net.transmutator4j.mutations.TestBooleanMutation.java Source code

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Here is the source code for net.transmutator4j.mutations.TestBooleanMutation.java

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/*******************************************************************************
 * Copyright (c) 2010 - 2013 Danny Katzel.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the GNU Public License v3.0
 * which accompanies this distribution, and is available at
 * http://www.gnu.org/licenses/gpl.html
 * 
 * Contributors:
 *     Danny Katzel - initial API and implementation
 ******************************************************************************/
package net.transmutator4j.mutations;

import org.junit.Test;
import org.objectweb.asm.Opcodes;
import static org.junit.Assert.*;

public class TestBooleanMutation {

    @Test
    public void isBooleanOpcode() {
        assertTrue(BooleanMutation.isMutatable(Opcodes.ICONST_0));
        assertTrue(BooleanMutation.isMutatable(Opcodes.ICONST_1));
    }

    @Test
    public void mutateBooleanFalse() {
        BooleanMutation mutatedFalse = BooleanMutation.getMutationFor(Opcodes.ICONST_0);
        assertEquals(Opcodes.ICONST_0, mutatedFalse.getOriginalOpCode());
        assertEquals(Opcodes.ICONST_1, mutatedFalse.getMutatedOpCode());
        assertEquals("changed constant 0 (or false) to 1 (or true)", mutatedFalse.description());
    }

    @Test
    public void mutateBooleanTrue() {
        BooleanMutation mutatedFalse = BooleanMutation.getMutationFor(Opcodes.ICONST_1);
        assertEquals(Opcodes.ICONST_1, mutatedFalse.getOriginalOpCode());
        assertEquals(Opcodes.ICONST_0, mutatedFalse.getMutatedOpCode());
        assertEquals("changed constant 1 (or true) to 0 (or false)", mutatedFalse.description());
    }

    @Test(expected = IllegalArgumentException.class)
    public void getMutationForInvalidOpcodeShouldThrowException() {
        BooleanMutation.getMutationFor(-1);
    }
}