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package com.trilead.ssh2.crypto;
import org.junit.Test;
import java.io.IOException;
import static org.junit.Assert.*;
import static org.hamcrest.CoreMatchers.*;
/**
* Created by kenny on 12/25/15.
*/
public class SimpleDERReaderTest {
@Test
public void readLength_Extended_OverlyLongLength() throws Exception {
byte[] vector = new byte[] {
(byte) 0x85, (byte) 0xFF, (byte) 0xFF, (byte) 0xFF, (byte) 0xFF, (byte) 0xFF
};
SimpleDERReader reader = new SimpleDERReader(vector);
assertEquals(-1, reader.readLength());
}
@Test
public void readLength_Extended_TooLongForInt() throws Exception {
byte[] vector = new byte[] {
(byte) 0x84, (byte) 0xFF, (byte) 0xFF, (byte) 0xFF, (byte) 0xFF
};
SimpleDERReader reader = new SimpleDERReader(vector);
assertEquals(-1, reader.readLength());
}
@Test
public void readLength_Extended_Zero() throws Exception {
byte[] vector = new byte[] {
(byte) 0x80, (byte) 0x01
};
SimpleDERReader reader = new SimpleDERReader(vector);
assertEquals(-1, reader.readLength());
}
@Test
public void readLength_Extended_Valid() throws Exception {
byte[] vector = new byte[] {
(byte) 0x82, (byte) 0x05, (byte) 0xFF
};
SimpleDERReader reader = new SimpleDERReader(vector);
assertEquals(0x5FF, reader.readLength());
}
@Test
public void readLength_Short_Zero() throws Exception {
byte[] vector = new byte[] {
(byte) 0x00
};
SimpleDERReader reader = new SimpleDERReader(vector);
assertEquals(0, reader.readLength());
}
@Test
public void readLength_Short_Regular() throws Exception {
byte[] vector = new byte[] {
(byte) 0x09
};
SimpleDERReader reader = new SimpleDERReader(vector);
assertEquals(9, reader.readLength());
}
}
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