public void testMarkSupported(){
  byte[] data=new byte[]{-127,-100,-50,-10,-1,0,1,10,50,127};
  TestInputStream tis=new TestInputStream(data);
  CipherInputStream cis=new CipherInputStream(tis,new NullCipher());
  assertFalse("The returned by markSupported() method value " + "should be false.",cis.markSupported());
}

public void testMarkSupported ( ) { byte [ ] data = new byte [ ] { - 127 , - 100 , - 50 , - 10 , - 1 , 0 , 1 , 10 , 50 , 127 } ; TestInputStream tis = new TestInputStream ( data ) ; CipherInputStream cis = new CipherInputStream ( tis , new NullCipher ( ) ) ; assertFalse ( "The returned by markSupported() method value " + "should be false." , cis . markSupported ( ) ) ; }
marksupported ( ) method testing . tests that mark is not supported .
