refactor: move backend to monorepo

backend/test/common.spec.ts

@@ -0,0 +1,33 @@
+/*
+ * Copyright (C) 2020 StApps
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+import {yearSlice} from '../config/default';
+import {expect} from 'chai';
+
+describe('Common', function () {
+  describe('yearSlice', function () {
+    it('should provide correct ascending month number ranges', function () {
+      expect(yearSlice(1, 12)).to.eql([1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12]);
+    });
+
+    it('should provide correct month number ranges for year rollovers', function () {
+      expect(yearSlice(12, 1)).to.eql([12, 1]);
+    });
+
+    it('should provide correct month number ranges for a whole year', function () {
+      expect(yearSlice(12, 12)).to.eql([12, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12]);
+    });
+  });
+});