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- /*
- * Copyright (c) 2006-2015 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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