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/*
The MIT License
Copyright (c) 2004-2015 Paul R. Holser, Jr.
Permission is hereby granted, free of charge, to any person obtaining
a copy of this software and associated documentation files (the
"Software"), to deal in the Software without restriction, including
without limitation the rights to use, copy, modify, merge, publish,
distribute, sublicense, and/or sell copies of the Software, and to
permit persons to whom the Software is furnished to do so, subject to
the following conditions:
The above copyright notice and this permission notice shall be
included in all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
package joptsimple;
import java.util.NoSuchElementException;
import static java.util.Collections.*;
import org.junit.Rule;
import org.junit.Test;
import org.junit.rules.ExpectedException;
import static org.infinitest.toolkit.CollectionMatchers.*;
import static org.junit.Assert.*;
import static org.junit.rules.ExpectedException.*;
/**
* @author <a href="mailto:pholser@alumni.rice.edu">Paul Holser</a>
*/
public class OptionSpecTokenizerTest {
@Rule public final ExpectedException thrown = none();
@Test
public void tokenizeEmpty() {
assertNoMoreTokens( new OptionSpecTokenizer( "" ) );
}
@Test
public void tokenizeOptionsWithoutArguments() {
OptionSpecTokenizer lexer = new OptionSpecTokenizer( "ab" );
assertNextTokenTakesNoArgument( lexer, 'a', false );
assertNextTokenTakesNoArgument( lexer, 'b', false );
assertNoMoreTokens( lexer );
}
@Test
public void tokenizeOptionsWithRequiredArguments() {
OptionSpecTokenizer lexer = new OptionSpecTokenizer( "c:d:" );
assertNextTokenRequiresAnArgument( lexer, 'c', false );
assertNextTokenRequiresAnArgument( lexer, 'd', false );
assertNoMoreTokens( lexer );
}
@Test
public void tokenizeOptionsWithOptionalArguments() {
OptionSpecTokenizer lexer = new OptionSpecTokenizer( "e::f::" );
assertNextTokenTakesAnOptionalArgument( lexer, 'e', false );
assertNextTokenTakesAnOptionalArgument( lexer, 'f', false );
assertNoMoreTokens( lexer );
}
@Test
public void tokenizeOptionsWithMixtureOfSpecTypes() {
OptionSpecTokenizer lexer = new OptionSpecTokenizer( "gh:i::j" );
assertNextTokenTakesNoArgument( lexer, 'g', false );
assertNextTokenRequiresAnArgument( lexer, 'h', false );
assertNextTokenTakesAnOptionalArgument( lexer, 'i', false );
assertNextTokenTakesNoArgument( lexer, 'j', false );
assertNoMoreTokens( lexer );
}
@Test
public void wByItself() {
OptionSpecTokenizer lexer = new OptionSpecTokenizer( "W" );
assertNextTokenTakesNoArgument( lexer, 'W', false );
assertNoMoreTokens( lexer );
}
@Test
public void wRequiredArg() {
OptionSpecTokenizer lexer = new OptionSpecTokenizer( "W:" );
assertNextTokenRequiresAnArgument( lexer, 'W', false );
assertNoMoreTokens( lexer );
}
@Test
public void wOptionalArg() {
OptionSpecTokenizer lexer = new OptionSpecTokenizer( "W::" );
assertNextTokenTakesAnOptionalArgument( lexer, 'W', false );
assertNoMoreTokens( lexer );
}
@Test
public void alternativeLongOptionsMarker() {
OptionSpecTokenizer lexer = new OptionSpecTokenizer( "W;" );
assertNextTokenRequiresAnArgument( lexer, 'W', false );
assertNoMoreTokens( lexer );
}
@Test
public void tokenizeOptionsWithoutArgumentsAndHelpMarker() {
