Unit test for RBValidator

tests/unit/HttpStatusCodeTest.php

@@ -5,7 +5,7 @@
 use PHPUnit\Framework\TestCase;
 use RB\Core\HttpStatusCode;
 
-class HttpStatusCodesTest extends TestCase
+class HttpStatusCodeTest extends TestCase
 {
 	public function testGetCodeWithMessage()
 	{

tests/unit/RBValidatorTest.php

@@ -0,0 +1,38 @@
+<?php
+
+namespace Tests\Unit;
+
+use Orchestra\Testbench\TestCase;
+use RB\Core\RBValidator;
+
+class RBValidatorTest extends TestCase
+{
+    protected function setUp()
+    {
+        parent::setUp();
+    }
+
+    public function getEnvironmentSetUp($app)
+    {
+        parent::getEnvironmentSetUp($app);
+
+        $app['config']->set('response_builder.messages.failed_validation', 'Validation failed.');
+    }
+
+    public function testValidate()
+    {
+        $data = [
+            'name' => 'John',
+            'age'  => 26,
+            'city' => 'New York'
+        ];
+
+        $rules = [
+            'name' => 'string',
+            'age' => 'integer',
+            'city' => 'required'
+        ];
+
+        $this->assertTrue(  RBValidator::validate( $data, $rules ) );
+    }
+}