@Test
public void testFindPrefixesForExportedVariables_withInstanceVariablesOnly() {

	Instance instance = new Instance( "inst" ).component( new Component( "comp" ));
	instance.overriddenExports.put( "comp.ip", "" );
	instance.overriddenExports.put( "comp.split.property", "" );
	instance.overriddenExports.put( "comp.port", "8000" );
	instance.overriddenExports.put( "facet.desc", "some description" );
	Set<String> prefixes = VariableHelpers.findPrefixesForExportedVariables( instance );
	Assert.assertEquals( 2, prefixes.size());
	Assert.assertTrue( prefixes.contains( "comp" ));
	Assert.assertTrue( prefixes.contains( "facet" ));
}