001/**
002 * Licensed to the Apache Software Foundation (ASF) under one or more
003 * contributor license agreements.  See the NOTICE file distributed with
004 * this work for additional information regarding copyright ownership.
005 * The ASF licenses this file to You under the Apache License, Version 2.0
006 * (the "License"); you may not use this file except in compliance with
007 * the License.  You may obtain a copy of the License at
008 *
009 *     http://www.apache.org/licenses/LICENSE-2.0
010 *
011 * Unless required by applicable law or agreed to in writing, software
012 * distributed under the License is distributed on an "AS IS" BASIS,
013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
014 * See the License for the specific language governing permissions and
015 * limitations under the License.
016 */
017package org.apache.commons.cli2.bug;
018
019import java.io.File;
020
021import junit.framework.TestCase;
022
023import org.apache.commons.cli2.CommandLine;
024import org.apache.commons.cli2.Group;
025import org.apache.commons.cli2.builder.ArgumentBuilder;
026import org.apache.commons.cli2.builder.DefaultOptionBuilder;
027import org.apache.commons.cli2.builder.GroupBuilder;
028import org.apache.commons.cli2.commandline.Parser;
029import org.apache.commons.cli2.option.DefaultOption;
030import org.apache.commons.cli2.validation.FileValidator;
031
032/**
033 * Test case for http://issues.apache.org/jira/browse/CLI-144.
034 *
035 * CLI 2 throws
036 *
037 * <pre>
038 * Exception in thread &quot;main&quot; java.lang.ClassCastException: java.io.File cannot be cast to java.lang.String
039 * </pre>
040 *
041 * when there should be no such exception
042 *
043 * @author David Biesack
044 */
045public class BugCLI144Test extends TestCase {
046        public void testFileValidator() {
047                final DefaultOptionBuilder obuilder = new DefaultOptionBuilder();
048        final ArgumentBuilder abuilder = new ArgumentBuilder();
049        final GroupBuilder gbuilder = new GroupBuilder();
050        DefaultOption fileNameOption = obuilder.withShortName("f")
051                .withLongName("file-name").withRequired(true).withDescription(
052                        "name of an existing file").withArgument(
053                        abuilder.withName("file-name").withValidator(
054                                FileValidator.getExistingFileInstance())
055                                .create()).create();
056        Group options = gbuilder.withName("options").withOption(fileNameOption)
057                .create();
058        Parser parser = new Parser();
059        parser.setHelpTrigger("--help");
060        parser.setGroup(options);
061
062        final String fileName = "src/test/org/apache/commons/cli2/bug/BugCLI144Test.java";
063        CommandLine cl = parser
064                .parseAndHelp(new String[] { "--file-name", fileName });
065        assertNotNull(cl);
066        assertEquals("Wrong file", new File(fileName), cl.getValue(fileNameOption));
067        }
068}