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17 package org.apache.commons.compress.archivers.zip;
18
19 import static org.junit.jupiter.api.Assertions.assertEquals;
20 import static org.junit.jupiter.api.Assertions.assertNotNull;
21 import static org.junit.jupiter.api.Assertions.assertThrows;
22 import static org.mockito.ArgumentMatchers.any;
23 import static org.mockito.ArgumentMatchers.eq;
24 import static org.mockito.Mockito.mock;
25 import static org.mockito.Mockito.times;
26 import static org.mockito.Mockito.verify;
27 import static org.mockito.Mockito.when;
28
29 import java.io.IOException;
30 import java.nio.ByteBuffer;
31 import java.nio.channels.FileChannel;
32 import java.nio.charset.StandardCharsets;
33 import java.nio.file.Path;
34
35 import org.apache.commons.compress.AbstractTempDirTest;
36 import org.junit.jupiter.api.Test;
37
38
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40
41 public class FileRandomAccessOutputStreamTest extends AbstractTempDirTest {
42
43 @Test
44 public void testChannelReturn() throws IOException {
45 final Path file = newTempPath("testChannel");
46 try (FileRandomAccessOutputStream stream = new FileRandomAccessOutputStream(file)) {
47 assertNotNull(stream.channel());
48 }
49 }
50
51 @Test
52 public void testWrite() throws IOException {
53 final FileChannel channel = mock(FileChannel.class);
54 final FileRandomAccessOutputStream stream = new FileRandomAccessOutputStream(channel);
55 when(channel.write((ByteBuffer) any())).thenAnswer(answer -> {
56 ((ByteBuffer) answer.getArgument(0)).position(5);
57 return 5;
58 }).thenAnswer(answer -> {
59 ((ByteBuffer) answer.getArgument(0)).position(6);
60 return 6;
61 });
62 stream.write("hello".getBytes(StandardCharsets.UTF_8));
63 stream.write("world\n".getBytes(StandardCharsets.UTF_8));
64 verify(channel, times(2)).write((ByteBuffer) any());
65
66 assertEquals(11, stream.position());
67 }
68
69 @Test
70 public void testWriteFullyAt_whenFullAtOnce_thenSucceed() throws IOException {
71 final FileChannel channel = mock(FileChannel.class);
72 final FileRandomAccessOutputStream stream = new FileRandomAccessOutputStream(channel);
73 when(channel.write((ByteBuffer) any(), eq(20L))).thenAnswer(answer -> {
74 ((ByteBuffer) answer.getArgument(0)).position(5);
75 return 5;
76 });
77 when(channel.write((ByteBuffer) any(), eq(30L))).thenAnswer(answer -> {
78 ((ByteBuffer) answer.getArgument(0)).position(6);
79 return 6;
80 });
81 stream.writeFully("hello".getBytes(StandardCharsets.UTF_8), 20);
82 stream.writeFully("world\n".getBytes(StandardCharsets.UTF_8), 30);
83
84 verify(channel, times(1)).write((ByteBuffer) any(), eq(20L));
85 verify(channel, times(1)).write((ByteBuffer) any(), eq(30L));
86
87 assertEquals(0, stream.position());
88 }
89
90 @Test
91 public void testWriteFullyAt_whenFullButPartial_thenSucceed() throws IOException {
92 final FileChannel channel = mock(FileChannel.class);
93 final FileRandomAccessOutputStream stream = new FileRandomAccessOutputStream(channel);
94 when(channel.write((ByteBuffer) any(), eq(20L))).thenAnswer(answer -> {
95 ((ByteBuffer) answer.getArgument(0)).position(3);
96 return 3;
97 });
98 when(channel.write((ByteBuffer) any(), eq(23L))).thenAnswer(answer -> {
99 ((ByteBuffer) answer.getArgument(0)).position(5);
100 return 2;
101 });
102 when(channel.write((ByteBuffer) any(), eq(30L))).thenAnswer(answer -> {
103 ((ByteBuffer) answer.getArgument(0)).position(6);
104 return 6;
105 });
106 stream.writeFully("hello".getBytes(StandardCharsets.UTF_8), 20);
107 stream.writeFully("world\n".getBytes(StandardCharsets.UTF_8), 30);
108
109 verify(channel, times(1)).write((ByteBuffer) any(), eq(20L));
110 verify(channel, times(1)).write((ByteBuffer) any(), eq(23L));
111 verify(channel, times(1)).write((ByteBuffer) any(), eq(30L));
112
113 assertEquals(0, stream.position());
114 }
115
116 @Test
117 public void testWriteFullyAt_whenPartial_thenFail() throws IOException {
118 final FileChannel channel = mock(FileChannel.class);
119 final FileRandomAccessOutputStream stream = new FileRandomAccessOutputStream(channel);
120 when(channel.write((ByteBuffer) any(), eq(20L))).thenAnswer(answer -> {
121 ((ByteBuffer) answer.getArgument(0)).position(3);
122 return 3;
123 });
124 when(channel.write((ByteBuffer) any(), eq(23L))).thenAnswer(answer -> 0);
125 assertThrows(IOException.class, () -> stream.writeFully("hello".getBytes(StandardCharsets.UTF_8), 20));
126
127 verify(channel, times(1)).write((ByteBuffer) any(), eq(20L));
128 verify(channel, times(1)).write((ByteBuffer) any(), eq(23L));
129 verify(channel, times(0)).write((ByteBuffer) any(), eq(25L));
130
131 assertEquals(0, stream.position());
132 }
133 }