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// Copyright Yahoo. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
package com.yahoo.search.query;
import com.ibm.icu.lang.UScript;
import com.ibm.icu.text.Collator;
import com.ibm.icu.text.RuleBasedCollator;
import com.ibm.icu.util.ULocale;
import com.yahoo.prelude.Index;
import com.yahoo.prelude.IndexFacts;
import com.yahoo.prelude.IndexModel;
import com.yahoo.prelude.SearchDefinition;
import com.yahoo.search.Query;
import com.yahoo.search.searchchain.Execution;
import org.junit.jupiter.api.Disabled;
import org.junit.jupiter.api.Test;
import java.util.Arrays;
import static org.junit.jupiter.api.Assertions.*;
/**
* @author baldersheim
*/
public class SortingTestCase {
@Test
void validAttributeName() {
assertNotNull(Sorting.fromString("a"));
assertNotNull(Sorting.fromString("_a"));
assertNotNull(Sorting.fromString("+a"));
assertNotNull(Sorting.fromString("-a"));
assertNotNull(Sorting.fromString("a.b"));
try {
assertNotNull(Sorting.fromString("-1"));
fail("'-1' should not be allowed as attribute name.");
} catch (IllegalArgumentException e) {
assertEquals(e.getMessage(), "Illegal attribute name '1' for sorting. Requires '[\\[]*[a-zA-Z_][\\.a-zA-Z0-9_-]*[\\]]*'");
} catch (Exception e) {
fail("I only expect 'IllegalArgumentException', not: + " + e.toString());
}
}
@Test
void aliasesAreRecognized() {
Query query = new Query();
var schema = new SearchDefinition("test");
schema.addIndex(new Index("a"));
schema.addAlias("aliasOfA", "a");
Execution execution = new Execution(Execution.Context.createContextStub(new IndexFacts(new IndexModel(schema))));
query.getModel().setExecution(execution);
assertEquals("a", new Sorting("aliasOfA", query).fieldOrders().get(0).getFieldName());
}
@Test
void requireThatChineseSortCorrect() {
requireThatChineseHasCorrectRules(Collator.getInstance(new ULocale("zh")));
Sorting ch = Sorting.fromString("uca(a,zh)");
assertEquals(1, ch.fieldOrders().size());
Sorting.FieldOrder fo = ch.fieldOrders().get(0);
assertTrue(fo.getSorter() instanceof Sorting.UcaSorter);
Sorting.UcaSorter uca = (Sorting.UcaSorter) fo.getSorter();
requireThatChineseHasCorrectRules(uca.getCollator());
Sorting.AttributeSorter sorter = fo.getSorter();
assertTrue(sorter.compare("a", "b") < 0);
assertTrue(sorter.compare("a", "a\u81EA") < 0);
assertTrue(sorter.compare("\u81EA", "a") < 0);
}
private void requireThatArabicHasCorrectRules(Collator col) {
final int reorderCodes [] = {UScript.ARABIC};
assertEquals("6.2.0.0", col.getUCAVersion().toString());
assertEquals("58.0.0.6", col.getVersion().toString());
assertEquals(Arrays.toString(reorderCodes), Arrays.toString(col.getReorderCodes()));
assertTrue(col.compare("a", "b") < 0);
assertTrue(col.compare("a", "aس") < 0);
assertFalse(col.compare("س", "a") < 0);
assertEquals(" [reorder Arab]&ت<<ة<<<ﺔ<<<ﺓ&ي<<ى<<<ﯨ<<<ﯩ<<<ﻰ<<<ﻯ<<<ﲐ<<<ﱝ", ((RuleBasedCollator) col).getRules());
assertFalse(col.compare("س", "a") < 0);
}
private void requireThatChineseHasCorrectRules(Collator col) {
final int reorderCodes [] = {UScript.HAN};
assertEquals("15.0.0.0", col.getUCAVersion().toString());
assertEquals("153.120.43.8", col.getVersion().toString());
assertEquals(Arrays.toString(reorderCodes), Arrays.toString(col.getReorderCodes()));
assertNotEquals("", ((RuleBasedCollator) col).getRules());
}
@Test
@Disabled
void requireThatArabicSortCorrect() {
requireThatArabicHasCorrectRules(Collator.getInstance(new ULocale("ar")));
Sorting ar = Sorting.fromString("uca(a,ar)");
assertEquals(1, ar.fieldOrders().size());
Sorting.FieldOrder fo = ar.fieldOrders().get(0);
assertTrue(fo.getSorter() instanceof Sorting.UcaSorter);
Sorting.UcaSorter uca = (Sorting.UcaSorter) fo.getSorter();
requireThatArabicHasCorrectRules(uca.getCollator());
Sorting.AttributeSorter sorter = fo.getSorter();
assertTrue(sorter.compare("a", "b") < 0);
assertTrue(sorter.compare("a", "aس") < 0);
assertTrue(sorter.compare("س", "a") < 0);
}
}
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