@Override
    public FieldRelation getTestObject() {
        return new FieldRelation(new FieldInfo("f", StringFormatInfo.INSTANCE),
                new FieldInfo("f", StringFormatInfo.INSTANCE));
    }
Get test object

@return The test object
inlong-sort/sort-common/src/test/java/org/apache/inlong/sort/protocol/transformation/FieldRelationTest.java