jbonofre commented on code in PR #11839:
URL: https://github.com/apache/iceberg/pull/11839#discussion_r1927283203


##########
flink/v1.20/flink/src/test/java/org/apache/iceberg/flink/data/TestFlinkParquetReader.java:
##########
@@ -236,4 +457,44 @@ protected void writeAndValidate(Schema schema) throws 
IOException {
         RandomGenericData.generateFallbackRecords(schema, NUM_RECORDS, 21124, 
NUM_RECORDS / 20),
         schema);
   }
+
+  @Override
+  protected void writeAndValidate(Schema writeSchema, Schema expectedSchema) 
throws IOException {
+    assumeThat(
+            TypeUtil.find(
+                writeSchema,
+                type -> type.isMapType() && type.asMapType().keyType() != 
Types.StringType.get()))
+        .as("Parquet Avro cannot write non-string map keys")
+        .isNull();

Review Comment:
   I updated the private method to support `expectedSchema` (optionally) and 
compare with this schema when provided. Thanks to that, the private 
`writeAndValidate()` is used in `writeAndValidate(writeSchema, expectedSchema)` 
(for default values).



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