@RunWith(XtextRunner)
@InjectWith(MyDslInjectorProvider)
class MyDslParsingTest {
	@Inject
	Provider<ResourceSet> rsp
	
	@Test
	def void loadModel() {
		val rs = rsp.get
		// better use a file uri, but your question lacks context
		val r = rs.getResource(URI.createURI("classpath:/org/xtext/example/other/other.mydsl"), true)
		r.load(null)
		val model = r.contents.head as Model
		for (g : model.greetings) {
			println(g.name)
		}
	}
}

@RunWith(XtextRunner)
@InjectWith(MyDslInjectorProvider)
class MyDslParsingTest {
	@Inject
	Provider<ResourceSet> rsp
	
	@Inject
	GeneratorDelegate generatorDelegate
	
	@Test
	def void loadModel() {
		val rs = rsp.get
		// better use a file uri, but your question lacks context
		val r = rs.getResource(URI.createURI("classpath:/org/xtext/example/other/other.mydsl"), true)
		r.load(null)
		val model = r.contents.head as Model
		for (g : model.greetings) {
			println(g.name)
		}
		val GeneratorContext context = new GeneratorContext();
		context.setCancelIndicator(CancelIndicator.NullImpl);
		val fsa = new InMemoryFileSystemAccess
		generatorDelegate.doGenerate(r,fsa,context)
		println(fsa.allFiles)
	}
}