1 | /* -*- C++ -*- |
---|
2 | * |
---|
3 | * This file is a part of LEMON, a generic C++ optimization library |
---|
4 | * |
---|
5 | * Copyright (C) 2003-2008 |
---|
6 | * Egervary Jeno Kombinatorikus Optimalizalasi Kutatocsoport |
---|
7 | * (Egervary Research Group on Combinatorial Optimization, EGRES). |
---|
8 | * |
---|
9 | * Permission to use, modify and distribute this software is granted |
---|
10 | * provided that this copyright notice appears in all copies. For |
---|
11 | * precise terms see the accompanying LICENSE file. |
---|
12 | * |
---|
13 | * This software is provided "AS IS" with no warranty of any kind, |
---|
14 | * express or implied, and with no claim as to its suitability for any |
---|
15 | * purpose. |
---|
16 | * |
---|
17 | */ |
---|
18 | |
---|
19 | #ifndef LEMON_TEST_GRAPH_TEST_H |
---|
20 | #define LEMON_TEST_GRAPH_TEST_H |
---|
21 | |
---|
22 | #include <lemon/graph_utils.h> |
---|
23 | #include "test_tools.h" |
---|
24 | |
---|
25 | namespace lemon { |
---|
26 | |
---|
27 | template<class Graph> |
---|
28 | void checkGraphNodeList(const Graph &G, int cnt) |
---|
29 | { |
---|
30 | typename Graph::NodeIt n(G); |
---|
31 | for(int i=0;i<cnt;i++) { |
---|
32 | check(n!=INVALID,"Wrong Node list linking."); |
---|
33 | ++n; |
---|
34 | } |
---|
35 | check(n==INVALID,"Wrong Node list linking."); |
---|
36 | check(countNodes(G)==cnt,"Wrong Node number."); |
---|
37 | } |
---|
38 | |
---|
39 | template<class Graph> |
---|
40 | void checkGraphArcList(const Graph &G, int cnt) |
---|
41 | { |
---|
42 | typename Graph::ArcIt e(G); |
---|
43 | for(int i=0;i<cnt;i++) { |
---|
44 | check(e!=INVALID,"Wrong Arc list linking."); |
---|
45 | ++e; |
---|
46 | } |
---|
47 | check(e==INVALID,"Wrong Arc list linking."); |
---|
48 | check(countArcs(G)==cnt,"Wrong Arc number."); |
---|
49 | } |
---|
50 | |
---|
51 | template<class Graph> |
---|
52 | void checkGraphOutArcList(const Graph &G, typename Graph::Node n, int cnt) |
---|
53 | { |
---|
54 | typename Graph::OutArcIt e(G,n); |
---|
55 | for(int i=0;i<cnt;i++) { |
---|
56 | check(e!=INVALID,"Wrong OutArc list linking."); |
---|
57 | check(n==G.source(e),"Wrong OutArc list linking."); |
---|
58 | ++e; |
---|
59 | } |
---|
60 | check(e==INVALID,"Wrong OutArc list linking."); |
---|
61 | check(countOutArcs(G,n)==cnt,"Wrong OutArc number."); |
---|
62 | } |
---|
63 | |
---|
64 | template<class Graph> |
---|
65 | void checkGraphInArcList(const Graph &G, typename Graph::Node n, int cnt) |
---|
66 | { |
---|
67 | typename Graph::InArcIt e(G,n); |
---|
68 | for(int i=0;i<cnt;i++) { |
---|
69 | check(e!=INVALID,"Wrong InArc list linking."); |
---|
70 | check(n==G.target(e),"Wrong InArc list linking."); |
---|
71 | ++e; |
---|
72 | } |
---|
73 | check(e==INVALID,"Wrong InArc list linking."); |
---|
74 | check(countInArcs(G,n)==cnt,"Wrong InArc number."); |
---|
75 | } |
---|
76 | |
---|
77 | template<class Graph> |
---|
78 | void checkGraphEdgeList(const Graph &G, int cnt) |
---|
79 | { |
---|
80 | typename Graph::EdgeIt e(G); |
---|
81 | for(int i=0;i<cnt;i++) { |
---|
82 | check(e!=INVALID,"Wrong Edge list linking."); |
---|
83 | ++e; |
---|
84 | } |
---|
85 | check(e==INVALID,"Wrong Edge list linking."); |
---|
86 | check(countEdges(G)==cnt,"Wrong Edge number."); |
