Merge pull request #1 from UziTech/pr/1460

create dynamic redos specs

Author: andersk

test/redos/quadratic_br.html

@@ -0,0 +1,4 @@
+module.exports = {
+  markdown: `a${' '.repeat(50000)}`,
+  html: `<p>a${' '.repeat(50000)}</p>`
+};

test/redos/quadratic_br.js

@@ -0,0 +1,4 @@
+module.exports = {
+  markdown: 'a'.repeat(50000),
+  html: `<p>${'a'.repeat(50000)}</p>`
+};

test/redos/quadratic_br.md

@@ -0,0 +1,22 @@
+const path = require('path');
+const fs = require('fs');
+
+describe('ReDOS tests', () => {
+  const files = fs.readdirSync(path.resolve(__dirname, '../redos/'));
+  files.forEach(file => {
+    if (!file.match(/\.js$/)) {
+      return;
+    }
+
+    it(file, () => {
+      const spec = require(path.resolve(__dirname, '../redos', file));
+      const before = process.hrtime();
+      expect(spec).toRender(spec.html);
+      const elapsed = process.hrtime(before);
+      if (elapsed[0] > 0) {
+        const s = (elapsed[0] + elapsed[1] * 1e-9).toFixed(3);
+        fail(`took too long: ${s}s`);
+      }
+    });
+  });
+});