从maven2迁移到buildr时，为什么我的测试无法运行？

Question

I have a straightforward maven2 java project (JMS relaying system). After we released the first version, we found that we spent more time configuring maven than actually coding.

For the next release we wanted to clean up the build process and someone suggested migrating to builder. So I was tasked with doing just that.

I setup buildr (1.3.4) according to the documentation on their website. And then from the root of the project I typed the buildr command and then informed buildr to create the build file based upon my pom.xml. That processed fine and compiled all the code. All was gravy until buildr started running the tests. Here is the ouput:

Test framework error: taskdef class org.apache.tools.ant.taskdefs.optional.junit.JUnitTask cannot be found

Obviously the class specified isn't in my classpath. However, the buildr documentation says that all the required items needed for basic testing are included. Their documentation doesn't say that they need any specific libraries for ant or a version of ant. Although I do have ant 1.7.0 installed (not included in my classpath however).

Has anyone seen this before?

---

Update

I located the infamous ant-optional jar on the maven repository. Including that in my test.with options did not resolve the issue.

Running the buildr command with --trace gives this extra information...

Tests failed!
/pathtoruby/buildr-1.3.4/lib/buildr/core/test.rb:455:in `run_tests'
/pathtoruby/buildr-1.3.4/lib/buildr/core/test.rb:199:in `initialize'

Answer 1

Found the issue... Apparently there is an ant-junit.jar that is needed but for whatever reason in my local repository it was owned by root and not my local user account (OSX system). So it wasn't accessible to buildr. I deleted the items from my local repository and reran buildr (it downloaded the needed items).

---

Update

Also this caused a few other issues. It seems that a few other items in my local repository had strange permissions. I ended up just archiving my repository and letting maven reconstruct it. This resolved all my issues. I now have a nice build file that is 25 lines of code compared to my previous pom.xml file that was over 100 lines.

Answer 2

You get that error because JUnitTask isn't on the classpath. I'm not very familiar with Buildr so can't say if it is required for you to specify the JUnit jars or not, but if Buildr uses the system classpath, try adding JUnit to it and see what happens.

Once you've confirmed your builds will run with JUnit hacked in to the classpath, you can then try varying your configuration until it runs as you expected, or leave it as is.

Can you post the reference to the relevant part of the documentation? I didn't see anything (in my very brief reading of the site) that says required items are included.

Is it possible that you've not downloaded all the gems? If you run "gem update --system" to update Ruby, then "gem update buildr" you can ensure that the required dependencies have all been installed.