2 * Copyright (c) 2018 Pantheon Technologies, s.r.o. and others. All rights reserved.
4 * This program and the accompanying materials are made available under the
5 * terms of the Eclipse Public License v1.0 which accompanies this distribution,
6 * and is available at http://www.eclipse.org/legal/epl-v10.html
8 package org.opendaylight.yangtools.yang.parser.stmt.rfc6020;
10 import static org.junit.Assert.assertEquals;
11 import static org.opendaylight.yangtools.yang.parser.stmt.rfc6020.Utils.trimWhitespace;
13 import org.junit.Test;
15 public class UtilsTest {
18 public void testTrimWhitespace() {
19 assertEquals("\n", trimWhitespace("\n", 0));
20 assertEquals("\n", trimWhitespace("\n", 5));
21 assertEquals("\n\n\n\n", trimWhitespace("\n\n\n\n", 0));
22 assertEquals("\n\n\n\n", trimWhitespace("\n\n\n\n", 5));
23 assertEquals("abc\n\n", trimWhitespace("abc \n \n", 0));
24 assertEquals("abc\n\n", trimWhitespace("abc \n \n", 1));
25 assertEquals("abc\n ", trimWhitespace("abc\n ", 0));
26 assertEquals("abc\n", trimWhitespace("abc\n ", 2));
27 assertEquals("abc\n\n", trimWhitespace("abc\n \n", 2));
28 assertEquals("abc\n ", trimWhitespace("abc\n\t ", 0));
29 assertEquals("abc\n ", trimWhitespace("abc\n\t ", 2));
30 assertEquals("abc\n ", trimWhitespace("abc\n\t ", 4));
31 assertEquals("abc\n ", trimWhitespace("abc\n \t", 4));
32 assertEquals("abc\n a\n a\n", trimWhitespace("abc\n\ta\n\t a\n", 4));
33 assertEquals("abc\n\n a\n", trimWhitespace("abc\n\t\n\t a\n", 4));
34 assertEquals(" \ta\n", trimWhitespace(" \ta\n", 3));
35 assertEquals(" \ta\n", trimWhitespace(" \ta\n ", 3));
36 assertEquals(" \ta\n", trimWhitespace(" \ta\n ", 3));
37 assertEquals(" \ta\n", trimWhitespace(" \ta\n ", 3));
38 assertEquals(" \ta\n ", trimWhitespace(" \ta\n ", 3));