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backend/node_modules/safe-regex2/test/regex.js

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+const safe = require('../')
+const test = require('tape')
+
+const good = [
+  /\bOakland\b/,
+  /\b(Oakland|San Francisco)\b/i,
+  /^\d+1337\d+$/i,
+  /^\d+(1337|404)\d+$/i,
+  /^\d+(1337|404)*\d+$/i,
+  RegExp(Array(26).join('a?') + Array(26).join('a'))
+]
+
+test('safe regex', function (t) {
+  t.plan(good.length)
+  good.forEach(function (re) {
+    t.equal(safe(re), true)
+  })
+})
+
+const bad = [
+  /^(a?){25}(a){25}$/,
+  RegExp(Array(27).join('a?') + Array(27).join('a')),
+  /(x+x+)+y/,
+  /foo|(x+x+)+y/,
+  /(a+){10}y/,
+  /(a+){2}y/,
+  /(.*){1,32000}[bc]/
+]
+
+test('unsafe regex', function (t) {
+  t.plan(bad.length)
+  bad.forEach(function (re) {
+    t.equal(safe(re), false)
+  })
+})
+
+const invalid = [
+  '*Oakland*',
+  'hey(yoo))',
+  'abcde(?>hellow)',
+  '[abc'
+]
+
+test('invalid regex', function (t) {
+  t.plan(invalid.length)
+  invalid.forEach(function (re) {
+    t.equal(safe(re), false)
+  })
+})