Fix tests

src/Config.php

@@ -94,7 +94,7 @@ protected function getSectionValue(string $name):?string {
 			return null;
 		}
 
-		return $section->get($parts[1]);
+		return $section[$parts[1]];
 	}
 
 	protected function loadIni(string $directoryPath, string $filename):array {

src/ConfigSection.php

@@ -12,7 +12,7 @@ public function __construct(array $data) {
 		$this->data = $data;
 	}
 
-	public function get(string $key):?array {
+	public function get(string $key):?string {
 		return $this->data[$key] ?? null;
 	}
 
@@ -63,7 +63,7 @@ public function offsetExists($offset):bool {
 	/**
 	 * @link http://php.net/manual/en/arrayaccess.offsetget.php
 	 */
-	public function offsetGet($offset):?array {
+	public function offsetGet($offset):?string {
 		return $this->get($offset);
 	}
 

test/unit/ConfigSectionTest.php

@@ -42,9 +42,9 @@ public function testOffsetNotExists():void {
 	}
 
 	public function testOffsetGet():void {
-		$section = new ConfigSection(self::DATA);
+		$section = new ConfigSection(self::DATA["app"]);
 
-		foreach(self::DATA as $key => $value) {
+		foreach(self::DATA["app"] as $key => $value) {
 			self::assertArrayHasKey($key, $section);
 			self::assertEquals($value, $section[$key]);
 		}