public async Task CanSerializeAndDeserializeWithCompatibleSchema()
{
var client = CreateClient();
var groupName = TestEnvironment.SchemaRegistryGroup;
var employee = new Employee_V2 {
Age = 42, Name = "Caketown", City = "Redmond"
};
var encoder = new SchemaRegistryAvroEncoder(client, groupName, new SchemaRegistryAvroObjectEncoderOptions()
{
AutoRegisterSchemas = true
});
(string schemaId, BinaryData data) = await encoder.EncodeAsync(employee, typeof(Employee_V2), CancellationToken.None);
// deserialize using the old schema, which is forward compatible with the new schema
// if you swap the old schema and the new schema in your mind, then this can also be thought as a backwards compatible test
var deserializedObject = await encoder.DecodeAsync(data, schemaId, typeof(Employee), CancellationToken.None);
var readEmployee = deserializedObject as Employee;
Assert.IsNotNull(readEmployee);
Assert.AreEqual("Caketown", readEmployee.Name);
Assert.AreEqual(42, readEmployee.Age);
// deserialize using the new schema to make sure we are respecting it
deserializedObject = await encoder.DecodeAsync(data, schemaId, typeof(Employee_V2), CancellationToken.None);
var readEmployeeV2 = deserializedObject as Employee_V2;
Assert.IsNotNull(readEmployee);
Assert.AreEqual("Caketown", readEmployeeV2.Name);
Assert.AreEqual(42, readEmployeeV2.Age);
Assert.AreEqual("Redmond", readEmployeeV2.City);
}
public async Task CanSerializeAndDeserializeGenericRecord()
{
var client = CreateClient();
var groupName = TestEnvironment.SchemaRegistryGroup;
var record = new GenericRecord((RecordSchema)Employee._SCHEMA);
record.Add("Name", "Caketown");
record.Add("Age", 42);
using var memoryStream = new MemoryStream();
var encoder = new SchemaRegistryAvroEncoder(client, groupName, new SchemaRegistryAvroObjectEncoderOptions {
AutoRegisterSchemas = true
});
(string schemaId, BinaryData data) = await encoder.EncodeAsync(record, typeof(GenericRecord), CancellationToken.None);
memoryStream.Position = 0;
var deserializedObject = await encoder.DecodeAsync(data, schemaId, typeof(GenericRecord), CancellationToken.None);
var readRecord = deserializedObject as GenericRecord;
Assert.IsNotNull(readRecord);
Assert.AreEqual("Caketown", readRecord.GetValue(0));
Assert.AreEqual(42, readRecord.GetValue(1));
}
public async Task CannotDeserializeWithNullSchemaId()
{
var client = CreateClient();
var groupName = TestEnvironment.SchemaRegistryGroup;
var serializer = new SchemaRegistryAvroEncoder(client, groupName, new SchemaRegistryAvroObjectEncoderOptions {
AutoRegisterSchemas = true
});
Assert.ThrowsAsync <ArgumentNullException>(async() => await serializer.DecodeAsync(new BinaryData(Array.Empty <byte>()), null, typeof(TimeZoneInfo), CancellationToken.None));
await Task.CompletedTask;
}
public async Task CannotDeserializeIntoNonCompatibleType()
{
var client = CreateClient();
var groupName = TestEnvironment.SchemaRegistryGroup;
var employee = new Employee()
{
Age = 42, Name = "Caketown"
};
var encoder = new SchemaRegistryAvroEncoder(client, groupName, new SchemaRegistryAvroObjectEncoderOptions()
{
AutoRegisterSchemas = true
});
(string schemaId, BinaryData data) = await encoder.EncodeAsync(employee, typeof(Employee), CancellationToken.None);
// deserialize with the new schema, which is NOT backward compatible with the old schema as it adds a new field
Assert.That(
async() => await encoder.DecodeAsync(data, schemaId, typeof(Employee_V2), CancellationToken.None),
Throws.InstanceOf <AvroException>());
}
public async Task CanSerializeAndDeserialize()
{
var client = CreateClient();
var groupName = TestEnvironment.SchemaRegistryGroup;
var employee = new Employee {
Age = 42, Name = "Caketown"
};
var encoder = new SchemaRegistryAvroEncoder(client, groupName, new SchemaRegistryAvroObjectEncoderOptions()
{
AutoRegisterSchemas = true
});
(string schemaId, BinaryData data) = await encoder.EncodeAsync(employee, typeof(Employee), CancellationToken.None);
var deserializedObject = await encoder.DecodeAsync(data, schemaId, typeof(Employee), CancellationToken.None);
var readEmployee = deserializedObject as Employee;
Assert.IsNotNull(readEmployee);
Assert.AreEqual("Caketown", readEmployee.Name);
Assert.AreEqual(42, readEmployee.Age);
}
