13. Avoid Aardvark

Google Presentation with all of the ArrayList in-class problems

• ArrayList 5, page 12

public static void avoidAardvarks (ArrayList<String> data)

Testing

• Include the boilerplate.

    import org.junit.*;
    import org.junit.runner.*;
    import static org.junit.Assert.*;
  

• See code at the end of the presentation (linked above) if you prefer not to just “add” to results.

• Recall: @Before and @Test must appear before functions, not statements.

• Testing ArrayList is simplest if you use the toArray() method and assertArrayEquals.

@Test
public void simple_1() {
    String[] correct = { "yes" };
    
    ArrayList<String> data = new ArrayList<>();
    data.add("not");
    data.add("yet");

    avoidAardvarks(data);
    
    assertArrayEquals(correct, data.toArray());
}