make default configurations more general and adjust tests accordingly

src/Settings.php

@@ -33,11 +33,11 @@ class Settings implements \Iterator
 	private array $settings = [];
 
 	private string $appPath = './';
-	private ?string $pkgPath = null;
-	private ?string $site = null;
+	private string $pkgPath = './';
+	private string $site;
 
 	protected string $confDir = 'config/';
-	protected string $filePrefix = 'VeruA.';
+	protected string $filePrefix = '';
 	protected string $filePostfix = 'conf.php';
 	protected array $modes = [
 		'prod' => 'default',
@@ -67,8 +67,8 @@ class Settings implements \Iterator
 	 *///}}}
 	public function appPath( string $path )
 	{
+		if ($this->pkgPath === $this->appPath) $this->pkgPath = $path;
 		$this->appPath = $path;
-		if (! isset( $this->pkgPath )) $this->pkgPath = $path;
 		return $this;
 	}// }}}
 
@@ -146,7 +146,7 @@ class Settings implements \Iterator
 			$localConf = false;
 			if (file_exists($conf)) $localConf = require($conf);
 	
-			if ( $this->site )
+			if ( isset($this->site) )
 			{
 				$siteConf = $this->buildFileName(self::SITE);
 				if (file_exists($siteConf))

tests/SettingsTest.php

@@ -51,10 +51,10 @@ class SettingsTest extends TestCase
 	public function testBuildFileName()
 	{
 		$path = './config/';
-		$prefix = 'VeruA';
+		$prefix = '';
 		$postfix = 'conf.php';
 		$type = '';
-		$defaultName = "$path$prefix.$type$postfix";
+		$defaultName = "$path$prefix$type$postfix";
 		
 		$cfg = new Settings();
 		
@@ -63,5 +63,5 @@ class SettingsTest extends TestCase
 }
 
 /* jEdit buffer local properties {{{
-  * :folding=explicit:collapseFolds=1:
+ * :folding=explicit:collapseFolds=1:
 }}}*/