| <!DOCTYPE html> |
| <html> |
| <head> |
| <script src="../fast/js/resources/js-test-pre.js"></script> |
| <script src="resources/audio-testing.js"></script> |
| </head> |
| |
| <body> |
| <div id="description"></div> |
| <div id="console"></div> |
| |
| <script> |
| description("Basic tests for BiquadFilterNode."); |
| |
| var context = 0; |
| |
| function runTest() { |
| if (window.testRunner) { |
| testRunner.dumpAsText(); |
| testRunner.waitUntilDone(); |
| } |
| |
| window.jsTestIsAsync = true; |
| |
| context = new webkitAudioContext(); |
| var filter = context.createBiquadFilter(); |
| |
| if (filter.numberOfInputs === 1) |
| testPassed("BiquadFilterNode has one input."); |
| else |
| testFailed("BiquadFilterNode should have one input."); |
| |
| if (filter.numberOfOutputs === 1) |
| testPassed("BiquadFilterNode has one output."); |
| else |
| testFailed("BiquadFilterNode should have one output."); |
| |
| if (filter.type === "lowpass") |
| testPassed("Biquad filter defaults to low-pass filter."); |
| else |
| testFailed("Biquad filter should default to low-pass filter."); |
| |
| if (filter.frequency.value === 350) |
| testPassed("The default value of frequency is 350."); |
| else |
| testFailed("The default value of frequency should be 350."); |
| |
| if (filter.Q.value === 1) |
| testPassed("The default value of Q is 1."); |
| else |
| testFailed("The default value of Q should be 1."); |
| |
| if (filter.gain.value === 0) |
| testPassed("The default value of gain is 0."); |
| else |
| testFailed("The default value of gain should be 0."); |
| |
| // Check that all legal filter types can be set. |
| var filterTypeArray = [{type: "lowpass", integerType: filter.LOWPASS}, |
| {type: "highpass", integerType: filter.HIGHPASS}, |
| {type: "bandpass", integerType: filter.BANDPASS}, |
| {type: "lowshelf", integerType: filter.LOWSHELF}, |
| {type: "highshelf", integerType: filter.HIGHSHELF}, |
| {type: "peaking", integerType: filter.PEAKING}, |
| {type: "notch", integerType: filter.NOTCH}, |
| {type: "allpass", integerType: filter.ALLPASS}]; |
| |
| for (var i = 0; i < filterTypeArray.length; ++i) { |
| try { |
| filter.type = filterTypeArray[i].type; |
| if (filter.type === filterTypeArray[i].type) { |
| var message = "Biquad filter type '" + filterTypeArray[i].type + "' is settable."; |
| testPassed(message); |
| } else { |
| var message = "Biquad filter type '" + filterTypeArray[i].type + "' was not correctly set."; |
| testFailed(message); |
| } |
| } catch(e) { |
| var message = "Biquad filter type " + i + " should not throw exception."; |
| testFailed(message); |
| } |
| } |
| |
| // For legacy support, verify that we can set the type attribute as an integer value and |
| // verify that this translates correctly to the WebIDL enum value. |
| for (var i = 0; i < filterTypeArray.length; ++i) { |
| try { |
| filter.type = filterTypeArray[i].integerType; |
| if (filter.type === filterTypeArray[i].type && filterTypeArray[i].integerType === i) { |
| var message = "Biquad filter type " + i + " is settable using legacy integer value."; |
| testPassed(message); |
| } else { |
| var message = "Biquad filter type " + i + " was not correctly set using legacy integer value."; |
| testFailed(message); |
| } |
| } catch(e) { |
| var message = "Biquad filter type " + i + " should not throw exception using legacy integer value."; |
| testFailed(message); |
| } |
| } |
| |
| // Check that illegal filter type throws. |
| try { |
| filter.type = filter.ALLPASS + 1; |
| testFailed("Illegal filter type should throw exception."); |
| } catch(e) { |
| testPassed("Illegal filter type correctly throws exception."); |
| } |
| |
| // Check specifically that we throw a TypeError. |
| shouldThrowTypeError(function() { filter.type = "xyz12349jfksd"; }, "Setting .type to illegal string value"); |
| shouldThrowTypeError(function() { filter.type = new Float32Array(1); }, "Setting .type to illegal type of Float32Array"); |
| |
| finishJSTest(); |
| } |
| |
| runTest(); |
| |
| </script> |
| |
| <script src="../fast/js/resources/js-test-post.js"></script> |
| </body> |
| </html> |
