| <!DOCTYPE html> |
| <html> |
| <body> |
| <script src="../resources/js-test.js"></script> |
| <script> |
| description("Tests the limits of BiquadFilterNode's AudioParam attributes"); |
| |
| context = new OfflineAudioContext({ sampleRate: 44100, length: 100 }); |
| node = new BiquadFilterNode(context); |
| |
| const FLT_MAX = 3.4028235e38; |
| |
| function diff(a, b) |
| { |
| if (a > b) |
| return a - b; |
| return b - a; |
| } |
| |
| shouldBe("node.frequency.defaultValue", "350"); |
| shouldBe("node.frequency.minValue", "0"); |
| shouldBe("node.frequency.maxValue", "0.5 * context.sampleRate"); |
| |
| shouldBe("node.detune.defaultValue", "0"); |
| shouldBe("node.detune.minValue", "-153600"); |
| shouldBe("node.detune.maxValue", "153600"); |
| |
| shouldBe("node.Q.defaultValue", "1"); |
| shouldBeTrue("diff(node.Q.minValue, -FLT_MAX) < 1e31"); |
| shouldBeTrue("diff(node.Q.maxValue, FLT_MAX) < 1e31"); |
| |
| shouldBe("node.gain.defaultValue", "0"); |
| shouldBeTrue("diff(node.gain.minValue, -FLT_MAX) < 1e31"); |
| shouldBeTrue("diff(node.gain.maxValue, 1541) < 1"); |
| </script> |
| </body> |
| </html> |
