com.spotify.helios.system.CliHostListTest.java Source code

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Here is the source code for com.spotify.helios.system.CliHostListTest.java

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/*
 * Copyright (c) 2014 Spotify AB.
 *
 * 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.
 */

package com.spotify.helios.system;

import com.google.common.collect.ImmutableList;

import com.fasterxml.jackson.core.type.TypeReference;
import com.spotify.helios.Polling;
import com.spotify.helios.agent.AgentMain;
import com.spotify.helios.client.HeliosClient;
import com.spotify.helios.common.Json;
import com.spotify.helios.common.descriptors.HostStatus;

import net.sourceforge.argparse4j.inf.ArgumentParserException;

import org.junit.Before;
import org.junit.Test;

import java.util.Map;
import java.util.concurrent.Callable;

import static com.spotify.helios.common.descriptors.HostStatus.Status.UP;
import static java.util.concurrent.TimeUnit.SECONDS;
import static org.hamcrest.Matchers.equalTo;
import static org.junit.Assert.assertThat;

public class CliHostListTest extends SystemTestBase {

    private String hostname1;
    private String hostname2;

    @Before
    public void initialize() throws Exception {
        startDefaultMaster();

        // Wait for master to come up
        Polling.await(LONG_WAIT_SECONDS, SECONDS, new Callable<String>() {
            @Override
            public String call() throws Exception {
                final String output = cli("masters");
                return output.contains(masterName()) ? output : null;
            }
        });

        hostname1 = testHost() + "a";
        hostname2 = testHost() + "b";

        startDefaultAgent(hostname1);
        final AgentMain agent2 = startDefaultAgent(hostname2);

        // Wait for both agents to come up
        awaitHostRegistered(hostname1, LONG_WAIT_SECONDS, SECONDS);
        awaitHostStatus(hostname2, UP, LONG_WAIT_SECONDS, SECONDS);

        // Stop agent2
        agent2.stopAsync().awaitTerminated();
    }

    @Test
    public void testHostListJson() throws Exception {
        final String jsonOutput = cli("hosts", "-f", "--json");
        final Map<String, HostStatus> statuses = Json.readUnchecked(jsonOutput,
                new TypeReference<Map<String, HostStatus>>() {
                });
        final HeliosClient client = defaultClient();
        final Map<String, HostStatus> expectedStatuses = client.hostStatuses(ImmutableList.of(hostname1, hostname2))
                .get();
        assertThat(expectedStatuses, equalTo(statuses));
    }

    @Test
    public void testStatusFilter() throws Exception {
        String jsonOutput = cli("hosts", "-f", "--json", "--status", "UP");
        Map<String, HostStatus> statuses = Json.readUnchecked(jsonOutput,
                new TypeReference<Map<String, HostStatus>>() {
                });
        final HeliosClient client = defaultClient();
        Map<String, HostStatus> expectedStatuses = client.hostStatuses(ImmutableList.of(hostname1)).get();
        assertThat(expectedStatuses, equalTo(statuses));

        jsonOutput = cli("hosts", "-f", "--json", "--status", "DOWN");
        statuses = Json.readUnchecked(jsonOutput, new TypeReference<Map<String, HostStatus>>() {
        });
        expectedStatuses = client.hostStatuses(ImmutableList.of(hostname2)).get();
        assertThat(expectedStatuses, equalTo(statuses));
    }

    @Test(expected = ArgumentParserException.class)
    public void testInvalidStatus() throws Exception {
        cli("hosts", "-f", "--json", "--status", "up");
    }
}