BondTest.java

/*
 * MX Cheminformatics Tools for Java
 * 
 * Copyright (c) 2007, 2008 Metamolecular, LLC
 * 
 * http://metamolecular.com
 *
 * 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 com.chemhack.jsMolEditor.client.test;

import com.chemhack.jsMolEditor.client.model.Molecule;
import com.chemhack.jsMolEditor.client.model.Bond;
import com.chemhack.jsMolEditor.client.model.DefaultMolecule;
import com.chemhack.jsMolEditor.client.model.Atom;
import com.google.gwt.junit.client.GWTTestCase;

/**
 * @author Richard L. Apodaca
 *         Duan Lian
 */
public class BondTest extends GWTTestCase {

    public String getModuleName() {
        return "com.chemhack.jsMolEditor.Editor";
    }

    public void testItShouldChangeItsPropertiesWhenBondOrderIsSet() {
        Molecule molecule = new DefaultMolecule();
        Atom c1 = molecule.addAtom("C");
        Atom c2 = molecule.addAtom("C");
        Bond bond = molecule.connect(c1, c2, 1);

        assertEquals(1, bond.getType());
        assertEquals(1, bond.getSource().getValence());

        bond.setType(2);

        assertEquals(2, bond.getType());
        assertEquals(2, bond.getSource().getValence());
    }

    public void testItShouldChangeItsPropertiesWhenBondStereoIsSet() {
        Molecule molecule = new DefaultMolecule();
        Atom c1 = molecule.addAtom("C");
        Atom c2 = molecule.addAtom("C");
        Bond bond = molecule.connect(c1, c2, 1);

        assertEquals(0, bond.getStereo());

        bond.setStereo(1);

        assertEquals(1, bond.getStereo());
    }

    public void testItShouldChangeItsPropertiesWhenReversed() {
        Molecule molecule = new DefaultMolecule();
        Atom c1 = molecule.addAtom("C");
        Atom c2 = molecule.addAtom("C");
        Bond bond = molecule.connect(c1, c2, 1);

        assertEquals(c1, bond.getSource());

        bond.reverse();

        assertEquals(c2, bond.getSource());
    }

    public void testItShouldThrowWhenSettingAnInvalidType() {
        Molecule molecule = new DefaultMolecule();
        Atom c1 = molecule.addAtom("C");
        Atom c2 = molecule.addAtom("C");
        Bond bond = molecule.connect(c1, c2, 1);

        try {
            bond.setType(0);
            fail();
        }
        catch (IllegalStateException ignore) {
        }
    }

    public void testItShouldThrowWhenSettingAnInvalidStereo() {
        Molecule molecule = new DefaultMolecule();
        Atom c1 = molecule.addAtom("C");
        Atom c2 = molecule.addAtom("C");
        Bond bond = molecule.connect(c1, c2, 1);
        int[] nonos = new int[]
                {
                        -1, 2, 5, 7
                };

        for (int i = 0; i < nonos.length; i++) {
            try {
                bond.setStereo(nonos[i]);
                fail();
            }
            catch (IllegalStateException ignore) {
            }
        }
    }
}