Pre-process origin matchers for better performance (regexes created once only)

test/origin.spec.js

@@ -1,46 +1,55 @@
 /* eslint-env mocha */
 require('should')
-var origin = require('../src/origin')
+var originMatcher = require('../src/origin-matcher')
 
 describe('Origin list', function () {
   it('returns false if the request has no origin', function () {
     var list = ['http://api.myapp.com', 'http://www.myapp.com']
-    origin.allowed(list, null).should.eql(false)
+    var matcher = originMatcher.create(list)
+    matcher(null).should.eql(false)
+    matcher('').should.eql(false)
   })
 
   it('returns false if the origin is not in the list', function () {
     var list = ['http://api.myapp.com', 'http://www.myapp.com']
-    origin.allowed(list, 'http://random-website.com').should.eql(false)
+    var matcher = originMatcher.create(list)
+    matcher('http://random-website.com').should.eql(false)
   })
 
   it('returns true if the origin matched', function () {
     var list = ['http://api.myapp.com', 'http://www.myapp.com']
-    origin.allowed(list, 'http://api.myapp.com').should.eql(true)
+    var matcher = originMatcher.create(list)
+    matcher('http://api.myapp.com').should.eql(true)
   })
 
   it('does not do partial matches by default', function () {
     var list = ['http://api.myapp.com', 'http://www.myapp.com']
-    origin.allowed(list, 'api.myapp.com').should.eql(false)
+    var matcher = originMatcher.create(list)
+    matcher('api.myapp.com').should.eql(false)
   })
 
   it('always matches if the list contains *', function () {
     var list = ['*']
-    origin.allowed(list, 'http://random-website.com').should.eql(true)
+    var matcher = originMatcher.create(list)
+    matcher('http://random-website.com').should.eql(true)
   })
 
   it('supports * for partial matches', function () {
     var list = ['http://*.myapp.com', 'http://other-website.com']
-    origin.allowed(list, 'http://api.myapp.com').should.eql(true)
+    var matcher = originMatcher.create(list)
+    matcher('http://api.myapp.com').should.eql(true)
   })
 
   it('escapes the partial regex properly', function () {
     // the "." should be a real dot, not mean "[any character]myapp"
     var list = ['http://*.myapp.com', 'http://other-website.com']
-    origin.allowed(list, 'http://xmyapp.com').should.eql(false)
+    var matcher = originMatcher.create(list)
+    matcher('http://xmyapp.com').should.eql(false)
   })
 
   it('returns false if there was no partial match', function () {
     var list = ['http://*.myapp.com']
-    origin.allowed(list, 'http://random-website.com').should.eql(false)
+    var matcher = originMatcher.create(list)
+    matcher('http://random-website.com').should.eql(false)
   })
 })