DynamicObjectFactoryTest.java

/*
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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 * This code is free software; you can redistribute it and/or modify it
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 *
 * This code 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 General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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package com.oracle.truffle.object.basic.test;

import org.junit.Assert;
import org.junit.Test;

import com.oracle.truffle.api.object.DynamicObject;
import com.oracle.truffle.api.object.DynamicObjectFactory;
import com.oracle.truffle.api.object.Layout;
import com.oracle.truffle.api.object.ObjectType;
import com.oracle.truffle.api.object.Shape;
import com.oracle.truffle.object.basic.DefaultLayoutFactory;

public class DynamicObjectFactoryTest {

    final Layout layout = new DefaultLayoutFactory().createLayout(Layout.newLayout());
    final Shape rootShape = layout.createShape(new ObjectType());

    @Test
    public void testFactory() {
        Shape shape = rootShape.defineProperty("x", 1, 0).defineProperty("y", 2, 0);
        DynamicObjectFactory factory = shape.createFactory();

        try {
            factory.newInstance();
            Assert.fail();
        } catch (AssertionError e) {
            Assert.assertEquals("0 arguments given but the factory takes 2: x, y", e.getMessage());
        }

        try {
            factory.newInstance("only one argument");
            Assert.fail();
        } catch (AssertionError e) {
            Assert.assertEquals("1 arguments given but the factory takes 2: x, y", e.getMessage());
        }

        DynamicObject object = factory.newInstance(3, 4);
        Assert.assertEquals(3, object.get("x"));
        Assert.assertEquals(4, object.get("y"));

        try {
            factory.newInstance(1, 2, 3);
            Assert.fail();
        } catch (AssertionError e) {
            Assert.assertEquals("3 arguments given but the factory takes 2: x, y", e.getMessage());
        }
    }

}