minij.MiniJCompilerTest.java Source code

Introduction

Here is the source code for minij.MiniJCompilerTest.java

Source

/*
 * MiniJCompiler: Compiler for a subset of the Java(R) language
 *
 * (C) Copyright 2014-2015 Tibor Goldschwendt <goldschwendt@cip.ifi.lmu.de>,
 * Michael Seifert <mseifert@error-reports.org>
 *
 * This file is part of MiniJCompiler.
 *
 * MiniJCompiler 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.
 *
 * MiniJCompiler 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 MiniJCompiler.  If not, see <http://www.gnu.org/licenses/>.
 */
package minij;

import static org.junit.Assert.fail;

import java.io.File;
import java.io.IOException;
import java.nio.file.Files;
import java.util.Collection;

import minij.Configuration;
import minij.MiniJCompiler;
import minij.backend.i386.I386MachineSpecifics;

import org.apache.commons.io.FilenameUtils;
import org.junit.Before;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.junit.runners.Parameterized;

@RunWith(Parameterized.class)
public class MiniJCompilerTest {

    @Parameterized.Parameters
    public static Collection<Object[]> files() throws IOException {
        return TestFiles.getFiles();
    }

    private File file;
    private Class<? extends Exception> exceptionClass;
    private MiniJCompiler compiler;

    public MiniJCompilerTest(File file, Class<? extends Exception> exceptionClass) {
        this.file = file;
        this.exceptionClass = exceptionClass;
    }

    @Before
    public void setUp() {
        compiler = new MiniJCompiler(new I386MachineSpecifics());
    }

    @Test
    public void testCompileExamples() throws IOException {

        System.out.println("Testing compiler input from file \"" + file.toString() + "\"");

        Configuration config = new Configuration(new String[] { file.toString() });
        config.outputFile = "out" + File.separator + config.outputFile;

        try {
            compiler.compile(config);
            String output = compiler.runExecutable(config, 15);
            if (exceptionClass != null) {
                fail("The example " + file.toString() + " should have failed with exception " + exceptionClass
                        + ", but was accepted by the compiler.");
            }

            byte[] content = Files.readAllBytes(new File("src/test/resources/minij-examples-outputs/working/"
                    + FilenameUtils.getBaseName(file.toString()) + ".txt").toPath());
            String expectedOutput = new String(content);

            if (!output.equals(expectedOutput)) {
                fail("The example " + file.toString() + " should have printed '" + expectedOutput
                        + "' but printed '" + output + "'");
            }
        } catch (Exception e) {

            if (exceptionClass == null) {
                e.printStackTrace();
                fail("The example " + file.toString() + " should have been accepted by the compiler but failed: "
                        + e.getMessage());
            }

            if (!exceptionClass.isInstance(e)) {
                fail("The example " + file.toString() + " should have failed with exception " + exceptionClass
                        + " but with failed with exception " + e.getClass() + ", " + e.getMessage());
            }
        }
    }
}