ccd8f40028
Summary: Looks like there was lint, but `make lint` wasn't failing on it because it would just automatically fix it! This removes the `--fix` from `eslint` and fixes the lint. Test Plan: - `make lint` Auditors: kevinb
1780 lines
59 KiB
JavaScript
1780 lines
59 KiB
JavaScript
/* eslint max-len:0 */
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/* global beforeEach: false */
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/* global jasmine: false */
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/* global expect: false */
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/* global it: false */
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/* global describe: false */
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var buildMathML = require("../src/buildMathML");
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var buildTree = require("../src/buildTree");
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var katex = require("../katex");
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var ParseError = require("../src/ParseError");
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var parseTree = require("../src/parseTree");
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var Options = require("../src/Options");
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var Settings = require("../src/Settings");
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var Style = require("../src/Style");
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var defaultSettings = new Settings({});
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var defaultOptions = new Options({
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style: Style.TEXT,
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size: "size5",
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});
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var _getBuilt = function(expr, settings) {
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var usedSettings = settings ? settings : defaultSettings;
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var parsedTree = parseTree(expr, usedSettings);
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var rootNode = buildTree(parsedTree, expr, usedSettings);
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// grab the root node of the HTML rendering
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var builtHTML = rootNode.children[1];
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// Remove the outer .katex and .katex-inner layers
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return builtHTML.children[2].children;
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};
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/**
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* Return the root node of the rendered HTML.
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* @param expr
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* @param settings
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* @returns {Object}
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*/
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var getBuilt = function(expr, settings) {
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var usedSettings = settings ? settings : defaultSettings;
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expect(expr).toBuild(usedSettings);
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return _getBuilt(expr, settings);
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};
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/**
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* Return the root node of the parse tree.
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* @param expr
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* @param settings
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* @returns {Object}
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*/
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var getParsed = function(expr, settings) {
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var usedSettings = settings ? settings : defaultSettings;
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expect(expr).toParse(usedSettings);
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return parseTree(expr, usedSettings);
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};
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beforeEach(function() {
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jasmine.addMatchers({
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toParse: function() {
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return {
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compare: function(actual, settings) {
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var usedSettings = settings ? settings : defaultSettings;
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var result = {
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pass: true,
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message: "'" + actual + "' succeeded parsing",
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};
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try {
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parseTree(actual, usedSettings);
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} catch (e) {
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result.pass = false;
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if (e instanceof ParseError) {
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result.message = "'" + actual + "' failed " +
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"parsing with error: " + e.message;
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} else {
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result.message = "'" + actual + "' failed " +
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"parsing with unknown error: " + e.message;
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}
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}
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return result;
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},
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};
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},
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toNotParse: function() {
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return {
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compare: function(actual, settings) {
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var usedSettings = settings ? settings : defaultSettings;
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var result = {
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pass: false,
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message: "Expected '" + actual + "' to fail " +
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"parsing, but it succeeded",
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};
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try {
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parseTree(actual, usedSettings);
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} catch (e) {
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if (e instanceof ParseError) {
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result.pass = true;
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result.message = "'" + actual + "' correctly " +
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"didn't parse with error: " + e.message;
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} else {
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result.message = "'" + actual + "' failed " +
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"parsing with unknown error: " + e.message;
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}
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}
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return result;
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},
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};
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},
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toBuild: function() {
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return {
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compare: function(actual, settings) {
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var usedSettings = settings ? settings : defaultSettings;
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var result = {
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pass: true,
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message: "'" + actual + "' succeeded in building",
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};
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expect(actual).toParse(usedSettings);
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try {
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_getBuilt(actual, settings);
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} catch (e) {
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result.pass = false;
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if (e instanceof ParseError) {
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result.message = "'" + actual + "' failed to " +
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"build with error: " + e.message;
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} else {
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result.message = "'" + actual + "' failed " +
