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// Copyright 2016 Yahoo Inc. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
package com.yahoo.search.yql;
import static org.junit.Assert.assertEquals;
import org.junit.After;
import org.junit.Before;
import org.junit.Test;
import com.yahoo.search.query.parser.Parsable;
import com.yahoo.search.query.parser.ParserEnvironment;
/**
* Check rules for resegmenting words in YQL+ when segmenter is deemed
* incompatible. The class under testing is {@link YqlParser}.
*
* @author <a href="mailto:steinar@yahoo-inc.com">Steinar Knutsen</a>
*/
public class ResegmentingTestCase {
private YqlParser parser;
@Before
public void setUp() throws Exception {
ParserEnvironment env = new ParserEnvironment();
parser = new YqlParser(env);
}
@After
public void tearDown() throws Exception {
parser = null;
}
@Test
public final void testWord() {
assertEquals(
"title:'a b'",
parser.parse(
new Parsable()
.setQuery("select * from sources * where [{\"segmenter\": {\"version\": \"18.47.39\", \"backend\": \"nonexistant\"}}] (title contains \"a b\");"))
.toString());
}
@Test
public final void testPhraseSegment() {
assertEquals(
"title:'c d'",
parser.parse(
new Parsable()
.setQuery("select * from sources * where"
+ " [{\"segmenter\": {\"version\": \"18.47.39\", \"backend\": \"nonexistant\"}}]"
+ " (title contains ([{\"origin\": {\"offset\": 0, \"length\":3, \"original\": \"c d\"}}]"
+ " phrase(\"a\", \"b\")));"))
.toString());
}
@Test
public final void testPhraseInEquiv() {
assertEquals(
"EQUIV title:a title:'c d'",
parser.parse(
new Parsable()
.setQuery("select * from sources * where"
+ " [{\"segmenter\": {\"version\": \"18.47.39\", \"backend\": \"nonexistant\"}}]"
+ " (title contains"
+ " equiv(\"a\","
+ " ([{\"origin\": {\"offset\": 0, \"length\":3, \"original\": \"c d\"}}]\"b\")"
+ ")"
+ ");"))
.toString());
}
@Test
public final void testPhraseSegmentToAndSegment() {
assertEquals(
"SAND title:c title:d",
parser.parse(
new Parsable()
.setQuery("select * from sources * where"
+ " [{\"segmenter\": {\"version\": \"18.47.39\", \"backend\": \"nonexistant\"}}]"
+ " (title contains ([{\"origin\": {\"offset\": 0, \"length\":3, \"original\": \"c d\"}, \"andSegmenting\": true}]"
+ " phrase(\"a\", \"b\")));"))
.toString());
}
@Test
public final void testPhraseSegmentInPhrase() {
assertEquals(
"title:\"a 'c d'\"",
parser.parse(
new Parsable()
.setQuery("select * from sources * where [{\"segmenter\": {\"version\": \"18.47.39\", \"backend\": \"nonexistant\"}}]"
+ " (title contains phrase(\"a\","
+ " ([{\"origin\": {\"offset\": 0, \"length\":3, \"original\": \"c d\"}}]"
+ " phrase(\"e\", \"f\"))));"))
.toString());
}
@Test
public final void testWordNoImplicitTransforms() {
assertEquals(
"title:a b",
parser.parse(
new Parsable()
.setQuery("select * from sources * where [{\"segmenter\": {\"version\": \"18.47.39\", \"backend\": \"nonexistant\"}}] (title contains ([{\"implicitTransforms\": false}]\"a b\"));"))
.toString());
}
@Test
public final void testPhraseSegmentNoImplicitTransforms() {
assertEquals(
"title:'a b'",
parser.parse(
new Parsable()
.setQuery("select * from sources * where"
+ " [{\"segmenter\": {\"version\": \"18.47.39\", \"backend\": \"nonexistant\"}}]"
+ " (title contains ([{\"origin\": {\"offset\": 0, \"length\":3, \"original\": \"c d\"}, \"implicitTransforms\": false}]"
+ " phrase(\"a\", \"b\")));"))
.toString());
}
@Test
public final void testPhraseSegmentToAndSegmentNoImplicitTransforms() {
assertEquals(
"SAND title:a title:b",
parser.parse(
new Parsable()
.setQuery("select * from sources * where"
+ " [{\"segmenter\": {\"version\": \"18.47.39\", \"backend\": \"nonexistant\"}}]"
+ " (title contains ([{\"origin\": {\"offset\": 0, \"length\":3, \"original\": \"c d\"}, \"andSegmenting\": true, \"implicitTransforms\": false}]"
+ " phrase(\"a\", \"b\")));"))
.toString());
}
@Test
public final void testPhraseSegmentInPhraseNoImplicitTransforms() {
assertEquals(
"title:\"a 'e f'\"",
parser.parse(
new Parsable()
.setQuery("select * from sources * where [{\"segmenter\": {\"version\": \"18.47.39\", \"backend\": \"nonexistant\"}}]"
+ " (title contains phrase(\"a\","
+ " ([{\"origin\": {\"offset\": 0, \"length\":3, \"original\": \"c d\"}, \"implicitTransforms\": false}]"
+ " phrase(\"e\", \"f\"))));"))
.toString());
}
}
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