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/*
* Copyright (C) 2017-2022 Sebastiano Vigna
*
* 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 it.unimi.dsi.fastutil.io;
import static org.junit.Assert.assertEquals;
import java.io.IOException;
import org.junit.Test;
public class FastByteArrayOutputStreamTest {
@SuppressWarnings("resource")
@Test
public void testWrite() {
FastByteArrayOutputStream fbaos = new FastByteArrayOutputStream();
fbaos.write(1);
fbaos.write(2);
assertEquals(1, fbaos.array[0]);
assertEquals(2, fbaos.array[1]);
assertEquals(2, fbaos.length);
assertEquals(2, fbaos.position());
fbaos.position(1);
fbaos.write(3);
assertEquals(2, fbaos.position());
assertEquals(2, fbaos.length);
assertEquals(3, fbaos.array[1]);
fbaos.write(4);
assertEquals(3, fbaos.length);
assertEquals(4, fbaos.array[2]);
for(int i = 0; i < 14; i++) fbaos.write(i + 10);
assertEquals(17, fbaos.length);
for(int i = 0; i < 14; i++) assertEquals(i + 10, fbaos.array[3 + i]);
}
@SuppressWarnings("resource")
@Test
public void testWriteArray() throws IOException {
FastByteArrayOutputStream fbaos = new FastByteArrayOutputStream();
fbaos.write(1);
fbaos.write(2);
fbaos.write(3);
byte[] a = new byte[14];
for(int i = 0; i < 14; i++) a[i] = (byte)(i + 10);
fbaos.write(a);
assertEquals(17, fbaos.length);
assertEquals(1, fbaos.array[0]);
assertEquals(2, fbaos.array[1]);
assertEquals(3, fbaos.array[2]);
for(int i = 0; i < 14; i++) assertEquals(i + 10, fbaos.array[3 + i]);
fbaos.write(a);
assertEquals(31, fbaos.length);
for(int i = 0; i < 14; i++) assertEquals(i + 10, fbaos.array[17 + i]);
fbaos = new FastByteArrayOutputStream();
fbaos.write(1);
fbaos.write(2);
fbaos.write(3);
fbaos.position(2);
fbaos.write(a);
assertEquals(16, fbaos.length);
assertEquals(1, fbaos.array[0]);
assertEquals(2, fbaos.array[1]);
for(int i = 0; i < 14; i++) assertEquals(i + 10, fbaos.array[2 + i]);
fbaos = new FastByteArrayOutputStream();
fbaos.write(1);
fbaos.write(2);
fbaos.write(3);
fbaos.write(4);
fbaos.position(3);
fbaos.write(a);
assertEquals(17, fbaos.length);
assertEquals(1, fbaos.array[0]);
assertEquals(2, fbaos.array[1]);
assertEquals(3, fbaos.array[2]);
for(int i = 0; i < 14; i++) assertEquals(i + 10, fbaos.array[3 + i]);
}
@SuppressWarnings("resource")
@Test
public void testPositionWrite() {
FastByteArrayOutputStream fbaos = new FastByteArrayOutputStream();
fbaos.position(1);
fbaos.write(1);
assertEquals(2, fbaos.length);
}
@SuppressWarnings("resource")
@Test
public void testPositionWrite2() {
FastByteArrayOutputStream fbaos = new FastByteArrayOutputStream();
fbaos.position(fbaos.array.length + 2);
fbaos.write(1);
}
}
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