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"building with unknown error: " + e.message;
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}
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}
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return result;
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},
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};
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},
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});
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});
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describe("A parser", function() {
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it("should not fail on an empty string", function() {
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expect("").toParse();
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});
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it("should ignore whitespace", function() {
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var parseA = getParsed(" x y ");
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var parseB = getParsed("xy");
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expect(parseA).toEqual(parseB);
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});
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});
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describe("An ord parser", function() {
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var expression = "1234|/@.\"`abcdefgzABCDEFGZ";
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it("should not fail", function() {
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expect(expression).toParse();
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});
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it("should build a list of ords", function() {
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var parse = getParsed(expression);
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expect(parse).toBeTruthy();
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for (var i = 0; i < parse.length; i++) {
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var group = parse[i];
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expect(group.type).toMatch("ord");
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}
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});
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it("should parse the right number of ords", function() {
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var parse = getParsed(expression);
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expect(parse.length).toBe(expression.length);
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});
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});
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describe("A bin parser", function() {
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var expression = "+-*\\cdot\\pm\\div";
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it("should not fail", function() {
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expect(expression).toParse();
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});
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it("should build a list of bins", function() {
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var parse = getParsed(expression);
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expect(parse).toBeTruthy();
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for (var i = 0; i < parse.length; i++) {
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var group = parse[i];
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expect(group.type).toEqual("bin");
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}
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});
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});
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describe("A rel parser", function() {
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var expression = "=<>\\leq\\geq\\neq\\nleq\\ngeq\\cong";
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it("should not fail", function() {
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expect(expression).toParse();
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});
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it("should build a list of rels", function() {
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var parse = getParsed(expression);
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expect(parse).toBeTruthy();
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for (var i = 0; i < parse.length; i++) {
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var group = parse[i];
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expect(group.type).toEqual("rel");
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}
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});
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});
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describe("A punct parser", function() {
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var expression = ",;\\colon";
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it("should not fail", function() {
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expect(expression).toParse();
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});
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it("should build a list of puncts", function() {
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var parse = getParsed(expression);
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expect(parse).toBeTruthy();
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for (var i = 0; i < parse.length; i++) {
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var group = parse[i];
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expect(group.type).toEqual("punct");
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}
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});
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});
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describe("An open parser", function() {
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var expression = "([";
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it("should not fail", function() {
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expect(expression).toParse();
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});
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it("should build a list of opens", function() {
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var parse = getParsed(expression);
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expect(parse).toBeTruthy();
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for (var i = 0; i < parse.length; i++) {
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var group = parse[i];
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expect(group.type).toEqual("open");
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}
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});
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});
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describe("A close parser", function() {
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var expression = ")]?!";
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it("should not fail", function() {
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expect(expression).toParse();
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});
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it("should build a list of closes", function() {
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var parse = getParsed(expression);
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expect(parse).toBeTruthy();
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for (var i = 0; i < parse.length; i++) {
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var group = parse[i];
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expect(group.type).toEqual("close");
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}
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});
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});
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describe("A \\KaTeX parser", function() {
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it("should not fail", function() {
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expect("\\KaTeX").toParse();
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});
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});
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describe("A subscript and superscript parser", function() {
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it("should not fail on superscripts", function() {
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expect("x^2").toParse();
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});
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it("should not fail on subscripts", function() {
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expect("x_3").toParse();
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});
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it("should not fail on both subscripts and superscripts", function() {
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expect("x^2_3").toParse();
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expect("x_2^3").toParse();
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});
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it("should not fail when there is no nucleus", function() {
