feat: basic testing done

front/tsconfig.spec.json

@@ -0,0 +1,9 @@
+{
+    "extends": "./tsconfig.json",
+    "compilerOptions": {
+        "outDir": "./out-tsc/spec",
+        "types": ["jest", "node"],
+        "baseUrl": "./src"
+    },
+    "include": ["src/**/*.spec.ts", "src/**/*.d.ts"]
+}