diff --git a/validating/tests/QueueTest.java b/validating/tests/QueueTest.java
deleted file mode 100644
index 4e89445e..00000000
--- a/validating/tests/QueueTest.java
+++ /dev/null
@@ -1,143 +0,0 @@
-// validating/tests/QueueTest.java
-// (c)2016 MindView LLC: see Copyright.txt
-// We make no guarantees that this code is fit for any purpose.
-// Visit http://OnJava8.com for more book information.
-package validating;
-import org.junit.jupiter.api.*;
-import static org.junit.jupiter.api.Assertions.*;
-
-public class QueueTest {
-  private Queue queue = new Queue(10);
-  private int i = 0;
-  @BeforeEach
-  public void initialize() {
-    while(i < 5) // Preload with some data
-      queue.put(Integer.toString(i++));
-  }
-  // Support methods:
-  private void showFullness() {
-    assertTrue(queue.full());
-    assertFalse(queue.empty());
-    System.out.println(queue.dump());
-  }
-  private void showEmptiness() {
-    assertFalse(queue.full());
-    assertTrue(queue.empty());
-    System.out.println(queue.dump());
-  }
-  @Test
-  public void full() {
-    System.out.println("testFull");
-    System.out.println(queue.dump());
-    System.out.println(queue.get());
-    System.out.println(queue.get());
-    while(!queue.full())
-      queue.put(Integer.toString(i++));
-    String msg = "";
-    try {
-      queue.put("");
-    } catch(QueueException e) {
-      msg = e.getMessage();
-      System.out.println(msg);
-    }
-    assertEquals(msg, "put() into full Queue");
-    showFullness();
-  }
-  @Test
-  public void empty() {
-    System.out.println("testEmpty");
-    while(!queue.empty())
-      System.out.println(queue.get());
-    String msg = "";
-    try {
-      queue.get();
-    } catch(QueueException e) {
-      msg = e.getMessage();
-      System.out.println(msg);
-    }
-    assertEquals(msg, "get() from empty Queue");
-    showEmptiness();
-  }
-  @Test
-  public void nullPut() {
-    System.out.println("testNullPut");
-    String msg = "";
-    try {
-      queue.put(null);
-    } catch(QueueException e) {
-      msg = e.getMessage();
-      System.out.println(msg);
-    }
-    assertEquals(msg, "put() null item");
-  }
-  @Test
-  public void circularity() {
-    System.out.println("testCircularity");
-    while(!queue.full())
-      queue.put(Integer.toString(i++));
-    showFullness();
-    assertTrue(queue.isWrapped());
-    while(!queue.empty())
-      System.out.println(queue.get());
-    showEmptiness();
-    while(!queue.full())
-      queue.put(Integer.toString(i++));
-    showFullness();
-    while(!queue.empty())
-      System.out.println(queue.get());
-    showEmptiness();
-  }
-}
-/* Output:
-testNullPut
-put() null item
-testCircularity
-in = 0, out = 0, full() = true, empty() = false, queue =
-[0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
-0
-1
-2
-3
-4
-5
-6
-7
-8
-9
-in = 0, out = 0, full() = false, empty() = true, queue =
-[null, null, null, null, null, null, null, null, null,
-null]
-in = 0, out = 0, full() = true, empty() = false, queue =
-[10, 11, 12, 13, 14, 15, 16, 17, 18, 19]
-10
-11
-12
-13
-14
-15
-16
-17
-18
-19
-in = 0, out = 0, full() = false, empty() = true, queue =
-[null, null, null, null, null, null, null, null, null,
-null]
-testFull
-in = 5, out = 0, full() = false, empty() = false, queue =
-[0, 1, 2, 3, 4, null, null, null, null, null]
-0
-1
-put() into full Queue
-in = 2, out = 2, full() = true, empty() = false, queue =
-[10, 11, 2, 3, 4, 5, 6, 7, 8, 9]
-testEmpty
-0
-1
-2
-3
-4
-get() from empty Queue
-in = 5, out = 5, full() = false, empty() = true, queue =
-[null, null, null, null, null, null, null, null, null,
-null]
-*/