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* 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
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package org.elasticsearch.search.aggregations;
import org.elasticsearch.common.io.stream.BytesStreamOutput;
import org.elasticsearch.common.io.stream.StreamInput;
import org.elasticsearch.search.aggregations.Aggregator.SubAggCollectionMode;
import org.elasticsearch.test.ESTestCase;
import java.io.IOException;
import static org.hamcrest.Matchers.containsString;
import static org.hamcrest.Matchers.equalTo;
public class SubAggCollectionModeTests extends ESTestCase {
public void testValidOrdinals() {
assertThat(SubAggCollectionMode.DEPTH_FIRST.ordinal(), equalTo(0));
assertThat(SubAggCollectionMode.BREADTH_FIRST.ordinal(), equalTo(1));
}
public void testwriteTo() throws Exception {
try (BytesStreamOutput out = new BytesStreamOutput()) {
SubAggCollectionMode.DEPTH_FIRST.writeTo(out);
try (StreamInput in = out.bytes().streamInput()) {
assertThat(in.readVInt(), equalTo(0));
}
}
try (BytesStreamOutput out = new BytesStreamOutput()) {
SubAggCollectionMode.BREADTH_FIRST.writeTo(out);
try (StreamInput in = out.bytes().streamInput()) {
assertThat(in.readVInt(), equalTo(1));
}
}
}
public void testReadFrom() throws Exception {
try (BytesStreamOutput out = new BytesStreamOutput()) {
out.writeVInt(0);
try (StreamInput in = out.bytes().streamInput()) {
assertThat(SubAggCollectionMode.readFromStream(in), equalTo(SubAggCollectionMode.DEPTH_FIRST));
}
}
try (BytesStreamOutput out = new BytesStreamOutput()) {
out.writeVInt(1);
try (StreamInput in = out.bytes().streamInput()) {
assertThat(SubAggCollectionMode.readFromStream(in), equalTo(SubAggCollectionMode.BREADTH_FIRST));
}
}
}
public void testInvalidReadFrom() throws Exception {
try (BytesStreamOutput out = new BytesStreamOutput()) {
out.writeVInt(randomIntBetween(2, Integer.MAX_VALUE));
try (StreamInput in = out.bytes().streamInput()) {
SubAggCollectionMode.readFromStream(in);
fail("Expected IOException");
} catch(IOException e) {
assertThat(e.getMessage(), containsString("Unknown SubAggCollectionMode ordinal ["));
}
}
}
}