steven-aerts commented on a change in pull request #26907: [SPARK-30267][SQL] 
Avro arrays can be of any List
URL: https://github.com/apache/spark/pull/26907#discussion_r358781693
 
 

 ##########
 File path: 
external/avro/src/test/scala/org/apache/spark/sql/avro/AvroCatalystDataConversionSuite.scala
 ##########
 @@ -127,6 +127,25 @@ class AvroCatalystDataConversionSuite extends 
SparkFunSuite
     }
   }
 
+  {
+    val seed = scala.util.Random.nextLong()
+    val rand = new scala.util.Random(seed)
+    val schema = StructType(
+      StructField("a",
+        ArrayType(
+          RandomDataGenerator.randomNestedSchema(rand, 10, testingTypes)
+          , containsNull = false)
+        , nullable = false) :: Nil
+    )
+
+    test(s"array of nested schema ${schema.catalogString} with seed $seed") {
+      val data = RandomDataGenerator.randomRow(rand, schema)
+      val converter = CatalystTypeConverters.createToCatalystConverter(schema)
+      val input = Literal.create(converter(data), schema)
+      roundTripTest(input)
+    }
+  }
 
 Review comment:
   Ok, thanks, updated it like this.

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