From 568f779be7d246ad38c5123192fd7a77a9a84fb8 Mon Sep 17 00:00:00 2001
From: Cavailles Kevin <kc.mailpro@gmail.com>
Date: Sun, 31 May 2020 15:25:57 +0200
Subject: [PATCH] =?UTF-8?q?Am=C3=A9lioration=20des=20tests=20existants,=20?=
 =?UTF-8?q?ajout=20tests=20A*=20et=20tests=20d'optimalit=C3=A9?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 .../shortestpath/AStarAlgorithm.java          |  22 +--
 .../shortestpath/DijkstraAlgorithm.java       |  15 +-
 .../algorithm/shortestpath/LabelStar.java     |  11 +-
 .../graphs/algorithm/utils/BinaryHeap.java    |  42 +++--
 .../shortestpath/AStarAlgorithmTest.java      | 107 ------------
 .../shortestpath/DijkstraAlgorithmTest.java   | 127 --------------
 .../algorithm/shortestpath/algorithmTest.java |  96 -----------
 .../test/java/tests/AStarAlgorithmTest.java   | 144 ++++++++++++++++
 .../src/test/java/tests/AllTests.java         |  11 ++
 .../java/tests/DijkstraAlgorithmTest.java     | 159 ++++++++++++++++++
 .../src/test/java/tests/OptimaliteTest.java   | 109 ++++++++++++
 .../src/test/java/tests/algorithmTest.java    |  85 ++++++++++
 .../main/java/org/insa/graphs/model/Path.java |   6 +-
 13 files changed, 566 insertions(+), 368 deletions(-)
 delete mode 100644 be-graphes-algos/src/test/java/org/insa/graphs/algorithm/shortestpath/AStarAlgorithmTest.java
 delete mode 100644 be-graphes-algos/src/test/java/org/insa/graphs/algorithm/shortestpath/DijkstraAlgorithmTest.java
 delete mode 100644 be-graphes-algos/src/test/java/org/insa/graphs/algorithm/shortestpath/algorithmTest.java
 create mode 100644 be-graphes-algos/src/test/java/tests/AStarAlgorithmTest.java
 create mode 100644 be-graphes-algos/src/test/java/tests/AllTests.java
 create mode 100644 be-graphes-algos/src/test/java/tests/DijkstraAlgorithmTest.java
 create mode 100644 be-graphes-algos/src/test/java/tests/OptimaliteTest.java
 create mode 100644 be-graphes-algos/src/test/java/tests/algorithmTest.java

diff --git a/be-graphes-algos/src/main/java/org/insa/graphs/algorithm/shortestpath/AStarAlgorithm.java b/be-graphes-algos/src/main/java/org/insa/graphs/algorithm/shortestpath/AStarAlgorithm.java
index 8867956..b8a148d 100644
--- a/be-graphes-algos/src/main/java/org/insa/graphs/algorithm/shortestpath/AStarAlgorithm.java
+++ b/be-graphes-algos/src/main/java/org/insa/graphs/algorithm/shortestpath/AStarAlgorithm.java
@@ -22,14 +22,7 @@ public class AStarAlgorithm extends DijkstraAlgorithm {
     
    @Override
     protected Label createLabel(ShortestPathData data, Arc pere, Label noeudPrecedent) {
-    	if(pere == null && noeudPrecedent == null) {
-    		return new LabelStar(data.getOrigin(),
-					0,
-					Point.distance(data.getOrigin().getPoint(), data.getDestination().getPoint() ) ,
-					null);
-    	}
-    	
-    	
+    
     	double coutEstime = 0;
     	
     	
@@ -67,8 +60,15 @@ public class AStarAlgorithm extends DijkstraAlgorithm {
 				noeudPrecedent.getCost() + data.getCost(pere),
 				coutEstime,
 				pere);
-    	
-		
-		
 	}
+   
+   @Override
+   protected Label createLabelOrigin(ShortestPathData data) {
+	  
+	   return new LabelStar(data.getOrigin(),
+				0,
+				Point.distance(data.getOrigin().getPoint(), data.getDestination().getPoint() ) ,
+				null);
+	   
+   }
 }
diff --git a/be-graphes-algos/src/main/java/org/insa/graphs/algorithm/shortestpath/DijkstraAlgorithm.java b/be-graphes-algos/src/main/java/org/insa/graphs/algorithm/shortestpath/DijkstraAlgorithm.java
index e4f4635..4e1d03d 100644
--- a/be-graphes-algos/src/main/java/org/insa/graphs/algorithm/shortestpath/DijkstraAlgorithm.java
+++ b/be-graphes-algos/src/main/java/org/insa/graphs/algorithm/shortestpath/DijkstraAlgorithm.java
@@ -31,7 +31,7 @@ public class DijkstraAlgorithm extends ShortestPathAlgorithm {
 		Label labels[] = new Label[graph.getNodes().size()];
 		Arrays.fill(labels, null);
 		
-		Label origine = createLabel(data, null, null);
+		Label origine = createLabelOrigin(data);
 		labels[data.getOrigin().getId()] = origine;
 		tas.insert(origine);
 		
@@ -135,17 +135,16 @@ public class DijkstraAlgorithm extends ShortestPathAlgorithm {
 			solution = new ShortestPathSolution(data, Status.INFEASIBLE);
 		}
 			
-		System.out.println("nb erreurs  = "+cptErreurs);
+//		System.out.println("nb erreurs  = "+cptErreurs);
 		return solution;
 	}
 	
 	protected Label createLabel(ShortestPathData data, Arc pere, Label noeudPrecedent) {
-		if(pere != null && noeudPrecedent != null) {
-			return new Label( pere.getDestination() , noeudPrecedent.getCost()+ data.getCost(pere), pere);
-		}else {
-			return new Label(data.getOrigin(), 0, null);
-		}
-		
+			return new Label( pere.getDestination() , noeudPrecedent.getCost()+ data.getCost(pere), pere);	
+	}
+	
+	protected Label createLabelOrigin(ShortestPathData data) {
+		return new Label(data.getOrigin(), 0, null);
 	}
 
