Ein bisschen testen...

Projektgruppe_175/src/base/Graph.java

@@ -131,7 +131,8 @@ public class Graph<T> {
      * @return true, wenn alle Knoten erreichbar sind
      */
     public boolean allNodesConnected() {
-    	// TODO: Graph<T>#allNodesConnected()
+    	
         return false;
+        
     }
 }

Projektgruppe_175/src/tests/student/GraphConnectionTest.java

@@ -1,5 +1,48 @@
 package tests.student;
 
+import static org.junit.Assert.assertFalse;
+import static org.junit.Assert.assertTrue;
+
+import org.junit.jupiter.api.Test;
+
+import base.*;
+
 public class GraphConnectionTest {
 
+	@Test
+	public void testCorrectGraph() {
+		
+		Graph<String> testGraph = new Graph<String>();
+		
+		Node<String> a = testGraph.addNode("A");
+		Node<String> b = testGraph.addNode("B");
+		Node<String> c = testGraph.addNode("C");
+		Node<String> d = testGraph.addNode("D");
+		
+		testGraph.addEdge(a, b);
+		testGraph.addEdge(a, c);
+		testGraph.addEdge(c, d);
+		
+		assertTrue(testGraph.allNodesConnected());
+		
+	}
+	
+	@Test
+	public void testIncorrectGraph() {
+		
+		Graph<Integer> testGraph = new Graph<Integer>();
+		
+		Node<Integer> one = testGraph.addNode(1);
+		Node<Integer> two = testGraph.addNode(2);
+		Node<Integer> four = testGraph.addNode(4);
+		Node<Integer> seven = testGraph.addNode(7);
+		Node<Integer> nine = testGraph.addNode(9);
+		
+		testGraph.addEdge(one, seven);
+		testGraph.addEdge(two, nine);
+		
+		assertFalse(testGraph.allNodesConnected());
+		
+	}
+	
 }