String x = "" + (char) j;
String y = "" + (char) k;
BitSet xcode = encoder.getCode( x );
BitSet ycode = encoder.getCode( y );
int subOf = encoder.superset( xcode, ycode );
if ( x.equals( y ) ) {
assertEquals( 0, subOf );
} else if ( sups[ j - 'A' ].contains( y ) ) {
assertEquals( 1, subOf );