 }
diff --git a/be-graphes-algos/src/main/java/org/insa/graphs/algorithm/shortestpath/LabelStar.java b/be-graphes-algos/src/main/java/org/insa/graphs/algorithm/shortestpath/LabelStar.java
index ab7f26a..bb42d71 100644
--- a/be-graphes-algos/src/main/java/org/insa/graphs/algorithm/shortestpath/LabelStar.java
+++ b/be-graphes-algos/src/main/java/org/insa/graphs/algorithm/shortestpath/LabelStar.java
@@ -3,7 +3,7 @@ package org.insa.graphs.algorithm.shortestpath;
 import org.insa.graphs.model.Arc;
 import org.insa.graphs.model.Node;
 
-public class LabelStar extends Label{
+public class LabelStar extends Label implements Comparable<Label>{
 	
 	private Double coutEstime;
 
@@ -16,4 +16,13 @@ public class LabelStar extends Label{
 	public double getTotalCost(){
 		return this.getCost() + this.coutEstime;
 	}
+	
+	@Override
+	public int compareTo(Label o) {
+		LabelStar other = (LabelStar) o;
+		if(this.getTotalCost() == other.getTotalCost()) {
+			return Double.compare(this.coutEstime, other.coutEstime);
+		}
+		return Double.compare(this.getTotalCost(), o.getTotalCost()); 
+	}
 }
diff --git a/be-graphes-algos/src/main/java/org/insa/graphs/algorithm/utils/BinaryHeap.java b/be-graphes-algos/src/main/java/org/insa/graphs/algorithm/utils/BinaryHeap.java
index 9d27526..ba070d5 100644
--- a/be-graphes-algos/src/main/java/org/insa/graphs/algorithm/utils/BinaryHeap.java
+++ b/be-graphes-algos/src/main/java/org/insa/graphs/algorithm/utils/BinaryHeap.java
@@ -32,7 +32,7 @@ public class BinaryHeap<E extends Comparable<E>> implements PriorityQueue<E> {
     public BinaryHeap() {
         this.currentSize = 0;
         this.array = new ArrayList<E>();
-//        this.indexArray = new Couple[70];
+
     }
 
     /**
@@ -163,7 +163,7 @@ public class BinaryHeap<E extends Comparable<E>> implements PriorityQueue<E> {
         }
         
         int index = -1;
-//        Iterate over the array and check if the x exists
+//       Iterate over the array and check if the x exists
         for(int i=0; i<this.currentSize;i++) {
         	if(this.array.get(i).equals(x)) {
         		index = i;
@@ -203,8 +203,30 @@ public class BinaryHeap<E extends Comparable<E>> implements PriorityQueue<E> {
         return minItem;
     }
 
+   
+    /**
+     * Check that the binary heap is valid
+     * 
+     * @return a boolean indicating whether the tree is valid
+     */
+    public boolean isValid() {
+    	E current;
+    	E parent;
+    	for(int i=1; i<this.currentSize;  i++) {
+    		current = this.array.get(i);
+    		parent = this.array.get(this.indexParent(i));
+    		if( current.compareTo(parent) < 0) {
+    			return false;
+    		}	
+    	}
+    	return true;
+    }
     
-    //Met à jour l'arbre à partir à partir d'un élément dont le coût a changé
+    
+    /**
+     * Update the element x in the heap if it exists
+     * Raise ElementNotFoundException otherwise
+     */
     public void miseAJour(E x) throws ElementNotFoundException {
     	
     	if(this.isEmpty() || x == null){
@@ -230,20 +252,6 @@ public class BinaryHeap<E extends Comparable<E>> implements PriorityQueue<E> {
         