---|
87 | } |
---|
88 | |
---|
89 | template<class Graph> |
---|
90 | void checkGraphIncEdgeList(const Graph &G, typename Graph::Node n, int cnt) |
---|
91 | { |
---|
92 | typename Graph::IncEdgeIt e(G,n); |
---|
93 | for(int i=0;i<cnt;i++) { |
---|
94 | check(e!=INVALID,"Wrong IncEdge list linking."); |
---|
95 | check(n==G.u(e) || n==G.v(e),"Wrong IncEdge list linking."); |
---|
96 | ++e; |
---|
97 | } |
---|
98 | check(e==INVALID,"Wrong IncEdge list linking."); |
---|
99 | check(countIncEdges(G,n)==cnt,"Wrong IncEdge number."); |
---|
100 | } |
---|
101 | |
---|
102 | template <class Digraph> |
---|
103 | void checkDigraphIterators() { |
---|
104 | typedef typename Digraph::Node Node; |
---|
105 | typedef typename Digraph::NodeIt NodeIt; |
---|
106 | typedef typename Digraph::Arc Arc; |
---|
107 | typedef typename Digraph::ArcIt ArcIt; |
---|
108 | typedef typename Digraph::InArcIt InArcIt; |
---|
109 | typedef typename Digraph::OutArcIt OutArcIt; |
---|
110 | } |
---|
111 | |
---|
112 | template <class Graph> |
---|
113 | void checkGraphIterators() { |
---|
114 | checkDigraphIterators<Graph>(); |
---|
115 | typedef typename Graph::Edge Edge; |
---|
116 | typedef typename Graph::EdgeIt EdgeIt; |
---|
117 | typedef typename Graph::IncEdgeIt IncEdgeIt; |
---|
118 | } |
---|
119 | |
---|
120 | // Structure returned by addPetersen() |
---|
121 | template<class Digraph> |
---|
122 | struct PetStruct |
---|
123 | { |
---|
124 | // Vector containing the outer nodes |
---|
125 | std::vector<typename Digraph::Node> outer; |
---|
126 | // Vector containing the inner nodes |
---|
127 | std::vector<typename Digraph::Node> inner; |
---|
128 | // Vector containing the arcs of the inner circle |
---|
129 | std::vector<typename Digraph::Arc> incir; |
---|
130 | // Vector containing the arcs of the outer circle |
---|
131 | std::vector<typename Digraph::Arc> outcir; |
---|
132 | // Vector containing the chord arcs |
---|
133 | std::vector<typename Digraph::Arc> chords; |
---|
134 | }; |
---|
135 | |
---|
136 | // Adds the reverse pair of all arcs to a digraph |
---|
137 | template<class Digraph> |
---|
138 | void bidirDigraph(Digraph &G) |
---|
139 | { |
---|
140 | typedef typename Digraph::Arc Arc; |
---|
141 | typedef typename Digraph::ArcIt ArcIt; |
---|
142 | |
---|
143 | std::vector<Arc> ee; |
---|
144 | |
---|
145 | for(ArcIt e(G);e!=INVALID;++e) ee.push_back(e); |
---|
146 | |
---|
147 | for(int i=0;i<int(ee.size());++i) |
---|
148 | G.addArc(G.target(ee[i]),G.source(ee[i])); |
---|
149 | } |
---|
150 | |
---|
151 | // Adds a Petersen digraph to G. |
---|
152 | // Returns the nodes and arcs of the generated digraph. |
---|
153 | template<typename Digraph> |
---|
154 | PetStruct<Digraph> addPetersen(Digraph &G,int num = 5) |
---|
155 | { |
---|
156 | PetStruct<Digraph> n; |
---|
157 | |
---|
158 | for(int i=0;i<num;i++) { |
---|
159 | n.outer.push_back(G.addNode()); |
---|
160 | n.inner.push_back(G.addNode()); |
---|
161 | } |
---|
162 | |
---|
163 | for(int i=0;i<num;i++) { |
---|
164 | n.chords.push_back(G.addArc(n.outer[i],n.inner[i])); |
---|
165 | n.outcir.push_back(G.addArc(n.outer[i],n.outer[(i+1) % num])); |
---|
166 | n.incir.push_back(G.addArc(n.inner[i],n.inner[(i+2) % num])); |
---|
167 | } |
---|
168 | |
---|
