106 lines
4.1 KiB
Java
106 lines
4.1 KiB
Java
/*
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* Copyright 2024 the original author or authors.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* https://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package xyz.zhouxy.plusone.commons.util;
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import static org.junit.jupiter.api.Assertions.assertAll;
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import static org.junit.jupiter.api.Assertions.assertEquals;
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import static org.junit.jupiter.api.Assertions.assertThrows;
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import java.security.SecureRandom;
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import java.util.Random;
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import org.junit.jupiter.api.BeforeAll;
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import org.junit.jupiter.api.Test;
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@SuppressWarnings("null")
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public class RandomToolsTests {
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private static Random random;
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private static SecureRandom secureRandom;
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private static char[] sourceCharactersArray;
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private static String sourceCharactersString;
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@BeforeAll
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public static void setUp() {
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random = new Random();
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secureRandom = new SecureRandom();
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sourceCharactersArray = "ABCDEFGHIJKLMNOPQRSTUVWXYZ".toCharArray();
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sourceCharactersString = "abcdefghijklmnopqrstuvwxyz";
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}
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@Test
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public void randomStr_NullRandom_ThrowsException() {
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assertThrows(IllegalArgumentException.class,
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() -> RandomTools.randomStr(null, sourceCharactersArray, 5));
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assertThrows(IllegalArgumentException.class,
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() -> RandomTools.randomStr(null, sourceCharactersString, 5));
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}
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@Test
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public void randomStr_NullSourceCharacters_ThrowsException() {
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assertThrows(IllegalArgumentException.class, () -> RandomTools.randomStr(random, (char[]) null, 5));
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assertThrows(IllegalArgumentException.class, () -> RandomTools.randomStr(random, (String) null, 5));
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}
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@Test
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public void randomStr_NegativeLength_ThrowsException() {
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assertThrows(IllegalArgumentException.class, () -> RandomTools.randomStr(random, sourceCharactersArray, -1));
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}
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@Test
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public void randomStr_ZeroLength_ReturnsEmptyString() {
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assertAll(
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() -> assertEquals("", RandomTools.randomStr(random, sourceCharactersArray, 0)),
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() -> assertEquals("", RandomTools.randomStr(random, sourceCharactersString, 0)),
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() -> assertEquals("", RandomTools.randomStr(secureRandom, sourceCharactersArray, 0)),
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() -> assertEquals("", RandomTools.randomStr(secureRandom, sourceCharactersString, 0)));
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}
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@Test
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public void randomStr_PositiveLength_ReturnsRandomString() {
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assertAll(
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() -> assertEquals(5, RandomTools.randomStr(random, sourceCharactersArray, 5).length()),
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() -> assertEquals(5, RandomTools.randomStr(random, sourceCharactersString, 5).length()),
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() -> assertEquals(5, RandomTools.randomStr(secureRandom, sourceCharactersArray, 5).length()),
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() -> assertEquals(5, RandomTools.randomStr(secureRandom, sourceCharactersString, 5).length()));
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}
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@Test
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public void randomStr_ReturnsRandomString() {
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String result = RandomTools.randomStr(sourceCharactersArray, 5);
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assertEquals(5, result.length());
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}
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@Test
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public void randomStr_StringSourceCharacters_ReturnsRandomString() {
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String result = RandomTools.randomStr(sourceCharactersString, 5);
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assertEquals(5, result.length());
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}
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@Test
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public void secureRandomStr_ReturnsRandomString() {
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String result = RandomTools.secureRandomStr(sourceCharactersArray, 5);
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assertEquals(5, result.length());
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}
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@Test
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public void secureRandomStr_StringSourceCharacters_ReturnsRandomString() {
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String result = RandomTools.secureRandomStr(sourceCharactersString, 5);
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assertEquals(5, result.length());
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}
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}
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