231 lines
No EOL
11 KiB
JavaScript
231 lines
No EOL
11 KiB
JavaScript
/**
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* LogarithmPlotter - 2D plotter software to make BODE plots, sequences and distribution functions.
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* Copyright (C) 2021-2024 Ad5001
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <https://www.gnu.org/licenses/>.
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*/
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// Load prior tests
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import "../basics/utils.mjs"
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import "./base.mjs"
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import "./expreval.mjs"
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import { describe, it } from "mocha"
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import { expect } from "chai"
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import { existsSync } from "../mock/fs.mjs"
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const { spy } = chaiPlugins
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import ExprEval from "../../src/module/expreval.mjs"
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import LatexAPI from "../../src/module/latex.mjs"
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describe("Module/Latex", function() {
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it("is defined as a global", function() {
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expect(globalThis.Modules.Latex).to.equal(LatexAPI)
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})
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describe("#initialize", function() {
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it("isn't enabled before initialization", function() {
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expect(LatexAPI.enabled).to.be.false
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})
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it("is enabled after initialization", function() {
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LatexAPI.initialize({ latex: Latex, helper: Helper })
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expect(LatexAPI.enabled).to.equal(Helper.getSetting("enable_latex"))
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expect(LatexAPI.initialized).to.be.true
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})
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})
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describe("#requestAsyncRender", function() {
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it("should return a render result with a valid source, a width, and a height", async function() {
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const data = await LatexAPI.requestAsyncRender("\\frac{x}{3}", 13, "#AA0033")
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expect(data).to.be.an("object")
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expect(data.source).to.be.a("string")
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expect(data.source).to.satisfy(existsSync)
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expect(data.height).to.be.a("number")
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expect(data.width).to.be.a("number")
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})
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it("should call functions from the LaTeX module", async function() {
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const renderSyncSpy = spy.on(Latex, "renderSync")
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const renderAsyncSpy = spy.on(Latex, "renderAsync")
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Latex.supportsAsyncRender = true
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await LatexAPI.requestAsyncRender("\\frac{x}{3}", 13, "#AA0033")
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expect(renderAsyncSpy).to.have.been.called.once
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expect(renderSyncSpy).to.have.been.called.once // Called async
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Latex.supportsAsyncRender = false
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await LatexAPI.requestAsyncRender("\\frac{x}{3}", 13, "#AA0033")
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expect(renderAsyncSpy).to.have.been.called.once // From the time before
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expect(renderSyncSpy).to.have.been.called.twice
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Latex.supportsAsyncRender = true
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})
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it("should not reply with the same source for different markup, font size, or color.", async function() {
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const datas = [
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await LatexAPI.requestAsyncRender("\\frac{x}{3}", 13, "#AA0033"),
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await LatexAPI.requestAsyncRender("\\frac{x}{4}", 13, "#AA0033"),
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await LatexAPI.requestAsyncRender("\\frac{x}{3}", 14, "#AA0033"),
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await LatexAPI.requestAsyncRender("\\frac{x}{3}", 13, "#0033AA")
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]
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const sources = datas.map(x => x.source)
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expect(new Set(sources)).to.have.a.lengthOf(4)
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})
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})
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describe("#findPrerendered", function() {
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it("should return the same data as async render for the same markup, font size, and color", async function() {
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const data = await LatexAPI.requestAsyncRender("\\frac{x}{3}", 13, "#AA0033")
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const found = LatexAPI.findPrerendered("\\frac{x}{3}", 13, "#AA0033")
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expect(found).to.not.be.null
