private void setupTargetVersion() {
        final String versionUnderTest = this.getClass()
                .getSimpleName()
                .replaceAll("^TestV", "")
                .replaceAll("__.*$", "");

        targetVersion = MigrationVersion.fromVersion(versionUnderTest);
        LOGGER.debug("Using target version number {}", targetVersion);
    }
@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