/*
 * Copyright (c) "Neo4j"
 * Neo4j Sweden AB [http://neo4j.com]
 *
 * This file is part of Neo4j.
 *
 * Neo4j is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * 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.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
package org.neo4j.internal.helpers.collection;

import static org.junit.jupiter.api.Assertions.assertEquals;
import static org.junit.jupiter.api.Assertions.assertTrue;

import org.junit.jupiter.api.Test;

class NumberAwareStringComparatorTest {
    @Test
    void shouldHandleSingleNumber() {
        // LESSER
        assertLesser("123", "456");
        assertLesser("123", "1234");
        assertLesser("1", "12");

        // SAME
        assertSame("123", "123");
        assertSame("001", "1");

        // GREATER
        assertGreater("555", "66");
    }

    @Test
    void shouldHandleMixedAlthoughSimilarNumbersAndStrings() {
        assertLesser("same-1-thing-45", "same-12-thing-45");
        assertGreater("same-2-thing-46", "same-2-thing-45");
    }

    @Test
    void shouldHandleMixedAndDifferentNumbersAndStrings() {
        assertLesser("same123thing456", "same123thing456andmore");
        assertGreater("same12", "same1thing456andmore");
    }

    @Test
    void shouldHandleBigNumbers() {
        assertGreater("same-9999999999999999999999999999999999999", "same-9999999999999999999999999999999999998");
        assertLesser("same-9", "same-8999999999999999999999999999999999998");
    }

    private static void assertLesser(String first, String other) {
        assertTrue(compare(first, other) < 0);
    }

    private static void assertSame(String first, String other) {
        assertEquals(0, compare(first, other));
    }

    private static void assertGreater(String first, String other) {
        assertTrue(compare(first, other) > 0);
    }

    private static int compare(String first, String other) {
        return NumberAwareStringComparator.INSTANCE.compare(first, other);
    }
}
