Fix unit tests by mocking the date

package-lock.json

@@ -2377,6 +2377,11 @@
       "integrity": "sha1-mDaL6wnfdT9k9m2U5VNql7NqJDA=",
       "dev": true
     },
+    "mockdate": {
+      "version": "2.0.2",
+      "resolved": "https://registry.npmjs.org/mockdate/-/mockdate-2.0.2.tgz",
+      "integrity": "sha1-WuDA6vj+I+AJzQH5iJtCxPY0rxI="
+    },
     "moment": {
       "version": "2.24.0",
       "resolved": "https://registry.npmjs.org/moment/-/moment-2.24.0.tgz",

package.json

@@ -16,6 +16,7 @@
     "dotenv": "^8.0.0",
     "express": "^4.16.4",
     "geo-tz": "^5.0.4",
+    "mockdate": "^2.0.2",
     "moment-timezone": "^0.5.25",
     "suncalc": "^1.8.0"
   },

routes/weather.spec.ts

@@ -2,6 +2,7 @@ import { expect } from 'chai';
 import * as nock from 'nock';
 import * as MockExpressRequest from 'mock-express-request';
 import * as MockExpressResponse from 'mock-express-response';
+import * as MockDate from 'mockdate';
 
 import { getWateringData } from './weather';
 
@@ -11,6 +12,8 @@ const replies = require( '../test/replies.json' );
 const location = '01002';
 
 describe('Watering Data', () => {
+    beforeEach(() => MockDate.set('5/13/2019'));
+
     it('OpenWeatherMap Lookup (Adjustment Method 0, Location 01002)', async () => {
         mockOWM();