main/tests/core/src/com/ibm/icu/dev/test/format/PluralRulesTest.java - external/github.com/unicode-org/icu - Git at Google

 /*
  *******************************************************************************
  * Copyright (C) 2007-2010, International Business Machines Corporation and    *
  * others. All Rights Reserved.                                                *
  *******************************************************************************
  */
 package com.ibm.icu.dev.test.format;

 import java.text.ParseException;
 import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.HashSet;
 import java.util.List;
 import java.util.Set;

 import com.ibm.icu.dev.test.TestFmwk;
 import com.ibm.icu.impl.Utility;
 import com.ibm.icu.text.PluralRules;
 import com.ibm.icu.util.ULocale;

 /**
  * @author dougfelt (Doug Felt)
  */
 public class PluralRulesTest extends TestFmwk {
     public static void main(String[] args) throws Exception {
         new PluralRulesTest().run(args);
     }

     private static final String[] parseTestData = {
         "a: n is 1", "a:1",
         "a: n mod 10 is 2", "a:2,12,22",
         "a: n is not 1", "a:0,2,3,4,5",
         "a: n mod 3 is not 1", "a:0,2,3,5,6,8,9",
         "a: n in 2..5", "a:2,3,4,5",
         "a: n within 2..5", "a:2,3,4,5",
         "a: n not in 2..5", "a:0,1,6,7,8",
         "a: n not within 2..5", "a:0,1,6,7,8",
         "a: n mod 10 in 2..5", "a:2,3,4,5,12,13,14,15,22,23,24,25",
         "a: n mod 10 within 2..5", "a:2,3,4,5,12,13,14,15,22,23,24,25",
         "a: n mod 10 is 2 and n is not 12", "a:2,22,32,42",
         "a: n mod 10 in 2..3 or n mod 10 is 5", "a:2,3,5,12,13,15,22,23,25",
         "a: n mod 10 within 2..3 or n mod 10 is 5", "a:2,3,5,12,13,15,22,23,25",
         "a: n is 1 or n is 4 or n is 23", "a:1,4,23",
         "a: n mod 2 is 1 and n is not 3 and n in 1..11", "a:1,5,7,9,11",
         "a: n mod 2 is 1 and n is not 3 and n within 1..11", "a:1,5,7,9,11",
         "a: n mod 2 is 1 or n mod 5 is 1 and n is not 6", "a:1,3,5,7,9,11,13,15,16",
         "a: n in 2..5; b: n in 5..8; c: n mod 2 is 1", "a:2,3,4,5;b:6,7,8;c:1,9,11",
         "a: n within 2..5; b: n within 5..8; c: n mod 2 is 1", "a:2,3,4,5;b:6,7,8;c:1,9,11",
     };

     private String[] getTargetStrings(String targets) {
         List list = new ArrayList(50);
         String[] valSets = Utility.split(targets, ';');
         for (int i = 0; i < valSets.length; ++i) {
             String[] temp = Utility.split(valSets[i], ':');
             String key = temp[0].trim();
             String[] vals = Utility.split(temp[1], ',');
             for (int j = 0; j < vals.length; ++j) {
                 String valString = vals[j].trim();
                 int val = Integer.parseInt(valString);
                 while (list.size() <= val) {
                     list.add(null);
                 }
                 if (list.get(val) != null) {
                     fail("key: " + list.get(val) + " already set for: " + val);
                 }
                 list.set(val, key);
             }
         }

         String[] result = (String[]) list.toArray(new String[list.size()]);
         for (int i = 0; i < result.length; ++i) {
             if (result[i] == null) {
                 result[i] = "other";
             }
         }
         return result;
     }

     private void checkTargets(PluralRules rules, String[] targets) {
         for (int i = 0; i < targets.length; ++i) {
             assertEquals("value " + i, targets[i], rules.select(i));
         }
     }

     public void testParseEmpty() throws ParseException {
         PluralRules rules = PluralRules.parseDescription("a:n");
         assertEquals("empty", "a", rules.select(0));
     }

     public void testParsing() {
         for (int i = 0; i < parseTestData.length; i += 2) {
             String pattern = parseTestData[i];
             String expected = parseTestData[i + 1];

             logln("pattern[" + i + "] " + pattern);
             try {
                 PluralRules rules = PluralRules.createRules(pattern);
                 String[] targets = getTargetStrings(expected);
                 checkTargets(rules, targets);
             } catch (Exception e) {
                 e.printStackTrace();
                 throw new RuntimeException(e.getMessage());
             }
         }
     }

     private static String[][] equalityTestData = {
         { "a: n in 2..3",
             "a: n is 2 or n is 3",
             "a:n is 3 and n in 2..5 or n is 2" },
         { "a: n is 12; b:n mod 10 in 2..3",
           "b: n mod 10 in 2..3 and n is not 12; a: n in 12..12",
           "b: n is 13; a: n in 12..13; b: n mod 10 is 2 or n mod 10 is 3" },
     };

