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17 package org.apache.commons.io.output;
18
19 import static org.junit.jupiter.api.Assertions.assertEquals;
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21 import java.io.IOException;
22 import java.io.OutputStream;
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24 import org.junit.jupiter.api.BeforeEach;
25 import org.junit.jupiter.api.Test;
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30 public class ProxyOutputStreamTest {
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32 private ByteArrayOutputStream original;
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34 private OutputStream proxied;
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36 @BeforeEach
37 public void setUp() {
38 original = new ByteArrayOutputStream(){
39 @Override
40 public void write(final byte[] ba) throws IOException {
41 if (ba != null){
42 super.write(ba);
43 }
44 }
45 };
46 proxied = new ProxyOutputStream(original);
47 }
48
49 @Test
50 public void testWrite() throws Exception {
51 proxied.write('y');
52 assertEquals(1, original.size());
53 assertEquals('y', original.toByteArray()[0]);
54 }
55
56 @Test
57 public void testWriteNullBaSucceeds() throws Exception {
58 final byte[] ba = null;
59 original.write(ba);
60 proxied.write(ba);
61 }
62 }