<!doctype html>
<html>
  <head>
    <title>Test Exceptions from setValueCurveAtTime</title>
    <script src="../resources/js-test.js"></script>
    <script src="resources/compatibility.js"></script>
    <script src="resources/audio-testing.js"></script>
  </head>

  <body>
    <script>
      description("Test Exceptions from setValueCurveAtTime");
      window.jsTestIsAsync = true;

      var sampleRate = 48000;
      // Some short duration because we don't need to run the test for very long.
      var testDurationSec = 0.125;
      var testDurationFrames = testDurationSec * sampleRate;

      var audit = Audit.createTaskRunner();

      audit.defineTask("setValueCurve", function(done) {
        var success = true;
        var context = new OfflineAudioContext(1, testDurationFrames, sampleRate);
        var g = context.createGain();
        var curve = new Float32Array(2);

        // Start time and duration for setValueCurveAtTime
        var curveStartTime = 0.1 * testDurationSec;
        var duration = 0.1 * testDurationSec;

        // Some time that is known to during the setValueCurveTime interval.
        var automationTime = curveStartTime + duration / 2;

        success = Should("setValueCurveAtTime(curve, " + curveStartTime + ", " + duration + ")", function() {
          g.gain.setValueCurveAtTime(curve, curveStartTime, duration);
        }).notThrow() && success;

        success = Should("setValueAtTime(1, " + automationTime + ")", function() {
          g.gain.setValueAtTime(1, automationTime);
        }).throw("NotSupportedError") && success;

        success = Should("linearRampToValueAtTime(1, " + automationTime + ")", function() {
          g.gain.linearRampToValueAtTime(1, automationTime);
        }).throw("NotSupportedError") && success;

        success = Should("exponentialRampToValueAtTime(1, " + automationTime + ")", function() {
          g.gain.exponentialRampToValueAtTime(1, automationTime);
        }).throw("NotSupportedError") && success;

        success = Should("setTargetAtTime(1, " + automationTime + ", 1)", function() {
          g.gain.setTargetAtTime(1, automationTime, 1);
        }).throw("NotSupportedError") && success;

        success = Should("setValueAtTime(1, " + (curveStartTime + 1.1 * duration) + ")", function() {
          g.gain.setValueAtTime(1, curveStartTime + 1.1 * duration);
        }).notThrow() && success;

        var prefix = "Automation functions overlapping an existing setValueCurveAtTime";
        if (success)
          testPassed(prefix + " correctly signaled errors.\n");
        else
          testFailed(prefix + " failed to signal errors.\n");

        done();
      });      

      audit.defineTask("automations", function (done) {
        var success = true;
        var context = new OfflineAudioContext(1, testDurationFrames, sampleRate);
        var g = context.createGain();

        var curve = new Float32Array(2);
        // Start time and duration for setValueCurveAtTime
        var startTime = 0;
        var timeInterval = testDurationSec / 10;

        startTime += timeInterval;
        success = Should("linearRampToValueAtTime(1, " + startTime + ")", function () {
          g.gain.linearRampToValueAtTime(1, startTime);
        }).notThrow() && success;
      
        startTime += timeInterval;
        success = Should("exponentialRampToValueAtTime(1, " + startTime + ")", function () {
          g.gain.exponentialRampToValueAtTime(1, startTime);
        }).notThrow() && success;
      
        startTime += timeInterval;
        success = Should("setTargetAtTime(1, " + startTime + ", 0.1)", function () {
          g.gain.setTargetAtTime(1, startTime, 0.1);
        }).notThrow() && success;
      
        startTime += timeInterval;
        success = Should("setValueCurveAtTime(curve, " + startTime + ", 0.1)", function () {
          g.gain.setValueCurveAtTime(curve, startTime, 0.1);
        }).notThrow() && success;

        // Now try to setValueCurve that overlaps each of the above automations
        startTime = timeInterval / 2;

        for (var k = 0; k < 4; ++k) {
          var time = startTime + timeInterval * k;
          success = Should("setValueCurveAtTime(curve, " + time + ", 0.01)", function () {
            g.gain.setValueCurveAtTime(curve, time, 0.01);
          }).throw("NotSupportedError") && success;
        }

        // Elements of setValueCurve should be finite.
        success = Should("setValueCurveAtTime([NaN, NaN], " + time + ", 0.01)", function () {
          g.gain.setValueCurveAtTime(Float32Array.from([NaN, NaN]), time, 0.01);
        }).throw("TypeError") && success;

        success = Should("setValueCurveAtTime([1, Infinity], " + time + ", 0.01)", function () {
          g.gain.setValueCurveAtTime(Float32Array.from([1, Infinity]), time, 0.01);
        }).throw("TypeError") && success;

        var d = context.createDelay();
        // Check that we get warnings for out-of-range values and also throw for
        // non-finite values.
        success = Should("delayTime.setValueCurveAtTime([1, 5], " + time + ", 0.01)", function() {
          d.delayTime.setValueCurveAtTime(Float32Array.from([1, 5]), time, 0.01);
        }).notThrow() && success;

        success = Should("delayTime.setValueCurveAtTime([1, 5, Infinity], " + time + ", 0.01)",
          function() {
            d.delayTime.setValueCurveAtTime(Float32Array.from([1, 5, Infinity]), time, 0.01);
          }).throw("TypeError") && success;

