130: more core tests

src/app/core/cache/object-cache.effects.ts

@@ -0,0 +1,24 @@
+import { Injectable } from '@angular/core';
+import { Actions, Effect } from '@ngrx/effects';
+
+import { StoreActionTypes } from '../../store.actions';
+import { ResetObjectCacheTimestampsAction } from './object-cache.actions';
+
+@Injectable()
+export class ObjectCacheEffects {
+
+  /**
+   * When the store is rehydrated in the browser, set all cache
+   * timestamps to 'now', because the time zone of the server can
+   * differ from the client.
+   *
+   * This assumes that the server cached everything a negligible
+   * time ago, and will likely need to be revisited later
+   */
+  @Effect() fixTimestampsOnRehydrate = this.actions$
+    .ofType(StoreActionTypes.REHYDRATE)
+    .map(() => new ResetObjectCacheTimestampsAction(new Date().getTime()));
+
+  constructor(private actions$: Actions) { }
+
+}