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/*
* ============LICENSE_START=======================================================
* PNF-REGISTRATION-HANDLER
* ================================================================================
* Copyright (C) 2019 NOKIA Intellectual Property. 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.dcaegen2.services.prh.configuration;
import org.junit.jupiter.api.AfterEach;
import org.junit.jupiter.api.BeforeEach;
import org.junit.jupiter.api.Test;
import org.junit.jupiter.api.extension.ExtendWith;
import org.mockito.Mock;
import org.mockito.junit.jupiter.MockitoExtension;
import org.springframework.cloud.context.environment.EnvironmentChangeEvent;
import org.springframework.cloud.context.refresh.ContextRefresher;
import org.springframework.core.env.Environment;
import reactor.test.scheduler.VirtualTimeScheduler;
import java.time.Duration;
import java.util.Collections;
import static org.mockito.Mockito.*;
@ExtendWith(MockitoExtension.class)
class CbsConfigRefreshSchedulerTest {
private static final Duration SOME_UPDATES_INTERVAL = Duration.ofMinutes(5);
private static final String CBS_UPDATES_INTERVAL_PROPERTY = "cbs.updates-interval";
@Mock
private ContextRefresher contextRefresher;
@Mock
private Environment environment;
private VirtualTimeScheduler virtualTimeScheduler;
private CbsConfigRefreshScheduler cbsConfigRefreshScheduler;
@BeforeEach
void setUp() {
virtualTimeScheduler = VirtualTimeScheduler.getOrSet();
when(environment.getProperty(CBS_UPDATES_INTERVAL_PROPERTY, Duration.class, Duration.ZERO))
.thenReturn(SOME_UPDATES_INTERVAL);
cbsConfigRefreshScheduler = new CbsConfigRefreshScheduler(contextRefresher, environment);
}
@AfterEach
void tearDown() {
virtualTimeScheduler.dispose();
}
@Test
void configRefreshUpdatesShouldBeFiredAccordingToConfiguredInterval() {
cbsConfigRefreshScheduler.startPollingForCbsUpdates();
verify(contextRefresher, times(0)).refresh();
virtualTimeScheduler.advanceTimeBy(SOME_UPDATES_INTERVAL);
verify(contextRefresher, times(1)).refresh();
virtualTimeScheduler.advanceTimeBy(SOME_UPDATES_INTERVAL);
verify(contextRefresher, times(2)).refresh();
}
@Test
void whenConfigUpdateIntervalIsSetToZero_UpdatesShouldNotBeExecuted() {
when(environment.getProperty(CBS_UPDATES_INTERVAL_PROPERTY, Duration.class, Duration.ZERO))
.thenReturn(Duration.ZERO);
cbsConfigRefreshScheduler.startPollingForCbsUpdates();
virtualTimeScheduler.advanceTimeBy(Duration.ofHours(10));
verifyZeroInteractions(contextRefresher);
}
@Test
void whenUpdateFails_shouldContinueWithUpdateRequestsAccordingToConfiguredSchedule() {
when(contextRefresher.refresh())
.thenThrow(new RuntimeException("kaboom!"))
.thenReturn(Collections.emptySet());
cbsConfigRefreshScheduler.startPollingForCbsUpdates();
virtualTimeScheduler.advanceTimeBy(SOME_UPDATES_INTERVAL.plus(SOME_UPDATES_INTERVAL));
verify(contextRefresher, times(2)).refresh();
}
@Test
void whenUpdatesIntervalIsChangedInEnvironment_UpdatesShouldBeRescheduled() {
when(environment.getProperty(CBS_UPDATES_INTERVAL_PROPERTY, Duration.class, Duration.ZERO))
.thenReturn(Duration.ofMinutes(30))
.thenReturn(Duration.ofSeconds(10));
cbsConfigRefreshScheduler.startPollingForCbsUpdates();
cbsConfigRefreshScheduler.onEnvironmentChanged(
new EnvironmentChangeEvent(Collections.singleton(CBS_UPDATES_INTERVAL_PROPERTY)));
virtualTimeScheduler.advanceTimeBy(Duration.ofMinutes(1));
verify(contextRefresher, times(6)).refresh();
}
@Test
void whenEnvironmentChangeDoesNotAffectUpdatesInterval_UpdatesScheduleShouldNotBeImpacted() {
cbsConfigRefreshScheduler.startPollingForCbsUpdates();
Duration envChangeDelay = Duration.ofMinutes(1);
virtualTimeScheduler.advanceTimeBy(envChangeDelay);
cbsConfigRefreshScheduler.onEnvironmentChanged(new EnvironmentChangeEvent(Collections.emptySet()));
virtualTimeScheduler.advanceTimeBy(SOME_UPDATES_INTERVAL.minus(envChangeDelay));
verify(contextRefresher).refresh();
}
}
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