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/*
* Copyright (c) 2016, 2017, 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.
*/
/*
* @test
* @bug 8131023 8167461
* @summary Verify that the user's code can read System.in
* @build KullaTesting TestingInputStream
* @run testng UserInputTest
* @key intermittent
*/
import java.io.IOException;
import java.io.InputStream;
import org.testng.annotations.Test;
@Test
public class UserInputTest extends KullaTesting {
public void testReadInput() {
setInput("AB\n");
assertEval("System.in.read()", "65");
setInput("CD\n");
assertEval("System.in.read()", "67");
}
public void testScanner() {
assertEval("import java.util.Scanner;");
assertEval("Scanner s = new Scanner(System.in);");
setInput("12\n");
assertEval("s.nextInt();", "12");
}
public void testClose() {
setInput(new InputStream() {
private final byte[] data = new byte[] {0, 1, 2};
private int cursor;
@Override public int read() throws IOException {
if (cursor < data.length) {
return data[cursor++];
} else {
return -1;
}
}
});
assertEval("int read;", "0");
assertEval("System.in.read();", "0");
assertEval("System.in.read();", "1");
assertEval("System.in.read();", "2");
assertEval("System.in.read();", "-1");
assertEval("System.in.read();", "-1");
assertEval("System.in.read();", "-1");
}
public void testException() {
setInput(new InputStream() {
private final int[] data = new int[] {0, 1, -2, 2};
private int cursor;
@Override public int read() throws IOException {
if (cursor < data.length) {
int d = data[cursor++];
if (d == (-2)) {
throw new IOException("Crashed");
}
return d;
} else {
return -1;
}
}
});
assertEval("int read;", "0");
assertEval("System.in.read();", "0");
assertEval("System.in.read();", "1");
assertEval("java.io.IOException e;");
assertEval("try { System.in.read(); } catch (java.io.IOException exc) { e = exc; }");
assertEval("e", "java.io.IOException: Crashed");
assertEval("System.in.read();", "2");
assertEval("System.in.read();", "-1");
}
}
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