server/src/test/java/org/elasticsearch/health/node/DiskHealthIndicatorServiceTests.java
import org.elasticsearch.xcontent.ToXContent;
import org.elasticsearch.xcontent.XContentBuilder;
import org.elasticsearch.xcontent.XContentFactory;
import org.elasticsearch.xcontent.XContentParser;
import org.elasticsearch.xcontent.XContentType;
import java.io.IOException;
import java.util.Collection;
import java.util.Collections;
import java.util.HashMap;
import java.util.HashSet;
import java.util.List;
import java.util.Map;
import java.util.Set;
import java.util.UUID;
import java.util.function.Function;
import java.util.stream.Collectors;
import java.util.stream.Stream;
import static org.elasticsearch.cluster.metadata.IndexMetadata.SETTING_CREATION_DATE;
import static org.elasticsearch.cluster.metadata.IndexMetadata.SETTING_NUMBER_OF_REPLICAS;
import static org.elasticsearch.cluster.metadata.IndexMetadata.SETTING_NUMBER_OF_SHARDS;
import static org.elasticsearch.cluster.metadata.IndexMetadata.SETTING_VERSION_CREATED;
import static org.hamcrest.Matchers.containsInAnyOrder;
import static org.hamcrest.Matchers.containsString;
import static org.hamcrest.Matchers.equalTo;
import static org.hamcrest.Matchers.is;
import static org.hamcrest.Matchers.iterableWithSize;
import static org.hamcrest.Matchers.startsWith;
import static org.mockito.Mockito.mock;
import static org.mockito.Mockito.when;
public class DiskHealthIndicatorServiceTests extends ESTestCase {