testing with jest

tsconfig.json

@@ -1,4 +1,8 @@
 {
+  "include": [
+    "./src/**/*.ts",
+    "./tests/**/*.ts"
+  ],
   "compilerOptions": {
     "target": "esnext",
     "module": "ESNext",
@@ -8,11 +12,15 @@
     "strict": true,
     "skipLibCheck": true,
     "allowImportingTsExtensions": true,
-    "verbatimModuleSyntax": true,
     "paths": {
       "@/*": [
         "./src/*"
       ]
     }
-  }
+  },
+  "exclude": [
+    "node_modules",
+    "./*.ts",
+    "__test__"
+  ]
 }