@azgaar/tone/build/esm/Tone/signal/Pow.test.js

A fork of Web Audio framework for making interactive music in the browser.

import { BasicTests } from "test/helper/Basic";
import { Pow } from "./Pow";
import { ConstantOutput } from "test/helper/ConstantOutput";
import { Signal } from "./Signal";
describe("Pow", () => {
    BasicTests(Pow);
    context("Exponential Scaling", () => {
        it("can do powers of 2", () => {
            return ConstantOutput(() => {
                const signal = new Signal(0.3);
                const pow = new Pow(2);
                signal.connect(pow);
                pow.toDestination();
            }, 0.09);
        });
        it("can compute negative values and powers less than 1", () => {
            return ConstantOutput(() => {
                const signal = new Signal(-0.49);
                const pow = new Pow(0.5);
                signal.connect(pow);
                pow.toDestination();
            }, 0.7);
        });
        it("can set a new exponent", () => {
            return ConstantOutput(() => {
                const signal = new Signal(0.5);
                const pow = new Pow(1);
                pow.value = 3;
                signal.connect(pow);
                pow.toDestination();
            }, 0.125);
        });
    });
});
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