| /* |
| * Copyright (c) 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. |
| */ |
| |
| import java.io.IOException; |
| import java.io.InputStream; |
| import java.io.OutputStream; |
| import java.io.OutputStreamWriter; |
| import java.io.PrintStream; |
| import java.io.Writer; |
| import java.text.MessageFormat; |
| import java.util.HashMap; |
| import java.util.Locale; |
| import java.util.ResourceBundle; |
| import java.util.logging.Level; |
| import java.util.logging.Logger; |
| import java.util.regex.Matcher; |
| import java.util.regex.Pattern; |
| |
| import jdk.jshell.JShell; |
| import jdk.jshell.tool.JavaShellToolBuilder; |
| |
| public class UITesting { |
| |
| private final boolean laxLineEndings; |
| |
| public UITesting() { |
| this(false); |
| } |
| |
| public UITesting(boolean laxLineEndings) { |
| this.laxLineEndings = laxLineEndings; |
| } |
| |
| protected void doRunTest(Test test) throws Exception { |
| // turn on logging of launch failures |
| Logger.getLogger("jdk.jshell.execution").setLevel(Level.ALL); |
| |
| PipeInputStream input = new PipeInputStream(); |
| StringBuilder out = new StringBuilder(); |
| PrintStream outS = new PrintStream(new OutputStream() { |
| @Override public void write(int b) throws IOException { |
| synchronized (out) { |
| System.out.print((char) b); |
| out.append((char) b); |
| out.notifyAll(); |
| } |
| } |
| @Override public void write(byte[] b, int off, int len) throws IOException { |
| synchronized (out) { |
| String data = new String(b, off, len); |
| System.out.print(data); |
| out.append(data); |
| out.notifyAll(); |
| } |
| } |
| }); |
| Thread runner = new Thread(() -> { |
| try { |
| JavaShellToolBuilder.builder() |
| .in(input, input) |
| .out(outS) |
| .err(outS) |
| .promptCapture(true) |
| .persistence(new HashMap<>()) |
| .locale(Locale.US) |
| .run("--no-startup"); |
| } catch (Exception ex) { |
| throw new IllegalStateException(ex); |
| } |
| }); |
| |
| Writer inputSink = new OutputStreamWriter(input.createOutput()) { |
| @Override |
| public void write(String str) throws IOException { |
| super.write(str); |
| flush(); |
| } |
| }; |
| |
| runner.start(); |
| |
| try { |
| waitOutput(out, "\u0005"); |
| test.test(inputSink, out); |
| } finally { |
| inputSink.write("\003\003/exit"); |
| |
| runner.join(1000); |
| if (runner.isAlive()) { |
| runner.stop(); |
| } |
| } |
| } |
| |
| protected interface Test { |
| public void test(Writer inputSink, StringBuilder out) throws Exception; |
| } |
| |
| private static final long TIMEOUT; |
| |
| static { |
| long factor; |
| |
| try { |
| factor = (long) Double.parseDouble(System.getProperty("test.timeout.factor", "1")); |
| } catch (NumberFormatException ex) { |
| factor = 1; |
| } |
| TIMEOUT = 60_000 * factor; |
| } |
| |
| protected void waitOutput(StringBuilder out, String expected) { |
| expected = expected.replaceAll("\n", laxLineEndings ? "\r?\n" : System.getProperty("line.separator")); |
| Pattern expectedPattern = Pattern.compile(expected, Pattern.DOTALL); |
| synchronized (out) { |
| long s = System.currentTimeMillis(); |
| |
| while (true) { |
| Matcher m = expectedPattern.matcher(out); |
| if (m.find()) { |
| out.delete(0, m.end()); |
| return ; |
| } |
| long e = System.currentTimeMillis(); |
| if ((e - s) > TIMEOUT) { |
| throw new IllegalStateException("Timeout waiting for: " + quote(expected) + ", actual output so far: " + quote(out.toString())); |
| } |
| try { |
| out.wait(TIMEOUT); |
| } catch (InterruptedException ex) { |
| ex.printStackTrace(); |
| } |
| } |
| } |
| } |
| |
| private String quote(String original) { |
| StringBuilder output = new StringBuilder(); |
