/*
* Copyright (C) 2014.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 3 or
* version 2 as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*/
package uk.me.parabola.imgfmt.app.srt;
import java.text.Collator;
import uk.me.parabola.mkgmap.srt.SrtTextReader;
import org.junit.Before;
import org.junit.Test;
import static org.junit.Assert.*;
public class SrtCollatorTest {
private Collator collator;
@Before
public void setUp() {
Sort sort = SrtTextReader.sortForCodepage(1252);
collator = sort.getCollator();
}
/**
* Test primary strength comparisons.
*/
@Test
public void testPrimary() {
collator.setStrength(Collator.PRIMARY);
assertEquals("prim: different case", 0, collator.compare("AabBb", "aabbb"));
assertEquals("prim: different case", 0, collator.compare("aabBb", "aabbb"));
assertEquals("prim: different length", -1, collator.compare("AabB", "aabbb"));
assertEquals("prim: different letter", -1, collator.compare("aaac", "aaad"));
assertEquals("prim: different letter", 1, collator.compare("aaae", "aaad"));
assertEquals(0, collator.compare("aaaa", "aaaa"));
assertEquals(0, collator.compare("aáÄâ", "aaaa"));
}
@Test
public void testSecondary() {
collator.setStrength(Collator.SECONDARY);
assertEquals(0, collator.compare("AabBb", "aabbb"));
assertEquals(0, collator.compare("aabBb", "aabBb"));
assertEquals(0, collator.compare("aabbB", "aabBb"));
assertEquals(1, collator.compare("aáÄâ", "aaaa"));
assertEquals("prim len diff", -1, collator.compare("aáÄâ", "aaaaa"));
assertEquals(-1, collator.compare("aáÄâa", "aaaab"));
}
@Test
public void testTertiary() {
collator.setStrength(Collator.TERTIARY);
assertEquals("prim: different case", 1, collator.compare("AabBb", "aabbb"));
assertEquals(1, collator.compare("AabBb", "aabbb"));
assertEquals(0, collator.compare("aabBb", "aabBb"));
assertEquals(-1, collator.compare("aabbB", "aabBb"));
assertEquals(-1, collator.compare("aAbb", "aabbb"));
assertEquals(1, collator.compare("t", "a"));
assertEquals(1, collator.compare("ß", "a"));
assertEquals(-1, collator.compare("ESA", "Eß"));
assertEquals(-1, collator.compare(":.e", "\u007fæ"));
assertEquals(-1, collator.compare(";œ", ";Œ"));
assertEquals(-1, collator.compare("œ;", "Œ;"));
}
/**
* Test that ignorable characters do not affect the result in otherwise identical strings.
*/
@Test
public void testIgnoreable() throws Exception {
assertEquals("ignorable at beginning", 0, collator.compare("\u0008fred", "fred"));
assertEquals("ignorable at end", 0, collator.compare("fred\u0008", "fred"));
assertEquals("ignorable in middle", 0, collator.compare("fr\u0008ed", "fred"));
assertEquals(1, collator.compare("\u0001A", "A\u0008"));
collator.setStrength(Collator.PRIMARY);
assertEquals("prim: different case", 0, collator.compare("AabBb\u0008", "aabbb"));
}
@Test
public void testSecondaryIgnorable() {
assertEquals(-1, collator.compare("A", "A\u0001"));
}
@Test
public void testLengths() {
assertEquals(-1, collator.compare("-Û", "-ü:X"));
assertEquals(-1, collator.compare("-Û", "-Û$"));
assertEquals(-1, collator.compare("-ü:X", "-Û$"));
assertEquals(-1, collator.compare("–", "–X"));
assertEquals(1, collator.compare("–TÛ‡²", "–"));
}
@Test
public void testSpaces() {
assertEquals(1, collator.compare("øþõ Ñ", "õþO"));
}
/**
* Test using the java collator, to experiment. Note that our implementation is not
* meant to be identical to the java one.
*/
@Test
public void testJavaRules() {
Collator collator = Collator.getInstance();
// Testing ignorable
assertEquals(0, collator.compare("\u0001fred", "fred"));
assertEquals(0, collator.compare("fre\u0001d", "fred"));
collator.setStrength(Collator.PRIMARY);
assertEquals("prim: different case", 0, collator.compare("AabBb", "aabbb"));
assertEquals("prim: different case", 0, collator.compare("aabBb", "aabbb"));
assertEquals("prim: different length", -1, collator.compare("AabB", "aabbb"));
assertEquals("prim: different letter", -1, collator.compare("aaac", "aaad"));
assertEquals("prim: different letter", 1, collator.compare("aaae", "aaad"));
assertEquals(0, collator.compare("aaaa", "aaaa"));
assertEquals(0, collator.compare("aáÄâ", "aaaa"));
collator.setStrength(Collator.SECONDARY);
assertEquals(0, collator.compare("AabBb", "aabbb"));
assertEquals(0, collator.compare("aabBb", "aabBb"));
assertEquals(0, collator.compare("aabbB", "aabBb"));
assertEquals(1, collator.compare("aáÄâ", "aaaa"));
assertEquals("prim len diff", -1, collator.compare("aáÄâ", "aaaaa"));
assertEquals(-1, collator.compare("aáÄâa", "aaaab"));
collator.setStrength(Collator.TERTIARY);
assertEquals("prim: different case", 1, collator.compare("AabBb", "aabbb"));
assertEquals(1, collator.compare("AabBb", "aabbb"));
assertEquals(0, collator.compare("aabBb", "aabBb"));
assertEquals(-1, collator.compare("aabbB", "aabBb"));
assertEquals(-1, collator.compare("aAbb", "aabbb"));
assertEquals(1, collator.compare("t", "a"));
}
}