OptionSpecTokenizer lexer = new OptionSpecTokenizer( "ab*" );
assertNextTokenTakesNoArgument( lexer, 'a', false );
assertNextTokenTakesNoArgument( lexer, 'b', true );
assertNoMoreTokens( lexer );
}
@Test
public void tokenizeOptionsWithRequiredArgumentsAndHelpMarker() {
OptionSpecTokenizer lexer = new OptionSpecTokenizer( "c*:d:" );
assertNextTokenRequiresAnArgument( lexer, 'c', true );
assertNextTokenRequiresAnArgument( lexer, 'd', false );
assertNoMoreTokens( lexer );
}
@Test
public void tokenizeOptionsWithOptionalArgumentsAndHelpMarker() {
OptionSpecTokenizer lexer = new OptionSpecTokenizer( "e*::f*::" );
assertNextTokenTakesAnOptionalArgument( lexer, 'e', true );
assertNextTokenTakesAnOptionalArgument( lexer, 'f', true );
assertNoMoreTokens( lexer );
}
@Test
public void tokenizeOptionsWithMixtureOfSpecTypesAndHelpMarker() {
OptionSpecTokenizer lexer = new OptionSpecTokenizer( "g*h:i*::j" );
assertNextTokenTakesNoArgument( lexer, 'g', true );
assertNextTokenRequiresAnArgument( lexer, 'h', false );
assertNextTokenTakesAnOptionalArgument( lexer, 'i', true );
assertNextTokenTakesNoArgument( lexer, 'j', false );
assertNoMoreTokens( lexer );
}
@Test
public void wByItselfWithHelpMarker() {
OptionSpecTokenizer lexer = new OptionSpecTokenizer( "W*" );
assertNextTokenTakesNoArgument( lexer, 'W', true );
assertNoMoreTokens( lexer );
}
@Test
public void wRequiredArgWithHelpMarker() {
OptionSpecTokenizer lexer = new OptionSpecTokenizer( "W*:" );
assertNextTokenRequiresAnArgument( lexer, 'W', true );
assertNoMoreTokens( lexer );
}
@Test
public void wOptionalArgWithHelpMarker() {
OptionSpecTokenizer lexer = new OptionSpecTokenizer( "W*::" );
assertNextTokenTakesAnOptionalArgument( lexer, 'W', true );
assertNoMoreTokens( lexer );
}
@Test
public void alternativeLongOptionsMarkerWithHelpMarker() {
OptionSpecTokenizer lexer = new OptionSpecTokenizer( "W*;" );
assertNextTokenTakesNoArgument( lexer, 'W', true );
}
private void assertNoMoreTokens( OptionSpecTokenizer lexer ) {
assertFalse( lexer.hasMore() );
thrown.expect( NoSuchElementException.class );
lexer.next();
}
private static void assertNextTokenTakesNoArgument( OptionSpecTokenizer lexer, char option, boolean forHelp ) {
assertNextToken( lexer, option, false, false, forHelp );
}
private static void assertNextTokenRequiresAnArgument( OptionSpecTokenizer lexer, char option, boolean forHelp ) {
assertNextToken( lexer, option, true, true, forHelp );
}
private static void assertNextTokenTakesAnOptionalArgument( OptionSpecTokenizer lexer, char option,
boolean forHelp ) {
assertNextToken( lexer, option, true, false, forHelp );
}
private static void assertNextToken( OptionSpecTokenizer lexer, char option, boolean acceptsArguments,
boolean requiresArgument, boolean forHelp ) {
assertTrue( "no more tokens?", lexer.hasMore() );
AbstractOptionSpec<?> spec = lexer.next();
assertThat( "option?", spec.options(), hasSameContentsAs( singleton( String.valueOf( option ) ) ) );
assertEquals( "accepts args?", acceptsArguments, spec.acceptsArguments() );
assertEquals( "requires arg?", requiresArgument, spec.requiresArgument() );
assertEquals( "for help?", forHelp, spec.isForHelp() );
}
}
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