41 lines
1.2 KiB
Java
41 lines
1.2 KiB
Java
// SPDX-FileCopyrightText: 2021 Paul Schaub <vanitasvitae@fsfe.org>
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//
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// SPDX-License-Identifier: Apache-2.0
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package sop.util;
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import static org.junit.jupiter.api.Assertions.assertEquals;
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import static org.junit.jupiter.api.Assertions.assertThrows;
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import java.io.ByteArrayOutputStream;
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import java.io.IOException;
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import java.nio.charset.StandardCharsets;
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import org.junit.jupiter.api.Test;
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public class ProxyOutputStreamTest {
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@Test
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public void replaceOutputStreamThrowsNPEForNull() {
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ProxyOutputStream proxy = new ProxyOutputStream();
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assertThrows(NullPointerException.class, () -> proxy.replaceOutputStream(null));
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}
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@Test
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public void testSwappingStreamPreservesWrittenBytes() throws IOException {
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byte[] firstSection = "Foo\nBar\n".getBytes(StandardCharsets.UTF_8);
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byte[] secondSection = "Baz\n".getBytes(StandardCharsets.UTF_8);
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ProxyOutputStream proxy = new ProxyOutputStream();
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proxy.write(firstSection);
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ByteArrayOutputStream swappedStream = new ByteArrayOutputStream();
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proxy.replaceOutputStream(swappedStream);
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proxy.write(secondSection);
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proxy.close();
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assertEquals("Foo\nBar\nBaz\n", swappedStream.toString());
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}
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}
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