NeverValidAssumptionTest.java

/*
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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.
 *
 * 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.api.test.utilities;

import static org.junit.Assert.assertFalse;
import static org.junit.Assert.fail;

import org.junit.Test;

import com.oracle.truffle.api.nodes.InvalidAssumptionException;
import com.oracle.truffle.api.utilities.NeverValidAssumption;

public class NeverValidAssumptionTest {

    @Test
    public void testCheck() {
        final NeverValidAssumption assumption = NeverValidAssumption.INSTANCE;

        try {
            assumption.check();
            fail();
        } catch (InvalidAssumptionException e) {
        } catch (Exception e) {
            fail();
        }
    }

    @Test
    public void testIsValid() {
        final NeverValidAssumption assumption = NeverValidAssumption.INSTANCE;
        assertFalse(assumption.isValid());
    }

    @Test
    public void testInvalidateDoesNothing() {
        final NeverValidAssumption assumption = NeverValidAssumption.INSTANCE;
        assumption.invalidate();
        assumption.invalidate();
        assumption.invalidate();
    }

}