2 * XdccDownloader - DuplicateLineSuppressingWriterTest.java - Copyright © 2013 David Roden
4 * This program is free software: you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License as published by
6 * the Free Software Foundation, either version 3 of the License, or
7 * (at your option) any later version.
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
14 * You should have received a copy of the GNU General Public License
15 * along with this program. If not, see <http://www.gnu.org/licenses/>.
18 package net.pterodactylus.xdcc.util.io;
20 import static org.hamcrest.MatcherAssert.assertThat;
21 import static org.hamcrest.Matchers.is;
23 import java.io.IOException;
24 import java.io.StringWriter;
26 import org.junit.Test;
29 * Unit test for {@link DuplicateLineSuppressingWriter}.
31 * @author <a href="mailto:bombe@pterodactylus.net">David ‘Bombe’ Roden</a>
33 public class DuplicateLineSuppressingWriterTest {
35 private final StringWriter stringWriter = new StringWriter();
36 private final DuplicateLineSuppressingWriter duplicateLineSuppressingWriter = new DuplicateLineSuppressingWriter(stringWriter);
39 public void theFirstLineIsWrittenImmediately() throws IOException {
40 duplicateLineSuppressingWriter.write("First Line.\n");
41 assertThat(stringWriter.toString(), is("First Line.\n"));
45 public void twoDifferentLinesAreWrittenOut() throws IOException {
46 duplicateLineSuppressingWriter.write("First Line.\n");
47 duplicateLineSuppressingWriter.write("Second Line.\n");
48 assertThat(stringWriter.toString(), is("First Line.\nSecond Line.\n"));
52 public void twoEqualLinesAreOnlyWrittenOnce() throws IOException {
53 duplicateLineSuppressingWriter.write("First Line.\n");
54 duplicateLineSuppressingWriter.write("First Line.\n");
55 assertThat(stringWriter.toString(), is("First Line.\n"));
59 public void multipleLinesAreSuppressed() throws IOException {
60 duplicateLineSuppressingWriter.write("First Line.\n");
61 duplicateLineSuppressingWriter.write("Second Line.\n");
62 duplicateLineSuppressingWriter.write("Second Line.\n");
63 duplicateLineSuppressingWriter.write("Second Line.\n");
64 duplicateLineSuppressingWriter.write("First Line.\n");
65 duplicateLineSuppressingWriter.write("First Line.\n");
66 assertThat(stringWriter.toString(), is("First Line.\nSecond Line.\nFirst Line.\n"));
70 public void resettingTheWriterAllowsADuplicateLine() throws IOException {
71 duplicateLineSuppressingWriter.write("First Line.\n");
72 duplicateLineSuppressingWriter.write("Second Line.\n");
73 duplicateLineSuppressingWriter.reset();
74 duplicateLineSuppressingWriter.write("Second Line.\n");
75 assertThat(stringWriter.toString(), is("First Line.\nSecond Line.\nSecond Line.\n"));