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/*
 * Copyright (c) 2009, Chris Miller
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 3 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.splitter;

import static org.junit.Assert.assertEquals;

import org.junit.Test;

/**
 * Unit tests for the rounding up/down utility methods.
 */

public class ConvertTest {
        @Test
        public void testParseDouble() {
                parse("0");
                parse("1");
                parse("0.0000012345");
                parse("12.");
                parse(".12");
                parse("1.123");
                parse("1.123456789");
                parse("1.1234567891");
                parse("1.12345678912");
                parse("1.123456789123");
                parse("1.1234567891234");
                parse("1.12345678912345");
                parse("1.123456789123456");
                parse("1.1234567891234568");  // Note that this is in the grey area - it's at the limit of double precision
                parse("1.12345678912345678");
                parse("1.123456789012345678");
                parse("120.12345678901234567");
                parse("120.123456789012345678");
                parse("120.1234567890123456789");
                parse("120.12345678901234567892");
                parse("120.123456789012345678923");
                parse("120.1234567890123456789234");
                parse("120.12345678901234567892345");
                parse("120.123456789012345678923456");
                parse("120.1234567890123456789234567");
                parse("120.12345678901234567892345678");
                parse("120.123456789012345678923456789");
                parse("120.1234567890123456789012345678");
        }

        private static void parse(String dbl) {
                final double epsilon = 3.0e-10;
                assertEquals("Double parsing failed when parsing " + dbl, Double.parseDouble(dbl), Convert.parseDouble(dbl),
                                epsilon);
        }
}