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expect("^3").toParse();
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expect("_2").toParse();
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expect("^3_2").toParse();
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expect("_2^3").toParse();
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});
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it("should produce supsubs for superscript", function() {
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var parse = getParsed("x^2")[0];
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expect(parse.type).toBe("supsub");
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expect(parse.value.base).toBeDefined();
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expect(parse.value.sup).toBeDefined();
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expect(parse.value.sub).toBeUndefined();
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});
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it("should produce supsubs for subscript", function() {
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var parse = getParsed("x_3")[0];
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expect(parse.type).toBe("supsub");
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expect(parse.value.base).toBeDefined();
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expect(parse.value.sub).toBeDefined();
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expect(parse.value.sup).toBeUndefined();
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});
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it("should produce supsubs for ^_", function() {
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var parse = getParsed("x^2_3")[0];
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expect(parse.type).toBe("supsub");
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expect(parse.value.base).toBeDefined();
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expect(parse.value.sup).toBeDefined();
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expect(parse.value.sub).toBeDefined();
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});
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it("should produce supsubs for _^", function() {
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var parse = getParsed("x_3^2")[0];
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expect(parse.type).toBe("supsub");
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expect(parse.value.base).toBeDefined();
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expect(parse.value.sup).toBeDefined();
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expect(parse.value.sub).toBeDefined();
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});
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it("should produce the same thing regardless of order", function() {
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var parseA = getParsed("x^2_3");
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var parseB = getParsed("x_3^2");
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expect(parseA).toEqual(parseB);
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});
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it("should not parse double subscripts or superscripts", function() {
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expect("x^x^x").toNotParse();
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expect("x_x_x").toNotParse();
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expect("x_x^x_x").toNotParse();
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expect("x_x^x^x").toNotParse();
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expect("x^x_x_x").toNotParse();
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expect("x^x_x^x").toNotParse();
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});
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it("should work correctly with {}s", function() {
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expect("x^{2+3}").toParse();
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expect("x_{3-2}").toParse();
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expect("x^{2+3}_3").toParse();
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expect("x^2_{3-2}").toParse();
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expect("x^{2+3}_{3-2}").toParse();
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expect("x_{3-2}^{2+3}").toParse();
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expect("x_3^{2+3}").toParse();
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expect("x_{3-2}^2").toParse();
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});
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it("should work with nested super/subscripts", function() {
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expect("x^{x^x}").toParse();
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expect("x^{x_x}").toParse();
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expect("x_{x^x}").toParse();
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expect("x_{x_x}").toParse();
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});
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});
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describe("A subscript and superscript tree-builder", function() {
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it("should not fail when there is no nucleus", function() {
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expect("^3").toBuild();
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expect("_2").toBuild();
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expect("^3_2").toBuild();
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expect("_2^3").toBuild();
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});
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});
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describe("A parser with limit controls", function() {
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it("should fail when the limit control is not preceded by an op node", function() {
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expect("3\\nolimits_2^2").toNotParse();
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expect("\\sqrt\\limits_2^2").toNotParse();
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expect("45 +\\nolimits 45").toNotParse();
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});
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it("should parse when the limit control directly follows an op node", function() {
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expect("\\int\\limits_2^2 3").toParse();
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expect("\\sum\\nolimits_3^4 4").toParse();
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});
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it("should parse when the limit control is in the sup/sub area of an op node", function() {
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expect("\\int_2^2\\limits").toParse();
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expect("\\int^2\\nolimits_2").toParse();
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expect("\\int_2\\limits^2").toParse();
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});
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it("should allow multiple limit controls in the sup/sub area of an op node", function() {
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expect("\\int_2\\nolimits^2\\limits 3").toParse();
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expect("\\int\\nolimits\\limits_2^2").toParse();
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expect("\\int\\limits\\limits\\limits_2^2").toParse();
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});
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it("should have the rightmost limit control determine the limits property " +
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"of the preceding op node", function() {
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var parsedInput = getParsed("\\int\\nolimits\\limits_2^2");
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expect(parsedInput[0].value.base.value.limits).toBe(true);
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parsedInput = getParsed("\\int\\limits_2\\nolimits^2");
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expect(parsedInput[0].value.base.value.limits).toBe(false);
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});
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});
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describe("A group parser", function() {
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it("should not fail", function() {
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expect("{xy}").toParse();
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});
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it("should produce a single ord", function() {
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var parse = getParsed("{xy}");
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expect(parse.length).toBe(1);
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var ord = parse[0];
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expect(ord.type).toMatch("ord");
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expect(ord.value).toBeTruthy();
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});
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});
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describe("An implicit group parser", function() {