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expect(found.source).to.equal(data.source)
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expect(found.width).to.equal(data.width)
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})
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it("should return null if the markup hasn't been prerendered with the same markup, font size, and color", async function() {
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await LatexAPI.requestAsyncRender("\\frac{x}{3}", 13, "#AA0033")
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expect(LatexAPI.findPrerendered("\\frac{y}{3}", 13, "#AA0033")).to.be.null
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expect(LatexAPI.findPrerendered("\\frac{x}{3}", 12, "#AA0033")).to.be.null
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expect(LatexAPI.findPrerendered("\\frac{x}{3}", 13, "#3300AA")).to.be.null
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})
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})
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describe("#par", function() {
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it("should add parentheses to strings", function() {
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expect(LatexAPI.par("string")).to.equal("(string)")
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expect(LatexAPI.par("aaaa")).to.equal("(aaaa)")
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expect(LatexAPI.par("")).to.equal("()")
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expect(LatexAPI.par("(example)")).to.equal("((example))")
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})
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})
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describe("#parif", function() {
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it("should add parentheses to strings that contain one of the ones in the list", function() {
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expect(LatexAPI.parif("string", ["+"])).to.equal("string")
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expect(LatexAPI.parif("string+assert", ["+"])).to.equal("(string+assert)")
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expect(LatexAPI.parif("string+assert", ["+", "-"])).to.equal("(string+assert)")
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expect(LatexAPI.parif("string-assert", ["+", "-"])).to.equal("(string-assert)")
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})
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it("shouldn't add new parentheses to strings that contains one of the ones in the list if they already have one", function() {
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expect(LatexAPI.parif("(string+assert", ["+"])).to.equal("((string+assert)")
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expect(LatexAPI.parif("string+assert)", ["+"])).to.equal("(string+assert))")
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expect(LatexAPI.parif("(string+assert)", ["+"])).to.equal("(string+assert)")
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expect(LatexAPI.parif("(string+assert)", ["+", "-"])).to.equal("(string+assert)")
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expect(LatexAPI.parif("(string-assert)", ["+", "-"])).to.equal("(string-assert)")
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})
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it("shouldn't add parentheses to strings that does not contains one of the ones in the list", function() {
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expect(LatexAPI.parif("string", ["+"])).to.equal("string")
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expect(LatexAPI.parif("string+assert", ["-"])).to.equal("string+assert")
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expect(LatexAPI.parif("(string*assert", ["+", "-"])).to.equal("(string*assert")
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expect(LatexAPI.parif("string/assert)", ["+", "-"])).to.equal("string/assert)")
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})
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it("should remove parentheses from strings that does not contains one of the ones in the list", function() {
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expect(LatexAPI.parif("(string)", ["+"])).to.equal("string")
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expect(LatexAPI.parif("(string+assert)", ["-"])).to.equal("string+assert")
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expect(LatexAPI.parif("((string*assert)", ["+", "-"])).to.equal("(string*assert")
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expect(LatexAPI.parif("(string/assert))", ["+", "-"])).to.equal("string/assert)")
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})
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})
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describe("#variable", function() {
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const from = [
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"α", "β", "γ", "δ", "ε", "ζ", "η",
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"π", "θ", "κ", "λ", "μ", "ξ", "ρ",
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"ς", "σ", "τ", "φ", "χ", "ψ", "ω",
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"Γ", "Δ", "Θ", "Λ", "Ξ", "Π", "Σ",
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"Φ", "Ψ", "Ω", "ₐ", "ₑ", "ₒ", "ₓ",
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"ₕ", "ₖ", "ₗ", "ₘ", "ₙ", "ₚ", "ₛ",
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"ₜ", "¹", "²", "³", "⁴", "⁵", "⁶",
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"⁷", "⁸", "⁹", "⁰", "₁", "₂", "₃",
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"₄", "₅", "₆", "₇", "₈", "₉", "₀",
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"pi", "∞"]
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const to = [
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"\\alpha", "\\beta", "\\gamma", "\\delta", "\\epsilon", "\\zeta", "\\eta",
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"\\pi", "\\theta", "\\kappa", "\\lambda", "\\mu", "\\xi", "\\rho",
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"\\sigma", "\\sigma", "\\tau", "\\phi", "\\chi", "\\psi", "\\omega",
