我们试图从我们自己的内部Nexus存储库中使用org.robolectric：robolectric：3.0依赖.问题是Robolectric尝试从公共存储库(
as mentioned here)在运行时加载一些依赖项,并忽略build.gradle中的任何存储库覆盖.
由于我们无法从Intranet访问该公共位置,因此在尝试加载该依赖项后,我的测试会超时：
[WARNING] Unable to get resource
‘org.robolectric:android-all:jar:5.0.0_r2-robolectric-1’ from
repository sonatype (07001):
Error transferring file: Operation timed out
Robolectric configuration documentation的底部部分建议将其添加到Gradle配置中以覆盖URL：
android {
testOptions {
unitTests.all {
systemProperty 'robolectric.dependency.repo.url','https://local-mirror/repo'
systemProperty 'robolectric.dependency.repo.id','local'
}
}
}
不幸的是,我已经测试了,我从未看到系统属性被设置.我从我的自定义Robolectric跑步者(扩展RobolectricGradleTestRunner)中打印出来,并且系统属性保持设置为空.
System.out.println("robolectric.dependency.repo.url: " + System.getProperty("robolectric.dependency.repo.url"));
我也尝试过类似于this comment的东西(但在RobolectricGradleTestRunner中不存在该方法),我也尝试直接在我的自定义Robolectric运行器中设置系统属性,这似乎没有帮助.
@Config(constants = BuildConfig.class)
public class CustomrobolectricRunner extends RobolectricGradleTestRunner {
private static final String BUILD_OUTPUT = "build/intermediates";
public CustomrobolectricRunner(Class<?> testClass) throws InitializationError {
super(testClass);
System.setProperty("robolectric.dependency.repo.url","https://nexus.myinternaldomain.com/content");
System.setProperty("robolectric.dependency.repo.id","internal");
System.out.println("robolectric.dependency.repo.url: " + System.getProperty("robolectric.dependency.repo.url"));
}
Robolectric source code确实似乎确认存在这些系统属性.
解决方法
虽然不是直接使用属性的修复,但另一种让它工作的方法是在RobolectricTestRunner子类中重写getJarResolver()并将其指向工件主机：
public final class MyTestRunner extends RobolectricTestRunner {
public MyTestRunner(Class<?> testClass) throws InitializationError {
super(testClass);
}
@Override protected DependencyResolver getJarResolver() {
return new CustomDependencyResolver();
}
static final class CustomDependencyResolver implements DependencyResolver {
private final Project project = new Project();
@Override public URL[] getLocalArtifactUrls(DependencyJar... dependencies) {
DependenciesTask dependenciesTask = new DependenciesTask();
RemoteRepository repository = new RemoteRepository();
repository.setUrl("https://my-nexus.example.com/content/groups/public");
repository.setId("my-nexus");
dependenciesTask.addConfiguredRemoteRepository(repository);
dependenciesTask.setProject(project);
for (DependencyJar dependencyJar : dependencies) {
Dependency dependency = new Dependency();
dependency.setArtifactId(dependencyJar.getArtifactId());
dependency.setGroupId(dependencyJar.getGroupId());
dependency.setType(dependencyJar.getType());
dependency.setVersion(dependencyJar.getVersion());
if (dependencyJar.getClassifier() != null) {
dependency.setClassifier(dependencyJar.getClassifier());
}
dependenciesTask.addDependency(dependency);
}
dependenciesTask.execute();
@SuppressWarnings("unchecked")
Hashtable<String,String> artifacts = project.getProperties();
URL[] urls = new URL[dependencies.length];
for (int i = 0; i < urls.length; i++) {
try {
urls[i] = Util.url(artifacts.get(key(dependencies[i])));
} catch (MalformedURLException e) {
throw new RuntimeException(e);
}
}
return urls;
}
@Override public URL getLocalArtifactUrl(DependencyJar dependency) {
URL[] urls = getLocalArtifactUrls(dependency);
if (urls.length > 0) {
return urls[0];
}
return null;
}
private String key(DependencyJar dependency) {
String key =
dependency.getGroupId() + ":" + dependency.getArtifactId() + ":" + dependency.getType();
if (dependency.getClassifier() != null) {
key += ":" + dependency.getClassifier();
}
return key;
}
}
}
应该注意的是,这依赖于两个内部类型的Robolectric,因此在升级版本时应该小心.