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test((t) => {
const context = new AudioContext();
const source = new ConstantSourceNode(context);
const panner = new PannerNode(context);
source.connect(panner).connect(context.destination);
// Basic parameters
assert_equals(panner.numberOfInputs,1);
assert_equals(panner.numberOfOutputs,1);
assert_equals(panner.refDistance, 1);
panner.refDistance = 270.5;
assert_equals(panner.refDistance, 270.5);
assert_equals(panner.maxDistance, 10000);
panner.maxDistance = 100.5;
assert_equals(panner.maxDistance, 100.5);
assert_equals(panner.rolloffFactor, 1);
panner.rolloffFactor = 0.75;
assert_equals(panner.rolloffFactor, 0.75);
assert_equals(panner.coneInnerAngle, 360);
panner.coneInnerAngle = 240.5;
assert_equals(panner.coneInnerAngle, 240.5);
assert_equals(panner.coneOuterAngle, 360);
panner.coneOuterAngle = 166.5;
assert_equals(panner.coneOuterAngle, 166.5);
assert_equals(panner.coneOuterGain, 0);
panner.coneOuterGain = 0.25;
assert_equals(panner.coneOuterGain, 0.25);
assert_equals(panner.panningModel, 'equalpower');
assert_equals(panner.distanceModel, 'inverse');
// Position/orientation AudioParams
assert_equals(panner.positionX.value, 0);
assert_equals(panner.positionY.value, 0);
assert_equals(panner.positionZ.value, 0);
assert_equals(panner.orientationX.value, 1);
assert_equals(panner.orientationY.value, 0);
assert_equals(panner.orientationZ.value, 0);
// AudioListener
assert_equals(context.listener.positionX.value, 0);
assert_equals(context.listener.positionY.value, 0);
assert_equals(context.listener.positionZ.value, 0);
assert_equals(context.listener.forwardX.value, 0);
assert_equals(context.listener.forwardY.value, 0);
assert_equals(context.listener.forwardZ.value, -1);
assert_equals(context.listener.upX.value, 0);
assert_equals(context.listener.upY.value, 1);
assert_equals(context.listener.upZ.value, 0);
panner.panningModel = 'equalpower';
assert_equals(panner.panningModel, 'equalpower');
panner.panningModel = 'HRTF';
assert_equals(panner.panningModel, 'HRTF');
panner.panningModel = 'invalid';
assert_equals(panner.panningModel, 'HRTF');
// Check that numerical values are no longer supported. We shouldn't
// throw and the value shouldn't be changed.
panner.panningModel = 1;
assert_equals(panner.panningModel, 'HRTF');
panner.distanceModel = 'linear';
assert_equals(panner.distanceModel, 'linear');
panner.distanceModel = 'inverse';
assert_equals(panner.distanceModel, 'inverse');
panner.distanceModel = 'exponential';
assert_equals(panner.distanceModel, 'exponential');
panner.distanceModel = 'invalid';
assert_equals(panner.distanceModel, 'exponential');
}, 'Test the PannerNode interface');
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