JREDirectoryNameAdvisorTest.java

/**
 * Copyright (c) 2010, 2013 Darmstadt University of Technology.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 *     Andreas Sewe - initial API and implementation
 *     Olav Lenz - made tests run on Windows
 */
package org.eclipse.recommenders.coordinates.jre;

import static org.eclipse.recommenders.testing.FolderUtils.dir;
import static org.hamcrest.CoreMatchers.*;
import static org.junit.Assert.assertThat;

import java.io.File;
import java.util.Collection;
import java.util.LinkedList;

import org.eclipse.recommenders.coordinates.Coordinates;
import org.eclipse.recommenders.coordinates.DependencyInfo;
import org.eclipse.recommenders.coordinates.DependencyType;
import org.eclipse.recommenders.coordinates.IProjectCoordinateAdvisor;
import org.eclipse.recommenders.coordinates.ProjectCoordinate;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.junit.runners.Parameterized;
import org.junit.runners.Parameterized.Parameters;

import com.google.common.base.Optional;
import com.google.common.collect.Lists;

@RunWith(Parameterized.class)
public class JREDirectoryNameAdvisorTest {

    private final DependencyInfo dependencyInfo;
    private final Optional<ProjectCoordinate> expectedCoordinate;

    public JREDirectoryNameAdvisorTest(File javaHome, String jreVersion) {
        dependencyInfo = new DependencyInfo(javaHome, DependencyType.JRE);
        expectedCoordinate = Coordinates.tryNewProjectCoordinate("jre", "jre", jreVersion);
    }

    @Parameters
    public static Collection<Object[]> scenarios() {
        LinkedList<Object[]> scenarios = Lists.newLinkedList();
        // Real-world scenarios
        scenarios.add(jre(dir("Library", "Java", "JavaVirtualMachines", "1.6.0_45-b06-451.jdk", "Contents", "Home"),
                "1.6.0"));
        scenarios.add(jre(dir("Library", "Java", "JavaVirtualMachines", "jdk-9.jdk", "Contents", "Home"),
                "1.9.0"));
        scenarios.add(jre(dir("Library", "Java", "JavaVirtualMachines", "jdk1.7.0_09.jdk", "Contents/Home"), "1.7.0"));
        scenarios.add(jre(dir("usr", "lib", "jvm", "java-1.7.0-openjdk-amd64", "jre"), "1.7.0"));
        scenarios.add(jre(dir("usr", "lib", "jvm", "java-1.5.0-gcj-4.6", "jre"), "1.5.0"));
        scenarios.add(jre(dir("usr", "lib", "jvm", "java-7-openjdk-amd64", "jre"), "1.7.0"));
        scenarios.add(jre(dir("System", "Library", "Frameworks", "JavaVM.framework", "CurrentJDK", "Home"), ""));

        // Artificial scenarios
        scenarios.add(jre(dir("1.6.0", "..", "1.7.0"), "1.7.0"));
        scenarios.add(jre(dir("1.6.0", "..", "current"), "1.6.0"));

        return scenarios;
    }

    private static Object[] jre(File javaHome, String jreVersion) {
        return new Object[] { javaHome, jreVersion };
    }

    @Test
    public void testAdvisor() {
        IProjectCoordinateAdvisor sut = new JREDirectoryNameAdvisor();

        Optional<ProjectCoordinate> coordinate = sut.suggest(dependencyInfo);

        assertThat(coordinate, is(equalTo(expectedCoordinate)));
    }
}