Ptotential fix for stats failing

ref #190

src/models/entities/RunnerGroup.ts

@@ -51,6 +51,9 @@ export abstract class RunnerGroup {
   */
   @IsInt()
   public get distance(): number {
+    if (!this.runners || this.runners.length == 0) {
+      return 0;
+    }
     return this.runners.reduce((sum, current) => sum + current.distance, 0);
   }
 

src/tests/stats/stats_get.spec.ts

@@ -72,8 +72,6 @@ describe('GET /api/stats/teams/* should return 200', () => {
     });
     it('get by donations w/ auth should return 200', async () => {
         const res = await axios.get(base + '/api/stats/teams/donations', axios_config_stats);
-        console.log("################# Teams by donations #################");
-        console.log(res.data);
         expect(res.status).toEqual(200);
         expect(res.headers['content-type']).toContain("application/json");
     });