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<!DOCTYPE html>
<html>
<head>
<title>
Basic ConstantSourceNode Tests
</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="../../resources/start-stop-exceptions.js"></script>
</head>
<body>
<script id="layout-test-code">
let context = new AudioContext();
let audit = Audit.createTaskRunner();
audit.define('createConstantSource()', (task, should) => {
let node;
let prefix = 'Factory method: ';
should(() => {
node = context.createConstantSource();
}, prefix + 'node = context.createConstantSource()').notThrow();
should(
node instanceof ConstantSourceNode,
prefix + 'node instance of ConstantSourceNode')
.beEqualTo(true);
verifyNodeDefaults(should, node, prefix);
task.done();
});
audit.define('new ConstantSourceNode()', (task, should) => {
let node;
let prefix = 'Constructor: ';
should(() => {
node = new ConstantSourceNode(context);
}, prefix + 'node = new ConstantSourceNode()').notThrow();
should(
node instanceof ConstantSourceNode,
prefix + 'node instance of ConstantSourceNode')
.beEqualTo(true);
verifyNodeDefaults(should, node, prefix);
task.done();
});
audit.define('start/stop exceptions', (task, should) => {
let node = new ConstantSourceNode(context);
testStartStop(should, node);
task.done();
});
function verifyNodeDefaults(should, node, prefix) {
should(node.numberOfInputs, prefix + 'node.numberOfInputs')
.beEqualTo(0);
should(node.numberOfOutputs, prefix + 'node.numberOfOutputs')
.beEqualTo(1);
should(node.channelCount, prefix + 'node.channelCount').beEqualTo(2);
should(node.channelCountMode, prefix + 'node.channelCountMode')
.beEqualTo('max');
should(
node.channelInterpretation, prefix + 'node.channelInterpretation')
.beEqualTo('speakers');
should(node.offset.value, prefix + 'node.offset.value').beEqualTo(1);
should(node.offset.defaultValue, prefix + 'node.offset.defaultValue')
.beEqualTo(1);
should(node.offset.minValue, prefix + 'node.offset.minValue')
.beEqualTo(Math.fround(-3.4028235e38));
should(node.offset.maxValue, prefix + 'node.offset.maxValue')
.beEqualTo(Math.fround(3.4028235e38));
}
audit.run();
</script>
</body>
</html>
|
