private static ApplicationBuilder createFromFiles(Collection<String> fileNames, DeployLogger logger) throws IOException, ParseException {
        return createFromFiles(fileNames, new MockFileRegistry(), logger, new TestProperties(), new RankProfileRegistry(), new QueryProfileRegistry());
    }
Convenience factory methods to create a SearchBuilder from multiple SD files. Only for testing.
config-model/src/main/java/com/yahoo/schema/ApplicationBuilder.java