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it("should not fail", function() {
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expect("\\Large x").toParse();
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expect("abc {abc \\Large xyz} abc").toParse();
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});
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it("should produce a single object", function() {
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var parse = getParsed("\\Large abc");
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expect(parse.length).toBe(1);
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var sizing = parse[0];
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expect(sizing.type).toEqual("sizing");
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expect(sizing.value).toBeTruthy();
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});
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it("should apply only after the function", function() {
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var parse = getParsed("a \\Large abc");
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expect(parse.length).toBe(2);
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var sizing = parse[1];
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expect(sizing.type).toEqual("sizing");
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expect(sizing.value.value.length).toBe(3);
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});
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it("should stop at the ends of groups", function() {
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var parse = getParsed("a { b \\Large c } d");
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var group = parse[1];
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var sizing = group.value[1];
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expect(sizing.type).toEqual("sizing");
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expect(sizing.value.value.length).toBe(1);
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});
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});
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|
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describe("A function parser", function() {
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it("should parse no argument functions", function() {
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expect("\\div").toParse();
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});
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it("should parse 1 argument functions", function() {
|
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expect("\\blue x").toParse();
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});
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it("should parse 2 argument functions", function() {
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expect("\\frac 1 2").toParse();
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});
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|
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it("should not parse 1 argument functions with no arguments", function() {
|
|
expect("\\blue").toNotParse();
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});
|
|
|
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it("should not parse 2 argument functions with 0 or 1 arguments", function() {
|
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expect("\\frac").toNotParse();
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expect("\\frac 1").toNotParse();
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});
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|
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it("should not parse a function with text right after it", function() {
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|
expect("\\redx").toNotParse();
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|
});
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it("should parse a function with a number right after it", function() {
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expect("\\frac12").toParse();
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|
});
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it("should parse some functions with text right after it", function() {
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|
expect("\\;x").toParse();
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|
});
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|
});
|
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|
|
describe("A frac parser", function() {
|
|
var expression = "\\frac{x}{y}";
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|
var dfracExpression = "\\dfrac{x}{y}";
|
|
var tfracExpression = "\\tfrac{x}{y}";
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|
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it("should not fail", function() {
|
|
expect(expression).toParse();
|
|
});
|
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|
|
it("should produce a frac", function() {
|
|
var parse = getParsed(expression)[0];
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expect(parse.type).toEqual("genfrac");
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expect(parse.value.numer).toBeDefined();
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expect(parse.value.denom).toBeDefined();
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});
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|
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it("should also parse dfrac and tfrac", function() {
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expect(dfracExpression).toParse();
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|
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expect(tfracExpression).toParse();
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});
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|
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it("should parse dfrac and tfrac as fracs", function() {
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|
var dfracParse = getParsed(dfracExpression)[0];
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expect(dfracParse.type).toEqual("genfrac");
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expect(dfracParse.value.numer).toBeDefined();
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expect(dfracParse.value.denom).toBeDefined();
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var tfracParse = getParsed(tfracExpression)[0];
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expect(tfracParse.type).toEqual("genfrac");
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expect(tfracParse.value.numer).toBeDefined();
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expect(tfracParse.value.denom).toBeDefined();
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});
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});
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|
|
describe("An over parser", function() {
|
|
var simpleOver = "1 \\over x";
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|
var complexOver = "1+2i \\over 3+4i";
|
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|
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it("should not fail", function() {
|
|
expect(simpleOver).toParse();
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|
expect(complexOver).toParse();
|
|
});
|
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|
|
it("should produce a frac", function() {
|
|
var parse;
|
|
|
|
parse = getParsed(simpleOver)[0];
|
|
|
|
expect(parse.type).toEqual("genfrac");
|
|
expect(parse.value.numer).toBeDefined();
|
|
expect(parse.value.denom).toBeDefined();
|
|
|
|
parse = getParsed(complexOver)[0];
|
|
|
|
expect(parse.type).toEqual("genfrac");
|
|
expect(parse.value.numer).toBeDefined();
|
|
expect(parse.value.denom).toBeDefined();
|
|
});
|
|
|
|
it("should create a numerator from the atoms before \\over", function() {
|
|
var parse = getParsed(complexOver)[0];
|
|
|
|
var numer = parse.value.numer;
|
|
expect(numer.value.length).toEqual(4);
|
|
});
|
|
|
|
it("should create a demonimator from the atoms after \\over", function() {
|
|
var parse = getParsed(complexOver)[0];
|
|
|
|
var denom = parse.value.numer;
|
|
expect(denom.value.length).toEqual(4);
|
|
});
|
|
|
|
it("should handle empty numerators", function() {
|
|
var emptyNumerator = "\\over x";
|
|
var parse = getParsed(emptyNumerator)[0];
|
|
expect(parse.type).toEqual("genfrac");
|
|
expect(parse.value.numer).toBeDefined();
|
|
expect(parse.value.denom).toBeDefined();
|
|
});
|
|
|
|
it("should handle empty denominators", function() {
|
|
var emptyDenominator = "1 \\over";
|
|
var parse = getParsed(emptyDenominator)[0];
|
|
expect(parse.type).toEqual("genfrac");
|
|
expect(parse.value.numer).toBeDefined();
|
|
expect(parse.value.denom).toBeDefined();
|
|
});
|
|
|
|
it("should handle \\displaystyle correctly", function() {
|
|
var displaystyleExpression = "\\displaystyle 1 \\over 2";
|
|
var parse = getParsed(displaystyleExpression)[0];
|
|
expect(parse.type).toEqual("genfrac");
|
|
expect(parse.value.numer.value[0].type).toEqual("styling");
|
|
expect(parse.value.denom).toBeDefined();
|
|
});
|
|
|
|
it("should handle nested factions", function() {
|
|
var nestedOverExpression = "{1 \\over 2} \\over 3";
|
|
var parse = getParsed(nestedOverExpression)[0];
|
|
expect(parse.type).toEqual("genfrac");
|
|
expect(parse.value.numer.value[0].type).toEqual("genfrac");
|
|
