core-it-suite/src/test/java/org/apache/maven/it/MavenITmng6255FixConcatLines.java

/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */
package org.apache.maven.it;

import java.io.File;
import java.util.Properties;

import com.google.common.base.Charsets;
import com.google.common.base.Joiner;
import com.google.common.io.Files;
import org.apache.maven.shared.verifier.Verifier;
import org.apache.maven.shared.verifier.util.ResourceExtractor;
import org.junit.jupiter.api.Test;

/**
 * This is a test set for <a href="https://issues.apache.org/jira/browse/MNG-6255">MNG-6255</a>:
 * Check that the <code>.mvn/jvm.config</code> file contents are concatenated properly, no matter
 * what line endings are used.
 */
public class MavenITmng6255FixConcatLines extends AbstractMavenIntegrationTestCase {
    public MavenITmng6255FixConcatLines() {
        super("[3.5.3,)");
    }

    /**
     * Check that <code>CR</code> line endings work.
     * <p>
     * Currently disabled.
     *
     * @throws Exception in case of failure
     */
    public void disabledJvmConfigFileCR() throws Exception {
        runWithLineEndings("\r");
    }

    /**
     * Check that <code>LF</code> line endings work.
     *
     * @throws Exception in case of failure
     */
    @Test
    public void testJvmConfigFileLF() throws Exception {
        runWithLineEndings("\n");
    }

    /**
     * Check that <code>CRLF</code> line endings work.
     *
     * @throws Exception in case of failure
     */
    @Test
    public void testJvmConfigFileCRLF() throws Exception {
        runWithLineEndings("\r\n");
    }

    protected void runWithLineEndings(String lineEndings) throws Exception {
        File baseDir = ResourceExtractor.simpleExtractResources(getClass(), "/mng-6255");
        File mvnDir = new File(baseDir, ".mvn");

        File jvmConfig = new File(mvnDir, "jvm.config");
        createJvmConfigFile(jvmConfig, lineEndings, "-Djvm.config=ok", "-Xms256m", "-Xmx512m");

        Verifier verifier = newVerifier(baseDir.getAbsolutePath());
        verifier.addCliArgument(
                "-Dexpression.outputFile=" + new File(baseDir, "expression.properties").getAbsolutePath());
        verifier.setForkJvm(true);
        verifier.addCliArgument("validate");
        verifier.execute();
        verifier.verifyErrorFreeLog();

        Properties props = verifier.loadProperties("expression.properties");
        assertEquals("ok", props.getProperty("project.properties.jvm-config"));
    }

    protected void createJvmConfigFile(File jvmConfig, String lineEndings, String... lines) throws Exception {
        String content = Joiner.on(lineEndings).join(lines);
        Files.write(content, jvmConfig, Charsets.UTF_8);
    }
}