360 lines
12 KiB
Java
Executable file
360 lines
12 KiB
Java
Executable file
/*
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* The MIT License (MIT)
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*
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* Copyright (c) 2020 Ziver Koc
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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package zutil.io;
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import org.junit.Test;
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import java.io.IOException;
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import java.io.InputStream;
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import static org.junit.Assert.*;
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@SuppressWarnings("resource")
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public class BufferedBoundaryInputStreamTest {
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private void readAndAssertArray(byte[] expected, InputStream in, int readcount) throws IOException {
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byte[] buff = new byte[readcount];
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int n = in.read(buff, 0, readcount);
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if (n < readcount)
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n += in.read(buff, n, readcount-n);
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assertEquals(readcount, n);
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assertArrayEquals(expected, buff);
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}
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private static BufferedBoundaryInputStream getBufferedBoundaryInputStream(String data, String boundary) {
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return getBufferedBoundaryInputStream(data, boundary, -1);
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}
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private static BufferedBoundaryInputStream getBufferedBoundaryInputStream(String data, String boundary, int buffLimit) {
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StringInputStream inin = new StringInputStream(data);
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BufferedBoundaryInputStream in = buffLimit >= 0 ?
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new BufferedBoundaryInputStream(inin, buffLimit) :
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new BufferedBoundaryInputStream(inin);
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in.setBoundary(boundary);
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return in;
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}
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@Test
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public void read_normal() throws IOException {
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BufferedBoundaryInputStream in = getBufferedBoundaryInputStream("aaa#a##aaaaaaa#", "#");
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assertTrue(in.hasNext());
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assertEquals('a', in.read());
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assertEquals('a', in.read());
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assertEquals('a', in.read());
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assertEquals(-1, in.read());
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assertTrue(in.hasNext());
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in.next();
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assertEquals('a', in.read());
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assertEquals(-1, in.read());
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assertTrue(in.hasNext());
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in.next();
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assertEquals(-1, in.read());
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assertTrue(in.hasNext());
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in.next();
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assertEquals('a', in.read());
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assertEquals('a', in.read());
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assertEquals('a', in.read());
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assertEquals('a', in.read());
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assertEquals('a', in.read());
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assertEquals('a', in.read());
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assertEquals('a', in.read());
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assertEquals(-1, in.read());
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assertFalse(in.hasNext());
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in.next();
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assertEquals(-1, in.read());
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assertFalse(in.hasNext());
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}
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@Test
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public void readArr_normal() throws IOException {
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BufferedBoundaryInputStream in = getBufferedBoundaryInputStream("aaa#aaaaaaaaaaaaaaaa#aaaaaaaaaaaaaaa#", "#");
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byte[] buff = new byte[100];
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int n = in.read(buff);
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assertEquals(3, n);
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assertTrue(in.hasNext());
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in.next();
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n = in.read(buff);
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assertEquals(16, n);
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assertTrue(in.hasNext());
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in.next();
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n = in.read(buff);
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assertEquals(15, n);
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assertFalse(in.hasNext());
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in.next();
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n = in.read(buff);
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assertEquals(-1, n);
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}
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@Test
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public void read_multiCharBoundary() throws IOException {
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BufferedBoundaryInputStream in = getBufferedBoundaryInputStream("aaa1234", "1234");
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byte[] buff = new byte[100];
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assertEquals(3, in.read(buff));
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assertEquals(-1, in.read());
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assertFalse(in.hasNext());
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in.next();
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assertEquals(-1, in.read(buff));
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assertFalse(in.hasNext());
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}
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@Test
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public void readArr_multiCharBoundary() throws IOException {
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BufferedBoundaryInputStream in = getBufferedBoundaryInputStream(
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"------------------------------83ff53821b7chello------------------------------83ff53821b7c--",
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"------------------------------83ff53821b7c");