169 | return n; |
---|
170 | } |
---|
171 | |
---|
172 | // Checks the bidirectioned Petersen digraph |
---|
173 | template<class Digraph> |
---|
174 | void checkBidirPetersen(const Digraph &G, int num = 5) |
---|
175 | { |
---|
176 | typedef typename Digraph::NodeIt NodeIt; |
---|
177 | |
---|
178 | checkGraphNodeList(G, 2 * num); |
---|
179 | checkGraphArcList(G, 6 * num); |
---|
180 | |
---|
181 | for(NodeIt n(G);n!=INVALID;++n) { |
---|
182 | checkGraphInArcList(G, n, 3); |
---|
183 | checkGraphOutArcList(G, n, 3); |
---|
184 | } |
---|
185 | } |
---|
186 | |
---|
187 | // Structure returned by addUPetersen() |
---|
188 | template<class Graph> |
---|
189 | struct UPetStruct |
---|
190 | { |
---|
191 | // Vector containing the outer nodes |
---|
192 | std::vector<typename Graph::Node> outer; |
---|
193 | // Vector containing the inner nodes |
---|
194 | std::vector<typename Graph::Node> inner; |
---|
195 | // Vector containing the edges of the inner circle |
---|
196 | std::vector<typename Graph::Edge> incir; |
---|
197 | // Vector containing the edges of the outer circle |
---|
198 | std::vector<typename Graph::Edge> outcir; |
---|
199 | // Vector containing the chord edges |
---|
200 | std::vector<typename Graph::Edge> chords; |
---|
201 | }; |
---|
202 | |
---|
203 | // Adds a Petersen graph to \c G. |
---|
204 | // Returns the nodes and edges of the generated graph. |
---|
205 | template<typename Graph> |
---|
206 | UPetStruct<Graph> addUPetersen(Graph &G,int num=5) |
---|
207 | { |
---|
208 | UPetStruct<Graph> n; |
---|
209 | |
---|
210 | for(int i=0;i<num;i++) { |
---|
211 | n.outer.push_back(G.addNode()); |
---|
212 | n.inner.push_back(G.addNode()); |
---|
213 | } |
---|
214 | |
---|
215 | for(int i=0;i<num;i++) { |
---|
216 | n.chords.push_back(G.addEdge(n.outer[i],n.inner[i])); |
---|
217 | n.outcir.push_back(G.addEdge(n.outer[i],n.outer[(i+1)%num])); |
---|
218 | n.incir.push_back(G.addEdge(n.inner[i],n.inner[(i+2)%num])); |
---|
219 | } |
---|
220 | |
---|
221 | return n; |
---|
222 | } |
---|
223 | |
---|
224 | // Checks the undirected Petersen graph |
---|
225 | template<class Graph> |
---|
226 | void checkUndirPetersen(const Graph &G, int num = 5) |
---|
227 | { |
---|
228 | typedef typename Graph::NodeIt NodeIt; |
---|
229 | |
---|
230 | checkGraphNodeList(G, 2 * num); |
---|
231 | checkGraphEdgeList(G, 3 * num); |
---|
232 | checkGraphArcList(G, 6 * num); |
---|
233 | |
---|
234 | for(NodeIt n(G);n!=INVALID;++n) { |
---|
235 | checkGraphIncEdgeList(G, n, 3); |
---|
236 | } |
---|
237 | } |
---|
238 | |
---|
239 | template <class Digraph> |
---|
240 | void checkDigraph() { |
---|
241 | const int num = 5; |
---|
242 | Digraph G; |
---|
243 | checkGraphNodeList(G, 0); |
---|
244 | checkGraphArcList(G, 0); |
---|
245 | addPetersen(G, num); |
---|
246 | bidirDigraph(G); |
---|
247 | checkBidirPetersen(G, num); |
---|
248 | } |
---|
249 | |
---|
250 | template <class Graph> |
---|
251 | void checkGraph() { |
---|
252 | const int num = 5; |
---|
253 | Graph G; |
---|
254 | checkGraphNodeList(G, 0); |
---|
255 | checkGraphEdgeList(G, 0); |
---|
256 | addUPetersen(G, num); |
---|
257 | checkUndirPetersen(G, num); |
---|
258 | } |
---|
259 | |
---|
260 | } //namespace lemon |
---|
261 | |
---|
262 | #endif |
---|