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package joptsimple;
import java.io.StringWriter;
import java.util.Collections;
import java.util.HashMap;
import java.util.Iterator;
import java.util.Map;
import static java.util.Arrays.*;
import org.junit.Before;
import org.junit.Test;
import static org.infinitest.toolkit.CollectionMatchers.*;
import static org.junit.Assert.*;
public class OptionParserAlternateHelpFormatterTest extends AbstractOptionParserFixture {
private StringWriter sink;
private Map<String, ? extends OptionDescriptor> captured;
@Before
public void primeParser() throws Exception {
captured = new HashMap<>();
parser.accepts( "b", "boo" );
parser.formatHelpWith( new HelpFormatter() {
public String format( Map<String, ? extends OptionDescriptor> options ) {
captured = options;
return "some help you are";
}
} );
sink = new StringWriter();
parser.printHelpOn( sink );
}
@Test
public void asksAlternateFormatterForHelpString() {
assertEquals( "some help you are", sink.toString() );
}
@Test
public void getsFedOptionDescriptorsForRecognizedOptions() {
assertEquals( 2, captured.size() );
Iterator<? extends Map.Entry<String,? extends OptionDescriptor>> iterator = captured.entrySet().iterator();
Map.Entry<String, ? extends OptionDescriptor> first = iterator.next();
assertEquals( "[arguments]", first.getKey() );
Map.Entry<String, ? extends OptionDescriptor> second = iterator.next();
assertEquals("b", second.getKey());
OptionDescriptor descriptor = second.getValue();
assertThat( descriptor.options(), hasSameContentsAs( asList( "b" ) ) );
assertEquals( "boo", descriptor.description() );
assertFalse( descriptor.acceptsArguments() );
assertFalse( descriptor.requiresArgument() );
assertEquals( "", descriptor.argumentDescription() );
assertEquals( "", descriptor.argumentTypeIndicator() );
assertEquals( Collections.emptyList(), descriptor.defaultValues() );
}
}
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