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*
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* FITNESS FOR A PARTICULAR PURPOSE . See the GNU General Public License
* version 2 for more details ( a copy is included in the LICENSE file that
* accompanied this code ) .
*
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*/
/* @test
* @ bug 8218280
* @ summary Make sure marking a line feed within a CRLF sequence works correctly
* @ run testng MarkSplitCRLF
*/
import java.io.IOException;
import java.io.LineNumberReader;
import java.io.Reader;
import java.io.StringReader;
import org.testng.annotations.Test;
import static org.testng.Assert .*;
public class MarkSplitCRLF {
@Test
public static void testSpecifiedBufferSize() throws IOException {
final String string = "foo\r\nbar" ;
try (Reader reader =
new LineNumberReader(new StringReader(string), 5 )) {
reader.read(); // 'f'
reader.read(); // 'o'
reader.read(); // 'o'
reader.read(); // '\r' -> '\n'
reader.mark(1 ); // mark position of '\n'
reader.read(); // 'b'
reader.reset(); // reset to '\n' position
assertEquals(reader.read(), 'b' );
assertEquals(reader.read(), 'a' );
assertEquals(reader.read(), 'r' );
}
}
@Test
public static void testCRNotFollowedByLF() throws IOException {
final String string = "foo\rbar" ;
try (Reader reader =
new LineNumberReader(new StringReader(string), 5 )) {
reader.read(); // 'f'
reader.read(); // 'o'
reader.read(); // 'o'
reader.read(); // '\r'
reader.mark(1 ); // mark position of next character
reader.read(); // 'b'
reader.reset(); // reset to position after '\r'
assertEquals(reader.read(), 'b' );
assertEquals(reader.read(), 'a' );
assertEquals(reader.read(), 'r' );
}
}
@Test
public static void testDefaultBufferSize() throws IOException {
StringBuilder sb = new StringBuilder(8195 );
for (int i = 0 ; i < 8190 ; i++) {
char c = (char )i;
sb.append(c);
}
sb.append('\r' );
sb.append('\n' );
sb.append('X' );
sb.append('Y' );
sb.append('Z' );
final String string = sb.toString();
try (Reader reader = new LineNumberReader(new StringReader(string))) {
for (int i = 0 ; i < 8191 ; i++) reader.read();
reader.mark(1 );
reader.read();
reader.reset();
assertEquals(reader.read(), 'X' );
assertEquals(reader.read(), 'Y' );
assertEquals(reader.read(), 'Z' );
}
}
}
Messung V0.5 in Prozent C=94 H=86 G=89
¤ Dauer der Verarbeitung: 0.12 Sekunden
(vorverarbeitet am 2026-10-11)
¤
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