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/*-
* ============LICENSE_START=======================================================
* org.onap.dcaegen2.collectors.ves
* ================================================================================
* Copyright (C) 2018 Nokia. All rights reserved.
* ================================================================================
* 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.
* ============LICENSE_END=========================================================
*/
package org.onap.dcae.commonFunction;
import static org.hamcrest.CoreMatchers.allOf;
import static org.hamcrest.CoreMatchers.instanceOf;
import static org.junit.Assert.assertSame;
import static org.mockito.ArgumentMatchers.any;
import static org.mockito.ArgumentMatchers.anyLong;
import static org.mockito.ArgumentMatchers.anyString;
import static org.mockito.BDDMockito.given;
import static org.mockito.Mockito.times;
import static org.mockito.Mockito.verify;
import com.att.nsa.cambria.client.CambriaBatchingPublisher;
import com.att.nsa.cambria.client.CambriaPublisher;
import com.google.common.collect.ImmutableList;
import com.google.common.util.concurrent.UncheckedExecutionException;
import java.io.IOException;
import java.net.MalformedURLException;
import java.security.GeneralSecurityException;
import java.util.concurrent.TimeUnit;
import org.hamcrest.BaseMatcher;
import org.hamcrest.Description;
import org.hamcrest.Matcher;
import org.junit.Before;
import org.junit.Rule;
import org.junit.Test;
import org.junit.rules.ExpectedException;
import org.junit.runner.RunWith;
import org.mockito.Mock;
import org.mockito.junit.MockitoJUnitRunner;
@RunWith(MockitoJUnitRunner.class)
public class DmaapPublishersTest {
@Mock
private CambriaPublisherFactory publisherFactory;
@Mock
private CambriaBatchingPublisher cambriaPublisher;
private DmaapPublishers cut;
@Rule
public ExpectedException expectedException = ExpectedException.none();
@Before
public void setUp() throws MalformedURLException, GeneralSecurityException {
given(publisherFactory.createCambriaPublisher(anyString())).willReturn(cambriaPublisher);
cut = DmaapPublishers.create(publisherFactory);
}
@Test
public void getByStreamIdShouldUseCachedItem() throws IOException, GeneralSecurityException {
// given
String streamId = "sampleStream";
// when
CambriaBatchingPublisher firstPublisher = cut.getByStreamId(streamId);
CambriaBatchingPublisher secondPublisher = cut.getByStreamId(streamId);
// then
verify(publisherFactory, times(1)).createCambriaPublisher(streamId);
assertSame("should return same instance", firstPublisher, secondPublisher);
}
@Test
public void getByStreamIdShouldHandleErrors() throws MalformedURLException, GeneralSecurityException {
// given
MalformedURLException exception = new MalformedURLException();
given(publisherFactory.createCambriaPublisher(anyString())).willThrow(exception);
expectedException.expect(allOf(
instanceOf(UncheckedExecutionException.class),
causeIsInstanceOf(exception.getClass())));
// when
cut.getByStreamId("a stream");
// then
// exception should have been thrown
}
@Test
public void closeByStreamIdShouldCloseConnection() throws IOException, InterruptedException {
// given
String streamId = "sampleStream";
given(cambriaPublisher.close(anyLong(), any(TimeUnit.class)))
.willReturn(ImmutableList.of(new CambriaPublisher.message("p", "msg")));
// when
CambriaBatchingPublisher cachedPublisher = cut.getByStreamId(streamId);
cut.closeByStreamId(streamId);
// then
assertSame("should return proper publisher", cambriaPublisher, cachedPublisher);
verify(cambriaPublisher).close(20, TimeUnit.SECONDS);
}
@Test
public void closeByStreamIdShouldHandleErrors() throws IOException, InterruptedException {
// given
String streamId = "sampleStream";
given(cambriaPublisher.close(anyLong(), any(TimeUnit.class))).willThrow(IOException.class);
// when
CambriaBatchingPublisher cachedPublisher = cut.getByStreamId(streamId);
cut.closeByStreamId(streamId);
// then
assertSame("should return proper publisher", cambriaPublisher, cachedPublisher);
verify(cambriaPublisher).close(20, TimeUnit.SECONDS);
}
private Matcher<Exception> causeIsInstanceOf(final Class<?> clazz) {
return new BaseMatcher<Exception>() {
@Override
public boolean matches(Object o) {
return o instanceof Throwable && clazz.isInstance(((Throwable) o).getCause());
}
@Override
public void describeTo(Description description) {
description.appendText("exception cause should be an instance of " + clazz.getName());
}
};
}
}
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