     }
     
-    
-    public boolean isValid() {
-    	E current;
-    	E parent;
-    	for(int i=1; i<this.currentSize;  i++) {
-    		current = this.array.get(i);
-    		parent = this.array.get(this.indexParent(i));
-    		if( current.compareTo(parent) < 0) {
-    			return false;
-    		}	
-    	}
-    	return true;
-    }
-    
     /**
      * Creates a multi-lines string representing a sorted view of this binary heap.
      * 
diff --git a/be-graphes-algos/src/test/java/org/insa/graphs/algorithm/shortestpath/AStarAlgorithmTest.java b/be-graphes-algos/src/test/java/org/insa/graphs/algorithm/shortestpath/AStarAlgorithmTest.java
deleted file mode 100644
index e691d02..0000000
--- a/be-graphes-algos/src/test/java/org/insa/graphs/algorithm/shortestpath/AStarAlgorithmTest.java
+++ /dev/null
@@ -1,107 +0,0 @@
-package org.insa.graphs.algorithm.shortestpath;
-
-import static org.junit.Assert.*;
-
-import java.util.ArrayList;
-import java.util.List;
-
-import org.insa.graphs.algorithm.AbstractSolution.Status;
-import org.insa.graphs.algorithm.shortestpath.AStarAlgorithm;
-import org.insa.graphs.algorithm.shortestpath.DijkstraAlgorithm;
-import org.insa.graphs.algorithm.shortestpath.ShortestPathSolution;
-import org.insa.graphs.model.Arc;
-import org.insa.graphs.model.Graph;
-import org.insa.graphs.model.Node;
-import org.insa.graphs.model.Path;
-import org.junit.After;
-import org.junit.Test;
-
-public class AStarAlgorithmTest extends algorithmTest{
-
-	@After
-	public void tearDown() throws Exception {
-	}
-
-	@Test
-	public void testAStarShortest() {
-		
-		for(int i=0; i<dataShortest.length; i++) {
-			AStarAlgorithm aStar = new AStarAlgorithm(dataShortest[i]);
-			ShortestPathSolution solution = aStar.run();
-			Path cheminSolution = solution.getPath();
-			
-			Graph graph = solution.getInputData().getGraph();
-			 
-			//Vérifie chemin valide
-			assertTrue(cheminSolution.isValid());
-			assertEquals(cheminSolution.getOrigin(), graph.get(tabOrigin[i]));
-			assertEquals(cheminSolution.getDestination(), graph.get(tabDestination[i]));
-			   
-			 // List of nodes
-			 ArrayList<Node> nodes = new ArrayList<Node>();
-			 List<Arc> arcsSolution = cheminSolution.getArcs();
-			 nodes.add(arcsSolution.get(0).getOrigin());
-			 
-			 for(int j=0;j<arcsSolution.size(); j++) {
-		        nodes.add(arcsSolution.get(j).getDestination());	
-		     }
-			 
-			 Path cheminShortest = Path.createShortestPathFromNodes(graph, nodes);
-			 
-			 //Vérifie que les chemins sont identiques (Arcs, taille, temps)
-			 assertEquals(cheminSolution.getArcs(), cheminShortest.getArcs());
-			 assertTrue(cheminSolution.getLength() == cheminShortest.getLength());
-			 assertTrue(cheminSolution.getMinimumTravelTime() == cheminShortest.getMinimumTravelTime());
-		}
-	}
-	
-	@Test
-	public void testAStarFastest() {
-		
-		for(int i=0; i<dataShortest.length; i++) {
-			AStarAlgorithm aStar = new AStarAlgorithm(dataFastest[i]);
-			ShortestPathSolution solution = aStar.run();
-			Path cheminSolution = solution.getPath();
-			
-			Graph graph = solution.getInputData().getGraph();
-			 
-			//Vérifie chemin valide
-			assertTrue(cheminSolution.isValid());
-			assertEquals(cheminSolution.getOrigin(), graph.get(tabOrigin[i]));
-			assertEquals(cheminSolution.getDestination(), graph.get(tabDestination[i]));
-			   
-			 // List of nodes
-			 ArrayList<Node> nodes = new ArrayList<Node>();
-			 List<Arc> arcsSolution = cheminSolution.getArcs();
-			 nodes.add(arcsSolution.get(0).getOrigin());
-			 
-			 for(int j=0;j<arcsSolution.size(); j++) {
-		        nodes.add(arcsSolution.get(j).getDestination());	
-		     }
-			 
-			 Path cheminFastest = Path.createFastestPathFromNodes(graph, nodes);
-			 
-			 //Vérifie que les chemins sont identiques (Arcs, taille, temps)
-			 assertEquals(cheminSolution.getArcs(), cheminFastest.getArcs());
-			 assertTrue(cheminSolution.getLength() == cheminFastest.getLength());
-			 assertTrue(cheminSolution.getMinimumTravelTime() == cheminFastest.getMinimumTravelTime());
-			 
-		}
-	}
-	
-	@Test
-	public void testDijkstraInfeasable() {
-		
-		 AStarAlgorithm aStar = new AStarAlgorithm(dataInfeasable);
-		 ShortestPathSolution solution =  aStar.run();
-		 Path cheminSolution = solution.getPath();
-		 
-		 //Vérifie chemin valide
-		 assertEquals(cheminSolution, null);
-		 assertEquals(solution.getStatus(), Status.INFEASIBLE);
-		
-	}
-	
-	
-
-}
diff --git a/be-graphes-algos/src/test/java/org/insa/graphs/algorithm/shortestpath/DijkstraAlgorithmTest.java b/be-graphes-algos/src/test/java/org/insa/graphs/algorithm/shortestpath/DijkstraAlgorithmTest.java
deleted file mode 100644
index 385d420..0000000
--- a/be-graphes-algos/src/test/java/org/insa/graphs/algorithm/shortestpath/DijkstraAlgorithmTest.java
+++ /dev/null
@@ -1,127 +0,0 @@
-package org.insa.graphs.algorithm.shortestpath;
-
-import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.assertTrue;
-import static org.junit.Assume.assumeTrue;
-
-import java.io.BufferedInputStream;
-import java.io.DataInputStream;
-import java.io.FileInputStream;
-import java.util.ArrayList;
-import java.util.List;
-
-import org.insa.graphs.algorithm.ArcInspector;
-import org.insa.graphs.algorithm.ArcInspectorFactory;
-import org.insa.graphs.algorithm.AbstractSolution.Status;
-import org.insa.graphs.algorithm.shortestpath.DijkstraAlgorithm;
-import org.insa.graphs.algorithm.shortestpath.ShortestPathData;
-import org.insa.graphs.algorithm.shortestpath.ShortestPathSolution;
-import org.insa.graphs.model.Arc;
-import org.insa.graphs.model.Graph;
-import org.insa.graphs.model.Node;
-import org.insa.graphs.model.Path;
