Added Route Unit Tests and DataException Exceptions Class

src/main/java/seng202/group9/Controller/DataException.java

@@ -0,0 +1,21 @@
+package seng202.group9.Controller;
+
+public class DataException extends Exception{
+	
+	public DataException(){
+		super();
+	}
+	
+	public DataException(String message) {
+		super(message);
+	}
+	
+	public DataException(String message, Throwable cause) {
+		super(message, cause); 
+	}
+	
+	public DataException(Throwable cause) {
+		super(cause);
+	}
+	
+}