[11.x] Allow MultipleInstanceManager to have studly creators (#52030)

* allow for creating a studly driver creator

* take out of else and decrease indentation

* remove formatting change

* Update MultipleInstanceManager.php

---------

Co-authored-by: Taylor Otwell <[email protected]>

Author: cosmastech

src/Illuminate/Support/MultipleInstanceManager.php

@@ -115,16 +115,25 @@ protected function resolve($name)
             throw new RuntimeException("Instance [{$name}] does not specify a {$this->driverKey}.");
         }
 
-        if (isset($this->customCreators[$config[$this->driverKey]])) {
+        $driverName = $config[$this->driverKey];
+
+        if (isset($this->customCreators[$driverName])) {
             return $this->callCustomCreator($config);
         } else {
-            $createMethod = 'create'.ucfirst($config[$this->driverKey]).ucfirst($this->driverKey);
+            $createMethod = 'create'.ucfirst($driverName).ucfirst($this->driverKey);
+
+            if (method_exists($this, $createMethod)) {
+                return $this->{$createMethod}($config);
+
+            }
+
+            $createMethod = 'create'.Str::studly($driverName).ucfirst($this->driverKey);
 
             if (method_exists($this, $createMethod)) {
                 return $this->{$createMethod}($config);
-            } else {
-                throw new InvalidArgumentException("Instance {$this->driverKey} [{$config[$this->driverKey]}] is not supported.");
             }
+
+            throw new InvalidArgumentException("Instance {$this->driverKey} [{$config[$this->driverKey]}] is not supported.");
         }
     }
 

tests/Integration/Support/Fixtures/MultipleInstanceManager.php

@@ -34,6 +34,15 @@ public function __construct($config)
         };
     }
 
+    protected function createMysqlDatabaseConnectionDriver(array $config) {
+        return new class($config)
+        {
+            public function __construct(public $config)
+            {
+            }
+        };
+    }
+
     /**
      * Get the default instance name.
      *
@@ -74,6 +83,11 @@ public function getInstanceConfig($name)
                     'driver' => 'bar',
                     'bar-option' => 'option-value',
                 ];
+            case 'mysql_database-connection':
+                return [
+                    'driver' => 'mysql_database-connection',
+                    'mysql_database-connection-option' => 'option-value'
+                ];
             default:
                 return [];
         }

tests/Integration/Support/MultipleInstanceManagerTest.php

@@ -18,10 +18,15 @@ public function test_configurable_instances_can_be_resolved()
         $barInstance = $manager->instance('bar');
         $this->assertSame('option-value', $barInstance->config['bar-option']);
 
+        $mysqlInstance = $manager->instance('mysql_database-connection');
+        $this->assertSame('option-value', $mysqlInstance->config['mysql_database-connection-option']);
+
         $duplicateFooInstance = $manager->instance('foo');
         $duplicateBarInstance = $manager->instance('bar');
+        $duplicateMysqlInstance = $manager->instance('mysql_database-connection');
         $this->assertEquals(spl_object_hash($fooInstance), spl_object_hash($duplicateFooInstance));
         $this->assertEquals(spl_object_hash($barInstance), spl_object_hash($duplicateBarInstance));
+        $this->assertEquals(spl_object_hash($mysqlInstance), spl_object_hash($duplicateMysqlInstance));
     }
 
     public function test_unresolvable_instances_throw_errors()