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* http://www.apache.org/licenses/LICENSE-2.0 *
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package org.apache.james.mime4j.io;
import org.apache.james.mime4j.io.BufferedLineReaderInputStream;
import java.io.ByteArrayInputStream;
import junit.framework.TestCase;
public class BufferedLineReaderInputStreamBufferTest extends TestCase {
public void testInvalidInput() throws Exception {
String text = "blah blah yada yada";
byte[] b1 = text.getBytes("US-ASCII");
String pattern = "blah";
byte[] b2 = pattern.getBytes("US-ASCII");
BufferedLineReaderInputStream inbuffer = new BufferedLineReaderInputStream(new ByteArrayInputStream(b1), 4096);
inbuffer.fillBuffer();
assertEquals('b', inbuffer.read());
assertEquals('l', inbuffer.read());
try {
inbuffer.byteAt(1);
fail("IndexOutOfBoundsException should have been thrown");
} catch (IndexOutOfBoundsException expected) {
}
try {
inbuffer.byteAt(20);
fail("IndexOutOfBoundsException should have been thrown");
} catch (IndexOutOfBoundsException expected) {
}
try {
inbuffer.indexOf(b2, -1, 3);
fail("IndexOutOfBoundsException should have been thrown");
} catch (IndexOutOfBoundsException expected) {
}
try {
inbuffer.indexOf(b2, 1, 3);
fail("IndexOutOfBoundsException should have been thrown");
} catch (IndexOutOfBoundsException expected) {
}
try {
inbuffer.indexOf(b2, 2, -1);
fail("IndexOutOfBoundsException should have been thrown");
} catch (IndexOutOfBoundsException expected) {
}
try {
inbuffer.indexOf(b2, 2, 18);
fail("IndexOutOfBoundsException should have been thrown");
} catch (IndexOutOfBoundsException expected) {
}
assertEquals(5, inbuffer.indexOf(b2, 2, 17));
try {
inbuffer.indexOf((byte)' ', -1, 3);
fail("IndexOutOfBoundsException should have been thrown");
} catch (IndexOutOfBoundsException expected) {
}
try {
inbuffer.indexOf((byte)' ', 1, 3);
fail("IndexOutOfBoundsException should have been thrown");
} catch (IndexOutOfBoundsException expected) {
}
try {
inbuffer.indexOf((byte)' ', 2, -1);
fail("IndexOutOfBoundsException should have been thrown");
} catch (IndexOutOfBoundsException expected) {
}
try {
inbuffer.indexOf((byte)' ', 2, 18);
fail("IndexOutOfBoundsException should have been thrown");
} catch (IndexOutOfBoundsException expected) {
}
assertEquals(10, inbuffer.indexOf((byte)'y', 2, 17));
}
public void testBasicOperations() throws Exception {
String text = "bla bla yada yada haha haha";
byte[] b1 = text.getBytes("US-ASCII");
BufferedLineReaderInputStream inbuffer = new BufferedLineReaderInputStream(new ByteArrayInputStream(b1), 4096);
inbuffer.fillBuffer();
assertEquals(0, inbuffer.pos());
assertEquals(27, inbuffer.limit());
assertEquals(27, inbuffer.length());
inbuffer.read();
inbuffer.read();
assertEquals(2, inbuffer.pos());
assertEquals(27, inbuffer.limit());
assertEquals(25, inbuffer.length());
byte[] tmp1 = new byte[3];
assertEquals(3, inbuffer.read(tmp1));
assertEquals(5, inbuffer.pos());
assertEquals(27, inbuffer.limit());
assertEquals(22, inbuffer.length());
byte[] tmp2 = new byte[22];
assertEquals(22, inbuffer.read(tmp2));
assertEquals(27, inbuffer.pos());
assertEquals(27, inbuffer.limit());
