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The DSI utilities are a mish mash of classes accumulated during the last ten years in projects developed at the DSI (Dipartimento di Scienze dell'Informazione, i.e., Information Sciences Department), now DI (Dipartimento di Informatica, i.e., Informatics Department), of the Universita` degli Studi di Milano.
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package it.unimi.dsi.lang;

/*		 
 * DSI utilities
 *
 * Copyright (C) 2010-2016 Sebastiano Vigna 
 *
 *  This library is free software; you can redistribute it and/or modify it
 *  under the terms of the GNU Lesser General Public License as published by the Free
 *  Software Foundation; either version 3 of the License, or (at your option)
 *  any later version.
 *
 *  This library is distributed in the hope that it will be useful, but
 *  WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
 *  or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public License
 *  for more details.
 *
 *  You should have received a copy of the GNU Lesser General Public License
 *  along with this program; if not, see .
 * 
 */

import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertTrue;

import java.util.Set;

import org.junit.Test;

public class ObjectParserTest {
	
	@Test
	public void testObject() throws Exception {
		assertEquals( Object.class, ObjectParser.fromSpec( "java.lang.Object" ).getClass() );
		assertEquals( Object.class, ObjectParser.fromSpec( "java.lang.Object()" ).getClass() );

		assertEquals( Object.class, ObjectParser.fromSpec( "Object", Object.class, new String[] { "java.lang" } ).getClass() );
		assertEquals( Object.class, ObjectParser.fromSpec( "Object", Object.class, new String[] { "foo", "java.lang" } ).getClass() );
	}


	@Test
	public void testString() throws Exception {
		assertEquals( "foo", ObjectParser.fromSpec( "java.lang.String(foo)" ) );
		assertEquals( "foo", ObjectParser.fromSpec( "java.lang.String(\"foo\")" ) );
		assertEquals( "foo", ObjectParser.fromSpec( "java.lang.String( foo)" ) );
		assertEquals( "foo", ObjectParser.fromSpec( "java.lang.String( \"foo\")" ) );
		assertEquals( "foo", ObjectParser.fromSpec( "java.lang.String( foo )" ) );
		assertEquals( "foo", ObjectParser.fromSpec( "java.lang.String( \"f\\oo\" )" ) );
		assertEquals( "f\\oo", ObjectParser.fromSpec( "java.lang.String( f\\oo )" ) );
		assertEquals( "foo", ObjectParser.fromSpec( "java.lang.String( \"foo\" )" ) );
		assertEquals( "fo\"o", ObjectParser.fromSpec( "java.lang.String(\"fo\\\"o\")" ) );
		
		boolean error = false;
		try {
			ObjectParser.fromSpec( "java.lang.String(\"fo\"o\")" );
		}
		catch( IllegalArgumentException thisIsWhatWeWant ) {
			error = true;
		}
		
		assertTrue( error );

		error = false;
		try {
			ObjectParser.fromSpec( "java.lang.String(fo" );
		}
		catch( IllegalArgumentException thisIsWhatWeWant ) {
			error = true;
		}
		
		assertTrue( error );


		error = false;
		try {
			ObjectParser.fromSpec( "java.lang.String()", Set.class );
		}
		catch( ClassCastException thisIsWhatWeWant ) {
			error = true;
		}
		
		assertTrue( error );
		
		assertEquals( "", ObjectParser.fromSpec( "java.lang.String()" ) );
		assertEquals( "", ObjectParser.fromSpec( "java.lang.String" ) );

		assertEquals( ")foo", ObjectParser.fromSpec( "java.lang.String()foo)" ) );
	}
	
	@Test
	public void testTwoStrings() throws Exception {
		final Object context = new Object();
		
		assertEquals( new TwoStrings( "foo", "bar" ), ObjectParser.fromSpec( "it.unimi.dsi.lang.TwoStrings(\"foo\", \"bar\")" ));
		assertEquals( new TwoStrings( "foo", "bar" ), ObjectParser.fromSpec( "it.unimi.dsi.lang.TwoStrings(foo, bar)" ));
		assertEquals( new TwoStrings( "foo", "bar" ), ObjectParser.fromSpec( "it.unimi.dsi.lang.TwoStrings( foo , bar )" ));
		assertEquals( new TwoStrings( "", "" ), ObjectParser.fromSpec( "it.unimi.dsi.lang.TwoStrings(,)" ));
		assertEquals( new TwoStrings( "", "" ), ObjectParser.fromSpec( "it.unimi.dsi.lang.TwoStrings( , )" ));
		assertEquals( new TwoStrings( "", "" ), ObjectParser.fromSpec( "it.unimi.dsi.lang.TwoStrings( ,\"\" )" ));

		assertEquals( new TwoStrings( "foo", "foo" ), ObjectParser.fromSpec( "it.unimi.dsi.lang.TwoStrings(foo)", Object.class, null, new String[] { "getInstance" } ));
		assertEquals( new TwoStrings( "3", "3" ), ObjectParser.fromSpec( "it.unimi.dsi.lang.TwoStrings(foo,bar,boo)", Object.class, null, new String[] { "getInstance" } ));
		assertEquals( new TwoStrings( "foo", "3" ), ObjectParser.fromSpec( "it.unimi.dsi.lang.TwoStrings(foo,bar,boo)", Object.class ));

		assertEquals( new TwoStrings( context, "foo", "bar" ), ObjectParser.fromSpec( context, "it.unimi.dsi.lang.TwoStrings(\"foo\", \"bar\")" ));
		assertEquals( new TwoStrings( context, "foo", "bar" ), ObjectParser.fromSpec( context, "it.unimi.dsi.lang.TwoStrings(foo, bar)" ));
		assertEquals( new TwoStrings( context, "foo", "bar" ), ObjectParser.fromSpec( context, "it.unimi.dsi.lang.TwoStrings( foo , bar )" ));
		assertEquals( new TwoStrings( context, "", "" ), ObjectParser.fromSpec( context, "it.unimi.dsi.lang.TwoStrings(,)" ));
		assertEquals( new TwoStrings( context, "", "" ), ObjectParser.fromSpec( context, "it.unimi.dsi.lang.TwoStrings( , )" ));
		assertEquals( new TwoStrings( context, "", "" ), ObjectParser.fromSpec( context, "it.unimi.dsi.lang.TwoStrings( ,\"\" )" ));

		assertEquals( new TwoStrings( context, "foo", "foo" ), ObjectParser.fromSpec( context, "it.unimi.dsi.lang.TwoStrings(foo)", Object.class, null, new String[] { "getInstance" } ));
		assertEquals( new TwoStrings( context, "3", "3" ), ObjectParser.fromSpec( context, "it.unimi.dsi.lang.TwoStrings(foo,bar,boo)", Object.class, null, new String[] { "getInstance" } ));
		assertEquals( new TwoStrings( context, "foo", "3" ), ObjectParser.fromSpec( context, "it.unimi.dsi.lang.TwoStrings(foo,bar,boo)", Object.class ));
}
}