Another dataset fix

src/test/java/es/uvigo/esei/daa/dataset/PetsDataset.java

@@ -19,7 +19,7 @@ public final class PetsDataset {
 		};
 	}
 	
-	public static Pet[] peopleWithout(int ... ids) {
+	public static Pet[] petWithout(int ... ids) {
 		Arrays.sort(ids);
 		
 		final Predicate<Pet> hasValidId = pet ->
@@ -50,23 +50,27 @@ public final class PetsDataset {
 	}
 	
 	public static Pet nonExistentPet() {
-		return new Pet(nonExistentId(), "Cospe", "Gaivota", "Pepera",1);
+		return new Pet(nonExistentId(), "Cospe", "Gaivota", "Pepera", 1);
+	}
+	
+	public static int newId() {
+		return 4;
 	}
 	
 	public static String newName() {
-		return "Tor";
+		return "Cospe";
 	}
 	
 	public static String newKind() {
-		return "Pe";
+		return "Gaivota";
 	}
 	
 	public static String newBreed() {
-		return "QueFlipas";
+		return "Pepera";
 	}
 	
 	public static int newOwner() {
-		return 2;
+		return 1;
 	}
 	
 	public static Pet newPet() {