assertEquals(0, inbuffer.length());
assertEquals(-1, inbuffer.read(tmp1));
assertEquals(-1, inbuffer.read(tmp1));
assertEquals(-1, inbuffer.read());
assertEquals(-1, inbuffer.read());
}
public void testPatternMatching1() throws Exception {
String text = "blabla d is the word";
String pattern = "d";
byte[] b1 = text.getBytes("US-ASCII");
byte[] b2 = pattern.getBytes("US-ASCII");
BufferedLineReaderInputStream inbuffer = new BufferedLineReaderInputStream(new ByteArrayInputStream(b1), 4096);
inbuffer.fillBuffer();
int i = inbuffer.indexOf(b2);
assertEquals(7, i);
}
public void testPatternMatching2() throws Exception {
String text = "disddisdissdsidsidsiid";
String pattern = "siid";
byte[] b1 = text.getBytes("US-ASCII");
byte[] b2 = pattern.getBytes("US-ASCII");
BufferedLineReaderInputStream inbuffer = new BufferedLineReaderInputStream(new ByteArrayInputStream(b1), 4096);
inbuffer.fillBuffer();
int i = inbuffer.indexOf(b2);
assertEquals(18, i);
}
public void testPatternMatching3() throws Exception {
String text = "bla bla yada yada haha haha";
String pattern = "blah";
byte[] b1 = text.getBytes("US-ASCII");
byte[] b2 = pattern.getBytes("US-ASCII");
BufferedLineReaderInputStream inbuffer = new BufferedLineReaderInputStream(new ByteArrayInputStream(b1), 4096);
inbuffer.fillBuffer();
int i = inbuffer.indexOf(b2);
assertEquals(-1, i);
}
public void testPatternMatching4() throws Exception {
String text = "bla bla yada yada haha haha";
String pattern = "bla";
byte[] b1 = text.getBytes("US-ASCII");
byte[] b2 = pattern.getBytes("US-ASCII");
BufferedLineReaderInputStream inbuffer = new BufferedLineReaderInputStream(new ByteArrayInputStream(b1), 4096);
inbuffer.fillBuffer();
int i = inbuffer.indexOf(b2);
assertEquals(0, i);
}
public void testPatternOutOfBound() throws Exception {
String text = "bla bla yada yada haha haha";
String pattern1 = "bla bla";
byte[] b1 = text.getBytes("US-ASCII");
byte[] b2 = pattern1.getBytes("US-ASCII");
BufferedLineReaderInputStream inbuffer = new BufferedLineReaderInputStream(new ByteArrayInputStream(b1), 4096);
inbuffer.fillBuffer();
byte[] tmp = new byte[3];
inbuffer.read(tmp);
int i = inbuffer.indexOf(b2, inbuffer.pos(), inbuffer.length());
assertEquals(-1, i);
i = inbuffer.indexOf(b2, inbuffer.pos(), inbuffer.length() - 1);
assertEquals(-1, i);
}
public void testCharOutOfBound() throws Exception {
String text = "zzz blah blah blah ggg";
byte[] b1 = text.getBytes("US-ASCII");
BufferedLineReaderInputStream inbuffer = new BufferedLineReaderInputStream(new ByteArrayInputStream(b1), 4096);
inbuffer.fillBuffer();
byte[] tmp = new byte[3];
inbuffer.read(tmp);
int i = inbuffer.indexOf((byte)'z', inbuffer.pos(), inbuffer.length());
assertEquals(-1, i);
i = inbuffer.indexOf((byte)'g', inbuffer.pos(), inbuffer.length() - 3);
assertEquals(-1, i);
}
public void test0xFFInBinaryStream() throws Exception {
byte[] b1 = new byte[] {1, 2, 3, (byte) 0xff, 10, 1, 2, 3};
byte[] b2 = new byte[] {10};
BufferedLineReaderInputStream inbuffer = new BufferedLineReaderInputStream(new ByteArrayInputStream(b1), 4096);
inbuffer.fillBuffer();
int i = inbuffer.indexOf(b2);
assertEquals(4, i);
}
}