factory.addSource(url1);
factory.addSource(url2);
factory.addSource(url3);
// Parse files.
factory.readDefinitions();
TilesRequestContext emptyContext = new MockOnlyLocaleTilesContext(null);
TilesRequestContext usContext = new MockOnlyLocaleTilesContext(Locale.US);
TilesRequestContext frenchContext = new MockOnlyLocaleTilesContext(Locale.FRENCH);
TilesRequestContext chinaContext = new MockOnlyLocaleTilesContext(Locale.CHINA);