82 lines
2.1 KiB
Java
82 lines
2.1 KiB
Java
/*
|
|
* Copyright 2018 Hippo Seven
|
|
*
|
|
* Licensed under the Apache License, Version 2.0 (the "License");
|
|
* you may not use this file except in compliance with the License.
|
|
* You may obtain a copy of the License at
|
|
*
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
|
*
|
|
* Unless required by applicable law or agreed to in writing, software
|
|
* distributed under the License is distributed on an "AS IS" BASIS,
|
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
* See the License for the specific language governing permissions and
|
|
* limitations under the License.
|
|
*/
|
|
|
|
package com.hippo.util;
|
|
|
|
import static org.junit.Assert.assertTrue;
|
|
|
|
import org.junit.Assert;
|
|
import org.junit.Test;
|
|
|
|
public class NaturalComparatorTest {
|
|
|
|
@Test
|
|
public void testOrder() {
|
|
assertOrder("1", "2");
|
|
assertOrder("2", "11");
|
|
assertOrder("2", "00011");
|
|
|
|
assertOrder("a2", "a11");
|
|
assertOrder("a2a", "a11a");
|
|
}
|
|
|
|
@Test
|
|
public void testEquals() {
|
|
assertEquals("2", "2");
|
|
assertEquals("11", "11");
|
|
assertEquals("a11", "a11");
|
|
assertEquals("a2", "a2");
|
|
assertEquals("a2a", "a2a");
|
|
}
|
|
|
|
@Test
|
|
public void testEmpty() {
|
|
assertOrder("", "1");
|
|
assertEquals("", "");
|
|
}
|
|
|
|
@Test
|
|
public void testNull() {
|
|
assertEquals(null, null);
|
|
assertOrder(null, "1");
|
|
}
|
|
|
|
@Test
|
|
public void testBigNumber() {
|
|
assertOrder("1", "22222222222222222222222222222222222222222222222222222222222222222222222");
|
|
}
|
|
|
|
@Test
|
|
public void testLeadingZero() {
|
|
assertOrder("000000000000000001", "1");
|
|
assertOrder("000000000000000001", "0001");
|
|
assertOrder("00000000000000000", "0");
|
|
assertOrder("00000000000000000", "000");
|
|
}
|
|
|
|
private void assertOrder(String s1, String s2) {
|
|
NaturalComparator comparator = new NaturalComparator();
|
|
assertTrue(comparator.compare(s1, s2) < 0);
|
|
assertTrue(comparator.compare(s2, s1) > 0);
|
|
}
|
|
|
|
private void assertEquals(String s1, String s2) {
|
|
NaturalComparator comparator = new NaturalComparator();
|
|
Assert.assertEquals(0, comparator.compare(s1, s2));
|
|
Assert.assertEquals(0, comparator.compare(s2, s1));
|
|
}
|
|
}
|