/*
* 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.sshd.common.util.buffer;
import java.io.ByteArrayOutputStream;
import java.io.DataOutputStream;
import java.nio.charset.StandardCharsets;
import org.apache.sshd.common.util.GenericUtils;
import org.apache.sshd.util.test.BaseTestSupport;
import org.junit.FixMethodOrder;
import org.junit.Test;
import org.junit.runners.MethodSorters;
@FixMethodOrder(MethodSorters.NAME_ASCENDING)
public class BufferTest extends BaseTestSupport {
public BufferTest() {
super();
}
@Test
public void testGetLong() throws Exception {
long expected = 1234567890123456789L;
try (ByteArrayOutputStream stream = new ByteArrayOutputStream()) {
try (DataOutputStream ds = new DataOutputStream(stream)) {
ds.writeLong(expected);
}
Buffer buffer = new ByteArrayBuffer(stream.toByteArray());
assertEquals("Mismatched recovered value", expected, buffer.getLong());
}
}
@Test
public void testPutCharsWithNullOrEmptyValue() {
Buffer buffer = new ByteArrayBuffer(Integer.SIZE);
for (char[] chars : new char[][]{null, GenericUtils.EMPTY_CHAR_ARRAY}) {
buffer.putChars(chars);
String value = buffer.getString();
assertEquals("Mismatched value for " + ((chars == null) ? "null" : "empty") + " characters", "", value);
}
}
@Test
public void testPutCharsOnNonEmptyValue() {
String expected = getCurrentTestName();
Buffer buffer = new ByteArrayBuffer(expected.length() + Byte.SIZE);
buffer.putChars(expected.toCharArray());
String actual = buffer.getString();
assertEquals("Mismatched recovered values", expected, actual);
}
@Test
public void testPutAndWipeChars() {
String expected = getCurrentTestName();
char[] chars = expected.toCharArray();
Buffer buffer = new ByteArrayBuffer(chars.length + Byte.SIZE);
buffer.putAndWipeChars(chars);
String actual = buffer.getString();
assertEquals("Mismatched recovered values", expected, actual);
for (int index = 0; index < chars.length; index++) {
assertEquals("Character not wiped at index=" + index, 0, chars[index]);
}
}
@Test
public void testPutAndWipeBytes() {
String expected = getCurrentTestName();
byte[] bytes = expected.getBytes(StandardCharsets.UTF_8);
Buffer buffer = new ByteArrayBuffer(bytes.length + Byte.SIZE);
buffer.putAndWipeBytes(bytes);
String actual = buffer.getString();
assertEquals("Mismatched recovered values", expected, actual);
for (int index = 0; index < bytes.length; index++) {
assertEquals("Value not wiped at index=" + index, 0, bytes[index]);
}
}
}