86 lines
2.9 KiB
JavaScript
86 lines
2.9 KiB
JavaScript
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var expect = require("chai").expect;
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var freesewing = require("../dist/index.js");
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var utils = freesewing.utils;
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it("Should return the correct macro name", () => {
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expect(utils.macroName("test")).to.equal("_macro_test");
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});
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it("Should find the intersection of two endless line segments", () => {
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var a = new freesewing.Point(10, 20);
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var b = new freesewing.Point(20, 24);
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var c = new freesewing.Point(90, 19);
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var d = new freesewing.Point(19, 70);
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var X = freesewing.utils.beamsCross(a, b, c, d);
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expect(X.x).to.equal(60.49);
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expect(X.y).to.equal(40.2);
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});
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it("Should detect parallel lines", () => {
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var a = new freesewing.Point(10, 20);
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var b = new freesewing.Point(20, 20);
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var c = new freesewing.Point(90, 40);
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var d = new freesewing.Point(19, 40);
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expect(freesewing.utils.beamsCross(a, b, c, d)).to.equal(false);
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expect(freesewing.utils.linesCross(a, b, c, d)).to.equal(false);
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});
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it("Should detect vertical lines", () => {
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var a = new freesewing.Point(10, 20);
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var b = new freesewing.Point(10, 90);
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var c = new freesewing.Point(90, 40);
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var d = new freesewing.Point(19, 40);
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var X = freesewing.utils.beamsCross(a, b, c, d);
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expect(X.x).to.equal(10);
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expect(X.y).to.equal(40);
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var X = freesewing.utils.beamsCross(c, d, a, b);
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expect(X.x).to.equal(10);
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});
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it("Should swap direction prior to finding beam intersection", () => {
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var a = new freesewing.Point(10, 20);
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var b = new freesewing.Point(00, 90);
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var c = new freesewing.Point(90, 40);
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var d = new freesewing.Point(19, 40);
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var X = freesewing.utils.beamsCross(a, b, c, d);
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expect(X.x).to.equal(7.14);
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expect(X.y).to.equal(40);
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});
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it("Should return false when two lines don't intersect", () => {
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var a = new freesewing.Point(10, 20);
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var b = new freesewing.Point(20, 24);
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var c = new freesewing.Point(90, 19);
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var d = new freesewing.Point(19, 70);
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expect(freesewing.utils.linesCross(a, b, c, d)).to.equal(false);
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});
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it("Should find the intersection of two line segments", () => {
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var a = new freesewing.Point(10, 10);
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var b = new freesewing.Point(90, 74);
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var c = new freesewing.Point(90, 19);
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var d = new freesewing.Point(11, 70);
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var X = freesewing.utils.beamsCross(a, b, c, d);
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expect(X.x).to.equal(51.95);
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expect(X.y).to.equal(43.56);
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});
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it("Should find the intersection of an endles line and a give Y-value", () => {
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var a = new freesewing.Point(10, 10);
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var b = new freesewing.Point(90, 74);
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var X = freesewing.utils.beamCrossesY(a, b, 69);
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expect(X.x).to.equal(83.75);
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expect(X.y).to.equal(69);
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});
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it("Should detect horizontal lines never pass a give Y-value", () => {
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var a = new freesewing.Point(10, 10);
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var b = new freesewing.Point(90, 10);
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expect(freesewing.utils.beamCrossesY(a, b, 69)).to.equal(false);
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});
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it("Should correctly format units", () => {
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expect(freesewing.utils.units(123.456)).to.equal("12.35cm");
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expect(freesewing.utils.units(123.456, "imperial")).to.equal('4.86"');
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});
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