fixed bug where _geonames_warnings was throwing exception on undefined clean.parsed_text

refactored a bit for clarity

sanitizer/_geonames_warnings.js

@@ -1,26 +1,30 @@
 const _ = require('lodash');
 
-function isAdminOnly(parsed_text) {
-  return ['number', 'street', 'query', 'category'].every((prop) => {
-    return _.isEmpty(parsed_text[prop]);
-  });
+const non_admin_fields = ['number', 'street', 'query', 'category'];
+
+function hasAnyNonAdminFields(parsed_text) {
+  return !_.isEmpty(
+            _.intersection(
+              _.keys(parsed_text),
+              non_admin_fields));
 }
 
 function sanitize( raw, clean ){
   // error & warning messages
   const messages = { errors: [], warnings: [] };
 
-  // bail early if analysis wasn't admin-only
-  if (!isAdminOnly(clean.parsed_text)) {
+  // bail early if analysis isn't admin-only
+  if (_.isUndefined(clean.parsed_text) || hasAnyNonAdminFields(clean.parsed_text)) {
     return messages;
   }
 
+  // the analysis is admin-only, so add errors or warnings if geonames was requested
   if (_.isEqual(clean.sources, ['geonames'])) {
     // if requested sources is only geonames, return an error
     messages.errors.push('input contains only administrative area data, ' +
       'no results will be returned when sources=geonames');
 
-  } else if (_.indexOf(clean.sources, 'geonames') !== -1) {
+  } else if (_.includes(clean.sources, 'geonames')) {
     // if there are other sources besides geonames, return an warning
     messages.warnings.push('input contains only administrative area data, ' +
       'geonames results will not be returned');

test/unit/sanitizer/_geonames_warnings.js

@@ -8,6 +8,18 @@ const adminProperties = ['neighbourhood', 'borough', 'city', 'county', 'state',
 module.exports.tests = {};
 
 module.exports.tests.no_errors = (test, common) => {
+  test('undefined clean.parsed_text should exit early', (t) => {
+    const clean = {
+      sources: ['geonames'],
+    };
+
+    const messages = geonames_warnings(undefined, clean);
+
+    t.deepEquals(messages, { errors: [], warnings: [] });
+    t.end();
+
+  });
+
   test('any non-admin analysis field with only geonames sources should exit early', (t) => {
     adminProperties.forEach((adminProperty) => {
       nonAdminProperties.forEach((nonAdminProperty) => {