48 lines
1.1 KiB
Java
48 lines
1.1 KiB
Java
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package net.sourceforge.tuned;
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import static org.junit.Assert.*;
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import java.io.ByteArrayInputStream;
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import java.io.InputStream;
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import java.nio.channels.Channels;
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import java.nio.charset.Charset;
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import org.junit.Test;
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public class ByteBufferOutputStreamTest {
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@Test
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public void growBufferAsNeeded() throws Exception {
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// initial buffer size of 1, increase size by a factor of 2 if a bigger buffer is needed
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ByteBufferOutputStream buffer = new ByteBufferOutputStream(1, 1.0f);
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buffer.write("asdf".getBytes("utf-8"));
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// check content
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assertEquals("asdf", Charset.forName("utf-8").decode(buffer.getByteBuffer()).toString());
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// check capacity
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assertEquals(4, buffer.capacity());
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}
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@Test
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public void transferFrom() throws Exception {
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InputStream in = new ByteArrayInputStream("asdf".getBytes("utf-8"));
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ByteBufferOutputStream buffer = new ByteBufferOutputStream(4);
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int n = buffer.transferFrom(Channels.newChannel(in));
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// check number of bytes transfered
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assertEquals(4, n);
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// check content
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assertEquals("asdf", Charset.forName("utf-8").decode(buffer.getByteBuffer()).toString());
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}
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}
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