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/*
* Copyright (c) 2019, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
import org.testng.annotations.DataProvider;
import org.testng.annotations.Test;
import java.io.IOException;
import java.io.InputStream;
import java.nio.ByteBuffer;
import java.util.Arrays;
import java.util.List;
import static org.testng.Assert.assertEquals;
import static org.testng.Assert.assertTrue;
public class STest {
@DataProvider(name = "bufferSizes")
public static Object[][] bufferSizes() {
return new Object[][]{
{ 1},
{ 2},
{ 3},
{ 4},
{16},
{17},
};
}
@DataProvider
public static Object[][] inputStream() {
return new Object[][] {
{ 0, 1},
{ 1, 2},
{ 1, 3},
{ 1, 4},
{ 2, 1},
{ 2, 2},
{ 2, 3},
{ 2, 4},
{ 2, 13},
{ 3, 1},
{ 3, 2},
{ 3, 3},
{ 3, 4},
{ 3, 17},
{ 4, 1},
{ 4, 2},
{ 4, 3},
{ 4, 4},
{ 4, 5},
{ 13, 1},
{ 13, 2},
{ 13, 13},
{ 16, 18},
{ 17, 2},
{255, 1},
{256, 255},
{257, 267},
};
}
@Test
public void testScatter0() {
List<ByteBuffer> buffers = S.scatterBuffer(
ByteBuffer.allocate(0));
assertEquals(buffers.size(), 0);
}
@Test(dataProvider = "bufferSizes")
public void testScatterN(int n) {
final ByteBuffer src = S.bufferOfNRandomBytes(n);
final int srcLength = src.remaining();
ByteBuffer copy = ByteBuffer.wrap(Arrays.copyOf(src.array(),
src.array().length));
List<ByteBuffer> buffers = S.scatterBuffer(src);
int m = 0;
for (ByteBuffer b : buffers) {
m += b.remaining();
while (b.hasRemaining() & copy.hasRemaining()) {
assertEquals(b.get(), copy.get());
}
}
assertEquals(m, srcLength);
}
@Test(dataProvider = "inputStream")
public void testInputStreamOfNReads(int n, int capacity) throws IOException {
InputStream s = S.inputStreamOfNReads(n);
int count = 0;
byte[] b = new byte[capacity];
while (s.read(b) != -1) {
count++;
}
assertEquals(count, n);
assertTrue(s.read() == -1);
assertTrue(s.read(b) == -1);
}
}
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