expect(parse.value.numer.value[0].value.numer.value[0].value).toEqual("1");
|
|
expect(parse.value.numer.value[0].value.denom.value[0].value).toEqual("2");
|
|
expect(parse.value.denom).toBeDefined();
|
|
expect(parse.value.denom.value[0].value).toEqual("3");
|
|
});
|
|
|
|
it("should fail with multiple overs in the same group", function() {
|
|
var badMultipleOvers = "1 \\over 2 + 3 \\over 4";
|
|
expect(badMultipleOvers).toNotParse();
|
|
|
|
var badOverChoose = "1 \\over 2 \\choose 3";
|
|
expect(badOverChoose).toNotParse();
|
|
});
|
|
});
|
|
|
|
describe("A sizing parser", function() {
|
|
var sizeExpression = "\\Huge{x}\\small{x}";
|
|
|
|
it("should not fail", function() {
|
|
expect(sizeExpression).toParse();
|
|
});
|
|
|
|
it("should produce a sizing node", function() {
|
|
var parse = getParsed(sizeExpression)[0];
|
|
|
|
expect(parse.type).toEqual("sizing");
|
|
expect(parse.value).toBeDefined();
|
|
});
|
|
});
|
|
|
|
describe("A text parser", function() {
|
|
var textExpression = "\\text{a b}";
|
|
var noBraceTextExpression = "\\text x";
|
|
var nestedTextExpression =
|
|
"\\text{a {b} \\blue{c} \\color{#fff}{x} \\llap{x}}";
|
|
var spaceTextExpression = "\\text{ a \\ }";
|
|
var leadingSpaceTextExpression = "\\text {moo}";
|
|
var badTextExpression = "\\text{a b%}";
|
|
var badFunctionExpression = "\\text{\\sqrt{x}}";
|
|
var mathTokenAfterText = "\\text{sin}^2";
|
|
|
|
it("should not fail", function() {
|
|
expect(textExpression).toParse();
|
|
});
|
|
|
|
it("should produce a text", function() {
|
|
var parse = getParsed(textExpression)[0];
|
|
|
|
expect(parse.type).toEqual("text");
|
|
expect(parse.value).toBeDefined();
|
|
});
|
|
|
|
it("should produce textords instead of mathords", function() {
|
|
var parse = getParsed(textExpression)[0];
|
|
var group = parse.value.body;
|
|
|
|
expect(group[0].type).toEqual("textord");
|
|
});
|
|
|
|
it("should not parse bad text", function() {
|
|
expect(badTextExpression).toNotParse();
|
|
});
|
|
|
|
it("should not parse bad functions inside text", function() {
|
|
expect(badFunctionExpression).toNotParse();
|
|
});
|
|
|
|
it("should parse text with no braces around it", function() {
|
|
expect(noBraceTextExpression).toParse();
|
|
});
|
|
|
|
it("should parse nested expressions", function() {
|
|
expect(nestedTextExpression).toParse();
|
|
});
|
|
|
|
it("should contract spaces", function() {
|
|
var parse = getParsed(spaceTextExpression)[0];
|
|
var group = parse.value.body;
|
|
|
|
expect(group[0].type).toEqual("spacing");
|
|
expect(group[1].type).toEqual("textord");
|
|
expect(group[2].type).toEqual("spacing");
|
|
expect(group[3].type).toEqual("spacing");
|
|
});
|
|
|
|
it("should accept math mode tokens after its argument", function() {
|
|
expect(mathTokenAfterText).toParse();
|
|
});
|
|
|
|
it("should ignore a space before the text group", function() {
|
|
var parse = getParsed(leadingSpaceTextExpression)[0];
|
|
// [m, o, o]
|
|
expect(parse.value.body.length).toBe(3);
|
|
expect(
|
|
parse.value.body.map(function(n) { return n.value; }).join("")
|
|
).toBe("moo");
|
|
});
|
|
});
|
|
|
|
describe("A color parser", function() {
|
|
var colorExpression = "\\blue{x}";
|
|
var newColorExpression = "\\redA{x}";
|
|
var customColorExpression = "\\color{#fA6}{x}";
|
|
var badCustomColorExpression = "\\color{bad-color}{x}";
|
|
|
|
it("should not fail", function() {
|
|
expect(colorExpression).toParse();
|
|
});
|
|
|
|
it("should build a color node", function() {
|
|
var parse = getParsed(colorExpression)[0];
|
|
|
|
expect(parse.type).toEqual("color");
|
|
expect(parse.value.color).toBeDefined();
|
|
expect(parse.value.value).toBeDefined();
|
|
});
|
|
|
|
it("should parse a custom color", function() {
|
|
expect(customColorExpression).toParse();
|
|
});
|
|
|
|
it("should correctly extract the custom color", function() {
|
|
var parse = getParsed(customColorExpression)[0];
|
|
|
|
expect(parse.value.color).toEqual("#fA6");
|
|
});
|
|
|
|
it("should not parse a bad custom color", function() {
|
|
expect(badCustomColorExpression).toNotParse();
|
|
});
|
|
|
|
it("should parse new colors from the branding guide", function() {
|
|
expect(newColorExpression).toParse();
|
|
});
|
|
|
|
it("should have correct greediness", function() {
|
|
expect("\\color{red}a").toParse();
|
|
expect("\\color{red}{\\text{a}}").toParse();
|
|
expect("\\color{red}\\text{a}").toNotParse();
|
|
expect("\\color{red}\\frac12").toNotParse();
|
|
});
|
|
});
|
|
|
|
describe("A tie parser", function() {
|
|
var mathTie = "a~b";
|
|
var textTie = "\\text{a~ b}";
|
|
|
|
it("should parse ties in math mode", function() {
|
|
expect(mathTie).toParse();
|
|
});
|
|
|
|
it("should parse ties in text mode", function() {
|
|
expect(textTie).toParse();
|
|
});
|
|
|
|
it("should produce spacing in math mode", function() {
|
|
var parse = getParsed(mathTie);
|
|
|
|
expect(parse[1].type).toEqual("spacing");
|
|
});
|
|
|
|
it("should produce spacing in text mode", function() {
|
|
var text = getParsed(textTie)[0];
|
|
var parse = text.value.body;
|
|
|
|
expect(parse[1].type).toEqual("spacing");
|
|
});
|
|
|
|
it("should not contract with spaces in text mode", function() {
|
|
var text = getParsed(textTie)[0];
|
|
var parse = text.value.body;
|
|
|
|
expect(parse[2].type).toEqual("spacing");
|
|
});
|
|
});
|
|
|
|
describe("A delimiter sizing parser", function() {
|
|
var normalDelim = "\\bigl |";
|
|
var notDelim = "\\bigl x";
|
|
var bigDelim = "\\Biggr \\langle";
|
|
|
|
it("should parse normal delimiters", function() {
|
|
expect(normalDelim).toParse();
|
|
expect(bigDelim).toParse();
|
|
});
|
|
|
|
it("should not parse not-delimiters", function() {
|
|
expect(notDelim).toNotParse();
|
|
});
|
|
|
|
it("should produce a delimsizing", function() {
|
|
var parse = getParsed(normalDelim)[0];
|
|
|
|
expect(parse.type).toEqual("delimsizing");
|
|
});
|
|
|
|
it("should produce the correct direction delimiter", function() {
|
|
var leftParse = getParsed(normalDelim)[0];
|
|
var rightParse = getParsed(bigDelim)[0];
|
|
|
|
expect(leftParse.value.delimType).toEqual("open");
|
|
expect(rightParse.value.delimType).toEqual("close");
|
|
});
|
|
|
|
it("should parse the correct size delimiter", function() {
|
|
var smallParse = getParsed(normalDelim)[0];
|
|
var bigParse = getParsed(bigDelim)[0];
|
|
|
|
expect(smallParse.value.size).toEqual(1);
|
|
expect(bigParse.value.size).toEqual(4);
|
|
});
|
|
});
|
|
|
|
describe("An overline parser", function() {
|
|
var overline = "\\overline{x}";
|
|
|
|
it("should not fail", function() {
|
|
expect(overline).toParse();
|
|
});
|
|
|
|
it("should produce an overline", function() {
|
|
var parse = getParsed(overline)[0];
|
|
|
|
expect(parse.type).toEqual("overline");
|
|
});
|
|
});
|
|
|
|
describe("A rule parser", function() {
|
|
var emRule = "\\rule{1em}{2em}";
|
|
var exRule = "\\rule{1ex}{2em}";
|
|
var badUnitRule = "\\rule{1px}{2em}";
|
|
var noNumberRule = "\\rule{1em}{em}";
|
|
var incompleteRule = "\\rule{1em}";
|
|
var hardNumberRule = "\\rule{ 01.24ex}{2.450 em }";
|
|
|
|
it("should not fail", function() {
|
|
expect(emRule).toParse();
|
|
expect(exRule).toParse();
|
|
});
|
|
|
|
it("should not parse invalid units", function() {
|
|
expect(badUnitRule).toNotParse();
|
|
|
|
expect(noNumberRule).toNotParse();
|
|
});
|
|
|
|
it("should not parse incomplete rules", function() {
|
|
expect(incompleteRule).toNotParse();
|
|
});
|
|
|
|
it("should produce a rule", function() {
|
|
var parse = getParsed(emRule)[0];
|
|
|
|
expect(parse.type).toEqual("rule");
|
|
});
|
|
|
|
it("should list the correct units", function() {
|
|
var emParse = getParsed(emRule)[0];
|
|
var exParse = getParsed(exRule)[0];
|
|
|
|
expect(emParse.value.width.unit).toEqual("em");
|
|
expect(emParse.value.height.unit).toEqual("em");
|
|
|
|
expect(exParse.value.width.unit).toEqual("ex");
|
|
expect(exParse.value.height.unit).toEqual("em");
|
|
});
|
|
|
|
it("should parse the number correctly", function() {
|
|
var hardNumberParse = getParsed(hardNumberRule)[0];
|
|
|
|
expect(hardNumberParse.value.width.number).toBeCloseTo(1.24);
|
|
expect(hardNumberParse.value.height.number).toBeCloseTo(2.45);
|
|
});
|
|
|
|
it("should parse negative sizes", function() {
|
|
var parse = getParsed("\\rule{-1em}{- 0.2em}")[0];
|
|
|
|
expect(parse.value.width.number).toBeCloseTo(-1);
|
|
expect(parse.value.height.number).toBeCloseTo(-0.2);
|
|
});
|
|
});
|
|
|
|
describe("A left/right parser", function() {
|
|
var normalLeftRight = "\\left( \\dfrac{x}{y} \\right)";
|
|
var emptyRight = "\\left( \\dfrac{x}{y} \\right.";
|
|
|
|
it("should not fail", function() {
|
|
expect(normalLeftRight).toParse();
|
|
});
|
|
|
|
it("should produce a leftright", function() {
|
|
var parse = getParsed(normalLeftRight)[0];
|
|
|
|
expect(parse.type).toEqual("leftright");
|
|
expect(parse.value.left).toEqual("(");
|
|
expect(parse.value.right).toEqual(")");
|
|
});
|
|
|
|
it("should error when it is mismatched", function() {
|
|
var unmatchedLeft = "\\left( \\dfrac{x}{y}";
|
|
var unmatchedRight = "\\dfrac{x}{y} \\right)";
|
|
|
|
expect(unmatchedLeft).toNotParse();
|
|
|
|
expect(unmatchedRight).toNotParse();
|
|
});
|
|
|
|
it("should error when braces are mismatched", function() {
|
|
var unmatched = "{ \\left( \\dfrac{x}{y} } \\right)";
|
|
expect(unmatched).toNotParse();
|
|
});
|
|
|
|
it("should error when non-delimiters are provided", function() {
|
|
var nonDelimiter = "\\left$ \\dfrac{x}{y} \\right)";
|
|
expect(nonDelimiter).toNotParse();
|
|
});
|
|
|
|
it("should parse the empty '.' delimiter", function() {
|
|
expect(emptyRight).toParse();
|
|
});
|
|
|
|
it("should parse the '.' delimiter with normal sizes", function() {
|
|
var normalEmpty = "\\Bigl .";
