How to create an Arquillian test that uses XStream?

How create an Arquillian test that uses XStream?

How should the deployment method look like?

First thing I tried was adding my classes and the XStream package.

ShrinkWrap.create(WebArchive.class, "myTest.war")
    .addClass(...) // my classes
    .addClass(...) // my classes
    .addPackages(true, "com.thoughtworks.xstream")
    .addAsResource("META-INF/persistence.xml", "META-INF/persistence.xml")
    .addAsWebInfResource(EmptyAsset.INSTANCE, "beans.xml");

Got error complaining about missing XStream dependencies, so I added:

    .addPackages(true, "org.dom4j")
    .addPackages(true, "org.xmlpull")

After that, I'm still getting the following error:

com.thoughtworks.xstream.io.StreamException: Cannot create XmlPullParser at com.thoughtworks.xstream.io.xml.AbstractXppDriver.createReader(AbstractXppDriver.java:56) at com.thoughtworks.xstream.XStream.fromXML(XStream.java:1040) at com.thoughtworks.xstream.XStream.fromXML(XStream.java:1031) (...)

What else can I do?

Solution

Answering your question in the comment above: ShrinkWrap resolvers can be the way to go.

WebArchive archieve = ShrinkWrap
            .create(WebArchive.class, "myTest.war")
            .addPackages(true, "your.company.project")
            // other resources ...

File[] xstreamLib = Maven.resolver().resolve("com.thoughtworks.xstream:xstream:1.4.7")
            .withTransitivity().asFile();
archieve.addAsLibraries(xstreamLib);

Other sample usage here.

Why is this so good? Because of two reasons:

every library you're using can have its own transitive dependencies - so you would have to add it separately (in your case these are: dom4j and xmlpull) - but there can be a lot more dependencies.
repackaging libraries is extremely error prone, as you've noticed it already.

ShrinkWrap resolvers are really useful piece of software.