-import org.insa.graphs.model.io.BinaryGraphReader;
-import org.insa.graphs.model.io.BinaryPathReader;
-import org.insa.graphs.model.io.GraphReader;
-import org.insa.graphs.model.io.PathReader;
-import org.junit.After;
-import org.junit.Before;
-import org.junit.Test;
-
-public class DijkstraAlgorithmTest extends algorithmTest {
-	
-	// Small graph use for tests
-   
-
-	@After
-	public void tearDown() throws Exception {
-	}
-
-	
-	@Test
-	public void testDijkstraShortest() {
-		
-		for(int i=0; i<dataShortest.length; i++) {
-			
-			DijkstraAlgorithm dijkstra = new DijkstraAlgorithm(dataShortest[i]);
-			ShortestPathSolution solution = dijkstra.run();
-			 Path cheminSolution = solution.getPath();
-			 
-			 Graph graph = solution.getInputData().getGraph();
-			 
-			//Vérifie chemin valide
-			assertTrue(cheminSolution.isValid());
-			assertEquals(cheminSolution.getOrigin(), graph.get(tabOrigin[i]));
-			assertEquals(cheminSolution.getDestination(), graph.get(tabDestination[i]));
-			   
-			 // List of nodes
-			 ArrayList<Node> nodes = new ArrayList<Node>();
-			 List<Arc> arcsSolution = cheminSolution.getArcs();
-			 nodes.add(arcsSolution.get(0).getOrigin());
-			 
-			 for(int j=0;j< arcsSolution.size(); j++) {
-		        nodes.add(arcsSolution.get(j).getDestination());	
-		     }
-			 
-			 Path cheminShortest = Path.createShortestPathFromNodes(graph, nodes);
-			 
-			 //Vérifie que les chemins sont identiques (Arcs, taille, temps)
-			 assertEquals(cheminSolution.getArcs(), cheminShortest.getArcs());
-			 assertTrue(cheminSolution.getLength() == cheminShortest.getLength());
-			 assertTrue(cheminSolution.getMinimumTravelTime() == cheminShortest.getMinimumTravelTime());
-		}
-
-	}
-	
-	
-	@Test
-	public void testDijkstraFastest() {
-		
-		for(int i=0; i<dataShortest.length; i++) {
-			DijkstraAlgorithm dijkstra = new DijkstraAlgorithm(dataFastest[i]);
-			ShortestPathSolution solution = dijkstra.run();
-			Path cheminSolution = solution.getPath();
-			 
-			Graph graph = solution.getInputData().getGraph();
-			 
-			//Vérifie chemin valide
-			assertTrue(cheminSolution.isValid());
-			assertEquals(cheminSolution.getOrigin(), graph.get(tabOrigin[i]));
-			assertEquals(cheminSolution.getDestination(), graph.get(tabDestination[i]));
-			   
-			 // List of nodes
-			 ArrayList<Node> nodes = new ArrayList<Node>();
-			 List<Arc> arcsSolution = cheminSolution.getArcs();
-			 nodes.add(arcsSolution.get(0).getOrigin());
-			 
-			 for(int j=0; j<arcsSolution.size(); j++) {
-		        nodes.add(arcsSolution.get(j).getDestination());	
-		     }
-			 
-			 Path cheminFastest = Path.createFastestPathFromNodes(graph, nodes);
-			 
-			 //Vérifie que les chemins sont identiques (Arcs, taille, temps)
-			 assertEquals(cheminSolution.getArcs(), cheminFastest.getArcs());
-			 assertTrue(cheminSolution.getLength() == cheminFastest.getLength());
-			 assertTrue(cheminSolution.getMinimumTravelTime() == cheminFastest.getMinimumTravelTime());
-			 
-		}
-	
-		
-	}
-	
-	@Test
-	public void testDijkstraInfeasable() {
-		
-		 DijkstraAlgorithm dijkstra = new DijkstraAlgorithm(dataInfeasable);
-		 ShortestPathSolution solution =  dijkstra.run();
-		 Path cheminSolution = solution.getPath();
-		 
-		 //Vérifie chemin valide
-		 assertEquals(cheminSolution, null);
-		 assertEquals(solution.getStatus(), Status.INFEASIBLE);
-		
-	}
-	
-
-}
diff --git a/be-graphes-algos/src/test/java/org/insa/graphs/algorithm/shortestpath/algorithmTest.java b/be-graphes-algos/src/test/java/org/insa/graphs/algorithm/shortestpath/algorithmTest.java
deleted file mode 100644
index 03cc1b2..0000000
--- a/be-graphes-algos/src/test/java/org/insa/graphs/algorithm/shortestpath/algorithmTest.java
+++ /dev/null
@@ -1,96 +0,0 @@
-package org.insa.graphs.algorithm.shortestpath;
-
-import static org.junit.Assert.*;
-
-import java.io.BufferedInputStream;
-import java.io.DataInputStream;
-import java.io.FileInputStream;
-import java.util.List;
-
-import org.insa.graphs.algorithm.ArcInspector;
-import org.insa.graphs.algorithm.ArcInspectorFactory;
-import org.insa.graphs.algorithm.shortestpath.ShortestPathData;
-import org.insa.graphs.model.Graph;
-import org.insa.graphs.model.io.BinaryGraphReader;
-import org.insa.graphs.model.io.GraphReader;
-import org.junit.After;
-import org.junit.Before;
-
-public class algorithmTest {
-
-	 protected Graph graph, graphPolynesie, graphBelgique;
-
-	    
-    final String hauteGaronne = "/Users/Kevin/Desktop/programmation/java_files/Maps/europe/france/haute-garonne.mapgr";
-    final String polynesie = "/Users/Kevin/Desktop/programmation/java_files/Maps/europe/france/french-polynesia.mapgr";
-    final String belgique = "/Users/Kevin/Desktop/programmation/java_files/Maps/europe/belgique/belgium.mapgr";
-    
-    final static int taille = 5;
-    
-    protected ShortestPathData dataShortest[];
-    protected ShortestPathData dataFastest[];
-    protected ShortestPathData dataInfeasable;
-    protected int tabOrigin[], tabDestination[];
-    
-	   
-
-	@Before
-	public void setUp() throws Exception {
-	
-		
-		List<ArcInspector> arcList = ArcInspectorFactory.getAllFilters();
-		ArcInspector arcShortestAllRoad = arcList.get(0);
-		ArcInspector arcFastestAllRoad = arcList.get(2);
-
-        try (GraphReader readerHauteGaronne = new BinaryGraphReader(new DataInputStream(
-                new BufferedInputStream(new FileInputStream(hauteGaronne))))) {
-
-            // TODO: Read the graph.
-            graph = readerHauteGaronne.read();
-        }
-        
-        try (GraphReader readerPolynesie = new BinaryGraphReader(new DataInputStream(
