package joptsimple.examples;
import static java.util.Arrays.*;
import static java.util.Collections.*;
import joptsimple.OptionParser;
import joptsimple.OptionSet;
import org.junit.Test;
import static org.junit.Assert.*;
public class SpecialOptionalArgumentHandlingTest {
@Test
public void handlesNegativeNumberOptionalArguments() {
OptionParser parser = new OptionParser();
parser.accepts( "a" ).withOptionalArg().ofType( Integer.class );
parser.accepts( "2" );
OptionSet options = parser.parse( "-a", "-2" );
assertTrue( options.has( "a" ) );
assertFalse( options.has( "2" ) );
assertEquals( asList( -2 ), options.valuesOf( "a" ) );
options = parser.parse( "-2", "-a" );
assertTrue( options.has( "a" ) );
assertTrue( options.has( "2" ) );
assertEquals( emptyList(), options.valuesOf( "a" ) );
}
}