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<head>
<title>
Test Constructor: Oscillator
</title>
<script src="../../resources/testharness.js"></script>
<script src="../../resources/testharnessreport.js"></script>
<script src="../resources/audit-util.js"></script>
<script src="../resources/audit.js"></script>
<script src="audionodeoptions.js"></script>
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<body>
<script id="layout-test-code">
let context;
let audit = Audit.createTaskRunner();
audit.define('initialize', (task, should) => {
context = initializeContext(should);
task.done();
});
audit.define('invalid constructor', (task, should) => {
testInvalidConstructor(should, 'OscillatorNode', context);
task.done();
});
audit.define('default constructor', (task, should) => {
let prefix = 'node0';
let node = testDefaultConstructor(should, 'OscillatorNode', context, {
prefix: prefix,
numberOfInputs: 0,
numberOfOutputs: 1,
channelCount: 2,
channelCountMode: 'max',
channelInterpretation: 'speakers'
});
testDefaultAttributes(
should, node, prefix,
[{name: 'type', value: 'sine'}, {name: 'frequency', value: 440}]);
task.done();
});
audit.define('test AudioNodeOptions', (task, should) => {
testAudioNodeOptions(should, context, 'OscillatorNode');
task.done();
});
audit.define('constructor options', (task, should) => {
let node;
let options = {type: 'sawtooth', detune: 7, frequency: 918};
should(
() => {
node = new OscillatorNode(context, options);
},
'node1 = new OscillatorNode(c, ' + JSON.stringify(options) + ')')
.notThrow();
should(node.type, 'node1.type').beEqualTo(options.type);
should(node.detune.value, 'node1.detune.value')
.beEqualTo(options.detune);
should(node.frequency.value, 'node1.frequency.value')
.beEqualTo(options.frequency);
should(node.channelCount, 'node1.channelCount').beEqualTo(2);
should(node.channelCountMode, 'node1.channelCountMode')
.beEqualTo('max');
should(node.channelInterpretation, 'node1.channelInterpretation')
.beEqualTo('speakers');
// Test that type and periodicWave options work as described.
options = {
type: 'sine',
periodicWave: new PeriodicWave(context, {real: [1, 1]})
};
should(() => {
node = new OscillatorNode(context, options);
}, 'new OscillatorNode(c, ' + JSON.stringify(options) + ')').notThrow();
options = {type: 'custom'};
should(
() => {
node = new OscillatorNode(context, options);
},
'new OscillatorNode(c, ' + JSON.stringify(options) + ')')
.throw('InvalidStateError');
options = {
type: 'custom',
periodicWave: new PeriodicWave(context, {real: [1, 1]})
};
should(() => {
node = new OscillatorNode(context, options);
}, 'new OscillatorNode(, ' + JSON.stringify(options) + ')').notThrow();
task.done();
});
audit.run();
</script>
</body>
</html>