DefaultConfigurationProcessorTest.java

/*
 * Copyright 2014-2016 CyberVision, 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.
 */

package org.kaaproject.kaa.client.configuration;

import static org.mockito.Mockito.eq;
import static org.mockito.Mockito.mock;
import static org.mockito.Mockito.times;
import static org.mockito.Mockito.verify;

import org.apache.avro.Schema;
import org.apache.avro.generic.GenericArray;
import org.apache.avro.generic.GenericData;
import org.apache.avro.generic.GenericRecord;
import org.junit.Test;
import org.kaaproject.kaa.client.configuration.manager.DefaultConfigurationManagerTest;
import org.kaaproject.kaa.common.avro.GenericAvroConverter;

import java.io.File;
import java.io.IOException;
import java.net.URL;
import java.nio.ByteBuffer;

public class DefaultConfigurationProcessorTest {

  private static byte[] getSerializedDelta(Schema schema, GenericRecord delta) throws IOException {
    DefaultConfigurationManagerTest.fillComplexFullResyncDelta(delta);

    GenericRecord deltaHandler = new GenericData.Record(schema.getElementType());
    deltaHandler.put("delta", delta);
    GenericArray<GenericRecord> array = new GenericData.Array<GenericRecord>(1, schema);
    array.add(deltaHandler);

    GenericAvroConverter<GenericArray<GenericRecord>> converter = new GenericAvroConverter<GenericArray<GenericRecord>>(schema);
    return converter.encode(array);
  }

  @Test
  public void testUpdates() throws IOException {
    GenericDeltaReceiver receiver = mock(GenericDeltaReceiver.class);
    DefaultConfigurationProcessor processor = new DefaultConfigurationProcessor();
    processor.subscribeForUpdates(receiver);
    processor.subscribeForUpdates(receiver);
    processor.subscribeForUpdates(null);

    URL schemaUrl = Thread.currentThread().getContextClassLoader().getResource("configuration/manager/complexFieldsDeltaSchema.json");
    Schema schema = new Schema.Parser().parse(new File(schemaUrl.getPath()));
    processor.onSchemaUpdated(schema);
    processor.onSchemaUpdated(null);

    GenericRecord delta = new GenericData.Record(DefaultConfigurationManagerTest.getDeltaSchemaByFullName(schema, "org.kaa.config.testT"));
    byte[] rawData = getSerializedDelta(schema, delta);

    processor.processConfigurationData(ByteBuffer.wrap(rawData), true);
    processor.processConfigurationData(null, true);
    processor.unsubscribeFromUpdates(receiver);
    processor.unsubscribeFromUpdates(null);
    processor.processConfigurationData(ByteBuffer.wrap(rawData), true);

    verify(receiver, times(1)).onDeltaReceived(eq(0), eq(delta), eq(true));
  }

  @Test
  public void testOnProcessedCallback() throws IOException {
    ConfigurationProcessedObserver callback = mock(ConfigurationProcessedObserver.class);
    DefaultConfigurationProcessor processor = new DefaultConfigurationProcessor();
    processor.addOnProcessedCallback(callback);
    processor.addOnProcessedCallback(callback);
    processor.addOnProcessedCallback(null);

    URL schemaUrl = Thread.currentThread().getContextClassLoader().getResource("configuration/manager/complexFieldsDeltaSchema.json");
    Schema schema = new Schema.Parser().parse(new File(schemaUrl.getPath()));
    processor.onSchemaUpdated(schema);

    GenericRecord delta = new GenericData.Record(DefaultConfigurationManagerTest.getDeltaSchemaByFullName(schema, "org.kaa.config.testT"));
    byte[] rawData = getSerializedDelta(schema, delta);

    processor.processConfigurationData(ByteBuffer.wrap(rawData), true);
    processor.processConfigurationData(null, true);
    processor.removeOnProcessedCallback(callback);
    processor.removeOnProcessedCallback(null);
    processor.processConfigurationData(ByteBuffer.wrap(rawData), true);

    verify(callback, times(1)).onConfigurationProcessed();
  }

  @Test(expected = ConfigurationRuntimeException.class)
  public void testUpdatesWithNullSchema() throws IOException {
    DefaultConfigurationProcessor processor = new DefaultConfigurationProcessor();

    URL schemaUrl = Thread.currentThread().getContextClassLoader().getResource("configuration/manager/complexFieldsDeltaSchema.json");
    Schema schema = new Schema.Parser().parse(new File(schemaUrl.getPath()));

    GenericRecord delta = new GenericData.Record(DefaultConfigurationManagerTest.getDeltaSchemaByFullName(schema, "org.kaa.config.testT"));
    byte[] rawData = getSerializedDelta(schema, delta);

    processor.processConfigurationData(ByteBuffer.wrap(rawData), true);
  }

}