InputStreamReaderTest.java revision cc05ad238516f1303687aba4a978e24e57c0c07a 
1/* Licensed to the Apache Software Foundation (ASF) under one or more
2 * contributor license agreements.  See the NOTICE file distributed with
3 * this work for additional information regarding copyright ownership.
4 * The ASF licenses this file to You under the Apache License, Version 2.0
5 * (the "License"); you may not use this file except in compliance with
6 * the License.  You may obtain a copy of the License at
7 *
8 *     http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17package org.apache.harmony.luni.tests.java.io;
18
19import dalvik.annotation.TestTargets;
20import dalvik.annotation.TestLevel;
21import dalvik.annotation.TestTargetNew;
22import dalvik.annotation.TestTargetClass;
23
24import java.io.ByteArrayInputStream;
25import java.io.IOException;
26import java.io.InputStreamReader;
27import java.io.UnsupportedEncodingException;
28
29import junit.framework.TestCase;
30@TestTargetClass(InputStreamReader.class)
31public class InputStreamReaderTest extends TestCase {
32
33    @TestTargets({
34        @TestTargetNew(
35            level = TestLevel.COMPLETE,
36            notes = "",
37            method = "InputStreamReader",
38            args = {java.io.InputStream.class, java.lang.String.class}
39        ),
40        @TestTargetNew(
41            level = TestLevel.COMPLETE,
42            notes = "",
43            method = "getEncoding",
44            args = {}
45        )
46    })
47    public void testGetEncoding_StreamClosed() throws IOException {
48        InputStreamReader in = null;
49        byte b[] = new byte[5];
50        in = new InputStreamReader(new ByteArrayInputStream(b), "UTF-16BE");
51        in.close();
52        String result = in.getEncoding();
53        assertNull(result);
54    }
55
56    @TestTargets({
57        @TestTargetNew(
58            level = TestLevel.COMPLETE,
59            notes = "",
60            method = "InputStreamReader",
61            args = {java.io.InputStream.class, java.lang.String.class}
62        ),
63        @TestTargetNew(
64            level = TestLevel.COMPLETE,
65            notes = "",
66            method = "getEncoding",
67            args = {}
68        )
69    })
70    public void testGetEncoding_NotHistorical() {
71        InputStreamReader in = null;
72        try {
73            in = new InputStreamReader(System.in, "UTF-16BE");
74        } catch (UnsupportedEncodingException e) {
75            // ok
76        }
77        String result = in.getEncoding();
78        assertEquals("UnicodeBigUnmarked", result);
79
80    }
81
82}
83