TomBruns commented on code in PR #2751:
URL: https://github.com/apache/avro/pull/2751#discussion_r1497514873
##########
lang/csharp/src/apache/test/Schema/SchemaTests.cs:
##########
@@ -548,12 +549,77 @@
testToString(sc);
}
+ // Make sure unknown type is carried thru to LogicalTypeName
[TestCase("{\"type\": \"int\", \"logicalType\": \"unknown\"}",
"unknown")]
public void TestUnknownLogical(string s, string unknownType)
{
- var err = Assert.Throws<AvroTypeException>(() => Schema.Parse(s));
+ //var err = Assert.Throws<AvroTypeException>(() =>
Schema.Parse(s));
+ //Assert.AreEqual("Logical type '" + unknownType + "' is not
supported.", err.Message);
- Assert.AreEqual("Logical type '" + unknownType + "' is not
supported.", err.Message);
+ var schema = Schema.Parse(s);
+ Assert.IsInstanceOf(typeof(LogicalSchema), schema);
+
+ var logicalSchema = schema as LogicalSchema;
+ Assert.IsInstanceOf(typeof(UnknownLogicalType),
logicalSchema.LogicalType);
+
+ Assert.AreEqual(logicalSchema.LogicalTypeName, unknownType);
+ }
+
+ /*
+ {
+ "fields": [
+ {
+ "default": 0,
+ "name": "firstField",
+ "type": "int"
+ },
+ {
+ "default": null,
+ "name": "secondField",
+ "type": [
+ "null",
+ {
+ "logicalType": "varchar",
+ "maxLength": 65,
+ "type": "string"
+ }
+ ]
+ }
+ ],
+ "name": "sample_schema",
+ "type": "record"
+ }
+ */
+
+ // Before Change will throw Avro.AvroTypeException: 'Logical type
'varchar' is not supported.'
+ // Per AVRO Spec (v1.8.0 - v1.11.1) ... Logical Types Section
+ // Language implementations must ignore unknown logical types when
reading, and should use the underlying Avro type.
+ [TestCase("{\"fields\": [{\"default\": 0,\"name\":
\"firstField\",\"type\": \"int\"},{\"default\": null,\"name\":
\"secondField\",\"type\": [\"null\",{\"logicalType\":
\"varchar\",\"maxLength\": 65,\"type\": \"string\"}]}],\"name\":
\"sample_schema\",\"type\": \"record\"}")]
+ public void TestUnknownLogicalType(string schemaText)
+ {
+ var schema = Avro.Schema.Parse(schemaText);
+ Assert.IsNotNull(schema);
+
+ var secondField = ((RecordSchema)schema).Fields.FirstOrDefault(f
=> f.Name == @"secondField");
+ Assert.IsNotNull(secondField);
+
+ var secondFieldSchema = ((Field)secondField).Schema;
+ Assert.IsNotNull(secondFieldSchema);
+
+ var secondFieldUnionSchema = (UnionSchema)secondFieldSchema;
+ Assert.IsNotNull(secondFieldUnionSchema);
+
+ var props = secondFieldUnionSchema.Schemas.Where(s => s.Props !=
null).ToList();
+ Assert.IsNotNull(props);
+ Assert.IsTrue(props.Count == 1);
+
+ var prop = props[0];
+ // Confirm that the unknown logical type is ignored and the
underlying AVRO type is used
+ Assert.IsTrue(prop.Name == @"string");
+ var logicalSchema = prop as LogicalSchema;
+ Assert.IsInstanceOf(typeof(UnknownLogicalType),
logicalSchema.LogicalType);
Review Comment:
Added Assert.IsNotNull(logicalSchema);
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