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#!/usr/bin/env python
# -*- coding: utf-8 -*-
#
# Copyright 2020 Confluent Inc.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
import pytest
from confluent_kafka.schema_registry import (record_subject_name_strategy,
SchemaRegistryClient,
topic_record_subject_name_strategy)
from confluent_kafka.schema_registry.avro import AvroSerializer
from confluent_kafka.serialization import (MessageField,
SerializationContext)
# MockSchemaRegistryClient, see ./conftest.py for additional details.
TEST_URL = 'http://SchemaRegistry:65534'
def test_avro_serializer_config_auto_register_schemas():
"""
Ensures auto.register.schemas is applied
"""
conf = {'url': TEST_URL}
test_client = SchemaRegistryClient(conf)
test_serializer = AvroSerializer(test_client, 'string',
conf={'auto.register.schemas': False})
assert not test_serializer._auto_register
def test_avro_serializer_config_auto_register_schemas_invalid():
"""
Ensures auto.register.schemas is applied
"""
conf = {'url': TEST_URL}
test_client = SchemaRegistryClient(conf)
with pytest.raises(ValueError, match="must be a boolean"):
AvroSerializer(test_client, 'string',
conf={'auto.register.schemas': dict()})
def test_avro_serializer_config_auto_register_schemas_false(mock_schema_registry):
"""
Ensures auto.register.schemas=False does not register schema
"""
conf = {'url': TEST_URL}
test_client = mock_schema_registry(conf)
topic = "test-auto-register"
subject = topic + '-key'
test_serializer = AvroSerializer(test_client, 'string',
conf={'auto.register.schemas': False})
test_serializer("test",
SerializationContext("test-auto-register",
MessageField.KEY))
register_count = test_client.counter['POST'].get('/subjects/{}/versions'
.format(subject), 0)
assert register_count == 0
# Ensure lookup_schema was invoked instead
assert test_client.counter['POST'].get('/subjects/{}'.format(subject)) == 1
def test_avro_serializer_config_subject_name_strategy():
"""
Ensures subject.name.strategy is applied
"""
conf = {'url': TEST_URL}
test_client = SchemaRegistryClient(conf)
test_serializer = AvroSerializer(test_client, 'int',
conf={'subject.name.strategy':
record_subject_name_strategy})
assert test_serializer._subject_name_func is record_subject_name_strategy
def test_avro_serializer_config_subject_name_strategy_invalid():
"""
Ensures subject.name.strategy is applied
"""
conf = {'url': TEST_URL}
test_client = SchemaRegistryClient(conf)
with pytest.raises(ValueError, match="must be callable"):
AvroSerializer(test_client, 'int',
conf={'subject.name.strategy': dict()})
def test_avro_serializer_record_subject_name_strategy(load_avsc):
"""
Ensures record_subject_name_strategy returns the correct record name
"""
conf = {'url': TEST_URL}
test_client = SchemaRegistryClient(conf)
test_serializer = AvroSerializer(test_client,
load_avsc('basic_schema.avsc'),
conf={'subject.name.strategy':
record_subject_name_strategy})
ctx = SerializationContext('test_subj', MessageField.VALUE)
assert test_serializer._subject_name_func(ctx,
test_serializer._schema_name) == 'python.test.basic'
def test_avro_serializer_record_subject_name_strategy_primitive(load_avsc):
"""
Ensures record_subject_name_strategy returns the correct record name.
Also verifies transformation from Avro canonical form.
"""
conf = {'url': TEST_URL}
test_client = SchemaRegistryClient(conf)
test_serializer = AvroSerializer(test_client, 'int',
conf={'subject.name.strategy':
record_subject_name_strategy})
ctx = SerializationContext('test_subj', MessageField.VALUE)
assert test_serializer._subject_name_func(ctx,
test_serializer._schema_name) == 'int'
def test_avro_serializer_topic_record_subject_name_strategy(load_avsc):
"""
Ensures record_subject_name_strategy returns the correct record name
"""
conf = {'url': TEST_URL}
test_client = SchemaRegistryClient(conf)
test_serializer = AvroSerializer(test_client,
load_avsc('basic_schema.avsc'),
conf={'subject.name.strategy':
topic_record_subject_name_strategy})
ctx = SerializationContext('test_subj', MessageField.VALUE)
assert test_serializer._subject_name_func(
ctx, test_serializer._schema_name) == 'test_subj-python.test.basic'
def test_avro_serializer_topic_record_subject_name_strategy_primitive(load_avsc):
"""
Ensures record_subject_name_strategy returns the correct record name.
Also verifies transformation from Avro canonical form.
"""
conf = {'url': TEST_URL}
test_client = SchemaRegistryClient(conf)
test_serializer = AvroSerializer(test_client, 'int',
conf={'subject.name.strategy':
topic_record_subject_name_strategy})
ctx = SerializationContext('test_subj', MessageField.VALUE)
assert test_serializer._subject_name_func(
ctx, test_serializer._schema_name) == 'test_subj-int'
def test_avro_serializer_subject_name_strategy_default(load_avsc):
"""
Ensures record_subject_name_strategy returns the correct record name
"""
conf = {'url': TEST_URL}
test_client = SchemaRegistryClient(conf)
test_serializer = AvroSerializer(test_client,
load_avsc('basic_schema.avsc'))
ctx = SerializationContext('test_subj', MessageField.VALUE)
assert test_serializer._subject_name_func(
ctx, test_serializer._schema_name) == 'test_subj-value'
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