import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertTrue;
import org.junit.Test;

public class TrieSTTest {

  @Test
  public void testSize() {
    TrieST<Integer> st = new TrieST<Integer>();
    assertEquals(0, st.size());
  }

  @Test
  public void testIsEmpty() {
    TrieST<Integer> st = new TrieST<Integer>();
    assertTrue(st.isEmpty());
  }
}

@@ -38,16 +38,62 @@
 Equals;%0A
+import static org.junit.Assert.assertNotNull;%0A
 import s
@@ -178,16 +178,129 @@
 Test %7B%0A%0A
+  @Test%0A  public void testTrieST() %7B%0A    TrieST%3CInteger%3E st = new TrieST%3CInteger%3E();%0A    assertNotNull(st);%0A  %7D%0A%0A
   @Test%0A

Test trie creation