javac -cp /usr/share/java/junit4-4.12.jar test/UserInputTest.java

test/UserInputTest.java:3: error: package main does not exist
import main.UserInput;
           ^
test/UserInputTest.java:23: error: cannot find symbol
        UserInput userInput = new UserInput();
        ^
  symbol:   class UserInput
  location: class UserInputTest
test/UserInputTest.java:23: error: cannot find symbol
        UserInput userInput = new UserInput();
                                  ^
  symbol:   class UserInput
  location: class UserInputTest
3 errors