     private void compareEquality(Object[] objects) {
         for (int i = 0; i < objects.length; ++i) {
             Object lhs = objects[i];
             for (int j = i; j < objects.length; ++j) {
                 Object rhs = objects[j];
                 assertEquals("obj " + i + " and " + j, lhs, rhs);
             }
         }
     }

     public void testEquality() {
         for (int i = 0; i < equalityTestData.length; ++i) {
             String[] patterns = equalityTestData[i];
             PluralRules[] rules = new PluralRules[patterns.length];
             for (int j = 0; j < patterns.length; ++j) {
                 rules[j] = PluralRules.createRules(patterns[j]);
             }
             compareEquality(rules);
         }
     }

     public void testBuiltInRules() {
         // spot check
         PluralRules rules = PluralRules.forLocale(ULocale.US);
         assertEquals("us 0", PluralRules.KEYWORD_OTHER, rules.select(0));
         assertEquals("us 1", PluralRules.KEYWORD_ONE, rules.select(1));
         assertEquals("us 2", PluralRules.KEYWORD_OTHER, rules.select(2));

         rules = PluralRules.forLocale(ULocale.JAPAN);
         assertEquals("ja 0", PluralRules.KEYWORD_OTHER, rules.select(0));
         assertEquals("ja 1", PluralRules.KEYWORD_OTHER, rules.select(1));
         assertEquals("ja 2", PluralRules.KEYWORD_OTHER, rules.select(2));

         rules = PluralRules.forLocale(ULocale.createCanonical("ru"));
         assertEquals("ru 0", PluralRules.KEYWORD_MANY, rules.select(0));
         assertEquals("ru 1", PluralRules.KEYWORD_ONE, rules.select(1));
         assertEquals("ru 2", PluralRules.KEYWORD_FEW, rules.select(2));
     }

     public void testFunctionalEquivalent() {
         // spot check
         ULocale unknown = ULocale.createCanonical("zz_ZZ");
         ULocale un_equiv = PluralRules.getFunctionalEquivalent(unknown, null);
         assertEquals("unknown locales have root", ULocale.ROOT, un_equiv);

         ULocale jp_equiv = PluralRules.getFunctionalEquivalent(ULocale.JAPAN, null);
         ULocale cn_equiv = PluralRules.getFunctionalEquivalent(ULocale.CHINA, null);
         assertEquals("japan and china equivalent locales", jp_equiv, cn_equiv);

         boolean[] available = new boolean[1];
         ULocale russia = ULocale.createCanonical("ru_RU");
         ULocale ru_ru_equiv = PluralRules.getFunctionalEquivalent(russia, available);
         assertFalse("ru_RU not listed", available[0]);

         ULocale russian = ULocale.createCanonical("ru");
         ULocale ru_equiv = PluralRules.getFunctionalEquivalent(russian, available);
         assertTrue("ru listed", available[0]);
         assertEquals("ru and ru_RU equivalent locales", ru_ru_equiv, ru_equiv);
     }

     public void testAvailableULocales() {
         ULocale[] locales = PluralRules.getAvailableULocales();
         Set localeSet = new HashSet();
         localeSet.addAll(Arrays.asList(locales));

         assertEquals("locales are unique in list", locales.length, localeSet.size());
     }

     /*
      * Test the method public static PluralRules parseDescription(String description)
      */
     public void TestParseDescription() {
         try {
             if (PluralRules.DEFAULT != PluralRules.parseDescription("")) {
                 errln("PluralRules.parseDescription(String) was suppose "
                         + "to return PluralRules.DEFAULT when String is of " + "length 0.");
             }
         } catch (ParseException e) {
             errln("PluralRules.parseDescription(String) was not suppose " + "to return an exception.");
         }
     }

     /*
      * Tests the method public static PluralRules createRules(String description)
      */
     public void TestCreateRules() {
         try {
             if (PluralRules.createRules(null) != null) {
                 errln("PluralRules.createRules(String) was suppose to "
                         + "return null for an invalid String descrtiption.");
             }
         } catch (Exception e) {
         }
     }

     /*
      * Tests the method public int hashCode()
      */
     public void TestHashCode() {
         PluralRules pr = PluralRules.DEFAULT;
         if (106069776 != pr.hashCode()) {
             errln("PluralRules.hashCode() was suppose to return 106069776 " + "when PluralRules.DEFAULT.");
         }
     }

     /*
      * Tests the method public boolean equals(PluralRules rhs)
      */
     public void TestEquals() {
         PluralRules pr = PluralRules.DEFAULT;

