1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
|
/*
Derby - Class org.apache.derbyTesting.unitTests.junit.InputStreamUtilTest
Licensed to the Apache Software Foundation (ASF) under one or more
contributor license agreements. See the NOTICE file distributed with
this work for additional information regarding copyright ownership.
The ASF licenses this file to You under the Apache License, Version 2.0
(the "License"); you may not use this file except in compliance with
the License. You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package org.apache.derbyTesting.unitTests.junit;
import java.io.ByteArrayInputStream;
import java.io.EOFException;
import java.io.IOException;
import java.io.InputStream;
import junit.framework.Test;
import org.apache.derby.iapi.services.io.InputStreamUtil;
import org.apache.derbyTesting.junit.BaseTestCase;
import org.apache.derbyTesting.junit.BaseTestSuite;
/**
* Test case for InputStreamUtil.
*/
public class InputStreamUtilTest extends BaseTestCase {
public InputStreamUtilTest(String name) {
super(name);
}
public void testNullStream() throws IOException{
try{
InputStreamUtil.skipUntilEOF(null);
fail("Null InputStream is accepted!");
}catch (NullPointerException e) {
assertTrue(true);
}
try{
InputStreamUtil.skipFully(null, 0);
fail("Null InputStream is accepted!");
}catch (NullPointerException e) {
assertTrue(true);
}
}
public void testSkipUtilEOFWithOddLength() throws IOException{
int[] lengths = {0, 1};
for(int i = 0; i < lengths.length; i++){
int length = lengths[i];
InputStream is = new ByteArrayInputStream(new byte[length]);
assertEquals(length, InputStreamUtil.skipUntilEOF(is));
}
}
public void testSkipUtilEOF() throws IOException{
int[] lengths = {1024, 1024 * 1024};
for(int i = 0; i < lengths.length; i++){
int length = lengths[i];
InputStream is = new ByteArrayInputStream(new byte[length]);
assertEquals(length, InputStreamUtil.skipUntilEOF(is));
}
}
public void testSkipFully() throws IOException{
int length = 1024;
InputStream is = new ByteArrayInputStream(new byte[length]);
InputStreamUtil.skipFully(is, length);
assertEquals(0, InputStreamUtil.skipUntilEOF(is));
is = new ByteArrayInputStream(new byte[length]);
InputStreamUtil.skipFully(is, length - 1);
assertEquals(1, InputStreamUtil.skipUntilEOF(is));
is = new ByteArrayInputStream(new byte[length]);
try {
InputStreamUtil.skipFully(is, length + 1);
fail("Should have Meet EOF!");
} catch (EOFException e) {
assertTrue(true);
}
assertEquals(0, InputStreamUtil.skipUntilEOF(is));
}
/**
* Returns a suite of tests.
*/
public static Test suite() {
return new BaseTestSuite(
InputStreamUtilTest.class, "InputStreamUtil tests");
}
}
|
