/**
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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.
*/
package org.apache.ambari.server.topology;
import static org.easymock.EasyMock.createNiceMock;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertNull;
import static org.junit.Assert.assertSame;
import static org.junit.Assert.assertTrue;
import java.util.Arrays;
import java.util.Collection;
import org.apache.ambari.server.api.predicate.InvalidQueryException;
import org.apache.ambari.server.controller.predicate.EqualsPredicate;
import org.junit.Test;
/**
* HostGroupInfo unit tests
*/
public class HostGroupInfoTest {
@Test
public void testGetHostGroupName() {
HostGroupInfo group = new HostGroupInfo("test-name");
assertEquals("test-name", group.getHostGroupName());
}
@Test
public void testHostName_isConvertedToLowercase() {
HostGroupInfo group = new HostGroupInfo("test-name");
// single host add
group.addHost("HOST1");
assertEquals(1, group.getHostNames().size());
assertTrue(group.getHostNames().contains("host1"));
}
@Test
public void testSetGetHostNames() {
HostGroupInfo group = new HostGroupInfo("test-name");
// single host add
group.addHost("host1");
assertEquals(1, group.getHostNames().size());
assertTrue(group.getHostNames().contains("host1"));
// add collection of hosts and duplicate host1
group.addHosts(Arrays.asList("host2", "host3", "host1"));
Collection<String> hostNames = group.getHostNames();
assertEquals(3, hostNames.size());
assertTrue(hostNames.contains("host1"));
assertTrue(hostNames.contains("host2"));
assertTrue(hostNames.contains("host3"));
// ensure that a copy was returned
hostNames.clear();
hostNames = group.getHostNames();
assertEquals(3, hostNames.size());
assertTrue(hostNames.contains("host1"));
assertTrue(hostNames.contains("host2"));
assertTrue(hostNames.contains("host3"));
}
@Test
public void testSetGetRequestedHostCount_explicit() {
HostGroupInfo group = new HostGroupInfo("test-name");
assertEquals(0, group.getRequestedHostCount());
group.setRequestedCount(5);
assertEquals(5, group.getRequestedHostCount());
}
@Test
public void testSetGetRequestedHostCount_hostNamesSpecified() {
HostGroupInfo group = new HostGroupInfo("test-name");
assertEquals(0, group.getRequestedHostCount());
group.addHosts(Arrays.asList("host2", "host3", "host1"));
assertEquals(3, group.getRequestedHostCount());
}
@Test
public void testSetGetGetConfiguration() {
Configuration configuration = createNiceMock(Configuration.class);
HostGroupInfo group = new HostGroupInfo("test-name");
assertNull(group.getConfiguration());
group.setConfiguration(configuration);
assertSame(configuration, group.getConfiguration());
}
@Test
public void testSetGetPredicate() throws Exception {
HostGroupInfo group = new HostGroupInfo("test-name");
assertNull(group.getPredicateString());
assertNull(group.getPredicate());
group.setPredicate("Hosts/host_name=awesome.host.com");
assertEquals("Hosts/host_name=awesome.host.com", group.getPredicateString());
assertEquals(new EqualsPredicate<>("Hosts/host_name", "awesome.host.com"), group.getPredicate());
}
@Test(expected=InvalidQueryException.class)
public void testSetPredicate_invalid() throws Exception {
HostGroupInfo group = new HostGroupInfo("test-name");
group.setPredicate("=thisIsNotAPredicate");
}
}