-                new BufferedInputStream(new FileInputStream(polynesie))))) {
-
-            // TODO: Read the graph.
-            graphPolynesie = readerPolynesie.read();
-        }
-        
-        try (GraphReader readerBelgique = new BinaryGraphReader(new DataInputStream(
-                new BufferedInputStream(new FileInputStream(belgique))))) {
-
-            // TODO: Read the graph.
-            graphBelgique = readerBelgique.read();
-        }
-        
-        dataShortest = new ShortestPathData[taille];
-        dataFastest = new ShortestPathData[taille];
-        tabOrigin = new int[taille]; tabDestination = new int[taille];
-        
-        tabOrigin[0] = 10991; tabOrigin[1] = 102582; tabOrigin[2]= 81460; tabOrigin[3]= 942294;  tabOrigin[4]= 10228;
-        
-        tabDestination[0] = 89149; tabDestination[1]= 84718; tabDestination[2] = 129594; tabDestination[3] = 412806 ; tabDestination[4]= 666164 ;
-        
-        
-        dataShortest[0] = new ShortestPathData(graph, graph.get(tabOrigin[0]), graph.get(tabDestination[0]), arcShortestAllRoad);
-        dataShortest[1] = new ShortestPathData(graph, graph.get(tabOrigin[1]), graph.get(tabDestination[1]), arcShortestAllRoad);
-        dataShortest[2] = new ShortestPathData(graph, graph.get(tabOrigin[2]), graph.get(tabDestination[2]), arcShortestAllRoad);
-        dataShortest[3] = new ShortestPathData(graphBelgique, graphBelgique.get(tabOrigin[3]), graphBelgique.get(tabDestination[3]), arcShortestAllRoad);
-        dataShortest[4] = new ShortestPathData(graphBelgique, graphBelgique.get(tabOrigin[4]), graphBelgique.get(tabDestination[4]), arcShortestAllRoad);
-       
-        dataFastest[0] = new ShortestPathData(graph, graph.get(tabOrigin[0]), graph.get(tabDestination[0]) , arcFastestAllRoad);
-        dataFastest[1] = new ShortestPathData(graph, graph.get(tabOrigin[1]), graph.get(tabDestination[1]), arcFastestAllRoad);
-        dataFastest[2] = new ShortestPathData(graph, graph.get(tabOrigin[2]), graph.get(tabDestination[2]), arcFastestAllRoad);
-        dataFastest[3] = new ShortestPathData(graphBelgique, graphBelgique.get(tabOrigin[3]), graphBelgique.get(tabDestination[3]), arcFastestAllRoad);
-        dataFastest[4] = new ShortestPathData(graphBelgique, graphBelgique.get(tabOrigin[4]), graphBelgique.get(tabDestination[4]), arcFastestAllRoad);
-
-        
-        
-        dataInfeasable = new ShortestPathData(graphPolynesie, graphPolynesie.get(2984), graphPolynesie.get(10467), arcFastestAllRoad);
-	}
-
-	@After
-	public void tearDown() throws Exception {
-	}
-
-}
diff --git a/be-graphes-algos/src/test/java/tests/AStarAlgorithmTest.java b/be-graphes-algos/src/test/java/tests/AStarAlgorithmTest.java
new file mode 100644
index 0000000..87fd645
--- /dev/null
+++ b/be-graphes-algos/src/test/java/tests/AStarAlgorithmTest.java
@@ -0,0 +1,144 @@
+package tests;
+
+import static org.junit.Assert.*;
+
+import java.util.ArrayList;
+import java.util.List;
+
+import org.insa.graphs.algorithm.AbstractSolution.Status;
+import org.insa.graphs.algorithm.shortestpath.AStarAlgorithm;
+import org.insa.graphs.algorithm.shortestpath.DijkstraAlgorithm;
+import org.insa.graphs.algorithm.shortestpath.ShortestPathSolution;
+import org.insa.graphs.model.Arc;
+import org.insa.graphs.model.Graph;
+import org.insa.graphs.model.Node;
+import org.insa.graphs.model.Path;
+import org.junit.After;
+import org.junit.Test;
+
+public class AStarAlgorithmTest extends algorithmTest{
+
+	@After
+	public void tearDown() throws Exception {
+	}
+
+	//Test pour vérifier que le chemin obtenu avec l'algorithme A* 
+	//est le même que celui crée par la méthode createShortestPathFromNodes de la classe Path
+	@Test
+	public void testAStarShortest() {
+		
+		for(int i=0; i<dataShortest.length; i++) {
+			AStarAlgorithm aStar = new AStarAlgorithm(dataShortest[i]);
+			ShortestPathSolution solution = aStar.run();
+			Path cheminSolution = solution.getPath();
+			
+			Graph graph = solution.getInputData().getGraph();
+			 
+			if (cheminSolution == null) {
+
+				assertEquals(solution.getStatus(), Status.INFEASIBLE);
+
+			} else {
+				//Vérifie chemin valide
+				assertTrue(cheminSolution.isValid());
+//				assertEquals(cheminSolution.getOrigin(), graph.get(tabOrigin[i]));
+//				assertEquals(cheminSolution.getDestination(), graph.get(tabDestination[i]));
+				   
+				 // List of nodes
+				 ArrayList<Node> nodes = new ArrayList<Node>();
+				 List<Arc> arcsSolution = cheminSolution.getArcs();
+				 nodes.add(arcsSolution.get(0).getOrigin());
+				 
+				 for(int j=0;j<arcsSolution.size(); j++) {
+			        nodes.add(arcsSolution.get(j).getDestination());	
+			     }
+				 
+				 Path cheminShortest = Path.createShortestPathFromNodes(graph, nodes);
+				 
+				 //Vérifie que les chemins sont identiques (Arcs, taille, temps)
+				 assertEquals(cheminSolution.getArcs(), cheminShortest.getArcs());
+				 assertEquals(cheminSolution.getLength(), cheminShortest.getLength(), 1e-6);
+				 assertEquals(cheminSolution.getMinimumTravelTime(), cheminShortest.getMinimumTravelTime(), 1e-6);
+			}
+		}
+	}
+	
+	
+	//Test pour vérifier que le chemin obtenu avec l'algorithme A* 
+	//est le même que celui crée par la méthode createFastestPathFromNodes de la classe Path
+	@Test
+	public void testAStarFastest() {
+		
+		for(int i=0; i<dataShortest.length; i++) {
+			AStarAlgorithm aStar = new AStarAlgorithm(dataFastest[i]);
+			ShortestPathSolution solution = aStar.run();
+			Path cheminSolution = solution.getPath();
+			
+			Graph graph = solution.getInputData().getGraph();
+			 
+			if (cheminSolution == null) {
+
