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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
* specific language governing permissions and limitations
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*/
package org.elasticsearch.index.query;
import org.elasticsearch.common.io.stream.BytesStreamOutput;
import org.elasticsearch.common.io.stream.StreamInput;
import org.elasticsearch.common.lucene.search.function.CombineFunction;
import org.elasticsearch.test.ESTestCase;
import static org.hamcrest.Matchers.equalTo;
public class CombineFunctionTests extends ESTestCase {
public void testValidOrdinals() {
assertThat(CombineFunction.MULTIPLY.ordinal(), equalTo(0));
assertThat(CombineFunction.REPLACE.ordinal(), equalTo(1));
assertThat(CombineFunction.SUM.ordinal(), equalTo(2));
assertThat(CombineFunction.AVG.ordinal(), equalTo(3));
assertThat(CombineFunction.MIN.ordinal(), equalTo(4));
assertThat(CombineFunction.MAX.ordinal(), equalTo(5));
}
public void testWriteTo() throws Exception {
try (BytesStreamOutput out = new BytesStreamOutput()) {
CombineFunction.MULTIPLY.writeTo(out);
try (StreamInput in = out.bytes().streamInput()) {
assertThat(in.readVInt(), equalTo(0));
}
}
try (BytesStreamOutput out = new BytesStreamOutput()) {
CombineFunction.REPLACE.writeTo(out);
try (StreamInput in = out.bytes().streamInput()) {
assertThat(in.readVInt(), equalTo(1));
}
}
try (BytesStreamOutput out = new BytesStreamOutput()) {
CombineFunction.SUM.writeTo(out);
try (StreamInput in = out.bytes().streamInput()) {
assertThat(in.readVInt(), equalTo(2));
}
}
try (BytesStreamOutput out = new BytesStreamOutput()) {
CombineFunction.AVG.writeTo(out);
try (StreamInput in = out.bytes().streamInput()) {
assertThat(in.readVInt(), equalTo(3));
}
}
try (BytesStreamOutput out = new BytesStreamOutput()) {
CombineFunction.MIN.writeTo(out);
try (StreamInput in = out.bytes().streamInput()) {
assertThat(in.readVInt(), equalTo(4));
}
}
try (BytesStreamOutput out = new BytesStreamOutput()) {
CombineFunction.MAX.writeTo(out);
try (StreamInput in = out.bytes().streamInput()) {
assertThat(in.readVInt(), equalTo(5));
}
}
}
public void testReadFrom() throws Exception {
try (BytesStreamOutput out = new BytesStreamOutput()) {
out.writeVInt(0);
try (StreamInput in = out.bytes().streamInput()) {
assertThat(CombineFunction.readFromStream(in), equalTo(CombineFunction.MULTIPLY));
}
}
try (BytesStreamOutput out = new BytesStreamOutput()) {
out.writeVInt(1);
try (StreamInput in = out.bytes().streamInput()) {
assertThat(CombineFunction.readFromStream(in), equalTo(CombineFunction.REPLACE));
}
}
try (BytesStreamOutput out = new BytesStreamOutput()) {
out.writeVInt(2);
try (StreamInput in = out.bytes().streamInput()) {
assertThat(CombineFunction.readFromStream(in), equalTo(CombineFunction.SUM));
}
}
try (BytesStreamOutput out = new BytesStreamOutput()) {
out.writeVInt(3);
try (StreamInput in = out.bytes().streamInput()) {
assertThat(CombineFunction.readFromStream(in), equalTo(CombineFunction.AVG));
}
}
try (BytesStreamOutput out = new BytesStreamOutput()) {
out.writeVInt(4);
try (StreamInput in = out.bytes().streamInput()) {
assertThat(CombineFunction.readFromStream(in), equalTo(CombineFunction.MIN));
}
}
try (BytesStreamOutput out = new BytesStreamOutput()) {
out.writeVInt(5);
try (StreamInput in = out.bytes().streamInput()) {
assertThat(CombineFunction.readFromStream(in), equalTo(CombineFunction.MAX));
}
}
}
public void testFromString() {
assertThat(CombineFunction.fromString("multiply"), equalTo(CombineFunction.MULTIPLY));
assertThat(CombineFunction.fromString("replace"), equalTo(CombineFunction.REPLACE));
assertThat(CombineFunction.fromString("sum"), equalTo(CombineFunction.SUM));
assertThat(CombineFunction.fromString("avg"), equalTo(CombineFunction.AVG));
assertThat(CombineFunction.fromString("min"), equalTo(CombineFunction.MIN));
assertThat(CombineFunction.fromString("max"), equalTo(CombineFunction.MAX));
}
}