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/*
 * 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.mkgmap.osmstyle.actions;

import uk.me.parabola.mkgmap.scan.SyntaxException;

import org.junit.Test;

import static org.junit.Assert.*;

public class PartFilterTest {
       
        /**
         *  * Examples from docu: if the value is "Aa#Bb#Cc#Dd#Ee"
 * part:#:1  returns Aa
 * part:#:-1 returns Ee
 * part:#:2  returns Bb
 * part:#:-2 returns Dd
 * part:#>1  returns Bb#Cc#Dd#Ee#
 * part:#<5  returns Aa#Bb#Cc#Dd#
 * part:#<-1 returns Aa#Bb#Cc#Dd#

         */

        @Test
        public void testNoArg() {
                PartFilter filter = new PartFilter("");
                String s = filter.doFilter("x;y;z", null);
                assertEquals("x", s);
        }
        @Test
        public void testOneArg() {
                PartFilter filter = new PartFilter(";");
                String s = filter.doFilter("x;y;z", null);
                assertEquals("x", s);
        }
        @Test
        public void test2ndArg() {
                PartFilter filter = new PartFilter(":3");
                String s = filter.doFilter("Aa;Bb;Cc;Dd;Ee", null);
                assertEquals("Cc", s);
        }
        @Test
        public void testFirstPart() {
                PartFilter filter = new PartFilter("#:1");
                String s = filter.doFilter("Aa#Bb#Cc#Dd#Ee", null);
                assertEquals("Aa", s);
        }
        @Test
        public void testLastPart() {
                PartFilter filter = new PartFilter("#:-1");
                String s = filter.doFilter("Aa#Bb#Cc#Dd#Ee", null);
                assertEquals("Ee", s);
        }

        @Test
        public void test2ndPart() {
                PartFilter filter = new PartFilter("#:2");
                String s = filter.doFilter("Aa#Bb#Cc#Dd#Ee", null);
                assertEquals("Bb", s);
        }

        @Test
        public void test2ndLastPart() {
                PartFilter filter = new PartFilter("#:-2");
                String s = filter.doFilter("Aa#Bb#Cc#Dd#Ee", null);
                assertEquals("Dd", s);
        }
        @Test
        public void testRestAfter1() {
                PartFilter filter = new PartFilter("#>1");
                String s = filter.doFilter("Aa#Bb#Cc#Dd#Ee", null);
                assertEquals("Bb#Cc#Dd#Ee#", s);
        }
        @Test
        public void testBeforeLast() {
                PartFilter filter = new PartFilter("#<-1");
                String s = filter.doFilter("Aa#Bb#Cc#Dd#Ee", null);
                assertEquals("Aa#Bb#Cc#Dd#", s);
        }
        @Test
        public void testBeforeFifth() {
                PartFilter filter = new PartFilter("#<5");
                String s = filter.doFilter("Aa#Bb#Cc#Dd#Ee", null);
                assertEquals("Aa#Bb#Cc#Dd#", s);
        }
        @Test
        public void testStringContainsNoSeparatorPart1() {
                PartFilter filter = new PartFilter("#:1");
                String s = filter.doFilter("xyz", null);
                assertEquals("xyz", s);
        }
        @Test
        public void testStringContainsNoSeparatorLastPart() {
                PartFilter filter = new PartFilter("#:-1");
                String s = filter.doFilter("xyz", null);
                assertEquals("xyz", s);
        }
        @Test
        public void testStringContainsNoSeparator2ndPart() {
                PartFilter filter = new PartFilter("#:2");
                String s = filter.doFilter("xyz", null);
                assertEquals(null, s);
        }
        @Test
        public void testStringContainsNoSeparator2ndLastPart() {
                PartFilter filter = new PartFilter("#:2");
                String s = filter.doFilter("xyz", null);
                assertEquals(null, s);
        }
       
       
        @Test(expected=SyntaxException.class)
        public void testBadArgNotNum() {
                PartFilter filter = new PartFilter("#<-x");
                filter.doFilter("abc", null);
        }
        @Test(expected=SyntaxException.class)
        public void testBadArgBefore0() {
                PartFilter filter = new PartFilter("#<-0");
                filter.doFilter("abc", null);
        }
        @Test(expected=SyntaxException.class)
        public void testBadArgAfter0() {
                PartFilter filter = new PartFilter("#>-0");
                filter.doFilter("abc", null);
        }
        @Test
        public void testLong1stArg() {
                PartFilter filter = new PartFilter("--->1");
                String s = filter.doFilter("abc---def---ghi", null);
                assertEquals("def---ghi---", s);
        }
//      @Test (expected=SyntaxException.class)
//      public void test1stIsColonArg() {
//              PartFilter filter = new PartFilter("::2");
//              filter.doFilter("abc", null);   }
}