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* Licensed to Elasticsearch under one or more contributor
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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.sort;
import org.elasticsearch.common.io.stream.BytesStreamOutput;
import org.elasticsearch.common.io.stream.StreamInput;
import org.elasticsearch.test.ESTestCase;
import static org.hamcrest.Matchers.equalTo;
public class SortOrderTests extends ESTestCase {
/** Check that ordinals remain stable as we rely on them for serialisation. */
public void testDistanceUnitNames() {
assertEquals(0, SortOrder.ASC.ordinal());
assertEquals(1, SortOrder.DESC.ordinal());
}
public void testReadWrite() throws Exception {
for (SortOrder unit : SortOrder.values()) {
try (BytesStreamOutput out = new BytesStreamOutput()) {
unit.writeTo(out);
try (StreamInput in = out.bytes().streamInput()) {
assertThat("Roundtrip serialisation failed.", SortOrder.readFromStream(in), equalTo(unit));
}
}
}
}
public void testFromString() {
for (SortOrder unit : SortOrder.values()) {
assertThat("Roundtrip string parsing failed.", SortOrder.fromString(unit.toString()), equalTo(unit));
}
}
}