Commit

src/search/breadthfirstsearch/BreadthFirstSearch.java

@@ -1,6 +1,7 @@
 package search.breadthfirstsearch;
 
 import java.util.ArrayList;
+import java.util.Arrays;
 import java.util.List;
 
 public class BreadthFirstSearch
@@ -19,7 +20,7 @@ public class BreadthFirstSearch
             newNodes.addAll(node.generateSuccessors());
         }
 
-        if (newNodes.isEmpty())
+        if (!newNodes.isEmpty())
         {
             return breadthFirstSearch(newNodes, target);
         }

test/search/breadthfirstsearch/BreadthFirstSearchTest.java

@@ -2,6 +2,9 @@ package search.breadthfirstsearch;
 
 import org.junit.jupiter.api.Test;
 
+import java.util.Arrays;
+import java.util.List;
+
 import static org.junit.jupiter.api.Assertions.*;
 
 class BreadthFirstSearchTest
@@ -9,6 +12,28 @@ class BreadthFirstSearchTest
     @Test
     void shouldReturnCorrectTarget()
     {
+        int[][] state = {
+                {1, 2, 3},
+                {4, 5, 6},
+                {7, 0, 8}
+        };
+        var root = new EightPuzzleNode(state);
 
+
+        int[][] targetState = {
+                {1, 2, 3},
+                {4, 5, 6},
+                {7, 8, 0}
+        };
+        var expected = new EightPuzzleNode(targetState);
+
+        var actual = new BreadthFirstSearch().breadthFirstSearch(List.of(root), expected);
+
+        var a = ((EightPuzzleNode) actual).getState();
+
+        for (int[] b : a)
+        {
+            System.out.println(Arrays.toString(b));
+        }
     }
 }