Config Console Tests (#5621)

* Config Console Tests
- `MultiUseConsole` is now a testable console
- `ConsoleTest` is a abstract TestClass for console tests
- `ConfigConsoleTest` tests the config console commands

* disable preserve global state because of smarty

* fixed requires & basepath für Console Test

tests/Util/Intercept.php

@@ -0,0 +1,45 @@
+<?php
+
+namespace Friendica\Test\Util;
+
+use php_user_filter;
+
+/**
+ * Output Interceptor for STDOUT to prevent outputing to the console
+ * Instead the $cache variable will get filled with the output
+ *
+ * @package Friendica\Test\Util
+ */
+class Intercept extends php_user_filter
+{
+	/**
+	 * @var string The cache which holds the current output of STDOUT
+	 */
+	public static $cache = '';
+
+	public function filter($in, $out, &$consumed, $closing)
+	{
+		while ($bucket = stream_bucket_make_writeable($in)) {
+			self::$cache .= $bucket->data;
+			$consumed += $bucket->datalen;
+			stream_bucket_append($out, $bucket);
+		}
+		return PSFS_FEED_ME;
+	}
+
+	/**
+	 * Registers the interceptor and prevents therefore the output to STDOUT
+	 */
+	public static function setUp() {
+		stream_filter_register("intercept", Intercept::class);
+		stream_filter_append(STDOUT, "intercept");
+		stream_filter_append(STDERR, "intercept");
+	}
+
+	/**
+	 * Resets the cache
+	 */
+	public static function reset() {
+		self::$cache = '';
+	}
+}