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/*
* Copyright (C) 2015, Google Inc. and others
*
* This program and the accompanying materials are made available under the
* terms of the Eclipse Distribution License v. 1.0 which is available at
* https://www.eclipse.org/org/documents/edl-v10.php.
*
* SPDX-License-Identifier: BSD-3-Clause
*/
package org.eclipse.jgit.util;
import static java.nio.charset.StandardCharsets.UTF_8;
import static org.junit.Assert.assertEquals;
import java.io.BufferedReader;
import java.io.ByteArrayInputStream;
import java.io.InputStreamReader;
import java.io.Reader;
import java.util.ArrayList;
import java.util.Collection;
import org.eclipse.jgit.lib.Constants;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.junit.runners.Parameterized;
import org.junit.runners.Parameterized.Parameter;
import org.junit.runners.Parameterized.Parameters;
@RunWith(Parameterized.class)
public class IOReadLineTest {
@Parameter(0)
public boolean buffered;
@Parameter(1)
public int sizeHint;
@SuppressWarnings("boxing")
@Parameters(name="buffered={0}, sizeHint={1}")
public static Collection<Object[]> getParameters() {
Boolean[] bv = {false, true};
Integer[] sv = {-1, 0, 1, 2, 3, 4, 64};
Collection<Object[]> params = new ArrayList<>(bv.length * sv.length);
for (boolean b : bv) {
for (Integer s : sv) {
params.add(new Object[]{b, s});
}
}
return params;
}
@Test
public void testReadLine() throws Exception {
Reader r = newReader("foo\nbar\nbaz\n");
assertEquals("foo\n", readLine(r));
assertEquals("bar\n", readLine(r));
assertEquals("baz\n", readLine(r));
assertEquals("", readLine(r));
}
@Test
public void testReadLineNoTrailingNewline() throws Exception {
Reader r = newReader("foo\nbar\nbaz");
assertEquals("foo\n", readLine(r));
assertEquals("bar\n", readLine(r));
assertEquals("baz", readLine(r));
assertEquals("", readLine(r));
}
private String readLine(Reader r) throws Exception {
return IO.readLine(r, sizeHint);
}
private Reader newReader(String in) {
Reader r = new InputStreamReader(
new ByteArrayInputStream(Constants.encode(in)), UTF_8);
if (buffered) {
r = new BufferedReader(r);
}
assertEquals(Boolean.valueOf(buffered),
Boolean.valueOf(r.markSupported()));
return r;
}
}
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