/*
* Copyright 2012-2017 the original author or authors.
*
* 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 org.springframework.boot.devtools.restart;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.net.URL;
import java.net.URLClassLoader;
import java.util.jar.Attributes;
import java.util.jar.JarOutputStream;
import java.util.jar.Manifest;
import java.util.zip.ZipOutputStream;
import org.junit.Rule;
import org.junit.Test;
import org.junit.rules.TemporaryFolder;
import org.springframework.util.StringUtils;
import static org.assertj.core.api.Assertions.assertThat;
/**
* Tests for {@link ChangeableUrls}.
*
* @author Phillip Webb
* @author Andy Wilkinson
*/
public class ChangeableUrlsTests {
@Rule
public TemporaryFolder temporaryFolder = new TemporaryFolder();
@Test
public void folderUrl() throws Exception {
URL url = makeUrl("myproject");
assertThat(ChangeableUrls.fromUrls(url).size()).isEqualTo(1);
}
@Test
public void fileUrl() throws Exception {
URL url = this.temporaryFolder.newFile().toURI().toURL();
assertThat(ChangeableUrls.fromUrls(url).size()).isEqualTo(0);
}
@Test
public void httpUrl() throws Exception {
URL url = new URL("http://spring.io");
assertThat(ChangeableUrls.fromUrls(url).size()).isEqualTo(0);
}
@Test
public void skipsUrls() throws Exception {
ChangeableUrls urls = ChangeableUrls.fromUrls(makeUrl("spring-boot"),
makeUrl("spring-boot-autoconfigure"), makeUrl("spring-boot-actuator"),
makeUrl("spring-boot-starter"),
makeUrl("spring-boot-starter-some-thing"));
assertThat(urls.size()).isEqualTo(0);
}
@Test
public void urlsFromJarClassPathAreConsidered() throws Exception {
File relative = this.temporaryFolder.newFolder();
File jarWithClassPath = makeJarFileWithUrlsInManifestClassPath(
"project-core/target/classes/", "project-web/target/classes/",
"does-not-exist/target/classes", relative.getName() + "/");
new File(jarWithClassPath.getParentFile(), "project-core/target/classes")
.mkdirs();
new File(jarWithClassPath.getParentFile(), "project-web/target/classes").mkdirs();
ChangeableUrls urls = ChangeableUrls
.fromUrlClassLoader(new URLClassLoader(new URL[] {
jarWithClassPath.toURI().toURL(), makeJarFileWithNoManifest() }));
assertThat(urls.toList()).containsExactly(
new URL(jarWithClassPath.toURI().toURL(), "project-core/target/classes/"),
new URL(jarWithClassPath.toURI().toURL(), "project-web/target/classes/"),
relative.toURI().toURL());
}
private URL makeUrl(String name) throws IOException {
File file = this.temporaryFolder.newFolder();
file = new File(file, name);
file = new File(file, "target");
file = new File(file, "classes");
file.mkdirs();
return file.toURI().toURL();
}
private File makeJarFileWithUrlsInManifestClassPath(Object... urls) throws Exception {
File classpathJar = this.temporaryFolder.newFile("classpath.jar");
Manifest manifest = new Manifest();
manifest.getMainAttributes().putValue(Attributes.Name.MANIFEST_VERSION.toString(),
"1.0");
manifest.getMainAttributes().putValue(Attributes.Name.CLASS_PATH.toString(),
StringUtils.arrayToDelimitedString(urls, " "));
new JarOutputStream(new FileOutputStream(classpathJar), manifest).close();
return classpathJar;
}
private URL makeJarFileWithNoManifest() throws Exception {
File classpathJar = this.temporaryFolder.newFile("no-manifest.jar");
new ZipOutputStream(new FileOutputStream(classpathJar)).close();
return classpathJar.toURI().toURL();
}
}