|
|
expect(normalEmpty).toParse();
|
|
});
|
|
});
|
|
|
|
describe("A begin/end parser", function() {
|
|
|
|
it("should parse a simple environment", function() {
|
|
expect("\\begin{matrix}a&b\\\\c&d\\end{matrix}").toParse();
|
|
});
|
|
|
|
it("should parse an environment with argument", function() {
|
|
expect("\\begin{array}{cc}a&b\\\\c&d\\end{array}").toParse();
|
|
});
|
|
|
|
it("should error when name is mismatched", function() {
|
|
expect("\\begin{matrix}a&b\\\\c&d\\end{pmatrix}").toNotParse();
|
|
});
|
|
|
|
it("should error when commands are mismatched", function() {
|
|
expect("\\begin{matrix}a&b\\\\c&d\\right{pmatrix}").toNotParse();
|
|
});
|
|
|
|
it("should error when end is missing", function() {
|
|
expect("\\begin{matrix}a&b\\\\c&d").toNotParse();
|
|
});
|
|
|
|
it("should error when braces are mismatched", function() {
|
|
expect("{\\begin{matrix}a&b\\\\c&d}\\end{matrix}").toNotParse();
|
|
});
|
|
|
|
it("should cooperate with infix notation", function() {
|
|
expect("\\begin{matrix}0&1\\over2&3\\\\4&5&6\\end{matrix}").toParse();
|
|
});
|
|
|
|
it("should nest", function() {
|
|
var m1 = "\\begin{pmatrix}1&2\\\\3&4\\end{pmatrix}";
|
|
var m2 = "\\begin{array}{rl}" + m1 + "&0\\\\0&" + m1 + "\\end{array}";
|
|
expect(m2).toParse();
|
|
});
|
|
|
|
it("should allow \\cr as a line terminator", function() {
|
|
expect("\\begin{matrix}a&b\\cr c&d\\end{matrix}").toParse();
|
|
});
|
|
});
|
|
|
|
describe("A sqrt parser", function() {
|
|
var sqrt = "\\sqrt{x}";
|
|
var missingGroup = "\\sqrt";
|
|
|
|
it("should parse square roots", function() {
|
|
expect(sqrt).toParse();
|
|
});
|
|
|
|
it("should error when there is no group", function() {
|
|
expect(missingGroup).toNotParse();
|
|
});
|
|
|
|
it("should produce sqrts", function() {
|
|
var parse = getParsed(sqrt)[0];
|
|
|
|
expect(parse.type).toEqual("sqrt");
|
|
});
|
|
});
|
|
|
|
describe("A TeX-compliant parser", function() {
|
|
it("should work", function() {
|
|
expect("\\frac 2 3").toParse();
|
|
});
|
|
|
|
it("should fail if there are not enough arguments", function() {
|
|
var missingGroups = [
|
|
"\\frac{x}",
|
|
"\\color{#fff}",
|
|
"\\rule{1em}",
|
|
"\\llap",
|
|
"\\bigl",
|
|
"\\text",
|
|
];
|
|
|
|
for (var i = 0; i < missingGroups.length; i++) {
|
|
expect(missingGroups[i]).toNotParse();
|
|
}
|
|
});
|
|
|
|
it("should fail when there are missing sup/subscripts", function() {
|
|
expect("x^").toNotParse();
|
|
expect("x_").toNotParse();
|
|
});
|
|
|
|
it("should fail when arguments require arguments", function() {
|
|
var badArguments = [
|
|
"\\frac \\frac x y z",
|
|
"\\frac x \\frac y z",
|
|
"\\frac \\sqrt x y",
|
|
"\\frac x \\sqrt y",
|
|
"\\frac \\llap x y",
|
|
"\\frac x \\llap y",
|
|
// This actually doesn't work in real TeX, but it is suprisingly
|
|
// hard to get this to correctly work. So, we take hit of very small
|
|
// amounts of non-compatiblity in order for the rest of the tests to
|
|
// work
|
|
// "\\llap \\frac x y",
|
|
"\\llap \\llap x",
|
|
"\\sqrt \\llap x",
|
|
];
|
|
|
|
for (var i = 0; i < badArguments.length; i++) {
|
|
expect(badArguments[i]).toNotParse();
|
|
}
|
|
});
|
|
|
|
it("should work when the arguments have braces", function() {
|
|
var goodArguments = [
|
|
"\\frac {\\frac x y} z",
|
|
"\\frac x {\\frac y z}",
|
|
"\\frac {\\sqrt x} y",
|
|
"\\frac x {\\sqrt y}",
|
|
"\\frac {\\llap x} y",
|
|
"\\frac x {\\llap y}",
|
|
"\\llap {\\frac x y}",
|
|
"\\llap {\\llap x}",
|
|
"\\sqrt {\\llap x}",
|
|
];
|
|
|
|
for (var i = 0; i < goodArguments.length; i++) {
|
|
expect(goodArguments[i]).toParse();
|
|
}
|
|
});
|
|
|
|
it("should fail when sup/subscripts require arguments", function() {
|
|
var badSupSubscripts = [
|
|
"x^\\sqrt x",
|
|
"x^\\llap x",
|
|
"x_\\sqrt x",
|
|
"x_\\llap x",
|
|
];
|
|
|
|
for (var i = 0; i < badSupSubscripts.length; i++) {
|
|
expect(badSupSubscripts[i]).toNotParse();
|
|
}
|
|
});
|
|
|
|
it("should work when sup/subscripts arguments have braces", function() {
|
|
var goodSupSubscripts = [
|
|
"x^{\\sqrt x}",
|
|
"x^{\\llap x}",
|
|
"x_{\\sqrt x}",
|
|
"x_{\\llap x}",
|
|
];
|
|
|
|
for (var i = 0; i < goodSupSubscripts.length; i++) {
|
|
expect(goodSupSubscripts[i]).toParse();
|
|
}
|
|
});
|
|
|
|
it("should parse multiple primes correctly", function() {
|
|
expect("x''''").toParse();
|
|
expect("x_2''").toParse();
|
|
expect("x''_2").toParse();
|
|
expect("x'_2'").toParse();
|
|
});
|
|
|
|
it("should fail when sup/subscripts are interspersed with arguments", function() {
|
|
expect("\\sqrt^23").toNotParse();
|
|
expect("\\frac^234").toNotParse();
|
|
expect("\\frac2^34").toNotParse();
|
|
});
|
|
|
|
it("should succeed when sup/subscripts come after whole functions", function() {
|
|
expect("\\sqrt2^3").toParse();
|
|
expect("\\frac23^4").toParse();
|
|
});
|
|
|
|
it("should succeed with a sqrt around a text/frac", function() {
|
|
expect("\\sqrt \\frac x y").toParse();
|
|
expect("\\sqrt \\text x").toParse();
|
|
expect("x^\\frac x y").toParse();
|
|
expect("x_\\text x").toParse();
|
|
});
|
|
|
|
it("should fail when arguments are \\left", function() {
|
|
var badLeftArguments = [
|
|
"\\frac \\left( x \\right) y",
|
|
"\\frac x \\left( y \\right)",
|
|
"\\llap \\left( x \\right)",
|
|
"\\sqrt \\left( x \\right)",
|
|
"x^\\left( x \\right)",
|
|
];
|
|
|
|
for (var i = 0; i < badLeftArguments.length; i++) {
|
|
expect(badLeftArguments[i]).toNotParse();
|
|
}
|
|
});
|
|
|
|
it("should succeed when there are braces around the \\left/\\right", function() {
|
|
var goodLeftArguments = [
|
|
"\\frac {\\left( x \\right)} y",
|
|
"\\frac x {\\left( y \\right)}",
|
|
"\\llap {\\left( x \\right)}",
|
|
"\\sqrt {\\left( x \\right)}",
|
|
"x^{\\left( x \\right)}",
|
|
];
|
|
|
|
for (var i = 0; i < goodLeftArguments.length; i++) {
|
|
expect(goodLeftArguments[i]).toParse();
|
|
}
|
|
});
|
|
});
|
|
|
|
describe("A style change parser", function() {
|
|
it("should not fail", function() {
|
|
expect("\\displaystyle x").toParse();
|
|
expect("\\textstyle x").toParse();
|
|
expect("\\scriptstyle x").toParse();
|
|
expect("\\scriptscriptstyle x").toParse();
|
|
});
|
|
|
|
it("should produce the correct style", function() {
|
|
var displayParse = getParsed("\\displaystyle x")[0];
|
|
expect(displayParse.value.style).toEqual("display");
|
|
|
|
var scriptscriptParse = getParsed("\\scriptscriptstyle x")[0];
|
|
expect(scriptscriptParse.value.style).toEqual("scriptscript");
|
|
});
|
|
|
|
it("should only change the style within its group", function() {
|
|
var text = "a b { c d \\displaystyle e f } g h";
|
|
var parse = getParsed(text);
|
|
|
|
var displayNode = parse[2].value[2];
|
|
|
|
expect(displayNode.type).toEqual("styling");
|
|
|
|
var displayBody = displayNode.value.value;
|
|
|
|
expect(displayBody.length).toEqual(2);
|
|
expect(displayBody[0].value).toEqual("e");
|
|
});
|
|
});
|
|
|
|
describe("A font parser", function() {
|
|
it("should parse \\mathrm, \\mathbb, and \\mathit", function() {
|
|
expect("\\mathrm x").toParse();
|
|
expect("\\mathbb x").toParse();
|
|
expect("\\mathit x").toParse();
|
|
expect("\\mathrm {x + 1}").toParse();
|
|
expect("\\mathbb {x + 1}").toParse();
|
|
expect("\\mathit {x + 1}").toParse();
|
|
});
|
|
|
|
it("should parse \\mathcal and \\mathfrak", function() {
|
|
expect("\\mathcal{ABC123}").toParse();
|
|
expect("\\mathfrak{abcABC123}").toParse();
|
|
});
|
|
|
|
it("should produce the correct fonts", function() {
|
|
var mathbbParse = getParsed("\\mathbb x")[0];
|
|
expect(mathbbParse.value.font).toEqual("mathbb");
|
|
expect(mathbbParse.value.type).toEqual("font");
|
|
|
|
var mathrmParse = getParsed("\\mathrm x")[0];
|
|
expect(mathrmParse.value.font).toEqual("mathrm");
|
|
expect(mathrmParse.value.type).toEqual("font");
|
|
|
|
var mathitParse = getParsed("\\mathit x")[0];
|
|
expect(mathitParse.value.font).toEqual("mathit");
|
|
expect(mathitParse.value.type).toEqual("font");
|
|
|
|
var mathcalParse = getParsed("\\mathcal C")[0];
|
|
expect(mathcalParse.value.font).toEqual("mathcal");
|
|
expect(mathcalParse.value.type).toEqual("font");
|
|
|
|
var mathfrakParse = getParsed("\\mathfrak C")[0];
|
|
expect(mathfrakParse.value.font).toEqual("mathfrak");
|
|
expect(mathfrakParse.value.type).toEqual("font");
|
|
});
|
|
|
|
it("should parse nested font commands", function() {
|
|
var nestedParse = getParsed("\\mathbb{R \\neq \\mathrm{R}}")[0];
|
|
expect(nestedParse.value.font).toEqual("mathbb");
|
|
expect(nestedParse.value.type).toEqual("font");
|
|
|
|
expect(nestedParse.value.body.value.length).toEqual(3);
|
|
var bbBody = nestedParse.value.body.value;
|
|
expect(bbBody[0].type).toEqual("mathord");
|
|
expect(bbBody[1].type).toEqual("rel");
|
|
expect(bbBody[2].type).toEqual("font");
|
|
expect(bbBody[2].value.font).toEqual("mathrm");
|
|
expect(bbBody[2].value.type).toEqual("font");
|
|
});
|
|
|
|
it("should work with \\color", function() {
|
|
var colorMathbbParse = getParsed("\\color{blue}{\\mathbb R}")[0];
|
|
expect(colorMathbbParse.value.type).toEqual("color");
|
|
expect(colorMathbbParse.value.color).toEqual("blue");
|
|
var body = colorMathbbParse.value.value;
|
|
expect(body.length).toEqual(1);
|
|
expect(body[0].value.type).toEqual("font");
|
|
expect(body[0].value.font).toEqual("mathbb");
|
|
});
|
|
|
|
it("should not parse a series of font commands", function() {
|
|
expect("\\mathbb \\mathrm R").toNotParse();
|
|
});
|
|
|
|
it("should nest fonts correctly", function() {
|
|
var bf = getParsed("\\mathbf{a\\mathrm{b}c}")[0];
|
|
expect(bf.value.type).toEqual("font");
|
|
expect(bf.value.font).toEqual("mathbf");
|
|
expect(bf.value.body.value.length).toEqual(3);
|
|
expect(bf.value.body.value[0].value).toEqual("a");
|
|
