1 /*
2 * Licensed to the Apache Software Foundation (ASF) under one or more
3 * contributor license agreements. See the NOTICE file distributed with
4 * this work for additional information regarding copyright ownership.
5 * The ASF licenses this file to You under the Apache License, Version 2.0
6 * (the "License"); you may not use this file except in compliance with
7 * the License. You may obtain a copy of the License at
8 *
9 * https://www.apache.org/licenses/LICENSE-2.0
10 *
11 * Unless required by applicable law or agreed to in writing, software
12 * distributed under the License is distributed on an "AS IS" BASIS,
13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 * See the License for the specific language governing permissions and
15 * limitations under the License.
16 */
17 package org.apache.commons.text.translate;
18
19 import static org.junit.jupiter.api.Assertions.assertEquals;
20 import static org.junit.jupiter.api.Assertions.assertFalse;
21 import static org.junit.jupiter.api.Assertions.assertTrue;
22
23 import java.io.CharArrayWriter;
24 import java.io.IOException;
25
26 import org.junit.jupiter.api.Test;
27
28 /**
29 * Tests {@link UnicodeUnpairedSurrogateRemover}.
30 */
31 class UnicodeUnpairedSurrogateRemoverTest {
32 final UnicodeUnpairedSurrogateRemover subject = new UnicodeUnpairedSurrogateRemover();
33 final CharArrayWriter writer = new CharArrayWriter(); // nothing is ever written to it
34
35 @Test
36 void testInvalidCharacters() throws IOException {
37 assertTrue(subject.translate(0xd800, writer));
38 assertTrue(subject.translate(0xdfff, writer));
39 assertEquals(0, writer.size());
40 }
41
42 @Test
43 void testValidCharacters() throws IOException {
44 assertFalse(subject.translate(0xd7ff, writer));
45 assertFalse(subject.translate(0xe000, writer));
46 assertEquals(0, writer.size());
47 }
48 }
49