         // Tests when if (rhs == null) is true
         if (pr.equals((PluralRules) null)) {
             errln("PluralRules.equals(PluralRules) was suppose to return false " + "when passing null.");
         }
     }
 }
	/*
	*******************************************************************************
	* Copyright (C) 2007-2010, International Business Machines Corporation and *
	* others. All Rights Reserved. *
	*******************************************************************************
	*/
	package com.ibm.icu.dev.test.format;

	import java.text.ParseException;
	import java.util.ArrayList;
	import java.util.Arrays;
	import java.util.HashSet;
	import java.util.List;
	import java.util.Set;

	import com.ibm.icu.dev.test.TestFmwk;
	import com.ibm.icu.impl.Utility;
	import com.ibm.icu.text.PluralRules;
	import com.ibm.icu.util.ULocale;

	/**
	* @author dougfelt (Doug Felt)
	*/
	public class PluralRulesTest extends TestFmwk {
	public static void main(String[] args) throws Exception {
	new PluralRulesTest().run(args);
	}

	private static final String[] parseTestData = {
	"a: n is 1", "a:1",
	"a: n mod 10 is 2", "a:2,12,22",
	"a: n is not 1", "a:0,2,3,4,5",
	"a: n mod 3 is not 1", "a:0,2,3,5,6,8,9",
	"a: n in 2..5", "a:2,3,4,5",
	"a: n within 2..5", "a:2,3,4,5",
	"a: n not in 2..5", "a:0,1,6,7,8",
	"a: n not within 2..5", "a:0,1,6,7,8",
	"a: n mod 10 in 2..5", "a:2,3,4,5,12,13,14,15,22,23,24,25",
	"a: n mod 10 within 2..5", "a:2,3,4,5,12,13,14,15,22,23,24,25",
	"a: n mod 10 is 2 and n is not 12", "a:2,22,32,42",
	"a: n mod 10 in 2..3 or n mod 10 is 5", "a:2,3,5,12,13,15,22,23,25",
	"a: n mod 10 within 2..3 or n mod 10 is 5", "a:2,3,5,12,13,15,22,23,25",
	"a: n is 1 or n is 4 or n is 23", "a:1,4,23",
	"a: n mod 2 is 1 and n is not 3 and n in 1..11", "a:1,5,7,9,11",
	"a: n mod 2 is 1 and n is not 3 and n within 1..11", "a:1,5,7,9,11",
	"a: n mod 2 is 1 or n mod 5 is 1 and n is not 6", "a:1,3,5,7,9,11,13,15,16",
	"a: n in 2..5; b: n in 5..8; c: n mod 2 is 1", "a:2,3,4,5;b:6,7,8;c:1,9,11",
	"a: n within 2..5; b: n within 5..8; c: n mod 2 is 1", "a:2,3,4,5;b:6,7,8;c:1,9,11",
	};

	private String[] getTargetStrings(String targets) {
	List list = new ArrayList(50);
	String[] valSets = Utility.split(targets, ';');
	for (int i = 0; i < valSets.length; ++i) {
	String[] temp = Utility.split(valSets[i], ':');
	String key = temp[0].trim();
	String[] vals = Utility.split(temp[1], ',');
	for (int j = 0; j < vals.length; ++j) {
	String valString = vals[j].trim();
	int val = Integer.parseInt(valString);
	while (list.size() <= val) {
	list.add(null);
	}
	if (list.get(val) != null) {
	fail("key: " + list.get(val) + " already set for: " + val);
	}
	list.set(val, key);
	}
	}

	String[] result = (String[]) list.toArray(new String[list.size()]);
	for (int i = 0; i < result.length; ++i) {
	if (result[i] == null) {
	result[i] = "other";
	}
	}
	return result;
	}

	private void checkTargets(PluralRules rules, String[] targets) {
	for (int i = 0; i < targets.length; ++i) {
	assertEquals("value " + i, targets[i], rules.select(i));
	}
	}

	public void testParseEmpty() throws ParseException {
	PluralRules rules = PluralRules.parseDescription("a:n");
	assertEquals("empty", "a", rules.select(0));
	}

	public void testParsing() {
	for (int i = 0; i < parseTestData.length; i += 2) {
	String pattern = parseTestData[i];
	String expected = parseTestData[i + 1];

	logln("pattern[" + i + "] " + pattern);
	try {
	PluralRules rules = PluralRules.createRules(pattern);
	String[] targets = getTargetStrings(expected);
	checkTargets(rules, targets);
	} catch (Exception e) {
	e.printStackTrace();
	throw new RuntimeException(e.getMessage());
	}
	}
	}

	private static String[][] equalityTestData = {
	{ "a: n in 2..3",
	"a: n is 2 or n is 3",
	"a:n is 3 and n in 2..5 or n is 2" },
	{ "a: n is 12; b:n mod 10 in 2..3",
	"b: n mod 10 in 2..3 and n is not 12; a: n in 12..12",
	"b: n is 13; a: n in 12..13; b: n mod 10 is 2 or n mod 10 is 3" },
	};

