Create database connection using configuration then do a test

App/Config.php

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+<?php
+namespace App;
+
+class Config
+{
+    const
+        DB_HOST = '127.0.0.1',
+        DB_DB = 'cfp_test',
+        DB_UNAME = 'root',
+        DB_PWD = 'root';
+}

Core/Model.php

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+<?php
+namespace Core;
+
+use App\Config;
+
+class Model
+{
+    protected static $dsn;
+
+    protected static function connectDB()
+    {
+        static $conn = null;
+
+        if (!$conn) {
+            try {
+                $dsn = 'mysql:host='.Config::DB_HOST.';dbname='.Config::DB_DB;
+                $conn = new \PDO($dsn, Config::DB_UNAME, Config::DB_PWD);
+
+                $conn->setAttribute(\PDO::ATTR_ERRMODE, \PDO::ERRMODE_EXCEPTION);
+            } catch (PDOException $e) {
+                echo $e->getMessage();
+            }
+        }
+
+        return $conn;
+    }
+
+    public function createTable()
+    {
+        $sql = "CREATE TABLE IF NOT EXISTS pengumuman (
+        	id			int(3)			NOT NULL	AUTO_INCREMENT,
+        	category	int(3)        	NOT NULL,
+        	created_at	timestamp		NOT NULL	DEFAULT	CURRENT_TIMESTAMP,
+            expire_at   timestamp       NOT NULL,
+            creator     int(3)          NOT NULL,
+            edited_at   timestamp,
+            editor      int(3),
+            content     varchar(255)    NOT NULL,
+
+        	PRIMARY KEY (id)
+        ) ENGINE=InnoDB	DEFAULT CHARSET=utf8;";
+
+        $db = static::connectDB();
+        $query = $db->prepare($sql);
+
+        if ($query->execute()) {
+            return true;
+        }
+        return false;
+    }
+
+    public function dropTable()
+    {
+        $sql = "DROP TABLE IF EXISTS pengumuman";
+
+        $db = static::connectDB();
+        $query = $db->prepare($sql);
+
+        if ($query->execute()) {
+            return true;
+        }
+        return false;
+    }
+}

_tests/unit/ModelTest.php

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+<?php
+namespace Core;
+
+// use Model;
+
+class ModelTest extends \PHPUnit\Framework\TestCase
+{
+    /**
+     *
+     * @test
+     */
+    public function createNewTableWorkSuccess()
+    {
+        $model = new Model();
+        $this->assertTrue($model->createTable());
+        $this->assertTrue($model->dropTable());
+    }
+}