test.it.unimi.dsi.lang.ObjectParserTest Maven / Gradle / Ivy

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package it.unimi.dsi.lang;

/*
 * DSI utilities
 *
 * Copyright (C) 2010-2017 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));
}
}