+				assertEquals(solution.getStatus(), Status.INFEASIBLE);
+
+			} else {
+				//Vérifie chemin valide
+				assertTrue(cheminSolution.isValid());
+//				assertEquals(cheminSolution.getOrigin(), graph.get(tabOrigin[i]));
+//				assertEquals(cheminSolution.getDestination(), graph.get(tabDestination[i]));
+				   
+				 // List of nodes
+				 ArrayList<Node> nodes = new ArrayList<Node>();
+				 List<Arc> arcsSolution = cheminSolution.getArcs();
+				 nodes.add(arcsSolution.get(0).getOrigin());
+				 
+				 for(int j=0;j<arcsSolution.size(); j++) {
+			        nodes.add(arcsSolution.get(j).getDestination());	
+			     }
+				 
+				 Path cheminFastest = Path.createFastestPathFromNodes(graph, nodes);
+				 
+				 //Vérifie que les chemins sont identiques (Arcs, taille, temps)
+				 assertEquals(cheminSolution.getArcs(), cheminFastest.getArcs());
+				 assertEquals(cheminSolution.getLength(), cheminFastest.getLength(), 1e-6);
+				 assertEquals(cheminSolution.getMinimumTravelTime(), cheminFastest.getMinimumTravelTime(), 1e-6);
+				
+			}
+			 
+		}
+	}
+	
+	
+	//Test pour un chemin entre 2 îles 
+	@Test
+	public void testAStarInfeasable() {
+		
+		 AStarAlgorithm aStar = new AStarAlgorithm(dataInfeasable);
+		 ShortestPathSolution solution =  aStar.run();
+		 Path cheminSolution = solution.getPath();
+		 
+		 //Vérifie chemin valide
+		 assertEquals(cheminSolution, null);
+		 assertEquals(solution.getStatus(), Status.INFEASIBLE);
+		
+	}
+	
+	
+	//Test pour un chemin d'un seul noeud
+	@Test
+	public void testAStarOneNode() {
+
+		AStarAlgorithm aStar = new AStarAlgorithm(dataOneNode);
+		ShortestPathSolution solution = aStar.run();
+		Path cheminSolution = solution.getPath();
+
+		// Vérifie que le chemin est de longueur nulle, de temps nul et n'a pas d'arc
+		assertEquals(solution.getStatus(), Status.OPTIMAL);
+		assertEquals(cheminSolution.getLength(), 0f, 0.1e-6);
+		assertEquals(cheminSolution.getMinimumTravelTime(), 0d, 1e-6);
+		assertEquals(cheminSolution.getArcs().size(), 0);
+
+	}
+	
+	
+
+}
diff --git a/be-graphes-algos/src/test/java/tests/AllTests.java b/be-graphes-algos/src/test/java/tests/AllTests.java
new file mode 100644
index 0000000..7099ac9
--- /dev/null
+++ b/be-graphes-algos/src/test/java/tests/AllTests.java
@@ -0,0 +1,11 @@
+package tests;
+
+import org.junit.runner.RunWith;
+import org.junit.runners.Suite;
+import org.junit.runners.Suite.SuiteClasses;
+
+@RunWith(Suite.class)
+@SuiteClasses({ AStarAlgorithmTest.class, DijkstraAlgorithmTest.class, OptimaliteTest.class})
+public class AllTests {
+
+}
diff --git a/be-graphes-algos/src/test/java/tests/DijkstraAlgorithmTest.java b/be-graphes-algos/src/test/java/tests/DijkstraAlgorithmTest.java
new file mode 100644
index 0000000..b6aa031
--- /dev/null
+++ b/be-graphes-algos/src/test/java/tests/DijkstraAlgorithmTest.java
@@ -0,0 +1,159 @@
+package tests;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertTrue;
+import static org.junit.Assume.assumeTrue;
+
+import java.io.BufferedInputStream;
+import java.io.DataInputStream;
+import java.io.FileInputStream;
+import java.util.ArrayList;
+import java.util.List;
+
+import org.insa.graphs.algorithm.ArcInspector;
+import org.insa.graphs.algorithm.ArcInspectorFactory;
+import org.insa.graphs.algorithm.AbstractSolution.Status;
+import org.insa.graphs.algorithm.shortestpath.DijkstraAlgorithm;
+import org.insa.graphs.algorithm.shortestpath.ShortestPathData;
+import org.insa.graphs.algorithm.shortestpath.ShortestPathSolution;
+import org.insa.graphs.model.Arc;
+import org.insa.graphs.model.Graph;
+import org.insa.graphs.model.Node;
+import org.insa.graphs.model.Path;
+import org.insa.graphs.model.io.BinaryGraphReader;
+import org.insa.graphs.model.io.BinaryPathReader;
+import org.insa.graphs.model.io.GraphReader;
+import org.insa.graphs.model.io.PathReader;
+import org.junit.After;
+import org.junit.Before;
+import org.junit.Test;
+
+public class DijkstraAlgorithmTest extends algorithmTest {
+
+	// Small graph use for tests
+
+	@After
+	public void tearDown() throws Exception {
+	}
+
+	
+	//Test pour vérifier que le chemin obtenu avec l'algorithme de dijkstra 
+	//est le même que celui crée par la méthode createShortestPathFromNodes de la classe Path
+	@Test
+	public void testDijkstraShortest() {
+
+		for (int i = 0; i < dataShortest.length; i++) {
+
+			DijkstraAlgorithm dijkstra = new DijkstraAlgorithm(dataShortest[i]);
+			ShortestPathSolution solution = dijkstra.run();
+			Path cheminSolution = solution.getPath();
+
+			Graph graph = solution.getInputData().getGraph();
+
+			if (cheminSolution == null) {
+
+				assertEquals(solution.getStatus(), Status.INFEASIBLE);
+
+			} else {
+
+				// Vérifie chemin valide
+				assertTrue(cheminSolution.isValid());
+//				assertEquals(cheminSolution.getOrigin(), graph.get(tabOrigin[i]));
+//				assertEquals(cheminSolution.getDestination(), graph.get(tabDestination[i]));
+
+				// List of nodes
+				ArrayList<Node> nodes = new ArrayList<Node>();
+				List<Arc> arcsSolution = cheminSolution.getArcs();
+				nodes.add(arcsSolution.get(0).getOrigin());
+
+				for (int j = 0; j < arcsSolution.size(); j++) {
+					nodes.add(arcsSolution.get(j).getDestination());
+				}
+
+				Path cheminShortest = Path.createShortestPathFromNodes(graph, nodes);
+
+				// Vérifie que les chemins sont identiques (Arcs, taille, temps)
+				assertEquals(cheminSolution.getArcs(), cheminShortest.getArcs());
+				assertEquals(cheminSolution.getLength(), cheminShortest.getLength(), 1e-6);
+				 assertEquals(cheminSolution.getMinimumTravelTime(), cheminShortest.getMinimumTravelTime(), 1e-6);
+			}
+
+		}
+
+	}
+
