fix path finding in express

src/frameworks/express.js

@@ -10,6 +10,11 @@ function getValidator(validateRequest) {
 
 function _getParameters(req) {
     const requestOptions = {};
+    if (!req.route || !req.route.path) {
+        req.route = {
+            path: req.path
+        };
+    }
     const path = req.baseUrl.concat(req.route.path);
     requestOptions.path = path.endsWith('/') ? path.substring(0, path.length - 1) : path;
     requestOptions.headers = req.headers;

test/express/middleware-test.js

@@ -414,6 +414,20 @@ describe('input-validation middleware tests - Express', function () {
                     done();
                 });
         });
+        it('valid request - use with router module', function (done) {
+            request(app)
+                .get('/petsRouter/pets/1234')
+                .set('api-version', '1.0')
+                .set('request-id', '123456')
+                .query({ page: 0 })
+                .expect(200, function (err, res) {
+                    if (err) {
+                        throw err;
+                    }
+                    expect(res.body.result).to.equal('OK');
+                    done();
+                });
+        });
     });
     describe('Simple server - type coercion enabled', function () {
         let app;

test/express/test-simple-server.js

@@ -3,6 +3,7 @@
 const express = require('express');
 const bodyParser = require('body-parser');
 const inputValidation = require('../../src/middleware');
+const router = require('../router');
 
 module.exports = () => {
     inputValidation.init('test/pet-store-swagger.yaml');
@@ -24,6 +25,7 @@ module.exports = () => {
     app.put('/pets', inputValidation.validate, function (req, res, next) {
         res.json({ result: 'OK' });
     });
+    app.use('/petsRouter', inputValidation.validate, router);
     app.use(function (err, req, res, next) {
         if (err instanceof inputValidation.InputValidationError) {
             res.status(400).json({ more_info: JSON.stringify(err.errors) });