diff --git a/ava.config.js b/ava.config.js
index 97c0b8b..9624f9b 100644
--- a/ava.config.js
+++ b/ava.config.js
@@ -5,4 +5,14 @@ export default {
 	timeout: '1m',
 	faileFast: true,
 	extensions: ['ts', 'js'],
+	nodeArguments: [
+		"--loader=ts-node/esm",
+		"--experimental-specifier-resolution=node"
+	],
+	extensions: {
+		"ts": "module"
+	},
+	nonSemVerExperiments: {
+		"configurableModuleFormat": true
+	  },
 }
\ No newline at end of file
diff --git a/package.json b/package.json
index 848f3df..fd3a1fc 100644
--- a/package.json
+++ b/package.json
@@ -17,7 +17,7 @@
 		"test": "npm run test:unit && npm run test:e2e",
 		"start": "cross-env NODE_ENV=production node --loader ts-node/esm ./src/index.ts",
 		"dev": "env-cmd -f .env.development nodemon --watch \"src/**/*.ts\" --exec \"node --loader ts-node/esm --unhandled-rejections=strict --trace-warnings\" src/index.ts",
-		"test:unit": "ava",
+		"test:unit": "TS_NODE_PROJECT='./tsconfig-spec.json' ava",
 		"test:e2e": "exit 0"
 	},
 	"keywords": [
diff --git a/src/config/__test__/validate.test.js b/src/config/__test__/validate.test.js
deleted file mode 100644
index e3d92dd..0000000
--- a/src/config/__test__/validate.test.js
+++ /dev/null
@@ -1,7 +0,0 @@
-import test from 'ava';
-
-const fn = () => 'foo';
-
-test('mock test for first running', t => {
-	t.is(fn(), 'foo');
-});
\ No newline at end of file
diff --git a/src/config/__test__/validate.test.ts b/src/config/__test__/validate.test.ts
new file mode 100644
index 0000000..37a4a05
--- /dev/null
+++ b/src/config/__test__/validate.test.ts
@@ -0,0 +1,29 @@
+import { validateConfig } from '../validate.js'
+import test from 'ava'
+import { RawConfig } from '../types.js'
+
+const config: RawConfig = {
+	port: 'mock-port',
+	appName: 'mini-test',
+	baseRedirectUrl: 'http://mock.com',
+	url: {
+		matchPattern: 'mock-patter',
+		lifetime: '120',
+	},
+	storage: {
+		driverName: 'InMemory',
+		relationalDriverConfig: {
+			client: 'mock-client',
+			connection: {
+				host: 'local-host',
+				user: 'snir-hamair',
+				password: 'admin1234',
+				database: 'mock-db',
+			},
+		},
+	},
+}
+
+test('validate config - happy flow [configuration set propely]', (t) => {
+	t.is(validateConfig(config), true)
+})
diff --git a/tsconfig-spec.json b/tsconfig-spec.json
new file mode 100644
index 0000000..3e4cc67
--- /dev/null
+++ b/tsconfig-spec.json
@@ -0,0 +1,6 @@
+{
+    "extends": "./tsconfig.json",
+    "compilerOptions": {
+      "module": "ESNext",
+    }
+  }
diff --git a/tsconfig.json b/tsconfig.json
index 40ba65b..4266e06 100644
--- a/tsconfig.json
+++ b/tsconfig.json
@@ -15,6 +15,6 @@
 		"experimentalDecorators": true,
 		"pretty": true,
 		"noFallthroughCasesInSwitch": true,
-		"noImplicitReturns": true
+		"noImplicitReturns": true,
 	},
 }