AvoidConditionInversionCheckTest.java

////////////////////////////////////////////////////////////////////////////////
// checkstyle: Checks Java source code for adherence to a set of rules.
// Copyright (C) 2001-2017 the original author or authors.
//
// This library is free software; you can redistribute it and/or
// modify it under the terms of the GNU Lesser General Public
// License as published by the Free Software Foundation; either
// version 2.1 of the License, or (at your option) any later version.
//
// This library 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
// Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public
// License along with this library; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
////////////////////////////////////////////////////////////////////////////////

package com.github.sevntu.checkstyle.checks.design;

import static com.github.sevntu.checkstyle.checks.design.AvoidConditionInversionCheck.MSG_KEY;

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

import com.github.sevntu.checkstyle.BaseCheckTestSupport;
import com.puppycrawl.tools.checkstyle.DefaultConfiguration;
import com.puppycrawl.tools.checkstyle.api.DetailAST;
import com.puppycrawl.tools.checkstyle.api.TokenTypes;

/**
 *
 * @author <a href="mailto:nesterenko-aleksey@list.ru">Aleksey Nesterenko</a>
 *
 */
public class AvoidConditionInversionCheckTest extends BaseCheckTestSupport {
    private final DefaultConfiguration checkConfig =
            createCheckConfig(AvoidConditionInversionCheck.class);

    @Test
    public void defaultTest() throws Exception {

        final String[] expected = {
            "7: " + getCheckMessage(MSG_KEY),
            "11: " + getCheckMessage(MSG_KEY),
            "15: " + getCheckMessage(MSG_KEY),
            "19: " + getCheckMessage(MSG_KEY),
            "23: " + getCheckMessage(MSG_KEY),
            "29: " + getCheckMessage(MSG_KEY),
            "31: " + getCheckMessage(MSG_KEY),
            "39: " + getCheckMessage(MSG_KEY),
            "102: " + getCheckMessage(MSG_KEY),
            "107: " + getCheckMessage(MSG_KEY),
        };

        verify(checkConfig, getPath("InputAvoidConditionInversionCheck.java"),
                expected);
    }

    @Test
    public void avoidOnlyRelationalOperandsInCondition() throws Exception {

        final boolean applyOnlyToMathematicalOperands = true;
        checkConfig.addAttribute("applyOnlyToRelationalOperands",
                Boolean.toString(applyOnlyToMathematicalOperands));

        final String[] expected = {
            "7: " + getCheckMessage(MSG_KEY),
            "11: " + getCheckMessage(MSG_KEY),
            "15: " + getCheckMessage(MSG_KEY),
            "19: " + getCheckMessage(MSG_KEY),
            "23: " + getCheckMessage(MSG_KEY),
            "29: " + getCheckMessage(MSG_KEY),
            "31: " + getCheckMessage(MSG_KEY),
        };

        verify(checkConfig, getPath("InputAvoidConditionInversionCheck.java"),
                expected);
    }

    @Test
    public void testUnsupportedNode() {
        final DetailAST sync = new DetailAST();
        sync.setType(TokenTypes.LITERAL_SYNCHRONIZED);

        try {
            final AvoidConditionInversionCheck check = new AvoidConditionInversionCheck();
            check.visitToken(sync);

            fail();
        }
        catch (IllegalArgumentException ex) {
            Assert.assertEquals("Found unsupported token: LITERAL_SYNCHRONIZED", ex.getMessage());
        }
    }

}