25 lines
735 B
JavaScript
25 lines
735 B
JavaScript
"use strict";
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var Utils = lib("io/utils.js");
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describe("IOUtils", function() {
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describe("#periodAndDuty", function() {
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var fn = Utils.periodAndDuty;
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it("calculates values for PWM", function() {
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var value = fn(0.5, 2000, null, null);
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expect(value).to.be.eql({ period: 500000, duty: 250000 });
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});
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it("calculates values for servos", function() {
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var value = fn(0.5, 50, { min: 500, max: 2400 }, "high");
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expect(value).to.be.eql({ duty: 1450000, period: 20000000 });
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});
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it("calculates values for different polarities", function() {
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var value = fn(0.5, 50, { min: 500, max: 2400 }, "low");
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expect(value).to.be.eql({ duty: 18550000, period: 20000000 });
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});
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});
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});
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