Update namespaces

tests/MySQLInsertTest.php

@@ -0,0 +1,16 @@
+<?php
+use PHPUnit\Framework\TestCase;
+
+class MySQLInsertTest extends TestCase
+{
+    public function testBaseQuery(): void
+    {
+        $query = new Database\Implement\Query\MySQL\Insert();
+        $query->into('test_table');
+        $query->values('?, ?, ?');
+
+        $expected = "INSERT INTO `test_table` VALUES (?, ?, ?)";
+
+        $this->assertEquals($expected, "{$query}");
+    }
+}