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Using EclipseResourceFileSystemAccess2 in test [message #1801610]

Wed, 23 January 2019 12:16

Konrad Jünemann

Messages: 40
Registered: December 2018

Member

Hi,

in order to set a specific encoding for files generated by my language, I created my own EclipseResourceFileSystemAccess2 subclass and created a binding as shown below.

public class MyFileSystemAccess2 extends EclipseResourceFileSystemAccess2 {
	
	@Override
	protected String getEncoding(IFile file) throws CoreException {
		
		if (file.getName().endsWith(".csv")) {
			IContainer parent = file.getParent();
			if (parent != null && "export".equals(parent.getName()))
				return "ISO-8859-1";
		}
		
		return super.getEncoding(file);
	}
}

class LogDslRuntimeModule extends AbstractLogDslRuntimeModule {
...
	def Class<? extends EclipseResourceFileSystemAccess2> bindEclipseResourceFileSystemAccess2() {
		return MyFileSystemAccess2
	}
}

This works fine. However, my UnitTests now don't start anymore, as Guice is unable to inject a dependency used by EclipseResourceFileSystemAccess2.

...
	at de.myProject.mydsl.tests.MyDslInjectorProvider$1.createInjector(MyDslInjectorProvider.java:39)
	at de.myProject.mydsl.MyDslStandaloneSetupGenerated.createInjectorAndDoEMFRegistration(MyDslStandaloneSetupGenerated.java:21)
	at de.myProject.mydsl.tests.MyDslInjectorProvider.internalCreateInjector(MyDslInjectorProvider.java:41)
	at de.myProject.mydsl.tests.MyDslInjectorProvider.getInjector(MyDslInjectorProvider.java:29)
	at de.myProject.mydsl.tests.MyDslInjectorProvider.setupRegistry(MyDslInjectorProvider.java:63)
...
Caused by: java.lang.ClassNotFoundException: org.eclipse.xtext.ui.generator.trace.TraceMarkers

I figure my Standalone / Test Injector Setup is incorrect, but I am at a loss about how to fix it.
1. Do I have to use a different IFileSystemAccess2 subtype in test?
2. If so, how would I create the binding?
3. If so, how do I prevent the other binding (bindEclipseResourceFileSystemAccess2) from being used in test?

Maybe I did something else wrong. Any advice would be greatly appreciated!

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