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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.vespa.config.server.host;
import com.yahoo.config.provision.ApplicationId;
import org.junit.Test;
import java.util.ArrayList;
import java.util.Collection;
import java.util.List;
import static org.junit.Assert.assertNotNull;
import static org.junit.Assert.assertNull;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertTrue;
/**
* @author Ulf Lilleengen
*/
public class HostRegistryTest {
private final ApplicationId foo = ApplicationId.from("foo", "app1", "default");
private final ApplicationId bar = ApplicationId.from("bar", "app2", "default");
@Test
public void old_hosts_are_removed() {
HostRegistry reg = new HostRegistry();
assertNull(reg.getApplicationId("foo.com"));
reg.update(foo, List.of("foo.com", "bar.com", "baz.com"));
assertGetKey(reg, "foo.com", foo);
assertGetKey(reg, "bar.com", foo);
assertGetKey(reg, "baz.com", foo);
assertEquals(3, reg.getAllHosts().size());
reg.update(foo, List.of("bar.com", "baz.com"));
assertNull(reg.getApplicationId("foo.com"));
assertGetKey(reg, "bar.com", foo);
assertGetKey(reg, "baz.com", foo);
assertEquals(2, reg.getAllHosts().size());
assertTrue(reg.getAllHosts().containsAll(List.of("bar.com", "baz.com")));
reg.removeHosts(foo);
assertTrue(reg.getAllHosts().isEmpty());
assertNull(reg.getApplicationId("foo.com"));
assertNull(reg.getApplicationId("bar.com"));
}
@Test
public void multiple_keys_are_handled() {
HostRegistry reg = new HostRegistry();
reg.update(foo, List.of("foo.com", "bar.com"));
reg.update(bar, List.of("baz.com", "quux.com"));
assertGetKey(reg, "foo.com", foo);
assertGetKey(reg, "bar.com", foo);
assertGetKey(reg, "baz.com", bar);
assertGetKey(reg, "quux.com", bar);
}
@Test(expected = IllegalArgumentException.class)
public void keys_cannot_overlap() {
HostRegistry reg = new HostRegistry();
reg.update(foo, List.of("foo.com", "bar.com"));
reg.update(bar, List.of("bar.com", "baz.com"));
}
@Test
public void all_hosts_are_returned() {
HostRegistry reg = new HostRegistry();
reg.update(foo, List.of("foo.com", "bar.com"));
reg.update(bar, List.of("baz.com", "quux.com"));
assertEquals(4, reg.getAllHosts().size());
}
@Test
public void ensure_that_collection_is_copied() {
HostRegistry reg = new HostRegistry();
List<String> hosts = new ArrayList<>(List.of("foo.com", "bar.com", "baz.com"));
reg.update(foo, hosts);
assertEquals(3, reg.getHosts(foo).size());
hosts.remove(2);
assertEquals(3, reg.getHosts(foo).size());
}
@Test
public void ensure_that_underlying_hosts_do_not_change() {
HostRegistry reg = new HostRegistry();
reg.update(foo, List.of("foo.com", "bar.com", "baz.com"));
Collection<String> hosts = reg.getAllHosts();
assertEquals(3, hosts.size());
reg.update(foo, List.of("foo.com"));
assertEquals(3, hosts.size());
}
private void assertGetKey(HostRegistry reg, String host, ApplicationId expectedKey) {
assertNotNull(reg.getApplicationId(host));
assertEquals(expectedKey, reg.getApplicationId(host));
}
}
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