        // One last test that prints out lots of digits for the time.
        var time = Math.PI / 100;
        success = Should("setValueCurveAtTime(curve, " + time + ", 0.01)", function () {
          g.gain.setValueCurveAtTime(curve, time, 0.01);
        }).throw("NotSupportedError") && success;

        var prefix = "setValueCurve overlapping existing automation functions";
        if (success)
          testPassed(prefix + " correctly signaled errors.\n");
        else
          testFailed(prefix + " failed to signal errors.\n");

        done();
      });

      audit.defineTask("catch-exception", function (done) {
        // Verify that the curve isn't inserted into the time line even if we catch the exception.
        var success = true;
        var context = new OfflineAudioContext(1, testDurationFrames, sampleRate);
        var gain = context.createGain();
        var source = context.createBufferSource();
        var buffer = context.createBuffer(1, 1, context.sampleRate);
        buffer.getChannelData(0)[0] = 1;
        source.buffer = buffer;
        source.loop = true;

        source.connect(gain);
        gain.connect(context.destination);

        gain.gain.setValueAtTime(1, 0);
        try {
          // The value curve has an invalid element. This automation shouldn't be inserted into the
          // timeline at all.
          gain.gain.setValueCurveAtTime(Float32Array.from([0, NaN]), 128 / context.sampleRate, .5);
        } catch (e) {
        };
        source.start();

        context.startRendering().then(function (resultBuffer) {
          // Since the setValueCurve wasn't inserted, the output should be exactly 1 for the entire
          // duration.
          var success = Should("Handled setValueCurve exception so output", resultBuffer.getChannelData(0))
            .beConstantValueOf(1);

          if (success)
            testPassed("setValueCurveAtTime correctly not inserted into timeline.\n");
          else
            testFailed("setValueCurveAtTime incorrectly still inserted into timeline.\n");
        }).then(done);
      });

      audit.defineTask("start-end", function (done) {
        var success = true;
        var context = new OfflineAudioContext(1, testDurationFrames, sampleRate);
        var g = context.createGain();
        var curve = new Float32Array(2);

        // Verify that a setValueCurve can start at the end of an automation.
        var time = 0;
        var timeInterval = testDurationSec / 50;
        success = Should("setValueAtTime(1, " + time + ")", function () {
          g.gain.setValueAtTime(1, time);
        }).notThrow();

        time += timeInterval;
        success = Should("linearRampToValueAtTime(0, " + time + ")", function () {
          g.gain.linearRampToValueAtTime(0, time);
        }).notThrow() && success;

        // setValueCurve starts at the end of the linear ramp. This should be fine.
        success = Should("setValueCurveAtTime(..., " + time + ", " + timeInterval + ")", function () {
          g.gain.setValueCurveAtTime(curve, time, timeInterval);
        }).notThrow() && success;

        // exponentialRamp ending one interval past the setValueCurve should be fine.
        time += 2*timeInterval;
        success = Should("exponentialRampToValueAtTime(1, " + time + ")", function () {
          g.gain.exponentialRampToValueAtTime(1, time);
        }).notThrow() && success;

        // setValueCurve starts at the end of the exponential ramp. This should be fine.
        success = Should("setValueCurveAtTime(..., " + time + ", " + timeInterval + ")", function () {
          g.gain.setValueCurveAtTime(curve, time, timeInterval);
        }).notThrow() && success;

        // setValueCurve at the end of the setValueCurve should be fine.
        time += timeInterval;
        success = Should("setValueCurveAtTime(..., " + time + ", " + timeInterval + ")", function () {
          g.gain.setValueCurveAtTime(curve, time, timeInterval);
        }).notThrow() && success;

        // setValueAtTime at the end of setValueCurve should be fine.
        time += timeInterval;
        success = Should("setValueAtTime(0, " + time + ")", function () {
          g.gain.setValueAtTime(0, time);
        }).notThrow() && success;

        // setValueCurve at the end of setValueAtTime should be fine.
        success = Should("setValueCurveAtTime(..., " + time + ", " + timeInterval + ")", function () {
          g.gain.setValueCurveAtTime(curve, time, timeInterval);
        }).notThrow() && success;

        // setTarget starting at the end of setValueCurve should be fine.
        time += timeInterval;
        success = Should("setTargetAtTime(1, " + time + ", 1)", function () {
          g.gain.setTargetAtTime(1, time, 1);
        }).notThrow() && success;

        var prefix = "setValueCurve with adjoining automation functions";
        if (success)
          testPassed(prefix + " allowed as expected.\n");
        else
          testFailed(prefix + " unexpectedly signaled errors.\n");

        done();
      });

      audit.defineTask("curve lengths", function (done) {
        var success = true;
        var context = new OfflineAudioContext(1, testDurationFrames, sampleRate);
        var g = context.createGain();
        var time = 0;

        // Check for invalid curve lengths
        success = Should("setValueCurveAtTime([], " + time + ", 0.01)", function () {
          g.gain.setValueCurveAtTime(Float32Array.from([]), time, 0.01);
        }).throw("InvalidStateError") && success;

        success = Should("setValueCurveAtTime([1], " + time + ", 0.01)", function () {
          g.gain.setValueCurveAtTime(Float32Array.from([1]), time, 0.01);
        }).throw("InvalidStateError") && success;

        success = Should("setValueCurveAtTime([1,2], " + time + ", 0.01)", function () {
          g.gain.setValueCurveAtTime(Float32Array.from([1,2]), time, 0.01);
        }).notThrow() && success;

        if (success)
          testPassed("Exceptions for curve length correctly handled.\n");
        else
          testFailed("Exceptions for curve length not correctly handled.\n");

        done();
      });

      audit.defineTask("finish", function (done) {
        finishJSTest();
        done();
      });

      audit.runTasks();
      successfullyParsed = true;
    </script>
  </body>
</html>