jdk-sandbox: comparison jdk/test/javax/sound/midi/Sequencer/SequencerState.java

equal deleted inserted replaced

-:524d908e49ea
+:e8e5df013c6e
+/*
+* 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 java.io.ByteArrayInputStream;
+import java.io.ByteArrayOutputStream;
+import java.io.IOException;
+import java.io.InputStream;
+import javax.sound.midi.InvalidMidiDataException;
+import javax.sound.midi.MidiDevice;
+import javax.sound.midi.MidiSystem;
+import javax.sound.midi.Sequence;
+import javax.sound.midi.Sequencer;
+/**
+* @test
+* @bug 4913027
+* @summary several Sequencer methods should specify behaviour on closed Sequencer
+*/
+public class SequencerState {
+private static boolean hasSequencer() {
+try {
+Sequencer seq = MidiSystem.getSequencer();
+if (seq != null) {
+seq.open();
+seq.close();
+return true;
+}
+} catch (Exception e) {}
+System.out.println("No sequencer available! Cannot execute test.");
+return false;
+}
+public static void main(String[] args) throws Exception {
+out("4913027: several Sequencer methods should should specify behaviour on closed Sequencer");
+if (hasSequencer()) {
+boolean passed = testAll();
+if (passed) {
+out("Test PASSED.");
+} else {
+throw new Exception("Test FAILED.");
+}
+}
+}
+/**
+* Execute the test on all available Sequencers.
+*
+* @return true if the test passed for all Sequencers, false otherwise
+*/
+private static boolean testAll() throws Exception {
+boolean result = true;
+MidiDevice.Info[] devices = MidiSystem.getMidiDeviceInfo();
+for (int i = 0; i < devices.length; i++) {
+MidiDevice device = MidiSystem.getMidiDevice(devices[i]);
+if (device instanceof Sequencer) {
+result &= testSequencer((Sequencer) device);
+}
+}
+return result;
+}
+/**
+* Execute the test on the passed Sequencer.
+*
+* @return true if the test is passed this Sequencer, false otherwise
+*/
+private static boolean testSequencer(Sequencer seq) throws Exception {
+boolean result = true;
+out("testing: " + seq);
+/* test calls in closed state.
+*/
+if (seq.isOpen()) {
+out("Sequencer is already open, cannot test!");
+return result;
+}
+try {
+seq.start();
+out("closed state: start() does not throw IllegalStateException!");
+result = false;
+} catch (IllegalStateException e) {
+}
+try {
+seq.stop();
+out("closed state: stop() does not throw IllegalStateException!");
+result = false;
+} catch (IllegalStateException e) {
+}
+try {
+seq.startRecording();
+out("closed state: startRecording() does not throw IllegalStateException!");
+result = false;
+} catch (IllegalStateException e) {
+}
+try {
+seq.stopRecording();
+out("closed state: stopRecording() does not throw IllegalStateException!");
+result = false;
+} catch (IllegalStateException e) {
+}
+Sequence sequence = createSequence();
+if (sequence == null) {
+out("created Sequence is null, cannot test!");
+return result;
+}
+try {
+seq.setSequence(sequence);
+} catch (IllegalStateException e) {
+out("closed state: setSequence(Sequence) throws IllegalStateException!");
+result = false;
+}
+InputStream inputStream = createSequenceInputStream();
+if (inputStream == null) {
+out("created InputStream is null, cannot test!");
+return result;
+}
+try {
+seq.setSequence(inputStream);
+} catch (IllegalStateException e) {
+out("closed state: setSequence(InputStream) throws IllegalStateException!");
+result = false;
+}
+try {
+seq.getSequence();
+} catch (IllegalStateException e) {
+out("closed state: getSequence() throws IllegalStateException!");
+result = false;
+}
+/* test calls in open state.
+*/
+seq.open();
+if (! seq.isOpen()) {
+out("Sequencer is not open, cannot test!");
+return result;
+}
+try {
+seq.start();
+} catch (IllegalStateException e) {
+out("open state: start() throws IllegalStateException!");
+result = false;
+}
+try {
+seq.stop();
+} catch (IllegalStateException e) {
+out("open state: stop() throws IllegalStateException!");
+result = false;
+}
+try {
+seq.startRecording();
+} catch (IllegalStateException e) {
+out("open state: startRecording() throws IllegalStateException!");
+result = false;
+}
+try {
+seq.stopRecording();
+} catch (IllegalStateException e) {
+out("open state: stopRecording() throws IllegalStateException!");
+result = false;
+}
+sequence = createSequence();
+if (sequence == null) {
+out("created Sequence is null, cannot test!");
+return result;
+}
+try {
+seq.setSequence(sequence);
+} catch (IllegalStateException e) {
+out("open state: setSequence(Sequence) throws IllegalStateException!");
+result = false;
+}
+inputStream = createSequenceInputStream();
+if (inputStream == null) {
+out("created InputStream is null, cannot test!");
+return result;
+}
+try {
+seq.setSequence(inputStream);
+} catch (IllegalStateException e) {
+out("open state: setSequence(InputStream) throws IllegalStateException!");
+result = false;
+}
+try {
+seq.getSequence();
+} catch (IllegalStateException e) {
+out("open state: getSequence() throws IllegalStateException!");
+result = false;
+}
+seq.close();
+return result;
+}
+/**
+* Create a new Sequence for testing.
+*
+* @return a dummy Sequence, or null, if a problem occured while creating
+*         the Sequence
+*/
+private static Sequence createSequence() {
+Sequence sequence = null;
+try {
+sequence = new Sequence(Sequence.PPQ, 480, 1);
+} catch (InvalidMidiDataException e) {
+// DO NOTHING
+}
+return sequence;
+}
+/**
+* Create a new InputStream containing a Sequence for testing.
+*
+* @return an InputStream containing a dummy Sequence, or null, if a problem
+*         occured while creating the InputStream
+*/
+private static InputStream createSequenceInputStream() {
+ByteArrayOutputStream baos = new ByteArrayOutputStream();
+Sequence sequence = createSequence();
+if (sequence == null) {
+return null;
+}
+try {
+MidiSystem.write(sequence, 0, baos);
+ByteArrayInputStream bais = new ByteArrayInputStream(baos.toByteArray());
+return bais;
+} catch (IOException e) {
+return null;
+}
+}
+private static void out(String message) {
+System.out.println(message);
+}
+}