Skip to content

test: add unit test for Utf8Utils #16029

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Open
LI123456mo wants to merge 1 commit into
base: 3.3
Choose a base branch
from
Open

test: add unit test for Utf8Utils #16029

Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
72 changes: 72 additions & 0 deletions dubbo-common/src/test/java/org/apache/dubbo/common/utils/Utf8UtilsTest.java
View file
Open in desktop
Original file line number Diff line number Diff line change
@@ -0,0 +1,72 @@
/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You 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 org.apache.dubbo.common.utils;

import org.junit.jupiter.api.Test;

import static org.junit.jupiter.api.Assertions.*;

class Utf8UtilsTest {

@Test
void shouldDecodeBasicAscii() {
// Just checking if it handles normal English letters (1 byte each)
byte[] bytes = "Dubbo".getBytes();
char[] dest = new char[bytes.length];

int resultLen = Utf8Utils.decodeUtf8(bytes, 0, bytes.length, dest, 0);

assertEquals(5, resultLen);
assertEquals("Dubbo", new String(dest));
}

@Test
void shouldHandleMultiByteCharacters() {
String input = "你好";
byte[] bytes = input.getBytes();
// Give it more space (6 instead of 2) to match the byte length
char[] dest = new char[bytes.length];

int resultLen = Utf8Utils.decodeUtf8(bytes, 0, bytes.length, dest, 0);

assertEquals(2, resultLen);
// We trim the string to only the parts that were actually filled
assertEquals("你好", new String(dest, 0, resultLen));
}

@Test
void shouldFailOnInvalidInput() {
// Poking the machine with a broken byte it shouldn't recognize
// 0xFE is not a valid UTF-8 start byte
byte[] badBytes = {(byte) 0xFE};
char[] dest = new char[1];

assertThrows(IllegalArgumentException.class, () -> {
Utf8Utils.decodeUtf8(badBytes, 0, 1, dest, 0);
});
}

@Test
void shouldHandleEmptyInput() {
// Making sure it doesn't freak out if we give it nothing
byte[] empty = new byte[0];
char[] dest = new char[0];

int result = Utf8Utils.decodeUtf8(empty, 0, 0, dest, 0);
assertEquals(0, result);
}
}
Loading