test: ensure cleanup of sqlite3 db files after test

Author: paulbalandan

tests/system/Database/Live/SQLite/GetIndexDataTest.php

@@ -41,18 +41,32 @@ final class GetIndexDataTest extends CIUnitTestCase
 
     private Forge $forge;
 
+    /**
+     * @var array{DBDriver: string, database: string, DBDebug: bool}
+     */
+    private array $config = [];
+
     protected function setUp(): void
     {
         parent::setUp();
 
-        $config = [
+        $this->config = [
             'DBDriver' => 'SQLite3',
-            'database' => 'database.db',
+            'database' => WRITEPATH . 'database.db',
             'DBDebug'  => true,
         ];
 
-        $this->db    = db_connect($config);
-        $this->forge = Database::forge($config);
+        $this->db    = db_connect($this->config);
+        $this->forge = Database::forge($this->config);
+    }
+
+    protected function tearDown(): void
+    {
+        parent::tearDown();
+
+        if (is_file($this->config['database'])) {
+            unlink($this->config['database']);
+        }
     }
 
     public function testGetIndexData(): void

tests/system/Database/Migrations/MigrationRunnerTest.php

@@ -470,6 +470,10 @@ public function testMigrationUsesSameConnectionAsMigrationRunner(): void
         $this->assertCount(2, $tables);
         $this->assertSame('migrations', $tables[0]);
         $this->assertSame('foo', $tables[1]);
+
+        if (is_file($config['database'])) {
+            unlink($config['database']);
+        }
     }
 
     protected function resetTables($db = null): void