rdblue commented on code in PR #4685:
URL: https://github.com/apache/iceberg/pull/4685#discussion_r871861840
##########
python/tests/test_schema.py:
##########
@@ -347,3 +351,80 @@ def test_schema_find_type(table_schema_simple):
== table_schema_simple.find_type("BAZ", case_sensitive=False)
== BooleanType()
)
+
+
+def test_build_position_accessors(table_schema_nested):
+ accessors = build_position_accessors(table_schema_nested)
+ assert accessors == {
+ 1: Accessor(position=0, inner=None),
+ 2: Accessor(position=1, inner=None),
+ 3: Accessor(position=2, inner=None),
+ 5: Accessor(position=3, inner=Accessor(position=0, inner=None)),
+ 7: Accessor(position=4, inner=Accessor(position=0, inner=None)),
+ 8: Accessor(position=4, inner=Accessor(position=1, inner=None)),
+ 9: Accessor(position=4, inner=Accessor(position=1,
inner=Accessor(position=0, inner=None))),
+ 10: Accessor(position=4, inner=Accessor(position=1,
inner=Accessor(position=1, inner=None))),
+ 12: Accessor(position=5, inner=Accessor(position=0, inner=None)),
+ 13: Accessor(position=5, inner=Accessor(position=0,
inner=Accessor(position=0, inner=None))),
+ 14: Accessor(position=5, inner=Accessor(position=0,
inner=Accessor(position=1, inner=None))),
+ }
+
+
+def test_build_position_accessors_list():
+ iceberg_schema = schema.Schema(
+ NestedField(
+ field_id=4,
+ name="qux",
+ field_type=ListType(element_id=5, element_type=StringType(),
element_is_optional=True),
+ is_optional=True,
+ ),
+ schema_id=1,
+ )
+ accessors = build_position_accessors(iceberg_schema)
+ assert accessors == {
+ 5: Accessor(position=0, inner=Accessor(position=0, inner=None)),
+ }
+
+
+def test_build_position_accessors_map():
+ iceberg_schema = schema.Schema(
+ NestedField(
+ field_id=6,
+ name="quux",
+ field_type=MapType(
+ key_id=7,
+ key_type=StringType(),
+ value_id=8,
+ value_type=MapType(
+ key_id=9, key_type=StringType(), value_id=10,
value_type=IntegerType(), value_is_optional=True
+ ),
+ value_is_optional=True,
+ ),
+ is_optional=True,
+ ),
+ schema_id=1,
+ )
+ accessors = build_position_accessors(iceberg_schema)
+ assert accessors == {
+ 7: Accessor(position=0, inner=Accessor(position=0, inner=None)),
+ 8: Accessor(position=0, inner=Accessor(position=1, inner=None)),
+ 9: Accessor(position=0, inner=Accessor(position=1,
inner=Accessor(position=0, inner=None))),
+ 10: Accessor(position=0, inner=Accessor(position=1,
inner=Accessor(position=1, inner=None))),
+ }
+
+
+class TestStructProtocol(StructProtocol):
Review Comment:
I mean just this test class: `TestStructProtocol` -> `TestStruct`.
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