/*
 * Licensed to Elasticsearch under one or more contributor
 * license agreements. See the NOTICE file distributed with
 * this work for additional information regarding copyright
 * ownership. Elasticsearch 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.elasticsearch.monitor.fs;

import org.elasticsearch.common.settings.Settings;
import org.elasticsearch.env.NodeEnvironment;
import org.elasticsearch.test.ESTestCase;
import org.junit.Test;

import java.io.IOException;

import static org.hamcrest.Matchers.*;

public class FsProbeTests extends ESTestCase {

    @Test
    public void testFsInfo() throws IOException {
        try (NodeEnvironment env = newNodeEnvironment()) {
            FsProbe probe = new FsProbe(Settings.EMPTY, env);

            FsInfo stats = probe.stats();
            assertNotNull(stats);
            assertThat(stats.getTimestamp(), greaterThan(0L));

            FsInfo.Path total = stats.getTotal();
            assertNotNull(total);
            assertThat(total.total, greaterThan(0L));
            assertThat(total.free, greaterThan(0L));
            assertThat(total.available, greaterThan(0L));

            for (FsInfo.Path path : stats) {
                assertNotNull(path);
                assertThat(path.getPath(), not(isEmptyOrNullString()));
                assertThat(path.getMount(), not(isEmptyOrNullString()));
                assertThat(path.getType(), not(isEmptyOrNullString()));
                assertThat(path.total, greaterThan(0L));
                assertThat(path.free, greaterThan(0L));
                assertThat(path.available, greaterThan(0L));
            }
        }
    }
}