expect(bf.value.body.value[1].value.type).toEqual("font");
|
|
expect(bf.value.body.value[1].value.font).toEqual("mathrm");
|
|
expect(bf.value.body.value[2].value).toEqual("c");
|
|
});
|
|
|
|
it("should have the correct greediness", function() {
|
|
expect("e^\\mathbf{x}").toParse();
|
|
});
|
|
});
|
|
|
|
describe("An HTML font tree-builder", function() {
|
|
it("should render \\mathbb{R} with the correct font", function() {
|
|
var markup = katex.renderToString("\\mathbb{R}");
|
|
expect(markup).toContain("<span class=\"mord mathbb\">R</span>");
|
|
});
|
|
|
|
it("should render \\mathrm{R} with the correct font", function() {
|
|
var markup = katex.renderToString("\\mathrm{R}");
|
|
expect(markup).toContain("<span class=\"mord mathrm\">R</span>");
|
|
});
|
|
|
|
it("should render \\mathcal{R} with the correct font", function() {
|
|
var markup = katex.renderToString("\\mathcal{R}");
|
|
expect(markup).toContain("<span class=\"mord mathcal\">R</span>");
|
|
});
|
|
|
|
it("should render \\mathfrak{R} with the correct font", function() {
|
|
var markup = katex.renderToString("\\mathfrak{R}");
|
|
expect(markup).toContain("<span class=\"mord mathfrak\">R</span>");
|
|
});
|
|
|
|
it("should render a combination of font and color changes", function() {
|
|
var markup = katex.renderToString("\\color{blue}{\\mathbb R}");
|
|
var span = "<span class=\"mord mathbb\" style=\"color:blue;\">R</span>";
|
|
expect(markup).toContain(span);
|
|
|
|
markup = katex.renderToString("\\mathbb{\\color{blue}{R}}");
|
|
span = "<span class=\"mord mathbb\" style=\"color:blue;\">R</span>";
|
|
expect(markup).toContain(span);
|
|
});
|
|
});
|
|
|
|
|
|
describe("A MathML font tree-builder", function() {
|
|
var contents = "Ax2k\\omega\\Omega\\imath+";
|
|
|
|
it("should render " + contents + " with the correct mathvariants", function() {
|
|
var tree = getParsed(contents);
|
|
var markup = buildMathML(tree, contents, defaultOptions).toMarkup();
|
|
expect(markup).toContain("<mi>A</mi>");
|
|
expect(markup).toContain("<mi>x</mi>");
|
|
expect(markup).toContain("<mn>2</mn>");
|
|
expect(markup).toContain("<mi>\u03c9</mi>"); // \omega
|
|
expect(markup).toContain("<mi mathvariant=\"normal\">\u03A9</mi>"); // \Omega
|
|
expect(markup).toContain("<mi>\u0131</mi>"); // \imath
|
|
expect(markup).toContain("<mo>+</mo>");
|
|
});
|
|
|
|
it("should render \\mathbb{" + contents + "} with the correct mathvariants", function() {
|
|
var tex = "\\mathbb{" + contents + "}";
|
|
var tree = getParsed(tex);
|
|
var markup = buildMathML(tree, tex, defaultOptions).toMarkup();
|
|
expect(markup).toContain("<mi mathvariant=\"double-struck\">A</mi>");
|
|
expect(markup).toContain("<mi>x</mi>");
|
|
expect(markup).toContain("<mn mathvariant=\"normal\">2</mn>");
|
|
expect(markup).toContain("<mi>\u03c9</mi>"); // \omega
|
|
expect(markup).toContain("<mi mathvariant=\"normal\">\u03A9</mi>"); // \Omega
|
|
expect(markup).toContain("<mi>\u0131</mi>"); // \imath
|
|
expect(markup).toContain("<mo>+</mo>");
|
|
});
|
|
|
|
it("should render \\mathrm{" + contents + "} with the correct mathvariants", function() {
|
|
var tex = "\\mathrm{" + contents + "}";
|
|
var tree = getParsed(tex);
|
|
var markup = buildMathML(tree, tex, defaultOptions).toMarkup();
|
|
expect(markup).toContain("<mi mathvariant=\"normal\">A</mi>");
|
|
expect(markup).toContain("<mi mathvariant=\"normal\">x</mi>");
|
|
expect(markup).toContain("<mn mathvariant=\"normal\">2</mn>");
|
|
expect(markup).toContain("<mi>\u03c9</mi>"); // \omega
|
|
expect(markup).toContain("<mi mathvariant=\"normal\">\u03A9</mi>"); // \Omega
|
|
expect(markup).toContain("<mi>\u0131</mi>"); // \imath
|
|
expect(markup).toContain("<mo>+</mo>");
|
|
});
|
|
|
|
it("should render \\mathit{" + contents + "} with the correct mathvariants", function() {
|
|
var tex = "\\mathit{" + contents + "}";
|
|
var tree = getParsed(tex);
|
|
var markup = buildMathML(tree, tex, defaultOptions).toMarkup();
|
|
expect(markup).toContain("<mi mathvariant=\"italic\">A</mi>");
|
|
expect(markup).toContain("<mi mathvariant=\"italic\">x</mi>");
|
|
expect(markup).toContain("<mn mathvariant=\"italic\">2</mn>");
|
|
expect(markup).toContain("<mi mathvariant=\"italic\">\u03c9</mi>"); // \omega
|
|
expect(markup).toContain("<mi mathvariant=\"italic\">\u03A9</mi>"); // \Omega
|
|
expect(markup).toContain("<mi mathvariant=\"italic\">\u0131</mi>"); // \imath
|
|
expect(markup).toContain("<mo>+</mo>");
|
|
});
|
|
|
|
it("should render \\mathbf{" + contents + "} with the correct mathvariants", function() {
|
|
var tex = "\\mathbf{" + contents + "}";
|
|
var tree = getParsed(tex);
|
|
var markup = buildMathML(tree, tex, defaultOptions).toMarkup();
|
|
expect(markup).toContain("<mi mathvariant=\"bold\">A</mi>");
|
|
expect(markup).toContain("<mi mathvariant=\"bold\">x</mi>");
|
|
expect(markup).toContain("<mn mathvariant=\"bold\">2</mn>");
|
|
expect(markup).toContain("<mi>\u03c9</mi>"); // \omega
|
|
expect(markup).toContain("<mi mathvariant=\"bold\">\u03A9</mi>"); // \Omega
|
|
expect(markup).toContain("<mi>\u0131</mi>"); // \imath
|
|
expect(markup).toContain("<mo>+</mo>");
|
|
});
|
|
|
|
it("should render \\mathcal{" + contents + "} with the correct mathvariants", function() {
|
|
var tex = "\\mathcal{" + contents + "}";
|
|
var tree = getParsed(tex);
|
|
var markup = buildMathML(tree, tex, defaultOptions).toMarkup();
|
|
expect(markup).toContain("<mi mathvariant=\"script\">A</mi>");
|
|
expect(markup).toContain("<mi>x</mi>"); // script is caps only
|
|
expect(markup).toContain("<mn mathvariant=\"script\">2</mn>");
|
|
// MathJax marks everything below as "script" except \omega
|
|
// We don't have these glyphs in "caligraphic" and neither does MathJax
|
|
expect(markup).toContain("<mi>\u03c9</mi>"); // \omega
|
|
expect(markup).toContain("<mi mathvariant=\"normal\">\u03A9</mi>"); // \Omega
|
|
expect(markup).toContain("<mi>\u0131</mi>"); // \imath
|
|
expect(markup).toContain("<mo>+</mo>");
|
|
});
|
|
|
|
it("should render \\mathfrak{" + contents + "} with the correct mathvariants", function() {
|
|
var tex = "\\mathfrak{" + contents + "}";
|
|
var tree = getParsed(tex);
|
|
var markup = buildMathML(tree, tex, defaultOptions).toMarkup();
|
|
expect(markup).toContain("<mi mathvariant=\"fraktur\">A</mi>");
|
|
expect(markup).toContain("<mi mathvariant=\"fraktur\">x</mi>");
|
|
expect(markup).toContain("<mn mathvariant=\"fraktur\">2</mn>");
|
|
// MathJax marks everything below as "fraktur" except \omega
|
|
// We don't have these glyphs in "fraktur" and neither does MathJax
|
|
expect(markup).toContain("<mi>\u03c9</mi>"); // \omega
|
|
expect(markup).toContain("<mi mathvariant=\"normal\">\u03A9</mi>"); // \Omega
|
|
expect(markup).toContain("<mi>\u0131</mi>"); // \imath
|
|
expect(markup).toContain("<mo>+</mo>");
|
|
});
|
|
|
|
it("should render \\mathscr{" + contents + "} with the correct mathvariants", function() {
|
|
var tex = "\\mathscr{" + contents + "}";
|
|
var tree = getParsed(tex);
|
|
var markup = buildMathML(tree, tex, defaultOptions).toMarkup();
|
|
expect(markup).toContain("<mi mathvariant=\"script\">A</mi>");
|
|
// MathJax marks everything below as "script" except \omega
|
|
// We don't have these glyphs in "script" and neither does MathJax
|
|
expect(markup).toContain("<mi>x</mi>");
|
|
expect(markup).toContain("<mn mathvariant=\"normal\">2</mn>");
|
|
expect(markup).toContain("<mi>\u03c9</mi>"); // \omega
|
|
expect(markup).toContain("<mi mathvariant=\"normal\">\u03A9</mi>"); // \Omega
|
|
expect(markup).toContain("<mi>\u0131</mi>"); // \imath
|
|
expect(markup).toContain("<mo>+</mo>");
|
|
});
|
|
|
|
it("should render \\mathsf{" + contents + "} with the correct mathvariants", function() {
|
|
var tex = "\\mathsf{" + contents + "}";
|
|
var tree = getParsed(tex);
|
|
var markup = buildMathML(tree, tex, defaultOptions).toMarkup();
|
|
expect(markup).toContain("<mi mathvariant=\"sans-serif\">A</mi>");
|
|
expect(markup).toContain("<mi mathvariant=\"sans-serif\">x</mi>");
|
|
expect(markup).toContain("<mn mathvariant=\"sans-serif\">2</mn>");
|
|
expect(markup).toContain("<mi>\u03c9</mi>"); // \omega
|
|
expect(markup).toContain("<mi mathvariant=\"sans-serif\">\u03A9</mi>"); // \Omega
|
|
expect(markup).toContain("<mi>\u0131</mi>"); // \imath
|
|
expect(markup).toContain("<mo>+</mo>");
|
|
});
|
|
|
|
it("should render a combination of font and color changes", function() {
|
|
var tex = "\\color{blue}{\\mathbb R}";
|
|
var tree = getParsed(tex);
|
|
var markup = buildMathML(tree, tex, defaultOptions).toMarkup();
|
|
var node = "<mstyle mathcolor=\"blue\">" +
|
|
"<mi mathvariant=\"double-struck\">R</mi>" +
|
|
"</mstyle>";
|
|
expect(markup).toContain(node);
|
|
|
|
// reverse the order of the commands
|
|
tex = "\\mathbb{\\color{blue}{R}}";
|
|
tree = getParsed(tex);
|
|
markup = buildMathML(tree, tex, defaultOptions).toMarkup();
|
|
node = "<mstyle mathcolor=\"blue\">" +
|
|
"<mi mathvariant=\"double-struck\">R</mi>" +
|
|
"</mstyle>";
|
|
expect(markup).toContain(node);
|
|
});
|
|
});
|
|
|
|
describe("A bin builder", function() {
|
|
it("should create mbins normally", function() {
|
|
var built = getBuilt("x + y");
|
|
|
|
expect(built[1].classes).toContain("mbin");
|
|
});
|
|
|
|
it("should create ords when at the beginning of lists", function() {
|
|
var built = getBuilt("+ x");
|
|
|
|
expect(built[0].classes).toContain("mord");
|
|
expect(built[0].classes).not.toContain("mbin");
|
|
});
|
|
|
|
it("should create ords after some other objects", function() {
|
|
expect(getBuilt("x + + 2")[2].classes).toContain("mord");
|
|
expect(getBuilt("( + 2")[1].classes).toContain("mord");
|
|
expect(getBuilt("= + 2")[1].classes).toContain("mord");
|
|
expect(getBuilt("\\sin + 2")[1].classes).toContain("mord");
