Merge 402a9f931ed5c106fa8f67338827b54b71b0ecd6 into 3eb61e353f2fa7ddff519d254b991223df250844

src/TestSessionEnvironment.php

@@ -625,14 +625,9 @@ class TestSessionEnvironment
 
     private function connectToDB(array $databaseConfig): void
     {
-        if (method_exists(DB::class, 'hasConfig')) {
+        // Ensure we connect the primary connection and not a replica
-            // CMS 5.4+ - ensure we connect the primary connection and not a replica
+        // which can happen if we use the default value of DB::CONN_DYNAMIC
-            // which can happen if we use the default value of DB::CONN_DYNAMIC
+        // and there is a replica database configured
-            // and there is a replica database configured
+        DB::connect($databaseConfig, DB::CONN_PRIMARY);
-            DB::connect($databaseConfig, DB::CONN_PRIMARY);
-        } else {
-            // CMS 5.3 and below do not support replica connections, use 'default' connection
-            DB::connect($databaseConfig);
-        }
     }
 }