feat(test): add multi-engine integration matrix

tests/Unit/BootstrapTest.php

@@ -2,6 +2,7 @@
 
 namespace Tests\Unit;
 
+use PHPUnit\Framework\Attributes\Test;
 use Libs\Neuron;
 use PDO;
 use Tests\TestCase;
@@ -15,7 +16,8 @@ use Tests\TestCase;
  */
 final class BootstrapTest extends TestCase
 {
-    public function testFrameworkClassesAreAutoloaded(): void
+    #[Test]
+    public function frameworkClassesAreAutoloaded(): void
     {
         $this->assertTrue(
             class_exists(Neuron::class),
@@ -27,7 +29,9 @@ final class BootstrapTest extends TestCase
         $this->assertNull($neuron->doesNotExist);
     }
 
-    public function testDatabaseConstantsPointToInMemorySqlite(): void
+    #[Test]
+
+    public function databaseConstantsPointToInMemorySqlite(): void
     {
         $this->assertSame(
             'sqlite',
@@ -37,7 +41,9 @@ final class BootstrapTest extends TestCase
         $this->assertSame(':memory:', DB_NAME, 'DB_NAME should be :memory: so tests never touch disks or servers');
     }
 
-    public function testTestDatabaseIsUsable(): void
+    #[Test]
+
+    public function testDatabaseIsUsable(): void
     {
         $db = self::db();
         $this->assertInstanceOf(PDO::class, $db, 'Could not obtain the test PDO connection');