Updated readme and test

Author: robgridley

README.md

@@ -7,7 +7,7 @@ use Icewind\SMB\ServerFactory;
 use League\Flysystem\Filesystem;
 use RobGridley\Flysystem\Smb\SmbAdapter;
 
-$factory = new ServerFactory;
+$factory = new ServerFactory();
 $auth = new BasicAuth('username', 'domain/workgroup', 'password');
 $server = $factory->createServer('host', $auth);
 $share = $server->getShare('name');
@@ -19,3 +19,6 @@ $filesystem = new Filesystem(new SmbAdapter($share));
 ```
 $ composer require robgridley/flysystem-smb
 ```
+
+## Note
+This adapter does not support visibility. Calls to `visibility()` or `setVisibility()` throw exceptions and setting visibility via writes, moves, etc. is ignored.

tests/SmbAdapterTest.php

@@ -28,12 +28,14 @@ protected static function createFilesystemAdapter(): FilesystemAdapter
      */
     public function setting_visibility(): void
     {
-        $adapter = $this->adapter();
-        $this->givenWeHaveAnExistingFile('some/file.txt');
+        $this->runScenario(function () {
+            $adapter = $this->adapter();
+            $this->givenWeHaveAnExistingFile('path.txt', 'contents', [Config::OPTION_VISIBILITY => Visibility::PUBLIC]);
 
-        $this->expectException(UnableToSetVisibility::class);
+            $this->expectException(UnableToSetVisibility::class);
 
-        $adapter->setVisibility('some/file.txt', Visibility::PRIVATE);
+            $adapter->setVisibility('path.txt', Visibility::PRIVATE);
+        });
     }
 
     /**
@@ -42,10 +44,10 @@ public function setting_visibility(): void
     public function overwriting_a_file(): void
     {
         $this->runScenario(function () {
-            $this->givenWeHaveAnExistingFile('path.txt', 'contents');
+            $this->givenWeHaveAnExistingFile('path.txt', 'contents', ['visibility' => Visibility::PUBLIC]);
             $adapter = $this->adapter();
 
-            $adapter->write('path.txt', 'new contents', new Config());
+            $adapter->write('path.txt', 'new contents', new Config(['visibility' => Visibility::PRIVATE]));
 
             $contents = $adapter->read('path.txt');
             $this->assertEquals('new contents', $contents);
@@ -62,7 +64,7 @@ public function copying_a_file(): void
             $adapter->write(
                 'source.txt',
                 'contents to be copied',
-                new Config()
+                new Config([Config::OPTION_VISIBILITY => Visibility::PUBLIC])
             );
 
             $adapter->copy('source.txt', 'destination.txt', new Config());
@@ -83,7 +85,7 @@ public function copying_a_file_again(): void
             $adapter->write(
                 'source.txt',
                 'contents to be copied',
-                new Config()
+                new Config([Config::OPTION_VISIBILITY => Visibility::PUBLIC])
             );
 
             $adapter->copy('source.txt', 'destination.txt', new Config());
@@ -104,7 +106,7 @@ public function moving_a_file(): void
             $adapter->write(
                 'source.txt',
                 'contents to be copied',
-                new Config()
+                new Config([Config::OPTION_VISIBILITY => Visibility::PUBLIC])
             );
             $adapter->move('source.txt', 'destination.txt', new Config());
             $this->assertFalse(