chromium/src/third_party/blink/web_tests/external/wpt/webaudio/the-audio-api/the-iirfilternode-interface/iirfilter-basic.html - manifest_repos/chromium_src - Git at Google

 <!DOCTYPE html>
 <html>
   <head>
     <title>
       Test Basic IIRFilterNode Properties
     </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>
   </head>
   <body>
     <script id="layout-test-code">
       let sampleRate = 48000;
       let testFrames = 100;

       // Global context that can be used by the individual tasks. It must be
       // defined by the initialize task.
       let context;

       let audit = Audit.createTaskRunner();

       audit.define('initialize', (task, should) => {
         should(() => {
           context = new OfflineAudioContext(1, testFrames, sampleRate);
         }, 'Initialize context for testing').notThrow();
         task.done();
       });

       audit.define('existence', (task, should) => {
         should(context.createIIRFilter, 'context.createIIRFilter').exist();
         task.done();
       });

       audit.define('parameters', (task, should) => {
         // Create a really simple IIR filter. Doesn't much matter what.
         let coef = Float32Array.from([1]);

         let f = context.createIIRFilter(coef, coef);

         should(f.numberOfInputs, 'numberOfInputs').beEqualTo(1);
         should(f.numberOfOutputs, 'numberOfOutputs').beEqualTo(1);
         should(f.channelCountMode, 'channelCountMode').beEqualTo('max');
         should(f.channelInterpretation, 'channelInterpretation')
             .beEqualTo('speakers');

         task.done();
       });

       audit.define('exceptions-createIIRFilter', (task, should) => {
         should(function() {
           // Two args are required.
           context.createIIRFilter();
         }, 'createIIRFilter()').throw(TypeError);

         should(function() {
           // Two args are required.
           context.createIIRFilter(new Float32Array(1));
         }, 'createIIRFilter(new Float32Array(1))').throw(TypeError);

         should(function() {
           // null is not valid
           context.createIIRFilter(null, null);
         }, 'createIIRFilter(null, null)').throw(TypeError);

         should(function() {
           // There has to be at least one coefficient.
           context.createIIRFilter([], []);
         }, 'createIIRFilter([], [])').throw(DOMException, 'NotSupportedError');

         should(function() {
           // There has to be at least one coefficient.
           context.createIIRFilter([1], []);
         }, 'createIIRFilter([1], [])').throw(DOMException, 'NotSupportedError');

         should(function() {
           // There has to be at least one coefficient.
           context.createIIRFilter([], [1]);
         }, 'createIIRFilter([], [1])').throw(DOMException, 'NotSupportedError');

         should(
             function() {
               // Max allowed size for the coefficient arrays.
               let fb = new Float32Array(20);
               fb[0] = 1;
               context.createIIRFilter(fb, fb);
             },
             'createIIRFilter(new Float32Array(20), new Float32Array(20))')
             .notThrow();

         should(
             function() {
               // Max allowed size for the feedforward coefficient array.
               let coef = new Float32Array(21);
               coef[0] = 1;
               context.createIIRFilter(coef, [1]);
             },
             'createIIRFilter(new Float32Array(21), [1])')
             .throw(DOMException, 'NotSupportedError');

         should(
             function() {
               // Max allowed size for the feedback coefficient array.
               let coef = new Float32Array(21);
               coef[0] = 1;
               context.createIIRFilter([1], coef);
             },
             'createIIRFilter([1], new Float32Array(21))')
             .throw(DOMException, 'NotSupportedError');

         should(
             function() {
               // First feedback coefficient can't be 0.
               context.createIIRFilter([1], new Float32Array(2));
             },
             'createIIRFilter([1], new Float32Array(2))')
             .throw(DOMException, 'InvalidStateError');

         should(
             function() {
               // feedforward coefficients can't all be zero.
               context.createIIRFilter(new Float32Array(10), [1]);
             },
             'createIIRFilter(new Float32Array(10), [1])')
             .throw(DOMException, 'InvalidStateError');

         should(function() {
           // Feedback coefficients must be finite.
           context.createIIRFilter([1], [1, Infinity, NaN]);
         }, 'createIIRFilter([1], [1, NaN, Infinity])').throw(TypeError);

