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DefaultWebsocketConfigTest.java
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DefaultWebsocketConfigTest.java
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/*
* Copyright (c) 2019 Contributors to the Eclipse Foundation
*
* See the NOTICE file(s) distributed with this work for additional
* information regarding copyright ownership.
*
* This program and the accompanying materials are made available under the
* terms of the Eclipse Public License 2.0 which is available at
* http://www.eclipse.org/legal/epl-2.0
*
* SPDX-License-Identifier: EPL-2.0
*/
package org.eclipse.ditto.gateway.service.util.config.streaming;
import static org.assertj.core.api.AssertionsForClassTypes.assertThat;
import static org.mutabilitydetector.unittesting.AllowedReason.provided;
import static org.mutabilitydetector.unittesting.MutabilityAssert.assertInstancesOf;
import static org.mutabilitydetector.unittesting.MutabilityMatchers.areImmutable;
import java.time.Duration;
import org.assertj.core.api.JUnitSoftAssertions;
import org.assertj.core.data.Percentage;
import org.eclipse.ditto.base.service.config.ThrottlingConfig;
import org.junit.BeforeClass;
import org.junit.Ignore;
import org.junit.Rule;
import org.junit.Test;
import com.typesafe.config.Config;
import com.typesafe.config.ConfigFactory;
import nl.jqno.equalsverifier.EqualsVerifier;
/**
* Unit test for {@link DefaultWebsocketConfig}.
*/
public final class DefaultWebsocketConfigTest {
private static Config webSocketTestConfig;
@Rule
public final JUnitSoftAssertions softly = new JUnitSoftAssertions();
@BeforeClass
public static void initTestFixture() {
webSocketTestConfig = ConfigFactory.load("websocket-test");
}
@Test
@Ignore("https://github.com/MutabilityDetector/MutabilityDetector/issues/185")
public void assertImmutability() {
assertInstancesOf(DefaultWebsocketConfig.class, areImmutable(),
provided(ThrottlingConfig.class).isAlsoImmutable());
}
@Test
public void testHashCodeAndEquals() {
EqualsVerifier.forClass(DefaultWebsocketConfig.class)
.usingGetClass()
.verify();
}
@Test
public void underTestReturnsDefaultValuesIfBaseConfigWasEmpty() {
final WebsocketConfig underTest = DefaultWebsocketConfig.of(ConfigFactory.empty());
softly.assertThat(underTest.getSubscriberBackpressureQueueSize())
.as(WebsocketConfig.WebsocketConfigValue.SUBSCRIBER_BACKPRESSURE_QUEUE_SIZE.getConfigPath())
.isEqualTo(WebsocketConfig.WebsocketConfigValue.SUBSCRIBER_BACKPRESSURE_QUEUE_SIZE.getDefaultValue());
softly.assertThat(underTest.getPublisherBackpressureBufferSize())
.as(WebsocketConfig.WebsocketConfigValue.PUBLISHER_BACKPRESSURE_BUFFER_SIZE.getConfigPath())
.isEqualTo(WebsocketConfig.WebsocketConfigValue.PUBLISHER_BACKPRESSURE_BUFFER_SIZE.getDefaultValue());
softly.assertThat(underTest.getThrottlingRejectionFactor())
.as(WebsocketConfig.WebsocketConfigValue.THROTTLING_REJECTION_FACTOR.getConfigPath())
.isCloseTo((Double) WebsocketConfig.WebsocketConfigValue.THROTTLING_REJECTION_FACTOR.getDefaultValue(),
Percentage.withPercentage(1.0));
}
@Test
public void underTestReturnsValuesOfConfigFile() {
final WebsocketConfig underTest = DefaultWebsocketConfig.of(webSocketTestConfig);
softly.assertThat(underTest.getSubscriberBackpressureQueueSize())
.as(WebsocketConfig.WebsocketConfigValue.SUBSCRIBER_BACKPRESSURE_QUEUE_SIZE.getConfigPath())
.isEqualTo(23);
softly.assertThat(underTest.getPublisherBackpressureBufferSize())
.as(WebsocketConfig.WebsocketConfigValue.PUBLISHER_BACKPRESSURE_BUFFER_SIZE.getConfigPath())
.isEqualTo(42);
softly.assertThat(underTest.getThrottlingRejectionFactor())
.as(WebsocketConfig.WebsocketConfigValue.THROTTLING_REJECTION_FACTOR.getConfigPath())
.isCloseTo(1.875, Percentage.withPercentage(1.0));
softly.assertThat(underTest.getThrottlingConfig().getInterval())
.as("throttling.interval")
.isEqualTo(Duration.ofSeconds(8L));
softly.assertThat(underTest.getThrottlingConfig().getLimit())
.as("throttling.limit")
.isEqualTo(9);
}
@Test
public void render() {
final WebsocketConfig underTest = DefaultWebsocketConfig.of(webSocketTestConfig);
final Config rendered = underTest.render();
final WebsocketConfig reconstructed = DefaultWebsocketConfig.of(rendered);
assertThat(reconstructed).isEqualTo(underTest);
}
}