wip

packages/gatsby-remark-graphviz/__tests__/index.js

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+"use strict";
+
+var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault");
+
+var _asyncToGenerator2 = _interopRequireDefault(require("@babel/runtime/helpers/asyncToGenerator"));
+
+const Remark = require(`remark`);
+
+const toHAST = require(`mdast-util-to-hast`);
+
+const hastToHTML = require(`hast-util-to-html`);
+
+const cheerio = require(`cheerio`);
+
+const plugin = require(`../`);
+
+const remark = new Remark().data(`settings`, {
+  commonmark: true,
+  footnotes: true,
+  pedantic: true
+});
+
+const run =
+/*#__PURE__*/
+function () {
+  var _ref = (0, _asyncToGenerator2.default)(function* (content) {
+    const markdownAST = remark.parse(content);
+    yield plugin({
+      markdownAST
+    });
+    const htmlAst = toHAST(markdownAST, {
+      allowDangerousHTML: true
+    });
+    const html = hastToHTML(htmlAst, {
+      allowDangerousHTML: true
+    });
+    return html;
+  });
+
+  return function run(_x) {
+    return _ref.apply(this, arguments);
+  };
+}();
+
+describe(`handles valid graph languages`, () => {
+  it(`dot`,
+  /*#__PURE__*/
+  (0, _asyncToGenerator2.default)(function* () {
+    const test = yield run(`
+\`\`\`dot
+  digraph graphname {
+    a -> b;
+    b -> c;
+    a -> c;
+  }
+\`\`\``);
+    const $ = cheerio.load(test);
+    expect($(`svg`).length).toBe(1);
+    expect($(`pre`).length).toBe(0);
+    expect($(`code`).length).toBe(0);
+  }));
+  it(`circo`,
+  /*#__PURE__*/
+  (0, _asyncToGenerator2.default)(function* () {
+    const test = yield run(`
+\`\`\`circo
+  digraph graphname {
+    a -> b;
+    b -> c;
+    a -> c;
+  }
+\`\`\``);
+    const $ = cheerio.load(test);
+    expect($(`svg`).length).toBe(1);
+    expect($(`pre`).length).toBe(0);
+    expect($(`code`).length).toBe(0);
+  }));
+  it(`unknown graph lang`,
+  /*#__PURE__*/
+  (0, _asyncToGenerator2.default)(function* () {
+    const test = yield run(`
+\`\`\`pieh-format
+  digraph graphname {
+    a :heart: b;
+  }
+\`\`\``);
+    const $ = cheerio.load(test);
+    expect($(`svg`).length).toBe(0);
+    expect($(`pre`).length).toBe(1);
+    expect($(`code`).length).toBe(1);
+  }));
+});