rdblue commented on code in PR #11831:
URL: https://github.com/apache/iceberg/pull/11831#discussion_r1942101398
##########
core/src/test/java/org/apache/iceberg/avro/TestBuildAvroProjection.java:
##########
@@ -401,4 +402,31 @@ public void projectMapWithLessFieldInValueSchema() {
.as("Unexpected value ID discovered on the projected map schema")
.isEqualTo(1);
}
+
+ @Test
+ public void projectVariantSchemaUnchanged() {
+ final Type icebergType = Types.VariantType.get();
+
+ final org.apache.avro.Schema expected =
+ SchemaBuilder.record("variant")
+ .prop(AvroSchemaUtil.FIELD_ID_PROP, "1")
+ .namespace("unit.test")
+ .fields()
+ .name("metadata")
+ .type()
+ .bytesType()
+ .noDefault()
+ .name("value")
+ .type()
+ .bytesType()
+ .noDefault()
+ .endRecord();
+
+ final BuildAvroProjection testSubject =
+ new BuildAvroProjection(icebergType, Collections.emptyMap());
+ final org.apache.avro.Schema actual = testSubject.record(expected,
List.of(), null);
+ assertThat(actual)
+ .as("Variant projection produced undesired variant schema")
+ .isEqualTo(expected);
Review Comment:
I don't think that this is going to exercise the path that we want to when
the visitor and visit method are updated. This should create a record schema
and validate that visiting a file schema gives the correct projection to
request, by name.
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