JSONObject Unit Testing Always Null

Question

I have been looking at this for an hour and can't seem to see what's wrong.

JSONObject jsonResponse = new JSONObject();
jsonResponse.put("JSON", "hi");
String myString = jsonResponse.getString("JSON");
assertEquals("hi", myString); 

Result... (The entire method throws Throwable). I tried try/catch as well. Same result....

java.lang.AssertionError: 
Expected :hi
Actual   :null

This is the class I am using

public class ECUserTests(){

    @org.junit.Test
    public void testUserExists(){

        try{
            JSONObject jsonResponse = new JSONObject();
            jsonResponse.put("JSON", "Hello, World!");
            String myString = jsonResponse.getString("JSON");
            assertEquals("hi", myString);
        }catch(JSONException e){
            e.printStackTrace();
        }

Answer 1

I suppose you're running the unit test outside of Android and compiling against android.jar. This lib contains only class and interface signatures without any implementation.

Solution:

Either execute the unit test in Android context (not on PC) or when running on PC, you have to load the "real" JSON library into your test.