me.jaimegarza.syntax.test.java.TestLalr.java Source code

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Here is the source code for me.jaimegarza.syntax.test.java.TestLalr.java

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/*
 Syntax is distributed under the Revised, or 3-clause BSD license
 ===============================================================================
 Copyright (c) 1985, 2012, 2016, Jaime Garza
 All rights reserved.
     
 Redistribution and use in source and binary forms, with or without
 modification, are permitted provided that the following conditions are met:
 * Redistributions of source code must retain the above copyright
   notice, this list of conditions and the following disclaimer.
 * Redistributions in binary form must reproduce the above copyright
   notice, this list of conditions and the following disclaimer in the
   documentation and/or other materials provided with the distribution.
 * Neither the name of the copyright holder nor the
   names of its contributors may be used to endorse or promote products
   derived from this software without specific prior written permission.
     
 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
 ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE FOR ANY
 DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
 ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 ===============================================================================
*/
package me.jaimegarza.syntax.test.java;

import java.io.File;
import java.io.IOException;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
import java.net.MalformedURLException;
import java.net.URL;
import java.net.URLClassLoader;

import org.apache.commons.io.FilenameUtils;
import org.apache.commons.jci.compilers.CompilationResult;
import org.apache.commons.jci.problems.CompilationProblem;
import org.testng.Assert;
import org.testng.annotations.AfterTest;
import org.testng.annotations.BeforeTest;
import org.testng.annotations.Test;

import me.jaimegarza.syntax.exception.AnalysisException;
import me.jaimegarza.syntax.exception.OutputException;
import me.jaimegarza.syntax.exception.ParsingException;
import me.jaimegarza.syntax.language.Language;
import me.jaimegarza.syntax.test.AbstractGenerationBase;

public class TestLalr extends AbstractGenerationBase {

    static final String expandedArgs[] = {
            // "-v",
            "--algorithm", "l", "--language", "java", "--packing", "tabular",
            //"-v",
            //"-g",
            "classpath:lalr.sy", "${file.language}" };

    @BeforeTest
    public void setUp() throws IOException {
        super.setUp(Language.java, "TestParser");
    }

    @Override
    @AfterTest
    public void tearDown() {
        super.tearDown();
    }

    @Test
    public void test01WithExecute() throws ParsingException, AnalysisException, OutputException,
            MalformedURLException, ClassNotFoundException, InstantiationException, IllegalAccessException,
            NoSuchMethodException, SecurityException, IllegalArgumentException, InvocationTargetException {
        generateLanguageFile(expandedArgs);

        File source = new File(tmpLanguageFile);
        File sourceDir = source.getParentFile();
        CompilationResult result = compileJavaFile(source, sourceDir);
        if (result.getErrors().length > 0) {
            for (CompilationProblem cr : result.getErrors()) {
                System.err.println(cr);
            }
        }
        Assert.assertEquals(result.getErrors().length, 0, "Syntax errors found trying to execute");

        URL urls[] = new URL[1];
        urls[0] = sourceDir.toURI().toURL();
        URLClassLoader classLoader = URLClassLoader.newInstance(urls, this.getClass().getClassLoader());
        String className = FilenameUtils.getBaseName(tmpLanguageFile);
        Class<?> clazz = classLoader.loadClass(className);
        Object parser = clazz.newInstance();
        Method setVerbose = parser.getClass().getMethod("setVerbose", boolean.class);
        Method parse = parser.getClass().getMethod("parse");
        Method getExpr = parser.getClass().getMethod("getExpr");
        setVerbose.invoke(parser, true);
        Object o = parse.invoke(parser);
        Assert.assertTrue(o instanceof Integer);
        int rc = (Integer) o;
        Assert.assertEquals(rc, 1, "Parse did not succeed");
        o = getExpr.invoke(parser);
        Assert.assertTrue(o instanceof String);
        String s = (String) o;
        Assert.assertEquals(s, "(abc)d", "string does not match");
    }

}