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assertEquals(-1, in.read());
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assertTrue(in.hasNext()); in.next();
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assertEquals("hello", IOUtil.readContentAsString(in));
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assertEquals(-1, in.read());
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assertTrue(in.hasNext()); in.next();
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assertEquals('-', in.read());
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assertEquals('-', in.read());
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assertEquals(-1, in.read());
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assertFalse(in.hasNext());
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in.next();
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assertEquals(-1, in.read());
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assertFalse(in.hasNext());
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}
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@Test
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public void read_startWithBound() throws IOException {
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BufferedBoundaryInputStream in = getBufferedBoundaryInputStream("#aaa", "#");
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assertEquals(-1, in.read());
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}
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@Test
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public void readArr_startWithBound() throws IOException {
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BufferedBoundaryInputStream in = getBufferedBoundaryInputStream("#aaa", "#");
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assertEquals(-1, in.read(new byte[10], 0, 10));
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}
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@Test
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public void read_onlyBoundaries() throws IOException {
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BufferedBoundaryInputStream in = getBufferedBoundaryInputStream("aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "a");
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int n;
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for(n=1; in.hasNext(); n++){
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assertEquals(-1, in.read());
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assertEquals(-1, in.read());
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in.next();
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}
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assertEquals(35, n);
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}
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@Test
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public void readArr_onlyBoundaries() throws IOException {
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BufferedBoundaryInputStream in = getBufferedBoundaryInputStream("aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "a");
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byte[] buff = new byte[100];
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int n;
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for(n=1; in.hasNext(); n++){
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assertEquals(-1, in.read(buff));
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assertEquals(-1, in.read(buff));
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in.next();
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}
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assertEquals(35, n);
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}
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@Test
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public void read_noBounds() throws IOException {
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String data = "1234567891011121314151617181920";
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BufferedBoundaryInputStream in = getBufferedBoundaryInputStream(data, "#");
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int out;
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StringBuilder output = new StringBuilder();
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while ((out = in.read()) != -1){
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output.append((char) out);
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}
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assertEquals(data, output.toString());
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}
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@Test
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public void readArr_noBounds() throws IOException {
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String data = "1234567891011121314151617181920";
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BufferedBoundaryInputStream in = getBufferedBoundaryInputStream(data, "#");
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byte[] buff = new byte[100];
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assertEquals(data.length(), in.read(buff));
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assertEquals(data, new String(buff, 0, data.length()));
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}
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@Test
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public void read_largeData() throws IOException {
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BufferedBoundaryInputStream in = getBufferedBoundaryInputStream(
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"#aaaaaaaaaaaa#aa#aaaaaaaaaaaaaaa#", "#", 10);
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assertEquals(-1, in.read());
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assertTrue(in.hasNext());
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in.next();
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for (int i=0; i<12; ++i)
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assertEquals('a', in.read());
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assertEquals(-1, in.read());
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assertTrue(in.hasNext());
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in.next();
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assertEquals('a', in.read());
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assertEquals('a', in.read());
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assertTrue(in.hasNext());
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in.next();
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for (int i=0; i<15; ++i)
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assertEquals('a', in.read());
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assertEquals(-1, in.read());
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assertFalse(in.hasNext());
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}
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@Test
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public void read_largeDataOnlyNext() throws IOException {
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BufferedBoundaryInputStream in = getBufferedBoundaryInputStream(
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"#aaaaaaaaaaaa#aa#aaaaaaaaaaaaaaa#", "#", 10);
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in.next();
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for (int i=0; i<12; ++i)
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assertEquals('a', in.read());
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assertEquals(-1, in.read());
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in.next();
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assertEquals('a', in.read());
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assertEquals('a', in.read());
