recreate project

tests/app/Controllers/Api/TestDBControllerTest.php

@@ -0,0 +1,54 @@
+<?php
+
+namespace Tests\App\Controllers\Api;
+
+use App\Controllers\Api\TestDBController;
+use CodeIgniter\HTTP\ResponseInterface;
+use CodeIgniter\Test\CIUnitTestCase;
+
+class StubQuery
+{
+    public function getRow()
+    {
+        return (object)['result' => 1];
+    }
+}
+
+class StubDatabase
+{
+    public function query(string $sql)
+    {
+        return new StubQuery();
+    }
+}
+
+class TestableTestDBController extends TestDBController
+{
+    protected function success($data = null, string $message = 'Success', int $code = ResponseInterface::HTTP_OK)
+    {
+        return ['data' => $data, 'message' => $message, 'code' => $code];
+    }
+
+    protected function error(string $message = 'An error occurred', int $code = ResponseInterface::HTTP_BAD_REQUEST, ?array $errors = null)
+    {
+        return ['message' => $message, 'code' => $code, 'errors' => $errors];
+    }
+
+    protected function getDatabaseConnection()
+    {
+        return new StubDatabase();
+    }
+}
+
+class TestDBControllerTest extends CIUnitTestCase
+{
+    public function testIndexReturnsSuccessWhenDatabaseOk()
+    {
+        $controller = new TestableTestDBController();
+        $response = $controller->index();
+
+        $this->assertSame(ResponseInterface::HTTP_OK, $response['code']);
+        $this->assertSame('Database check completed', $response['message']);
+        $this->assertSame('Database connection is successful.', $response['data']['message']);
+    }
+}