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"\\Gamma", "\\Delta", "\\Theta", "\\Lambda", "\\Xi", "\\Pi", "\\Sigma",
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"\\Phy", "\\Psi", "\\Omega", "{}_{a}", "{}_{e}", "{}_{o}", "{}_{x}",
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"{}_{h}", "{}_{k}", "{}_{l}", "{}_{m}", "{}_{n}", "{}_{p}", "{}_{s}",
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"{}_{t}", "{}^{1}", "{}^{2}", "{}^{3}", "{}^{4}", "{}^{5}", "{}^{6}",
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"{}^{7}", "{}^{8}", "{}^{9}", "{}^{0}", "{}_{1}", "{}_{2}", "{}_{3}",
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"{}_{4}", "{}_{5}", "{}_{6}", "{}_{7}", "{}_{8}", "{}_{9}", "{}_{0}",
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"\\pi", "\\infty"]
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it("should convert unicode characters to their latex equivalent", function() {
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for(let i = 0; i < from.length; i++)
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expect(LatexAPI.variable(from[i])).to.include(to[i])
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})
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it("should wrap within dollar signs when the option is included", function() {
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for(let i = 0; i < from.length; i++) {
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expect(LatexAPI.variable(from[i], false)).to.equal(to[i])
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expect(LatexAPI.variable(from[i], true)).to.equal(`$${to[i]}$`)
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}
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})
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it("should be able to convert multiple of them", function() {
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expect(LatexAPI.variable("α₂", false)).to.equal("\\alpha{}_{2}")
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expect(LatexAPI.variable("∞piΠ", false)).to.equal("\\infty\\pi\\Pi")
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})
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})
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describe("#functionToLatex", function() {
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it("should transform derivatives into latex fractions", function() {
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const d1 = LatexAPI.functionToLatex("derivative", ["'3t'", "'t'", "x+2"])
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const d2 = LatexAPI.functionToLatex("derivative", ["f", "x+2"])
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expect(d1).to.equal("\\frac{d3x}{dx}")
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expect(d2).to.equal("\\frac{df}{dx}(x+2)")
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})
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it("should transform integrals into latex limits", function() {
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const i1 = LatexAPI.functionToLatex("integral", ["0", "x", "'3y'", "'y'"])
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const i2 = LatexAPI.functionToLatex("integral", ["1", "2", "f"])
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expect(i1).to.equal("\\int\\limits_{0}^{x}3y dy")
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expect(i2).to.equal("\\int\\limits_{1}^{2}f(t) dt")
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})
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it("should transform sqrt functions to sqrt latex", function() {
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const sqrt1 = LatexAPI.functionToLatex("sqrt", ["(x+2)"])
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const sqrt2 = LatexAPI.functionToLatex("sqrt", ["\\frac{x}{2}"])
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expect(sqrt1).to.equal("\\sqrt{x+2}")
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expect(sqrt2).to.equal("\\sqrt{\\frac{x}{2}}")
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})
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it("should transform abs, floor and ceil", function() {
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const abs = LatexAPI.functionToLatex("abs", ["x+3"])
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const floor = LatexAPI.functionToLatex("floor", ["x+3"])
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const ceil = LatexAPI.functionToLatex("ceil", ["x+3"])
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expect(abs).to.equal("\\left|x+3\\right|")
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expect(floor).to.equal("\\left\\lfloor{x+3}\\right\\rfloor")
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expect(ceil).to.equal("\\left\\lceil{x+3}\\right\\rceil")
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})
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it("should transform regular functions into latex", function() {
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const f1 = LatexAPI.functionToLatex("f", ["x+3", true])
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const f2 = LatexAPI.functionToLatex("h_1", ["10"])
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expect(f1).to.equal("\\mathrm{f}\\left(x+3, true\\right)")
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expect(f2).to.equal("\\mathrm{h_1}\\left(10\\right)")
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})
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})
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describe("#expression", function() {
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it("should transform parsed expressions", function() {
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const expr = ExprEval.parse("(+1! == 2/2 ? sin [-2.2][0] : f(t)^(1+1-1) + sqrt(A.t)) * 3 % 1")
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const expected = "((((+1!))==(\\frac{2}{2}) ? (\\mathrm{sin}\\left(([(-2.2)][0])\\right)) : (\\mathrm{f}\\left(t\\right)^{1+1-1}+\\sqrt{A.t})) \\times 3) \\mathrm{mod} 1"
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expect(LatexAPI.expression(expr.tokens)).to.equal(expected)
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})
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})
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}) |