@Test
    public void testMigrateNoUsers() throws Exception {
        doTest( "export-files/export-from-1.2.2.Final-nousers.json",
                "export-files/export-from-1.2.2.Final-nousers_expected.json", 
                "1.2.3.Final");
    }
Test method for {@link io.apiman.manager.api.migrator.DataMigrator#migrate(java.io.File, java.io.File)}.
manager/api/migrator/src/test/java/io/apiman/manager/api/migrator/DataMigratorTest.java