nthIt()");
ai = cp.nthIt(2);
check((tmp_a = ai) == a3, "Wrong nthIt()");
check(++ai == INVALID, "Wrong nthIt()");
check(pathSource(cgr, cp) == n1, "Wrong pathSource()");
check(pathTarget(cgr, cp) == n4, "Wrong pathTarget()");
check(checkPath(cgr, cp), "Wrong checkPath()");
PathNodeIt<P> ni3(cgr, cp);
check((tmp_n = ni3) == n1, "Wrong PathNodeIt");
check((tmp_n = ++ni3) == n2, "Wrong PathNodeIt");
check((tmp_n = ++ni3) == n3, "Wrong PathNodeIt");
check((tmp_n = ++ni3) == n4, "Wrong PathNodeIt");
check(++ni3 == INVALID, "Wrong PathNodeIt");
// Check arc removal and addition
p.eraseBack();
p.eraseBack();
p.addBack(a2);
check(!cp.empty(), "Wrong empty()");
check(cp.length() == 2, "Wrong length");
check(cp.front() == a1, "Wrong front()");
check(cp.back() == a2, "Wrong back()");
check(pathSource(cgr, cp) == n1, "Wrong pathSource()");
check(pathTarget(cgr, cp) == n3, "Wrong pathTarget()");
check(checkPath(cgr, cp), "Wrong checkPath()");
// Check clear()
p.clear();
check(cp.empty(), "The path is not empty");
check(cp.length() == 0, "The path is not empty");
// Check inconsistent path
p.addBack(a4);
p.addBack(a2);
p.addBack(a1);
check(!cp.empty(), "Wrong empty()");
check(cp.length() == 3, "Wrong length");
check(cp.front() == a4, "Wrong front()");
check(cp.back() == a1, "Wrong back()");
check(pathSource(cgr, cp) == n4, "Wrong pathSource()");
check(pathTarget(cgr, cp) == n2, "Wrong pathTarget()");
check(!checkPath(cgr, cp), "Wrong checkPath()");
}
template <typename P>
void checkBackAndFrontInsertablePath() {
// Include back insertable test cases
checkBackInsertablePath<P>();
// Check front and back insertion
P p;
const P& cp = p;
p.addFront(a4);
p.addBack(a1);
p.addFront(a3);
check(!cp.empty(), "Wrong empty()");
check(cp.length() == 3, "Wrong length");
check(cp.front() == a3, "Wrong front()");
check(cp.back() == a1, "Wrong back()");
check(cp.nth(0) == a3, "Wrong nth()");
check(cp.nth(1) == a4, "Wrong nth()");
check(cp.nth(2) == a1, "Wrong nth()");
typename P::ArcIt ai(cp);
check((tmp_a = ai) == a3, "Wrong ArcIt");
check((tmp_a = ++ai) == a4, "Wrong nthIt()");
check((tmp_a = ++ai) == a1, "Wrong nthIt()");
check(++ai == INVALID, "Wrong nthIt()");
ai = cp.nthIt(0);
check((tmp_a = ai) == a3, "Wrong nthIt()");
check((tmp_a = ++ai) == a4, "Wrong nthIt()");
ai = cp.nthIt(2);
check((tmp_a = ai) == a1, "Wrong nthIt()");
check(++ai == INVALID, "Wrong nthIt()");
check(pathSource(cgr, cp) == n3, "Wrong pathSource()");
check(pathTarget(cgr, cp) == n2, "Wrong pathTarget()");
check(checkPath(cgr, cp), "Wrong checkPath()");
// Check eraseFront()
p.eraseFront();
p.addBack(a2);
check(!cp.empty(), "Wrong empty()");
check(cp.length() == 3, "Wrong length");
check(cp.front() == a4, "Wrong front()");
check(cp.back() == a2, "Wrong back()");
check(cp.nth(0) == a4, "Wrong nth()");
check(cp.nth(1) == a1, "Wrong nth()");
check(cp.nth(2) == a2, "Wrong nth()");
typename P::ArcIt ai2(cp);
check((tmp_a = ai2) == a4, "Wrong ArcIt");
check((tmp_a = ++ai2) == a1, "Wrong nthIt()");
check((tmp_a = ++ai2) == a2, "Wrong nthIt()");
check(++ai2 == INVALID, "Wrong nthIt()");
ai = cp.nthIt(0);
check((tmp_a = ai) == a4, "Wrong nthIt()");
check((tmp_a = ++ai) == a1, "Wrong nthIt()");
ai = cp.nthIt(2);
check((tmp_a = ai) == a2, "Wrong nthIt()");
check(++ai == INVALID, "Wrong nthIt()");
check(pathSource(cgr, cp) == n4, "Wrong pathSource()");
check(pathTarget(cgr, cp) == n3, "Wrong pathTarget()");
check(checkPath(cgr, cp), "Wrong checkPath()");
}
void checkListPathSplitAndSplice() {
// Build a path with spliceFront() and spliceBack()
ListPath<GR> p1, p2, p3, p4;
p1.addBack(a3);
p1.addFront(a2);
p2.addBack(a1);
p1.spliceFront(p2);
p3.addFront(a4);
p1.spliceBack(p3);
check(p1.length() == 4, "Wrong length");
check(p1.front() == a1, "Wrong front()");
check(p1.back() == a4, "Wrong back()");
ListPath<GR>::ArcIt ai(p1);
check((tmp_a = ai) == a1, "Wrong ArcIt");
check((tmp_a = ++ai) == a2, "Wrong nthIt()");
check((tmp_a = ++ai) == a3, "Wrong nthIt()");
check((tmp_a = ++ai) == a4, "Wrong nthIt()");
check(++ai == INVALID, "Wrong nthIt()");
check(checkPath(cgr, p1), "Wrong checkPath()");
// Check split()
p1.split(p1.nthIt(2), p2);
check(p1.length() == 2, "Wrong length");
ai = p1.nthIt(0);
check((tmp_a = ai) == a1, "Wrong ArcIt");
check((tmp_a = ++ai) == a2, "Wrong nthIt()");
check(++ai == INVALID, "Wrong nthIt()");
check(checkPath(cgr, p1), "Wrong checkPath()");
check(p2.length() == 2, "Wrong length");
ai = p2.nthIt(0);
check((tmp_a = ai) == a3, "Wrong ArcIt");
check((tmp_a = ++ai) == a4, "Wrong nthIt()");
check(++ai == INVALID, "Wrong nthIt()");
check(checkPath(cgr, p2), "Wrong checkPath()");
// Check split() and splice()
p1.spliceFront(p2);
p1.split(p1.nthIt(2), p2);
p2.split(p2.nthIt(1), p3);
p2.spliceBack(p1);
p2.splice(p2.nthIt(1), p3);
check(p2.length() == 4, "Wrong length");
check(p2.front() == a1, "Wrong front()");
check(p2.back() == a4, "Wrong back()");
ai = p2.nthIt(0);
check((tmp_a = ai) == a1, "Wrong ArcIt");
check((tmp_a = ++ai) == a2, "Wrong nthIt()");
check((tmp_a = ++ai) == a3, "Wrong nthIt()");
check((tmp_a = ++ai) == a4, "Wrong nthIt()");
check(++ai == INVALID, "Wrong nthIt()");
check(checkPath(cgr, p2), "Wrong checkPath()");
}
};
int main() {
checkPathConcepts();
checkPathCopy();
CheckPathFunctions cpf;
cpf.run();
return 0;
}