jdk/test/javax/sound/midi/Sequencer/Recording.java
changeset 41905 e8e5df013c6e
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/jdk/test/javax/sound/midi/Sequencer/Recording.java	Mon Oct 31 14:50:09 2016 +0300
@@ -0,0 +1,213 @@
+/*
+ * Copyright (c) 2003, 2016, 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 javax.sound.midi.InvalidMidiDataException;
+import javax.sound.midi.MetaMessage;
+import javax.sound.midi.MidiEvent;
+import javax.sound.midi.MidiSystem;
+import javax.sound.midi.Receiver;
+import javax.sound.midi.Sequence;
+import javax.sound.midi.Sequencer;
+import javax.sound.midi.ShortMessage;
+import javax.sound.midi.Track;
+
+/**
+ * @test
+ * @bug 4932841
+ * @key intermittent
+ * @summary Sequencer's recording feature does not work
+ */
+public class Recording {
+
+    public static boolean failed = false;
+    public static boolean passed = false;
+    private static Sequencer seq = null;
+
+    public static void main(String[] args) throws Exception {
+        try {
+            seq = MidiSystem.getSequencer();
+
+            // create an arbitrary sequence which lasts 10 seconds
+            Sequence sequence = createSequence(10, 120, 240);
+
+            seq.setSequence(sequence);
+            out("Set Sequence to Sequencer. Tempo="+seq.getTempoInBPM());
+
+            Track track = sequence.createTrack();
+            int oldSize = track.size();
+            seq.recordEnable(track, -1);
+
+            seq.open();
+
+            // if getReceiver throws Exception, failed!
+            failed = true;
+            Receiver rec = seq.getReceiver();
+
+            // start recording and add various events
+            seq.startRecording();
+
+            // is exception from here on, not failed
+            failed = false;
+
+            if (!seq.isRecording()) {
+                failed = true;
+                throw new Exception("Sequencer did not start recording!");
+            }
+            if (!seq.isRunning()) {
+                failed = true;
+                throw new Exception("Sequencer started recording, but is not running!");
+            }
+
+            // first: add an event to the middle of the sequence
+            ShortMessage msg = new ShortMessage();
+            msg.setMessage(0xC0, 80, 00);
+            rec.send(msg, 5l * 1000l * 1000l);
+
+            Thread.sleep(1000);
+
+            // then add a real-time event
+            msg = new ShortMessage();
+            msg.setMessage(0xC0, 81, 00);
+            long secondEventTick = seq.getTickPosition();
+            rec.send(msg, -1);
+
+            seq.stopRecording();
+            if (seq.isRecording()) {
+                failed = true;
+                throw new Exception("Stopped recording, but Sequencer is still recording!");
+            }
+            if (!seq.isRunning()) {
+                failed = true;
+                throw new Exception("Stopped recording, but Sequencer but is not running anymore!");
+            }
+
+            seq.stop();
+            if (seq.isRunning()) {
+                failed = true;
+                throw new Exception("Stopped Sequencer, but it is still running!");
+            }
+
+            // now examine the contents of the recorded track:
+            // 1) number of events: should be 2 more
+            int newSize = track.size();
+            int addedEventCount = newSize - oldSize;
+
+            out("Added "+addedEventCount+" events to recording track.");
+            if (addedEventCount != 2) {
+                failed = true;
+                throw new Exception("Did not add 2 events!");
+            }
+
+            // 2) the first event should be at roughly "secondEventTick"
+            MidiEvent ev = track.get(0);
+            msg = (ShortMessage) ev.getMessage();
+            out("The first recorded event is at tick position: "+ev.getTick());
+            if (Math.abs(ev.getTick() - secondEventTick) > 1000) {
+                out(" -> but expected something like: "+secondEventTick+"! FAILED.");
+                failed = true;
+            }
+
+            ev = track.get(1);
+            msg = (ShortMessage) ev.getMessage();
+            out("The 2nd recorded event is at tick position: "+ev.getTick());
+            out(" -> sequence's tick length is "+seq.getTickLength());
+            if (Math.abs(ev.getTick() - (sequence.getTickLength() / 2)) > 1000) {
+                out(" -> but expected something like: "+(seq.getTickLength()/2)+"! FAILED.");
+                failed = true;
+            }
+
+            passed = true;
+        } catch (Exception e) {
+            out(e.toString());
+            if (!failed) out("Test not failed.");
+        }
+        if (seq != null) {
+            seq.close();
+        }
+
+        if (failed) {
+            throw new Exception("Test FAILED!");
+        }
+        else if (passed) {
+            out("Test Passed.");
+        }
+    }
+
+    /**
+     * Create a new Sequence for testing.
+     */
+    private static Sequence createSequence(int lengthInSeconds, int tempoInBPM,
+                                           int resolution) {
+        Sequence sequence = null;
+        long lengthInMicroseconds = lengthInSeconds * 1000000;
+        boolean createTempoEvent = true;
+        if (tempoInBPM == 0) {
+            tempoInBPM = 120;
+            createTempoEvent = false;
+            System.out.print("Creating sequence: "+lengthInSeconds+"sec, "
+                             +"resolution="+resolution+" ticks/beat...");
+        } else {
+            System.out.print("Creating sequence: "+lengthInSeconds+"sec, "
+                             +tempoInBPM+" beats/min, "
+                             +"resolution="+resolution+" ticks/beat...");
+        }
+        //long lengthInTicks = (lengthInMicroseconds * resolution) / tempoInBPM;
+        long lengthInTicks = (lengthInMicroseconds * tempoInBPM * resolution) / 60000000l;
+        //out("expected length in ticks: " + lengthInTicks);
+        try {
+            sequence = new Sequence(Sequence.PPQ, resolution);
+            Track track = sequence.createTrack();
+            if (createTempoEvent) {
+                int tempoInMPQ = (int) (60000000l / tempoInBPM);
+                MetaMessage tm = new MetaMessage();
+                byte[] msg = new byte[3];
+                msg[0] = (byte) (tempoInMPQ >> 16);
+                msg[1] = (byte) ((tempoInMPQ >> 8) & 0xFF);
+                msg[2] = (byte) (tempoInMPQ & 0xFF);
+
+                tm.setMessage(0x51 /* Meta Tempo */, msg, msg.length);
+                track.add(new MidiEvent(tm, 0));
+                //out("regtest: tempoInMPQ="+tempoInMPQ);
+                //out("Added tempo event: new size="+track.size());
+            }
+            ShortMessage mm = new ShortMessage();
+            mm.setMessage(0xF6, 0, 0);
+            MidiEvent me = new MidiEvent(mm, lengthInTicks);
+            track.add(me);
+            //out("Added realtime event: new size="+track.size());
+        } catch (InvalidMidiDataException e) {
+            out(e);
+        }
+        out("OK");
+
+        return sequence;
+    }
+
+    private static void out(Throwable t) {
+        t.printStackTrace(System.out);
+    }
+
+    private static void out(String message) {
+        System.out.println(message);
+    }
+}