Add feature to fill null table entries with as-the-crow-flies estimates.

features/step_definitions/distance_matrix.js

@@ -3,22 +3,25 @@ var util = require('util');
 module.exports = function () {
     const durationsRegex = new RegExp(/^I request a travel time matrix I should get$/);
     const distancesRegex = new RegExp(/^I request a travel distance matrix I should get$/);
+    const estimatesRegex = new RegExp(/^I request a travel time matrix I should get estimates for$/);
 
     const DURATIONS_NO_ROUTE = 2147483647;     // MAX_INT
     const DISTANCES_NO_ROUTE = 3.40282e+38;    // MAX_FLOAT
 
     this.When(durationsRegex, function(table, callback) {tableParse.call(this, table, DURATIONS_NO_ROUTE, 'durations', callback);}.bind(this));
     this.When(distancesRegex, function(table, callback) {tableParse.call(this, table, DISTANCES_NO_ROUTE, 'distances', callback);}.bind(this));
+    this.When(estimatesRegex, function(table, callback) {tableParse.call(this, table, DISTANCES_NO_ROUTE, 'estimated_cells', callback);}.bind(this));
 };
 
 const durationsParse = function(v) { return isNaN(parseInt(v)); };
 const distancesParse = function(v) { return isNaN(parseFloat(v)); };
+const estimatesParse = function(v) { return isNaN(parseFloat(v)); };
 
 function tableParse(table, noRoute, annotation, callback) {
 
-    const parse = annotation == 'distances' ? distancesParse : durationsParse;
+    const parse = annotation == 'distances' ? distancesParse : (annotation == 'durations' ? durationsParse : estimatesParse);
     const params = this.queryParams;
-    params.annotations = annotation == 'distances' ? 'distance' : 'duration';
+    params.annotations = ['durations','estimated_cells'].includes(annotation) ? 'duration' : 'distance';
 
     var tableRows = table.raw();
 
@@ -61,11 +64,26 @@ function tableParse(table, noRoute, annotation, callback) {
 
             var json = JSON.parse(response.body);
 
-            var result = json[annotation].map(row => {
-                var hashes = {};
-                row.forEach((v, i) => { hashes[tableRows[0][i+1]] = parse(v) ? '' : v; });
-                return hashes;
-            });
+            var result = {};
+            if (annotation === 'estimated_cells') {
+                result = table.raw().map(row => row.map(cell => ''));
+                json[annotation].forEach(pair => {
+                    result[pair[0]+1][pair[1]+1] = 'Y';
+                });
+                result = result.slice(1).map(row => {
+                    var hashes = {};
+                    row.slice(1).forEach((v,i) => {
+                        hashes[tableRows[0][i+1]] = v;
+                    });
+                    return hashes;
+                });
+            } else {
+                result = json[annotation].map(row => {
+                    var hashes = {};
+                     row.forEach((v, i) => { hashes[tableRows[0][i+1]] = parse(v) ? '' : v; });
+                    return hashes;
+                });
+            }
 
             var testRow = (row, ri, cb) => {
                 for (var k in result[ri]) {