         should(function() {
           // Feedforward coefficients must be finite.
           context.createIIRFilter([1, Infinity, NaN], [1]);
         }, 'createIIRFilter([1, NaN, Infinity], [1])').throw(TypeError);

         should(function() {
           // Test that random junk in the array is converted to NaN.
           context.createIIRFilter([1, 'abc', []], [1]);
         }, 'createIIRFilter([1, \'abc\', []], [1])').throw(TypeError);

         task.done();
       });

       audit.define('exceptions-getFrequencyData', (task, should) => {
         // Create a really simple IIR filter. Doesn't much matter what.
         let coef = Float32Array.from([1]);

         let f = context.createIIRFilter(coef, coef);

         should(
             function() {
               // frequencyHz can't be null.
               f.getFrequencyResponse(
                   null, new Float32Array(1), new Float32Array(1));
             },
             'getFrequencyResponse(null, new Float32Array(1), new Float32Array(1))')
             .throw(TypeError);

         should(
             function() {
               // magResponse can't be null.
               f.getFrequencyResponse(
                   new Float32Array(1), null, new Float32Array(1));
             },
             'getFrequencyResponse(new Float32Array(1), null, new Float32Array(1))')
             .throw(TypeError);

         should(
             function() {
               // phaseResponse can't be null.
               f.getFrequencyResponse(
                   new Float32Array(1), new Float32Array(1), null);
             },
             'getFrequencyResponse(new Float32Array(1), new Float32Array(1), null)')
             .throw(TypeError);

         should(
             function() {
               // magResponse array must the same length as frequencyHz
               f.getFrequencyResponse(
                   new Float32Array(10), new Float32Array(1),
                   new Float32Array(20));
             },
             'getFrequencyResponse(new Float32Array(10), new Float32Array(1), new Float32Array(20))')
             .throw(DOMException, 'InvalidAccessError');

         should(
             function() {
               // phaseResponse array must be the same length as frequencyHz
               f.getFrequencyResponse(
                   new Float32Array(10), new Float32Array(20),
                   new Float32Array(1));
             },
             'getFrequencyResponse(new Float32Array(10), new Float32Array(20), new Float32Array(1))')
             .throw(DOMException, 'InvalidAccessError');

         task.done();
       });

       audit.run();
     </script>
   </body>
 </html>
	<!DOCTYPE html>
	<html>
	<head>
	<title>
	Test Basic IIRFilterNode Properties
	</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>
	</head>
	<body>
	<script id="layout-test-code">
	let sampleRate = 48000;
	let testFrames = 100;

	// Global context that can be used by the individual tasks. It must be
	// defined by the initialize task.
	let context;

	let audit = Audit.createTaskRunner();

	audit.define('initialize', (task, should) => {
	should(() => {
	context = new OfflineAudioContext(1, testFrames, sampleRate);
	}, 'Initialize context for testing').notThrow();
	task.done();
	});

	audit.define('existence', (task, should) => {
	should(context.createIIRFilter, 'context.createIIRFilter').exist();
	task.done();
	});

	audit.define('parameters', (task, should) => {
	// Create a really simple IIR filter. Doesn't much matter what.
	let coef = Float32Array.from([1]);

	let f = context.createIIRFilter(coef, coef);

	should(f.numberOfInputs, 'numberOfInputs').beEqualTo(1);
	should(f.numberOfOutputs, 'numberOfOutputs').beEqualTo(1);
	should(f.channelCountMode, 'channelCountMode').beEqualTo('max');
	should(f.channelInterpretation, 'channelInterpretation')
	.beEqualTo('speakers');

	task.done();
	});

	audit.define('exceptions-createIIRFilter', (task, should) => {
	should(function() {
	// Two args are required.
	context.createIIRFilter();
	}, 'createIIRFilter()').throw(TypeError);

	should(function() {
	// Two args are required.
	context.createIIRFilter(new Float32Array(1));
	}, 'createIIRFilter(new Float32Array(1))').throw(TypeError);

	should(function() {
	// null is not valid
	context.createIIRFilter(null, null);
	}, 'createIIRFilter(null, null)').throw(TypeError);

	should(function() {
	// There has to be at least one coefficient.
	context.createIIRFilter([], []);
	}, 'createIIRFilter([], [])').throw(DOMException, 'NotSupportedError');

