Subversion Repositories mkgmap

/*
 * Copyright (C) 2011.
 *
 * 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.io.Reader;
import java.io.StringReader;
import java.text.Collator;

import uk.me.parabola.mkgmap.srt.SrtTextReader;

import org.junit.Before;
import org.junit.Test;

import static org.junit.Assert.*;

/**
 * Tests for characters that are expanded into two or more sort
 * positions.
 */
public class SortExpandTest {
        private Sort sort;
        private Collator collator;

        @Before
        public void setUp() throws Exception {
                Reader r = new StringReader("codepage 1252\n" +
                                "code 01\n" +
                                "code a, A; â, Â < b, B\n" +
                                "code c < d < e <f < g < h < i < j < k < l < m < n < o\n" +
                                "code p < q < r,R < s,S < t,T < u < v < w < x < y < z\n" +
                                "expand ß to s s\n");
                SrtTextReader srr = new SrtTextReader(r);
                sort = srr.getSort();
                collator = sort.getCollator();
        }

        @Test
        public void testNormal() {
                checkOrder("asßst", "astst");
                checkOrder("asrst", "asßst");
        }

        /**
         * Expanded letters should sort equal to what they expand to.
         */
        @Test
        public void testAgainstExpansion() {
                assertEquals(0, compareKey("asssst", "asßst"));
        }

        @Test
        public void testExpandSize() {
                // make sure buffer doesn't overflow when all characters are expanded.
                assertEquals(0, compareKey("……………………", "……………………"));
        }

        private int compareKey(String s1, String s2) {
                SortKey<Object> key1 = sort.createSortKey(null, s1);
                SortKey<Object> key2 = sort.createSortKey(null, s2);
                return key1.compareTo(key2);
        }

        @Test
        public void testGreaterThanInExpansion() {
                checkOrder("aßzaa", "astb");
        }

        @Test
        public void testLessThanInExpansion() {
                checkOrder("asrb", "aßaaa");
        }

        /**
         * Check and assert that the second string is greater than the first.
         * @param s First string.
         * @param s1 Second string.
         */
        private void checkOrder(String s, String s1) {
                SortKey<Object> k1 = sort.createSortKey(null, s);
                SortKey<Object> k2 = sort.createSortKey(null, s1);

                assertEquals(1, k2.compareTo(k1));
                assertEquals(-1, k1.compareTo(k2));

                assertEquals(-1, collator.compare(s, s1));
                assertEquals(1, collator.compare(s1, s));
        }
}