public T_CONN_PROV getDataSource() {
        return dataSource;
    }
@return The location of the migration containing the test data.
See {@link org.flywaydb.core.api.configuration.FluentConfiguration#locations(String...)}
stroom-test-common/src/main/java/stroom/test/common/util/db/AbstractSingleFlywayMigrationTest.java