	should(function() {
	// There has to be at least one coefficient.
	context.createIIRFilter([1], []);
	}, 'createIIRFilter([1], [])').throw(DOMException, 'NotSupportedError');

	should(function() {
	// There has to be at least one coefficient.
	context.createIIRFilter([], [1]);
	}, 'createIIRFilter([], [1])').throw(DOMException, 'NotSupportedError');

	should(
	function() {
	// Max allowed size for the coefficient arrays.
	let fb = new Float32Array(20);
	fb[0] = 1;
	context.createIIRFilter(fb, fb);
	},
	'createIIRFilter(new Float32Array(20), new Float32Array(20))')
	.notThrow();

	should(
	function() {
	// Max allowed size for the feedforward coefficient array.
	let coef = new Float32Array(21);
	coef[0] = 1;
	context.createIIRFilter(coef, [1]);
	},
	'createIIRFilter(new Float32Array(21), [1])')
	.throw(DOMException, 'NotSupportedError');

	should(
	function() {
	// Max allowed size for the feedback coefficient array.
	let coef = new Float32Array(21);
	coef[0] = 1;
	context.createIIRFilter([1], coef);
	},
	'createIIRFilter([1], new Float32Array(21))')
	.throw(DOMException, 'NotSupportedError');

	should(
	function() {
	// First feedback coefficient can't be 0.
	context.createIIRFilter([1], new Float32Array(2));
	},
	'createIIRFilter([1], new Float32Array(2))')
	.throw(DOMException, 'InvalidStateError');

	should(
	function() {
	// feedforward coefficients can't all be zero.
	context.createIIRFilter(new Float32Array(10), [1]);
	},
	'createIIRFilter(new Float32Array(10), [1])')
	.throw(DOMException, 'InvalidStateError');

	should(function() {
	// Feedback coefficients must be finite.
	context.createIIRFilter([1], [1, Infinity, NaN]);
	}, 'createIIRFilter([1], [1, NaN, Infinity])').throw(TypeError);

	should(function() {
	// Feedforward coefficients must be finite.
	context.createIIRFilter([1, Infinity, NaN], [1]);
	}, 'createIIRFilter([1, NaN, Infinity], [1])').throw(TypeError);

	should(function() {
	// Test that random junk in the array is converted to NaN.
	context.createIIRFilter([1, 'abc', []], [1]);
	}, 'createIIRFilter([1, \'abc\', []], [1])').throw(TypeError);

	task.done();
	});

	audit.define('exceptions-getFrequencyData', (task, should) => {
	// Create a really simple IIR filter. Doesn't much matter what.
	let coef = Float32Array.from([1]);

	let f = context.createIIRFilter(coef, coef);

	should(
	function() {
	// frequencyHz can't be null.
	f.getFrequencyResponse(
	null, new Float32Array(1), new Float32Array(1));
	},
	'getFrequencyResponse(null, new Float32Array(1), new Float32Array(1))')
	.throw(TypeError);

	should(
	function() {
	// magResponse can't be null.
	f.getFrequencyResponse(
	new Float32Array(1), null, new Float32Array(1));
	},
	'getFrequencyResponse(new Float32Array(1), null, new Float32Array(1))')
	.throw(TypeError);

	should(
	function() {
	// phaseResponse can't be null.
	f.getFrequencyResponse(
	new Float32Array(1), new Float32Array(1), null);
	},
	'getFrequencyResponse(new Float32Array(1), new Float32Array(1), null)')
	.throw(TypeError);

	should(
	function() {
	// magResponse array must the same length as frequencyHz
	f.getFrequencyResponse(
	new Float32Array(10), new Float32Array(1),
	new Float32Array(20));
	},
	'getFrequencyResponse(new Float32Array(10), new Float32Array(1), new Float32Array(20))')
	.throw(DOMException, 'InvalidAccessError');

	should(
	function() {
	// phaseResponse array must be the same length as frequencyHz
	f.getFrequencyResponse(
	new Float32Array(10), new Float32Array(20),
	new Float32Array(1));
	},
	'getFrequencyResponse(new Float32Array(10), new Float32Array(20), new Float32Array(1))')
	.throw(DOMException, 'InvalidAccessError');

	task.done();
	});

	audit.run();
	</script>
	</body>
	</html>