Fix summary generation when empty strings are present.

Also corrects step ordering when steps have equal durations.

features/support/route.js

@@ -127,6 +127,12 @@ module.exports = function () {
         }
     };
 
+    this.summary = (instructions) => {
+        if (instructions) {
+            return instructions.legs.map(l => l.summary).join(',');
+        }
+    }
+
     this.wayList = (instructions) => {
         return this.extractInstructionList(instructions, s => s.name);
     };

features/support/shared_steps.js

@@ -31,7 +31,7 @@ module.exports = function () {
                 var afterRequest = (err, res, body) => {
                     if (err) return cb(err);
                     if (body && body.length) {
-                        var instructions, bearings, turns, modes, times, distances;
+                        var instructions, bearings, turns, modes, times, distances, summary;
 
                         var json = JSON.parse(body);
 
@@ -44,6 +44,7 @@ module.exports = function () {
                             modes = this.modeList(json.routes[0]);
                             times = this.timeList(json.routes[0]);
                             distances = this.distanceList(json.routes[0]);
+                            summary = this.summary(json.routes[0]);
                         }
 
                         if (headers.has('status')) {
@@ -66,6 +67,10 @@ module.exports = function () {
                         if (headers.has('route')) {
                             got.route = (instructions || '').trim();
 
+                            if (headers.has('summary')) {
+                                got.summary = (summary || '').trim();
+                            }
+
                             if (headers.has('alternative')) {
                                 // TODO examine more than first alternative?
                                 got.alternative ='';