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package org.simpleframework.transport;
import java.io.ByteArrayInputStream;
import java.io.IOException;
import java.io.InputStream;
import junit.framework.TestCase;
public class TransportCursorTest extends TestCase {
private static final String ALPHABET = "abcdefghijklmnopqrstuvwxyz";
private static final String SOURCE = ALPHABET + "\r\n";
public void testCursor() throws IOException {
byte[] data = SOURCE.getBytes("ISO-8859-1");
InputStream source = new ByteArrayInputStream(data);
Transport transport = new StreamTransport(source, System.out);
ByteCursor cursor = new TransportCursor(transport);
byte[] buffer = new byte[1024];
assertEquals(cursor.ready(), data.length);
assertEquals(26, cursor.read(buffer, 0, 26));
assertEquals(26, cursor.reset(26));
assertEquals(new String(buffer, 0, 26), ALPHABET);
assertEquals(cursor.ready(), data.length);
assertEquals(26, cursor.read(buffer, 0, 26));
assertEquals(26, cursor.reset(26));
assertEquals(new String(buffer, 0, 26), ALPHABET);
assertEquals(cursor.ready(), data.length);
assertEquals(4, cursor.read(buffer, 0, 4));
assertEquals(4, cursor.reset(26));
assertEquals(new String(buffer, 0, 4), "abcd");
assertEquals(cursor.ready(), data.length);
assertEquals(4, cursor.read(buffer, 0, 4));
assertEquals(4, cursor.reset(26));
assertEquals(new String(buffer, 0, 4), "abcd");
assertEquals(cursor.ready(), data.length);
assertEquals(4, cursor.read(buffer, 0, 4));
assertEquals(new String(buffer, 0, 4), "abcd");
assertEquals(cursor.ready(), data.length - 4);
assertEquals(4, cursor.read(buffer, 0, 4));
assertEquals(new String(buffer, 0, 4), "efgh");
assertEquals(cursor.ready(), data.length - 8);
assertEquals(4, cursor.read(buffer, 0, 4));
assertEquals(new String(buffer, 0, 4), "ijkl");
assertEquals(cursor.ready(), data.length - 12);
assertEquals(12, cursor.reset(12));
assertEquals(10, cursor.read(buffer, 0, 10));
assertEquals(new String(buffer, 0, 10), "abcdefghij");
cursor.push("1234".getBytes("ISO-8859-1"));
cursor.push("5678".getBytes("ISO-8859-1"));
cursor.push("90".getBytes("ISO-8859-1"));
assertEquals(cursor.ready(), 10);
assertEquals(2, cursor.read(buffer, 0, 2));
assertEquals(new String(buffer, 0, 2), "90");
assertEquals(cursor.ready(), 8);
assertEquals(4, cursor.read(buffer, 0, 4));
assertEquals(new String(buffer, 0, 4), "5678");
assertEquals(cursor.ready(), 4);
assertEquals(4, cursor.read(buffer, 0, 4));
assertEquals(new String(buffer, 0, 4), "1234");
assertEquals(4, cursor.reset(4));
assertEquals(cursor.ready(), 4);
assertEquals(4, cursor.read(buffer, 0, 4));
assertEquals(new String(buffer, 0, 4), "1234");
assertEquals(8, cursor.read(buffer, 0, 8));
assertEquals(new String(buffer, 0, 8), "klmnopqr");
}
}
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