public MixedTable createMixedFormatSource(Schema schema, Consumer<TableBuilder> consumer) {
    TestIdentifier identifier =
        TestIdentifier.ofDataLake(currentCatalog, catalog().name(), database(), sourceTable, true);
    TableBuilder builder = catalog().newTableBuilder(identifier.toAmoroIdentifier(), schema);
    consumer.accept(builder);
    MixedTable source = builder.create();
    this.source = identifier;
    return source;
  }
Test base for all mixed-format tests.
amoro-format-mixed/amoro-mixed-spark/amoro-mixed-spark-3-common/src/test/java/org/apache/amoro/spark/test/MixedTableTestBase.java