jdk/test/javax/sound/midi/Sequencer/SequencerCacheValues.java
changeset 41905 e8e5df013c6e
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/jdk/test/javax/sound/midi/Sequencer/SequencerCacheValues.java	Mon Oct 31 14:50:09 2016 +0300
@@ -0,0 +1,106 @@
+/*
+ * Copyright (c) 2002, 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.MidiDevice;
+import javax.sound.midi.MidiSystem;
+import javax.sound.midi.MidiUnavailableException;
+import javax.sound.midi.Sequencer;
+
+/**
+ * @test
+ * @bug 4716740
+ * @summary default sequencer does not set the tempo factor
+ */
+public class SequencerCacheValues {
+
+    static boolean failed = false;
+
+    public static void main(String args[]) throws Exception {
+        Sequencer seq = null;
+        int totalNumberOfSequencers = 0;
+
+        MidiDevice.Info[] infos = MidiSystem.getMidiDeviceInfo();
+        for (int device=0; device<infos.length; device++) {
+            //seq = MidiSystem.getSequencer();
+            MidiDevice dev = MidiSystem.getMidiDevice(infos[device]);
+            if (dev instanceof Sequencer) {
+                seq = (Sequencer) dev;
+                totalNumberOfSequencers++;
+                System.out.println("Opening sequencer "+infos[device]);
+                try {
+                    seq.open();
+                    try {
+                        doTest(seq);
+                    } finally {
+                        if (seq != null) {
+                            seq.close();
+                            seq = null;
+                        }
+                    }
+                } catch (MidiUnavailableException mue) {
+                    System.err.println("MidiUnavailableException was thrown: " + mue);
+                    System.err.println("could not test this sequencer.");
+                }
+            }
+        }
+        if (totalNumberOfSequencers == 0) {
+            System.out.println("No sequencers installed!");
+            failed = true;
+        }
+        if (failed) {
+            throw new Exception("FAILED");
+        } else {
+            System.out.println("test OK");
+        }
+    }
+
+    public static boolean equalsFloat(float f1, float f2) {
+        return (f1-f2<0.0001) && (f2-f1<0.0001);
+    }
+
+    public static void doTest(Sequencer seq) throws Exception {
+        seq.setTempoInMPQ(3.0f);
+        System.out.println("Setting tempo in MPQ to "+3.0f);
+        if (!equalsFloat(seq.getTempoInMPQ(), 3.0f)) {
+            System.err.println("getTempoInMPQ() returns wrong value : "
+                + seq.getTempoInMPQ());
+            failed = true;
+        }
+
+        System.out.println("Setting tempo factor to "+2.0f);
+        seq.setTempoFactor(2.0f);
+        if (!equalsFloat(seq.getTempoFactor(), 2.0f)) {
+            System.err.println("getTempoFactor() returns: " + seq.getTempoFactor());
+            failed = true;
+        }
+
+        float bpmTempo = 120.0f;
+        System.out.println("Setting tempo to "+120.0f+"bpm");
+        seq.setTempoInBPM(bpmTempo);
+        if (!equalsFloat(seq.getTempoInMPQ(), (60000000.0f/seq.getTempoInBPM()))) {
+            System.err.println("getTempoInMPQ() returns: " + seq.getTempoInMPQ());
+            System.err.println("getTempoInBPM() returns: " + seq.getTempoInBPM());
+            failed = true;
+        }
+    }
+}