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* the Apache License, Version 2.0 (the "License"); you may
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* 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
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package org.elasticsearch.common.lucene.search.function;
import org.apache.lucene.index.LeafReaderContext;
import org.elasticsearch.script.AbstractDoubleSearchScript;
import org.elasticsearch.script.GeneralScriptException;
import org.elasticsearch.script.LeafSearchScript;
import org.elasticsearch.script.SearchScript;
import org.elasticsearch.test.ESTestCase;
import java.io.IOException;
public class ScriptScoreFunctionTests extends ESTestCase {
/**
* Tests https://github.com/elastic/elasticsearch/issues/2426
*/
public void testScriptScoresReturnsNaN() throws IOException {
// script that always returns NaN
ScoreFunction scoreFunction = new ScriptScoreFunction(mockScript("Double.NaN"), new SearchScript() {
@Override
public LeafSearchScript getLeafSearchScript(LeafReaderContext context) throws IOException {
return new AbstractDoubleSearchScript() {
@Override
public double runAsDouble() {
return Double.NaN;
}
@Override
public void setDocument(int doc) {
// do nothing: we are a fake with no lookup
}
};
}
@Override
public boolean needsScores() {
return false;
}
});
LeafScoreFunction leafScoreFunction = scoreFunction.getLeafScoreFunction(null);
GeneralScriptException expected = expectThrows(GeneralScriptException.class, () -> {
leafScoreFunction.score(randomInt(), randomFloat());
});
assertTrue(expected.getMessage().contains("returned NaN"));
}
}