| |
| for (char c : original.toCharArray()) { |
| if (c < 32) { |
| output.append(String.format("\\u%04X", (int) c)); |
| } else { |
| output.append(c); |
| } |
| } |
| |
| return output.toString(); |
| } |
| |
| protected String clearOut(String what) { |
| return backspace(what.length()) + space(what.length()) + backspace(what.length()); |
| } |
| |
| protected String backspace(int n) { |
| return fill(n, '\010'); |
| } |
| |
| protected String space(int n) { |
| return fill(n, ' '); |
| } |
| |
| private String fill(int n, char c) { |
| StringBuilder result = new StringBuilder(n); |
| |
| while (n-- > 0) |
| result.append(c); |
| |
| return result.toString(); |
| } |
| |
| private final ResourceBundle resources; |
| { |
| resources = ResourceBundle.getBundle("jdk.internal.jshell.tool.resources.l10n", Locale.US, JShell.class.getModule()); |
| } |
| |
| protected String getResource(String key) { |
| return resources.getString(key); |
| } |
| |
| protected String getMessage(String key, Object... args) { |
| return MessageFormat.format(resources.getString(key), args); |
| } |
| private static class PipeInputStream extends InputStream { |
| |
| private static final int INITIAL_SIZE = 128; |
| private int[] buffer = new int[INITIAL_SIZE]; |
| private int start; |
| private int end; |
| private boolean closed; |
| |
| @Override |
| public synchronized int read() throws IOException { |
| if (start == end && !closed) { |
| inputNeeded(); |
| } |
| while (start == end) { |
| if (closed) { |
| return -1; |
| } |
| try { |
| wait(); |
| } catch (InterruptedException ex) { |
| //ignore |
| } |
| } |
| try { |
| return buffer[start]; |
| } finally { |
| start = (start + 1) % buffer.length; |
| } |
| } |
| |
| @Override |
| public synchronized int read(byte[] b, int off, int len) throws IOException { |
| if (b == null) { |
| throw new NullPointerException(); |
| } else if (off < 0 || len < 0 || len > b.length - off) { |
| throw new IndexOutOfBoundsException(); |
| } else if (len == 0) { |
| return 0; |
| } |
| |
| int c = read(); |
| if (c == -1) { |
| return -1; |
| } |
| b[off] = (byte)c; |
| |
| int totalRead = 1; |
| while (totalRead < len && start != end) { |
| int r = read(); |
| if (r == (-1)) |
| break; |
| b[off + totalRead++] = (byte) r; |
| } |
| return totalRead; |
| } |
| |
| protected void inputNeeded() throws IOException {} |
| |
| private synchronized void write(int b) { |
| if (closed) { |
| throw new IllegalStateException("Already closed."); |
| } |
| int newEnd = (end + 1) % buffer.length; |
| if (newEnd == start) { |
| //overflow: |
| int[] newBuffer = new int[buffer.length * 2]; |
| int rightPart = (end > start ? end : buffer.length) - start; |
| int leftPart = end > start ? 0 : start - 1; |
| System.arraycopy(buffer, start, newBuffer, 0, rightPart); |
| System.arraycopy(buffer, 0, newBuffer, rightPart, leftPart); |
| buffer = newBuffer; |
| start = 0; |
| end = rightPart + leftPart; |
| newEnd = end + 1; |
| } |
| buffer[end] = b; |
| end = newEnd; |
| notifyAll(); |
| } |
| |
| @Override |
| public synchronized void close() { |
| closed = true; |
| notifyAll(); |
| } |
| |
| public OutputStream createOutput() { |
| return new OutputStream() { |
| @Override public void write(int b) throws IOException { |
| PipeInputStream.this.write(b); |
| } |
| @Override |
| public void write(byte[] b, int off, int len) throws IOException { |
| for (int i = 0 ; i < len ; i++) { |
| write(Byte.toUnsignedInt(b[off + i])); |
| } |
| } |
| @Override |
| public void close() throws IOException { |
| PipeInputStream.this.close(); |
| } |
| }; |
| } |
| |
| } |
| |
| } |