Add Jest and target ES6 in TypeScript

package.json

@@ -11,11 +11,17 @@
     "export:builds": "/bin/sh ./docker/scripts/export_builds.sh"
   },
   "devDependencies": {
+    "@types/jest": "^26.0.23",
     "@types/node": "^15.12.2",
+    "@zerollup/ts-transform-paths": "^1.7.18",
+    "jest": "^26.5.3",
     "lerna": "^4.0.0",
     "nodemon": "^2.0.7",
     "rimraf": "^3.0.2",
+    "ts-jest": "^26.5.3",
     "ts-node": "^10.0.0",
+    "tsconfig-paths": "^3.9.0",
+    "ttypescript": "^1.5.12",
     "typescript": "^4.3.2"
   }
 }

tsconfig.json

@@ -4,7 +4,7 @@
 
     /* Basic Options */
     // "incremental": true,                         /* Enable incremental compilation */
-    "target": "es5",                                /* Specify ECMAScript target version: 'ES3' (default), 'ES5', 'ES2015', 'ES2016', 'ES2017', 'ES2018', 'ES2019', 'ES2020', or 'ESNEXT'. */
+    "target": "es6",                                /* Specify ECMAScript target version: 'ES3' (default), 'ES5', 'ES2015', 'ES2016', 'ES2017', 'ES2018', 'ES2019', 'ES2020', or 'ESNEXT'. */
     "module": "commonjs",                           /* Specify module code generation: 'none', 'commonjs', 'amd', 'system', 'umd', 'es2015', 'es2020', or 'ESNext'. */
     // "lib": [],                                   /* Specify library files to be included in the compilation. */
     // "allowJs": true,                             /* Allow javascript files to be compiled. */
@@ -67,6 +67,17 @@
 
     /* Advanced Options */
     "skipLibCheck": true,                           /* Skip type checking of declaration files. */
-    "forceConsistentCasingInFileNames": true        /* Disallow inconsistently-cased references to the same file. */
-  }
+    "forceConsistentCasingInFileNames": true,       /* Disallow inconsistently-cased references to the same file. */
+
+    /* Plugins */
+    "plugins": [
+      { "transform": "@zerollup/ts-transform-paths" }
+    ]
+  },
+  "exclude": [
+    "/**/node_modules",
+    "/**/dist/**/*.ts",
+    "/**/jest.config.ts",
+    "/**/test/**/*.ts"
+  ]
 }