com.redhat.red.offliner.ftest.SinglePOMRepoDownloadFTest.java Source code

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Here is the source code for com.redhat.red.offliner.ftest.SinglePOMRepoDownloadFTest.java

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/**
 * Copyright (C) 2015 Red Hat, Inc. (jcasey@redhat.com)
 *
 * Licensed 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 com.redhat.red.offliner.ftest;

import com.redhat.red.offliner.Main;
import com.redhat.red.offliner.Options;
import com.redhat.red.offliner.ftest.fixture.TestRepositoryServer;
import org.apache.commons.io.FileUtils;
import org.apache.maven.model.Dependency;
import org.apache.maven.model.Model;
import org.apache.maven.model.Repository;
import org.junit.Test;

import java.io.File;
import java.util.Collections;

import static org.apache.commons.codec.digest.DigestUtils.md5Hex;
import static org.apache.commons.codec.digest.DigestUtils.sha1Hex;
import static org.hamcrest.core.IsEqual.equalTo;
import static org.junit.Assert.assertThat;

/**
 * Create a one-dependency Maven POM containing one repository to test that the artifact can be downloaded from that
 * repository.
 *
 * Created by dcoleman on 02/07/2016.
 */
public class SinglePOMRepoDownloadFTest extends AbstractOfflinerFunctionalTest {
    /**
     * In general, we should only have one test method per functional test. This allows for the best parallelism when we
     * execute the tests, especially if the setup takes some time.
     *
     * @throws Exception In case anything (anything at all) goes wrong!
     */
    @Test
    public void run() throws Exception {
        // We only need one repo server.
        TestRepositoryServer server = newRepositoryServer();

        // Generate some test content
        byte[] content = contentGenerator.newBinaryContent(1024);

        Dependency dep = contentGenerator.newDependency();
        Model pom = contentGenerator.newPom();
        pom.addDependency(dep);

        // Add a repository to the pom
        Repository repo = contentGenerator.newRepository("Test Repo", server.getBaseUri());
        pom.addRepository(repo);

        String path = contentGenerator.pathOf(dep);

        // Register the generated content by writing it to the path within the repo server's dir structure.
        // This way when the path is requested it can be downloaded instead of returning a 404.
        server.registerContent(path, content);
        server.registerContent(path + Main.SHA_SUFFIX, sha1Hex(content));
        server.registerContent(path + Main.MD5_SUFFIX, md5Hex(content));

        // All deps imply an accompanying POM file when using the POM artifact list reader, so we have to register one of these too.
        Model pomDep = contentGenerator.newPomFor(dep);
        String pomPath = contentGenerator.pathOf(pomDep);
        String md5Path = pomPath + Main.MD5_SUFFIX;
        String shaPath = pomPath + Main.SHA_SUFFIX;

        String pomStr = contentGenerator.pomToString(pomDep);

        server.registerContent(pomPath, pomStr);
        server.registerContent(md5Path, md5Hex(pomStr));
        server.registerContent(shaPath, sha1Hex(pomStr));

        // Write the plaintext file we'll use as input.
        File pomFile = temporaryFolder.newFile(getClass().getSimpleName() + ".pom");

        FileUtils.write(pomFile, contentGenerator.pomToString(pom));

        Options opts = new Options();

        // Capture the downloads here so we can verify the content.
        File downloads = temporaryFolder.newFolder();

        opts.setDownloads(downloads);
        opts.setLocations(Collections.singletonList(pomFile.getAbsolutePath()));

        // run `new Main(opts).run()` and return the Main instance so we can query it for errors, etc.
        Main finishedMain = run(opts);

        assertThat(
                "Wrong number of downloads logged. Should have been 6 (declared jar + its corresponding POM + 2 checksums each).",
                finishedMain.getDownloaded(), equalTo(6));
        assertThat("Errors should be empty!", finishedMain.getErrors().isEmpty(), equalTo(true));

        File downloaded = new File(downloads, path);
        assertThat("File: " + path + " doesn't seem to be downloaded!", downloaded.exists(), equalTo(true));
        assertThat("Downloaded File: " + path + " contains wrong content!",
                FileUtils.readFileToByteArray(downloaded), equalTo(content));
    }
}