InitParams params = mock(InitParams.class);
AppResources resources = mock(AppResources.class);
AppPropertyCollector collector = mock(AppPropertyCollector.class);
VelocityInitializer init = new VelocityInitializer();
init.initialize(params, resources, collector);
verify(collector).addProperty(eq(VM.CONFIG_PROPERTY), any(VelocityEngine.class));
}