+	//Test pour vérifier que le chemin obtenu avec l'algorithme de dijkstra 
+	//est le même que celui crée par la méthode createFastestPathFromNodes de la classe Path
+	@Test
+	public void testDijkstraFastest() {
+
+		for (int i = 0; i < dataShortest.length; i++) {
+			DijkstraAlgorithm dijkstra = new DijkstraAlgorithm(dataFastest[i]);
+			ShortestPathSolution solution = dijkstra.run();
+			Path cheminSolution = solution.getPath();
+
+			Graph graph = solution.getInputData().getGraph();
+
+			if (cheminSolution == null) {
+
+				assertEquals(solution.getStatus(), Status.INFEASIBLE);
+
+			} else {
+				// Vérifie chemin valide
+				assertTrue(cheminSolution.isValid());
+//				assertEquals(cheminSolution.getOrigin(), graph.get(tabOrigin[i]));
+//				assertEquals(cheminSolution.getDestination(), graph.get(tabDestination[i]));
+
+				// List of nodes
+				ArrayList<Node> nodes = new ArrayList<Node>();
+				List<Arc> arcsSolution = cheminSolution.getArcs();
+				nodes.add(arcsSolution.get(0).getOrigin());
+
+				for (int j = 0; j < arcsSolution.size(); j++) {
+					nodes.add(arcsSolution.get(j).getDestination());
+				}
+
+				Path cheminFastest = Path.createFastestPathFromNodes(graph, nodes);
+
+				// Vérifie que les chemins sont identiques (Arcs, taille, temps)
+				assertEquals(cheminSolution.getArcs(), cheminFastest.getArcs());
+				assertEquals(cheminSolution.getLength(), cheminFastest.getLength(), 1e-6);
+				assertEquals(cheminSolution.getMinimumTravelTime(), cheminFastest.getMinimumTravelTime(), 1e-6);
+			}
+
+		}
+
+	}
+
+	//Test pour un chemin entre 2 îles 
+	@Test
+	public void testDijkstraInfeasable() {
+
+		DijkstraAlgorithm dijkstra = new DijkstraAlgorithm(dataInfeasable);
+		ShortestPathSolution solution = dijkstra.run();
+		Path cheminSolution = solution.getPath();
+
+		// Vérifie qu'il n'y a pas de chemin
+		assertEquals(cheminSolution, null);
+		assertEquals(solution.getStatus(), Status.INFEASIBLE);
+
+	}
+	
+	//Test pour un chemin d'un seul noeud
+	@Test
+	public void testDijkstraOneNode() {
+
+		DijkstraAlgorithm dijkstra = new DijkstraAlgorithm(dataOneNode);
+		ShortestPathSolution solution = dijkstra.run();
+		Path cheminSolution = solution.getPath();
+
+		// Vérifie que le chemin est de longueur nulle, de temps nul et n'a pas d'arc
+		assertEquals(solution.getStatus(), Status.OPTIMAL);
+		assertEquals(cheminSolution.getLength(), 0f, 1e-6);
+		assertEquals(cheminSolution.getMinimumTravelTime(), 0d, 1e-6);
+		assertEquals(cheminSolution.getArcs().size(), 0);
+
+	}
+
+
+}
diff --git a/be-graphes-algos/src/test/java/tests/OptimaliteTest.java b/be-graphes-algos/src/test/java/tests/OptimaliteTest.java
new file mode 100644
index 0000000..fc32b35
--- /dev/null
+++ b/be-graphes-algos/src/test/java/tests/OptimaliteTest.java
@@ -0,0 +1,109 @@
+package tests;
+
+import static org.junit.Assert.*;
+
+import java.util.ArrayList;
+
+import org.insa.graphs.algorithm.AbstractSolution.Status;
+import org.insa.graphs.algorithm.shortestpath.AStarAlgorithm;
+import org.insa.graphs.algorithm.shortestpath.BellmanFordAlgorithm;
+import org.insa.graphs.algorithm.shortestpath.DijkstraAlgorithm;
+import org.insa.graphs.algorithm.shortestpath.ShortestPathSolution;
+import org.insa.graphs.model.Path;
+import org.junit.After;
+import org.junit.Test;
+
+public class OptimaliteTest extends algorithmTest {
+
+	@After
+	public void tearDown() throws Exception {
+	}
+
+	@Test
+	public void testShortest() {
+		
+		ArrayList<Long> tempsDijkstra = new ArrayList<>(),
+						tempsAStar = new ArrayList<Long>();
+		
+		for (int i = 0; i < dataShortest.length; i++) {
+			BellmanFordAlgorithm BF = new BellmanFordAlgorithm(dataShortest[i]);
+			DijkstraAlgorithm dijkstra = new DijkstraAlgorithm(dataShortest[i]);
+			AStarAlgorithm aStar = new AStarAlgorithm(dataShortest[i]);
+			
+			ShortestPathSolution solutionBF = BF.run(),
+								 solutionDijkstra = dijkstra.run(),
+								 solutionAStar = aStar.run();
+			
+			
+			Path cheminSolutionBF = solutionBF.getPath(),
+				 cheminSolutionDijkstra = solutionDijkstra.getPath(),
+				 cheminSolutionAStar = solutionAStar.getPath();
+			
+			if (cheminSolutionBF == null) {
+				assertEquals(solutionBF.getStatus(), Status.INFEASIBLE);
+				assertEquals(solutionDijkstra.getStatus(), Status.INFEASIBLE);
+				assertEquals(solutionAStar.getStatus(), Status.INFEASIBLE);
+			}else {
+			
+			
+				tempsDijkstra.add(solutionDijkstra.getSolvingTime().toMillis());
+				tempsAStar.add(solutionAStar.getSolvingTime().toMillis());
+				
+				assertEquals(cheminSolutionAStar.getArcs(), cheminSolutionBF.getArcs());
+				assertEquals(cheminSolutionAStar.getLength(), cheminSolutionBF.getLength(), 1e-6);
+				assertEquals(cheminSolutionAStar.getMinimumTravelTime(), cheminSolutionBF.getMinimumTravelTime(), 1e-6);
+			
+				assertEquals(cheminSolutionDijkstra.getArcs(), cheminSolutionBF.getArcs());
+				assertEquals(cheminSolutionDijkstra.getLength(), cheminSolutionBF.getLength(), 1e-6);
+				assertEquals(cheminSolutionDijkstra.getMinimumTravelTime(), cheminSolutionBF.getMinimumTravelTime(), 1e-6);
+			}
+		}
+		
+		System.out.println("Dijkstra : "+tempsDijkstra.toString());
+		System.out.println("A* : "+tempsAStar.toString());
+		
+	}
+	
+	@Test
+	public void testFastest() {
+		
+		ArrayList<Long> tempsDijkstra = new ArrayList<>(),
+						tempsAStar = new ArrayList<Long>();
+		
+		for (int i = 0; i < dataFastest.length; i++) {
+			BellmanFordAlgorithm BF = new BellmanFordAlgorithm(dataFastest[i]);
+			DijkstraAlgorithm dijkstra = new DijkstraAlgorithm(dataFastest[i]);
+			AStarAlgorithm aStar = new AStarAlgorithm(dataFastest[i]);
+			