	private void compareEquality(Object[] objects) {
	for (int i = 0; i < objects.length; ++i) {
	Object lhs = objects[i];
	for (int j = i; j < objects.length; ++j) {
	Object rhs = objects[j];
	assertEquals("obj " + i + " and " + j, lhs, rhs);
	}
	}
	}

	public void testEquality() {
	for (int i = 0; i < equalityTestData.length; ++i) {
	String[] patterns = equalityTestData[i];
	PluralRules[] rules = new PluralRules[patterns.length];
	for (int j = 0; j < patterns.length; ++j) {
	rules[j] = PluralRules.createRules(patterns[j]);
	}
	compareEquality(rules);
	}
	}

	public void testBuiltInRules() {
	// spot check
	PluralRules rules = PluralRules.forLocale(ULocale.US);
	assertEquals("us 0", PluralRules.KEYWORD_OTHER, rules.select(0));
	assertEquals("us 1", PluralRules.KEYWORD_ONE, rules.select(1));
	assertEquals("us 2", PluralRules.KEYWORD_OTHER, rules.select(2));

	rules = PluralRules.forLocale(ULocale.JAPAN);
	assertEquals("ja 0", PluralRules.KEYWORD_OTHER, rules.select(0));
	assertEquals("ja 1", PluralRules.KEYWORD_OTHER, rules.select(1));
	assertEquals("ja 2", PluralRules.KEYWORD_OTHER, rules.select(2));

	rules = PluralRules.forLocale(ULocale.createCanonical("ru"));
	assertEquals("ru 0", PluralRules.KEYWORD_MANY, rules.select(0));
	assertEquals("ru 1", PluralRules.KEYWORD_ONE, rules.select(1));
	assertEquals("ru 2", PluralRules.KEYWORD_FEW, rules.select(2));
	}

	public void testFunctionalEquivalent() {
	// spot check
	ULocale unknown = ULocale.createCanonical("zz_ZZ");
	ULocale un_equiv = PluralRules.getFunctionalEquivalent(unknown, null);
	assertEquals("unknown locales have root", ULocale.ROOT, un_equiv);

	ULocale jp_equiv = PluralRules.getFunctionalEquivalent(ULocale.JAPAN, null);
	ULocale cn_equiv = PluralRules.getFunctionalEquivalent(ULocale.CHINA, null);
	assertEquals("japan and china equivalent locales", jp_equiv, cn_equiv);

	boolean[] available = new boolean[1];
	ULocale russia = ULocale.createCanonical("ru_RU");
	ULocale ru_ru_equiv = PluralRules.getFunctionalEquivalent(russia, available);
	assertFalse("ru_RU not listed", available[0]);

	ULocale russian = ULocale.createCanonical("ru");
	ULocale ru_equiv = PluralRules.getFunctionalEquivalent(russian, available);
	assertTrue("ru listed", available[0]);
	assertEquals("ru and ru_RU equivalent locales", ru_ru_equiv, ru_equiv);
	}

	public void testAvailableULocales() {
	ULocale[] locales = PluralRules.getAvailableULocales();
	Set localeSet = new HashSet();
	localeSet.addAll(Arrays.asList(locales));

	assertEquals("locales are unique in list", locales.length, localeSet.size());
	}

	/*
	* Test the method public static PluralRules parseDescription(String description)
	*/
	public void TestParseDescription() {
	try {
	if (PluralRules.DEFAULT != PluralRules.parseDescription("")) {
	errln("PluralRules.parseDescription(String) was suppose "
	+ "to return PluralRules.DEFAULT when String is of " + "length 0.");
	}
	} catch (ParseException e) {
	errln("PluralRules.parseDescription(String) was not suppose " + "to return an exception.");
	}
	}

	/*
	* Tests the method public static PluralRules createRules(String description)
	*/
	public void TestCreateRules() {
	try {
	if (PluralRules.createRules(null) != null) {
	errln("PluralRules.createRules(String) was suppose to "
	+ "return null for an invalid String descrtiption.");
	}
	} catch (Exception e) {
	}
	}

	/*
	* Tests the method public int hashCode()
	*/
	public void TestHashCode() {
	PluralRules pr = PluralRules.DEFAULT;
	if (106069776 != pr.hashCode()) {
	errln("PluralRules.hashCode() was suppose to return 106069776 " + "when PluralRules.DEFAULT.");
	}
	}

	/*
	* Tests the method public boolean equals(PluralRules rhs)
	*/
	public void TestEquals() {
	PluralRules pr = PluralRules.DEFAULT;

	// Tests when if (rhs == null) is true
	if (pr.equals((PluralRules) null)) {
	errln("PluralRules.equals(PluralRules) was suppose to return false " + "when passing null.");
	}
	}
	}