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[m2e-dev] example of tests for m2e plugin based on BuildContext

[Moving from m2e-users to m2e-dev as suggested there.]

I've been updating a code-generation plugin to use BuildContext (http://wiki.eclipse.org/M2E_compatible_maven_plugins) instead of having a separate m2e connector (http://wiki.eclipse.org/M2E_compatible_maven_plugins).

How do I write integration tests for this Maven plugin? Basically I want to be able to test things like:
* I modified a grammar file in Eclipse. Did the code generation run? (It should have.)
* I modified an unrelated Java file in Eclipse. Did the code generation run? (It shouldn't have.)

With the m2e connector approach, I had a Tycho project with a class that extended org.eclipse.m2e.tests.common.AbstractMavenProjectTestCase. But with the BuildContext approach, I'm no longer using Tycho, since I'm just building a regular Maven plugin. How do I test that my plugin integrates properly with m2e?

Steve

On Oct 16, 2012, at 2:23 PM, Matthew Piggott <mpiggott@xxxxxxxxxxxx> wrote:

> I haven't worked actively on the new stuff, but I think you should be able to model a separate maven module on a test bundle of a plugin using the connector approach.
> 
> It would probably be best to move the conversation to m2e-dev
> 
> On 16 October 2012 16:09, Steven Bethard <steven.bethard@xxxxxxxxxxxx> wrote:
> On Oct 16, 2012, at 2:05 PM, Matthew Piggott <mpiggott@xxxxxxxxxxxx> wrote:
>> The tests expect to be run inside an Eclipse instance.  For examples you could look at the tests in m2e source, or one of the connectors in m2e-extras ( https://github.com/sonatype/m2eclipse-extras/ ).
> 
> Yeah, the problem is that those are all based off of the m2e-connector approach (http://wiki.eclipse.org/M2E/Extension_Development), not the new BuildContext approach (http://wiki.eclipse.org/M2E_compatible_maven_plugins).
> 
> I already have a working m2e-connector approach based off the m2eclipse-extras examples. I was just hoping to migrate to the BuildContext approach because then there's only the Maven plugin to maintain, not both a Maven plugin and an Eclipse plugin.
> 
> Steve



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