+			ShortestPathSolution solutionBF = BF.run(),
+								 solutionDijkstra = dijkstra.run(),
+								 solutionAStar = aStar.run();
+			
+			Path cheminSolutionBF = solutionBF.getPath(),
+				 cheminSolutionDijkstra = solutionDijkstra.getPath(),
+				 cheminSolutionAStar = solutionAStar.getPath();
+			
+			if (cheminSolutionBF == null) {
+				assertEquals(solutionBF.getStatus(), Status.INFEASIBLE);
+				assertEquals(solutionDijkstra.getStatus(), Status.INFEASIBLE);
+				assertEquals(solutionAStar.getStatus(), Status.INFEASIBLE);
+			}else {
+				
+				tempsDijkstra.add(solutionDijkstra.getSolvingTime().toMillis());
+				tempsAStar.add(solutionAStar.getSolvingTime().toMillis());
+				
+				assertEquals(cheminSolutionAStar.getArcs(), cheminSolutionBF.getArcs());
+				assertEquals(cheminSolutionAStar.getLength(), cheminSolutionBF.getLength(), 1e-6);
+				assertEquals(cheminSolutionAStar.getMinimumTravelTime(), cheminSolutionBF.getMinimumTravelTime(), 1e-6);
+			
+				assertEquals(cheminSolutionDijkstra.getArcs(), cheminSolutionBF.getArcs());
+				assertEquals(cheminSolutionDijkstra.getLength(), cheminSolutionBF.getLength(), 1e-6);
+				assertEquals(cheminSolutionDijkstra.getMinimumTravelTime(), cheminSolutionBF.getMinimumTravelTime(), 1e-6);
+			}
+		}
+		
+		System.out.println("Dijkstra : "+tempsDijkstra.toString());
+		System.out.println("A* : "+tempsAStar.toString());
+	}
+
+}
diff --git a/be-graphes-algos/src/test/java/tests/algorithmTest.java b/be-graphes-algos/src/test/java/tests/algorithmTest.java
new file mode 100644
index 0000000..51cdd7d
--- /dev/null
+++ b/be-graphes-algos/src/test/java/tests/algorithmTest.java
@@ -0,0 +1,85 @@
+package tests;
+
+import java.io.BufferedInputStream;
+import java.io.DataInputStream;
+import java.io.FileInputStream;
+import java.util.List;
+import java.util.Random;
+
+import org.insa.graphs.algorithm.ArcInspector;
+import org.insa.graphs.algorithm.ArcInspectorFactory;
+import org.insa.graphs.algorithm.shortestpath.ShortestPathData;
+import org.insa.graphs.model.Graph;
+import org.insa.graphs.model.io.BinaryGraphReader;
+import org.insa.graphs.model.io.GraphReader;
+import org.junit.BeforeClass;
+
+public class algorithmTest {
+
+	protected static Graph graphs[];
+
+	//3 cartes, chacune testée pour les mode "shortest path all roads" et "fastest path all roads"
+	// /!\ Chemin des cartes à adapter /!\
+	final static String hauteGaronne = "/Users/Kevin/Desktop/programmation/java_files/Maps/europe/france/haute-garonne.mapgr";
+	final static String polynesie = "/Users/Kevin/Desktop/programmation/java_files/Maps/europe/france/french-polynesia.mapgr";
+	final static String bretagne = "/Users/Kevin/Desktop/programmation/java_files/Maps/europe/france/bretagne.mapgr";
+
+	final static String maps[] = { hauteGaronne, polynesie, bretagne };
+
+	final static int nbRoutesTest = 5; //Variable utilisée pour déterminer le nombre d'itinéraires à tester par carte et par mode
+									   //Dans l'état actuel, les tests seront effectués pour nbRoutesTest*3*2 itinéraires
+
+	protected static ShortestPathData dataShortest[];
+	protected static ShortestPathData dataFastest[];
+	protected static ShortestPathData dataInfeasable, dataOneNode;
+	protected static int tabOrigin[], tabDestination[];
+
+	@BeforeClass
+	public static void setUpBeforeClass() throws Exception {
+
+		List<ArcInspector> arcList = ArcInspectorFactory.getAllFilters();
+		ArcInspector arcShortestAllRoad = arcList.get(0);
+		ArcInspector arcFastestAllRoad = arcList.get(2);
+
+		graphs = new Graph[3];
+		
+		//Lecture des différentes cartes
+		for (int i = 0; i < 3; i++) {
+			try (GraphReader reader = new BinaryGraphReader(
+					new DataInputStream(new BufferedInputStream(new FileInputStream(maps[i]))))) {
+				// TODO: Read the graph.
+				graphs[i] = reader.read();
+			}
+
+		}
+
+		dataShortest = new ShortestPathData[nbRoutesTest * 3];
+		dataFastest = new ShortestPathData[nbRoutesTest * 3];
+		tabOrigin = new int[nbRoutesTest * 3];
+		tabDestination = new int[nbRoutesTest * 3];
+
+		Random rand = new Random(100l);
+		int origine, destination;
+
+		// Pour chaque carte, génère un nombre nbRoutes*2 d'itinéraires (plus court et
+		// plus rapide)
+		for (int i = 0; i < 3; i++) {
+
+			for (int j = 0; j < nbRoutesTest; j++) {
+
+				origine = rand.nextInt(graphs[i].getNodes().size());
+				destination = rand.nextInt(graphs[i].getNodes().size());
+				dataShortest[i * nbRoutesTest + j] = new ShortestPathData(graphs[i], graphs[i].get(origine),
+						graphs[i].get(destination), arcShortestAllRoad);
+				dataFastest[i * nbRoutesTest + j] = new ShortestPathData(graphs[i], graphs[i].get(origine),
+						graphs[i].get(destination), arcFastestAllRoad);
+
+			}
+		}
+
+		dataInfeasable = new ShortestPathData(graphs[1], graphs[1].get(2984), graphs[1].get(10467), arcFastestAllRoad);
+		dataOneNode = new ShortestPathData(graphs[0], graphs[0].get(535), graphs[0].get(535), arcShortestAllRoad);
+
+	}
+
+}
diff --git a/be-graphes-model/src/main/java/org/insa/graphs/model/Path.java b/be-graphes-model/src/main/java/org/insa/graphs/model/Path.java
index f0523bf..1a87da6 100644
--- a/be-graphes-model/src/main/java/org/insa/graphs/model/Path.java
+++ b/be-graphes-model/src/main/java/org/insa/graphs/model/Path.java
@@ -298,7 +298,11 @@ public class Path {
      *         kilometers-per-hour).
      */
     public double getTravelTime(double speed) {
-        return this.getLength()/(speed/3.6f);
+    	 float res = 0.0f;
+         for(Arc a : this.arcs) {
+         	res+= a.getTravelTime(speed);
+         }
+        return res;//this.getLength()/(speed/3.6f);
     }
 
     /**