|
|
expect(getBuilt(", + 2")[1].classes).toContain("mord");
|
|
});
|
|
|
|
it("should correctly interact with color objects", function() {
|
|
expect(getBuilt("\\blue{x}+y")[1].classes).toContain("mbin");
|
|
expect(getBuilt("\\blue{x+}+y")[1].classes).toContain("mord");
|
|
});
|
|
});
|
|
|
|
describe("A markup generator", function() {
|
|
it("marks trees up", function() {
|
|
// Just a few quick sanity checks here...
|
|
var markup = katex.renderToString("\\sigma^2");
|
|
expect(markup.indexOf("<span")).toBe(0);
|
|
expect(markup).toContain("\u03c3"); // sigma
|
|
expect(markup).toContain("margin-right");
|
|
expect(markup).not.toContain("marginRight");
|
|
});
|
|
|
|
it("generates both MathML and HTML", function() {
|
|
var markup = katex.renderToString("a");
|
|
|
|
expect(markup).toContain("<span");
|
|
expect(markup).toContain("<math");
|
|
});
|
|
});
|
|
|
|
describe("A parse tree generator", function() {
|
|
it("generates a tree", function() {
|
|
var tree = katex.__parse("\\sigma^2");
|
|
expect(JSON.stringify(tree)).toEqual(JSON.stringify([
|
|
{
|
|
"type": "supsub",
|
|
"value": {
|
|
"base": {
|
|
"type": "mathord",
|
|
"value": "\\sigma",
|
|
"mode": "math",
|
|
},
|
|
"sup": {
|
|
"type": "textord",
|
|
"value": "2",
|
|
"mode": "math",
|
|
},
|
|
"sub": undefined,
|
|
},
|
|
"mode": "math",
|
|
},
|
|
]));
|
|
});
|
|
});
|
|
|
|
describe("An accent parser", function() {
|
|
it("should not fail", function() {
|
|
expect("\\vec{x}").toParse();
|
|
expect("\\vec{x^2}").toParse();
|
|
expect("\\vec{x}^2").toParse();
|
|
expect("\\vec x").toParse();
|
|
});
|
|
|
|
it("should produce accents", function() {
|
|
var parse = getParsed("\\vec x")[0];
|
|
|
|
expect(parse.type).toEqual("accent");
|
|
});
|
|
|
|
it("should be grouped more tightly than supsubs", function() {
|
|
var parse = getParsed("\\vec x^2")[0];
|
|
|
|
expect(parse.type).toEqual("supsub");
|
|
});
|
|
|
|
it("should not parse expanding accents", function() {
|
|
expect("\\widehat{x}").toNotParse();
|
|
});
|
|
});
|
|
|
|
describe("An accent builder", function() {
|
|
it("should not fail", function() {
|
|
expect("\\vec{x}").toBuild();
|
|
expect("\\vec{x}^2").toBuild();
|
|
expect("\\vec{x}_2").toBuild();
|
|
expect("\\vec{x}_2^2").toBuild();
|
|
});
|
|
|
|
it("should produce mords", function() {
|
|
expect(getBuilt("\\vec x")[0].classes).toContain("mord");
|
|
expect(getBuilt("\\vec +")[0].classes).toContain("mord");
|
|
expect(getBuilt("\\vec +")[0].classes).not.toContain("mbin");
|
|
expect(getBuilt("\\vec )^2")[0].classes).toContain("mord");
|
|
expect(getBuilt("\\vec )^2")[0].classes).not.toContain("mclose");
|
|
});
|
|
});
|
|
|
|
describe("A phantom parser", function() {
|
|
it("should not fail", function() {
|
|
expect("\\phantom{x}").toParse();
|
|
expect("\\phantom{x^2}").toParse();
|
|
expect("\\phantom{x}^2").toParse();
|
|
expect("\\phantom x").toParse();
|
|
});
|
|
|
|
it("should build a phantom node", function() {
|
|
var parse = getParsed("\\phantom{x}")[0];
|
|
|
|
expect(parse.type).toEqual("phantom");
|
|
expect(parse.value.value).toBeDefined();
|
|
});
|
|
});
|
|
|
|
describe("A phantom builder", function() {
|
|
it("should not fail", function() {
|
|
expect("\\phantom{x}").toBuild();
|
|
expect("\\phantom{x^2}").toBuild();
|
|
expect("\\phantom{x}^2").toBuild();
|
|
expect("\\phantom x").toBuild();
|
|
});
|
|
|
|
it("should make the children transparent", function() {
|
|
var children = getBuilt("\\phantom{x+1}")[0].children;
|
|
expect(children[0].style.color).toBe("transparent");
|
|
expect(children[1].style.color).toBe("transparent");
|
|
expect(children[2].style.color).toBe("transparent");
|
|
});
|
|
|
|
it("should make all descendants transparent", function() {
|
|
var children = getBuilt("\\phantom{x+\\blue{1}}")[0].children;
|
|
expect(children[0].style.color).toBe("transparent");
|
|
expect(children[1].style.color).toBe("transparent");
|
|
expect(children[2].children[0].style.color).toBe("transparent");
|
|
});
|
|
});
|
|
|
|
describe("A parser error", function() {
|
|
it("should report the position of an error", function() {
|
|
try {
|
|
parseTree("\\sqrt}", defaultSettings);
|
|
} catch (e) {
|
|
expect(e.position).toEqual(5);
|
|
}
|
|
});
|
|
});
|
|
|
|
describe("An optional argument parser", function() {
|
|
it("should not fail", function() {
|
|
// Note this doesn't actually make an optional argument, but still
|
|
// should work
|
|
expect("\\frac[1]{2}{3}").toParse();
|
|
|
|
expect("\\rule[0.2em]{1em}{1em}").toParse();
|
|
});
|
|
|
|
it("should work with sqrts with optional arguments", function() {
|
|
expect("\\sqrt[3]{2}").toParse();
|
|
});
|
|
|
|
it("should work when the optional argument is missing", function() {
|
|
expect("\\sqrt{2}").toParse();
|
|
expect("\\rule{1em}{2em}").toParse();
|
|
});
|
|
|
|
it("should fail when the optional argument is malformed", function() {
|
|
expect("\\rule[1]{2em}{3em}").toNotParse();
|
|
});
|
|
|
|
it("should not work if the optional argument isn't closed", function() {
|
|
expect("\\sqrt[").toNotParse();
|
|
});
|
|
});
|
|
|
|
describe("An array environment", function() {
|
|
|
|
it("should accept a single alignment character", function() {
|
|
var parse = getParsed("\\begin{array}r1\\\\20\\end{array}");
|
|
expect(parse[0].type).toBe("array");
|
|
expect(parse[0].value.cols).toEqual([
|
|
{ type: "align", align: "r" },
|
|
]);
|
|
});
|
|
|
|
it("should accept vertical separators", function() {
|
|
var parse = getParsed("\\begin{array}{|l||c|}\\end{array}");
|
|
expect(parse[0].type).toBe("array");
|
|
expect(parse[0].value.cols).toEqual([
|
|
{ type: "separator", separator: "|" },
|
|
{ type: "align", align: "l" },
|
|
{ type: "separator", separator: "|" },
|
|
{ type: "separator", separator: "|" },
|
|
{ type: "align", align: "c" },
|
|
{ type: "separator", separator: "|" },
|
|
]);
|
|
});
|
|
|
|
});
|
|
|
|
describe("A cases environment", function() {
|
|
|
|
it("should parse its input", function() {
|
|
expect("f(a,b)=\\begin{cases}a+1&\\text{if }b\\text{ is odd}\\\\" +
|
|
"a&\\text{if }b=0\\\\a-1&\\text{otherwise}\\end{cases}")
|
|
.toParse();
|
|
});
|
|
|
|
});
|
|
|
|
describe("An aligned environment", function() {
|
|
|
|
it("should parse its input", function() {
|
|
expect("\\begin{aligned}a&=b&c&=d\\\\e&=f\\end{aligned}")
|
|
.toParse();
|
|
});
|
|
|
|
});
|
|
|
|
var getMathML = function(expr, settings) {
|
|
var usedSettings = settings ? settings : defaultSettings;
|
|
|
|
expect(expr).toParse(usedSettings);
|
|
|
|
var built = buildMathML(parseTree(expr, usedSettings), expr, usedSettings);
|
|
|
|
// Strip off the surrounding <span>
|
|
return built.children[0];
|
|
};
|
|
|
|
describe("A MathML builder", function() {
|
|
it("should generate math nodes", function() {
|
|
var node = getMathML("x^2");
|
|
|
|
expect(node.type).toEqual("math");
|
|
});
|
|
|
|
it("should generate appropriate MathML types", function() {
|
|
var identifier = getMathML("x").children[0].children[0];
|
|
expect(identifier.children[0].type).toEqual("mi");
|
|
|
|
var number = getMathML("1").children[0].children[0];
|
|
expect(number.children[0].type).toEqual("mn");
|
|
|
|
var operator = getMathML("+").children[0].children[0];
|
|
expect(operator.children[0].type).toEqual("mo");
|
|
|
|
var space = getMathML("\\;").children[0].children[0];
|
|
expect(space.children[0].type).toEqual("mspace");
|
|
|
|
var text = getMathML("\\text{a}").children[0].children[0];
|
|
expect(text.children[0].type).toEqual("mtext");
|
|
|
|
var textop = getMathML("\\sin").children[0].children[0];
|
|
expect(textop.children[0].type).toEqual("mi");
|
|
});
|
|
|
|
it("should generate a <mphantom> node for \\phantom", function() {
|
|
var phantom = getMathML("\\phantom{x}").children[0].children[0];
|
|
expect(phantom.children[0].type).toEqual("mphantom");
|
|
});
|
|
});
|
|
|
|
describe("A parser that does not throw on unsupported commands", function() {
|
|
// The parser breaks on unsupported commands unless it is explicitly
|
|
// told not to
|
|
var errorColor = "#933";
|
|
var noThrowSettings = new Settings({
|
|
throwOnError: false,
|
|
errorColor: errorColor,
|
|
});
|
|
|
|
it("should still parse on unrecognized control sequences", function() {
|
|
expect("\\error").toParse(noThrowSettings);
|
|
});
|
|
|
|
describe("should allow unrecognized controls sequences anywhere, including", function() {
|
|
it("in superscripts and subscripts", function() {
|
|
expect("2_\\error").toBuild(noThrowSettings);
|
|
expect("3^{\\error}_\\error").toBuild(noThrowSettings);
|
|
expect("\\int\\nolimits^\\error_\\error").toBuild(noThrowSettings);
|
|
});
|
|
|
|
it("in fractions", function() {
|
|
expect("\\frac{345}{\\error}").toBuild(noThrowSettings);
|
|
expect("\\frac\\error{\\error}").toBuild(noThrowSettings);
|
|
});
|
|
|
|
it("in square roots", function() {
|
|
expect("\\sqrt\\error").toBuild(noThrowSettings);
|
|
expect("\\sqrt{234\\error}").toBuild(noThrowSettings);
|
|
});
|
|
|
|
it("in text boxes", function() {
|
|
expect("\\text{\\error}").toBuild(noThrowSettings);
|
|
});
|
|
});
|
|
|
|
it("should produce color nodes with a color value given by errorColor", function() {
|
|
var parsedInput = getParsed("\\error", noThrowSettings);
|
|
expect(parsedInput[0].type).toBe("color");
|
|
expect(parsedInput[0].value.color).toBe(errorColor);
|
|
});
|
|
});
|
|
|
|
describe("The symbol table integraty", function() {
|
|
it("should treat certain symbols as synonyms", function() {
|
|
expect(getBuilt("<")).toEqual(getBuilt("\\lt"));
|
|
expect(getBuilt(">")).toEqual(getBuilt("\\gt"));
|
|
expect(getBuilt("\\left<\\frac{1}{x}\\right>"))
|
|
.toEqual(getBuilt("\\left\\lt\\frac{1}{x}\\right\\gt"));
|
|
});
|
|
});
|