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- /*
- * Copyright (c) 2006-2017 DMDirc Developers
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated
- * documentation files (the "Software"), to deal in the Software without restriction, including without limitation the
- * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to
- * permit persons to whom the Software is furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in all copies or substantial portions of the
- * Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE
- * WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS
- * OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
- * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
- */
-
- package com.dmdirc.util.collections;
-
- import java.util.NoSuchElementException;
-
- import org.junit.Before;
- import org.junit.Test;
-
- import static org.junit.Assert.assertEquals;
- import static org.junit.Assert.assertFalse;
- import static org.junit.Assert.assertNull;
- import static org.junit.Assert.assertTrue;
-
- public class QueuedLinkedHashSetTest {
-
- private QueuedLinkedHashSet<String> set;
-
- @Before
- public void setup() {
- set = new QueuedLinkedHashSet<>();
- }
-
- @Test(expected = NoSuchElementException.class)
- public void testElementWhenNewlyCreated() {
- set.element();
- }
-
- @Test(expected = NoSuchElementException.class)
- public void testElementWhenEmpty() {
- set.offer("foo");
- set.remove();
- set.element();
- }
-
- @Test
- public void testElementWhenNotEmpty() {
- set.offer("foo");
- assertEquals("foo", set.element());
- }
-
- @Test(expected = NoSuchElementException.class)
- public void testRemoveWhenNewlyCreated() {
- set.remove();
- }
-
- @Test(expected = NoSuchElementException.class)
- public void testRemoveWhenEmpty() {
- set.offer("foo");
- set.remove();
- set.remove();
- }
-
- @Test
- public void testOfferMultipleItems() {
- assertTrue(set.offer("one"));
- assertEquals(1, set.size());
- assertFalse(set.offer("one"));
- assertEquals(1, set.size());
- }
-
- @Test
- public void testRemove() {
- set.offer("one");
- set.offer("two");
- assertEquals("two", set.remove());
- assertEquals("one", set.remove());
- assertTrue(set.isEmpty());
- }
-
- @Test
- public void testPoll() {
- set.offer("one");
- set.offer("two");
- assertEquals("two", set.poll());
- assertEquals("one", set.poll());
- assertTrue(set.isEmpty());
- }
-
- @Test
- public void testPeekWhenNewlyCreated() {
- assertNull(set.peek());
- }
-
- @Test
- public void testPeekWhenEmpty() {
- set.offer("foo");
- set.remove();
- assertNull(set.peek());
- }
-
- @Test
- public void testPeek() {
- set.offer("one");
- set.offer("two");
- assertEquals("two", set.peek());
- assertEquals("two", set.peek());
- assertEquals(2, set.size());
- }
-
- @Test
- public void testOfferAndMoveExisting() {
- set.offer("one");
- set.offer("two");
- set.offerAndMove("one");
- assertEquals("one", set.peek());
- assertEquals(2, set.size());
- }
-
- @Test
- public void testOfferAndMoveNew() {
- set.offer("one");
- set.offer("two");
- set.offerAndMove("three");
- assertEquals("three", set.peek());
- assertEquals(3, set.size());
- }
-
- }
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