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/*-
* ============LICENSE_START=======================================================
* Copyright (C) 2018 Intel. All rights reserved.
* Copyright (C) 2019-2020, 2022 Nordix Foundation.
* ================================================================================
* 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.
*
* SPDX-License-Identifier: Apache-2.0
* ============LICENSE_END=========================================================
*/
package org.onap.policy.distribution.reception.handling.file;
import static org.assertj.core.api.Assertions.assertThatCode;
import com.google.gson.Gson;
import com.google.gson.GsonBuilder;
import java.io.File;
import java.io.FileReader;
import java.io.IOException;
import java.nio.file.Files;
import java.nio.file.Paths;
import java.util.concurrent.atomic.AtomicInteger;
import org.junit.After;
import org.junit.Before;
import org.junit.Rule;
import org.junit.Test;
import org.junit.rules.TemporaryFolder;
import org.mockito.Mockito;
import org.mockito.stubbing.Answer;
import org.onap.policy.common.parameters.ParameterService;
import org.onap.policy.distribution.reception.statistics.DistributionStatisticsManager;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
* Class to perform unit test of {@link FileSystemReceptionHandler}.
*/
public class TestFileSystemReceptionHandler {
private static final Logger LOGGER = LoggerFactory.getLogger(TestFileSystemReceptionHandler.class);
@Rule
public TemporaryFolder tempFolder = new TemporaryFolder();
private FileSystemReceptionHandlerConfigurationParameterGroup pssdConfigParameters;
private FileSystemReceptionHandler fileSystemHandler;
/**
* Setup for the test cases.
*
* @throws IOException if it occurs
* @throws SecurityException if it occurs
* @throws IllegalArgumentException if it occurs
*/
@Before
public final void init() throws IOException, SecurityException, IllegalArgumentException {
DistributionStatisticsManager.resetAllStatistics();
final Gson gson = new GsonBuilder().create();
pssdConfigParameters = gson.fromJson(new FileReader("src/test/resources/handling-filesystem.json"),
FileSystemReceptionHandlerConfigurationParameterGroup.class);
ParameterService.register(pssdConfigParameters);
fileSystemHandler = new FileSystemReceptionHandler();
}
@After
public void teardown() {
ParameterService.deregister(pssdConfigParameters);
}
@Test
public final void testInit() throws IOException {
FileSystemReceptionHandler sypHandler = Mockito.spy(fileSystemHandler);
Mockito.doNothing().when(sypHandler).initFileWatcher(Mockito.isA(String.class),
Mockito.anyInt());
assertThatCode(() -> sypHandler.initializeReception(pssdConfigParameters.getName()))
.doesNotThrowAnyException();
}
@Test
public final void testDestroy() throws IOException {
final FileSystemReceptionHandler sypHandler = Mockito.spy(fileSystemHandler);
Mockito.doNothing().when(sypHandler).initFileWatcher(Mockito.isA(String.class),
Mockito.anyInt());
assertThatCode(() -> {
sypHandler.initializeReception(pssdConfigParameters.getName());
sypHandler.destroy();
}).doesNotThrowAnyException();
}
@Test
public void testMain() throws IOException {
final Object lock = new Object();
final String watchPath = tempFolder.getRoot().getAbsolutePath();
class Processed {
public boolean processed = false;
}
final Processed cond = new Processed();
final FileSystemReceptionHandler sypHandler = Mockito.spy(fileSystemHandler);
Mockito.doAnswer((Answer<Object>) invocation -> {
synchronized (lock) {
cond.processed = true;
lock.notifyAll();
}
return null;
}).when(sypHandler).createPolicyInputAndCallHandler(Mockito.isA(String.class));
final Thread th = new Thread(() -> {
try {
sypHandler.initFileWatcher(watchPath, 2);
} catch (final IOException ex) {
LOGGER.error("testMain failed", ex);
}
});
th.start();
try {
// wait until internal watch service started or counter reached
final AtomicInteger counter = new AtomicInteger();
counter.set(0);
synchronized (lock) {
while (!sypHandler.isRunning() && counter.getAndIncrement() < 10) {
lock.wait(1000);
}
}
Files.copy(Paths.get("src/test/resources/hpaPolicyHugePage.csar"),
Paths.get(watchPath + File.separator + "hpaPolicyHugePage.csar"));
// wait until mock method triggered or counter reached
counter.set(0);
synchronized (lock) {
while (!cond.processed && counter.getAndIncrement() < 10) {
lock.wait(1000);
}
}
sypHandler.destroy();
th.interrupt();
th.join();
} catch (final InterruptedException ex) {
LOGGER.error("testMain failed", ex);
}
Mockito.verify(sypHandler, Mockito.times(1)).createPolicyInputAndCallHandler(Mockito.isA(String.class));
}
}
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