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in.next();
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for (int i=0; i<15; ++i)
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assertEquals('a', in.read());
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assertEquals(-1, in.read());
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}
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@Test
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public void readArr_largeData() throws IOException {
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BufferedBoundaryInputStream in = getBufferedBoundaryInputStream(
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"aaaaaaaaaaaa#aa#aaaaaaaaaaaaaaa#", "#", 10);
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byte[] buff = new byte[100];
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int n;
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assertTrue(in.hasNext());
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n = in.read(buff) + in.read(buff);
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assertEquals(12, n);
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assertEquals(-1, in.read(buff));
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assertTrue(in.hasNext());
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in.next();
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assertEquals(2, in.read(buff));
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assertTrue(in.hasNext());
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in.next();
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n = in.read(buff) + in.read(buff) + in.read(buff);
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assertEquals(15, n);
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assertEquals(-1, in.read());
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assertFalse(in.hasNext());
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}
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@Test
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public void readArr_splitBoundary() throws IOException {
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BufferedBoundaryInputStream in = getBufferedBoundaryInputStream(
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"aaaaaaaa####aaaaaaaa", "####", 10);
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byte[] buff = new byte[10];
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assertEquals(4, in.read(buff, 0 , 4));
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int n = 0;
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n += in.read(buff, 0 , 10);
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n += in.read(buff, 0 , 10);
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assertEquals(4, n);
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assertEquals(-1, in.read(buff, 0 , 6));
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in.next();
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assertEquals(6, in.read(buff, 0 , 6));
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}
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@Test
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public void read_mark() throws IOException {
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BufferedBoundaryInputStream in = getBufferedBoundaryInputStream(
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"0123456789#abcdefghijklmn#opqrstuvwxyz", "#");
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in.read();in.read();in.read();
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assertEquals('3', in.read());
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in.mark(10); // mark '4'
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assertEquals('4', in.read());
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in.read();in.read();in.read();
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assertEquals('8', in.read());
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in.reset(); // go back to '4'
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assertEquals('4', in.read());
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}
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@Test
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public void readArr_mark() throws IOException {
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BufferedBoundaryInputStream in = getBufferedBoundaryInputStream(
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"0123456789#abcdefghijklmn#opqrstuvwxyz", "#");
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readAndAssertArray(new byte[]{'0','1','2','3'}, in, 4);
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in.mark(10); // mark '4'
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readAndAssertArray(new byte[]{'4','5','6','7'}, in, 4);
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readAndAssertArray(new byte[]{'8','9'}, in, 2);
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in.reset(); // go back to '4'
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readAndAssertArray(new byte[]{'4','5','6','7'}, in, 4);
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}
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@Test
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public void readArr_markBoundary() throws IOException {
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BufferedBoundaryInputStream in = getBufferedBoundaryInputStream(
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"0123456789#abcdefghijklmn#opqrstuvwxyz", "#");
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readAndAssertArray(new byte[]{'0','1','2','3'}, in, 4);
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in.mark(30); // mark '4'
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readAndAssertArray(new byte[]{'4','5','6','7','8','9'}, in, 6);
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assertEquals(-1, in.read()); // boundary
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in.next();
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readAndAssertArray(new byte[]{'a','b'}, in, 2);
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in.reset(); // go back to '4'
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readAndAssertArray(new byte[]{'4','5','6','7','8','9'}, in, 6);
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assertEquals(-1, in.read()); // is boundary still there
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}
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@Test
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public void readArr_markLargeData() throws IOException {
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BufferedBoundaryInputStream in = getBufferedBoundaryInputStream(
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"0123456789#abcdefghijklmn#opqrstuvwxyz", "#", 10);
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readAndAssertArray(new byte[]{'0','1','2','3'}, in, 4);
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in.mark(30); // mark '4'
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readAndAssertArray(new byte[]{'4','5','6','7','8','9'}, in, 6);
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assertEquals(-1, in.read()); // boundary
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in.next();
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readAndAssertArray(new byte[]{'a','b','c','d','e','f'}, in, 6);
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try{
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in.reset(); // Exception we have passed buffer limit
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fail();
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} catch (IOException e){}
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readAndAssertArray(new byte[]{'g','h'}, in, 2);
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}
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}
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