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// Copyright Vespa.ai. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
package com.yahoo.config.subscription;
import com.yahoo.config.ConfigInstance;
import com.yahoo.foo.*;
import org.junit.Test;
import static org.junit.Assert.*;
import static org.hamcrest.CoreMatchers.is;
/**
* Tests ConfigSubscriber API, and the ConfigHandle class.
*
* @author Harald Musum
*/
public class ConfigApiTest {
private static final String CONFIG_ID = "raw:" + "times 1\n";
@Test
public void testConfigSubscriber() {
ConfigSubscriber subscriber = new ConfigSubscriber();
ConfigHandle<AppConfig> h = subscriber.subscribe(AppConfig.class, CONFIG_ID);
assertNotNull(h);
subscriber.nextConfig(false);
assertNotNull(h.getConfig());
assertEquals(AppConfig.CONFIG_DEF_NAME, ConfigInstance.getDefName(h.getConfig().getClass()));
assertTrue(h.isChanged());
assertTrue(h.toString().startsWith("Handle changed: true\nSub:\n"));
subscriber.close();
assertEquals(ConfigSubscriber.State.CLOSED, subscriber.state());
}
/**
* Verifies that we get an exception when trying to subscribe after close() has been called
* for a ConfigSubscriber
*/
@Test(expected = IllegalStateException.class)
public void testSubscribeAfterClose() {
ConfigSubscriber subscriber = new ConfigSubscriber();
subscriber.subscribe(AppConfig.class, CONFIG_ID);
subscriber.nextConfig(false);
subscriber.close();
subscriber.subscribe(AppConfig.class, CONFIG_ID);
}
/**
* Verifies that it is not possible to to subscribe again after calling nextConfig()
*/
@Test(expected = IllegalStateException.class)
public void testSubscribeAfterNextConfig() {
ConfigSubscriber subscriber = new ConfigSubscriber();
subscriber.subscribe(AppConfig.class, CONFIG_ID);
subscriber.nextConfig(false);
subscriber.subscribe(AppConfig.class, CONFIG_ID);
subscriber.close();
}
}
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