Test simple parsing of operators.

/*

 * Copyright (C) 2013 Matthew Dawson <matthew@mjdsystems.ca>

 *

 * This program is free software: you can redistribute it and/or modify

 * it under the terms of the GNU General Public License as published by

 * the Free Software Foundation, either version 3 of the License, or

 * (at your option) any later version.

 *

 * This program 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 for more details.

 *

 * You should have received a copy of the GNU General Public License

 * along with this program.  If not, see <http://www.gnu.org/licenses/>.

 */

package ca.mcmaster.cas.matlab2smt;

import org.junit.Test;

import org.junit.runner.RunWith;

import org.junit.runners.Parameterized;

import org.junit.runners.Parameterized.Parameters;

import org.junit.runners.Parameterized.Parameter;

import java.util.Arrays;

import java.util.Collection;

import static org.hamcrest.CoreMatchers.*;

import static org.junit.Assert.*;

/** This test simply tests that each operator parses correctly.

 *

 * This is a simply parametrized test set that only deals with the various operators MatlabParser deals with.  It avoids

 * all the other details (it just uses literals for input).  It also avoids any dependency on generators.

 *

 * @author Matthew Dawson <matthew@mjdsystems.ca>

 */

@RunWith(Parameterized.class)

public class MatlabParserOperatorParseTest {

    @Parameters

    public static Collection<Object[]> data() {

        return Arrays.asList(new Object[][]{

                {"+", MatlabBinaryOperation.Addition, null},

                {"*", MatlabBinaryOperation.Multiplication, null},

                {">", MatlabBinaryOperation.GreaterThen, null},

                {"==", MatlabBinaryOperation.Equals, null},

                {"&&", MatlabBinaryOperation.BooleanAnd, null}

        });

    }

    @Parameter

    public String inputSymbol;

    @Parameter(value = 1)

    public MatlabBinaryOperation bop;

    @Parameter(value = 2)

    public MatlabUnaryOperation uop;

    @Test

    public void doTest() {

        if (bop != null) {

            // Binary op to test ...

            MatlabParser parser = new MatlabParser(null, "1" + inputSymbol + "2\n");

            MatlabExpressionBinaryOperation exp = (MatlabExpressionBinaryOperation)parser.getRootExpression();

            assertThat(exp.m_op, is(bop));

            assertThat(((MatlabLiteral)exp.m_lhs).m_value, is("1"));

            assertThat(((MatlabLiteral)exp.m_rhs).m_value, is("2"));

        } else {

            assertThat(false, is(true));

        }

    }

}