diff --git a/test/makefile b/test/makefile
index bc5e50bb..1b3625fb 100755
--- a/test/makefile
+++ b/test/makefile
@@ -24,6 +24,7 @@ exe = 		\
 	test_default	\
 	test_profile	\
 	test_category   \
+	test_prompt	\
 	test_enabled
 
 all     :       $(exe)
diff --git a/test/test_prompt.c b/test/test_prompt.c
new file mode 100644
index 00000000..dd75cf77
--- /dev/null
+++ b/test/test_prompt.c
@@ -0,0 +1,49 @@
+/*
+ * This file is part of the zlog Library.
+ *
+ * Copyright (C) 2020 by Bjoern Riemer <bjoern.c3@nixda.biz>
+ *
+ * Licensed under the LGPL v2.1, see the file COPYING in base directory.
+ */
+#include <stdio.h>
+#include "zlog.h"
+#include <unistd.h>
+
+int main(int argc, char** argv)
+{
+	int rc;
+	zlog_category_t *zc,*pzc;
+
+	rc = zlog_init("test_prompt.conf");
+	if (rc) {
+		printf("init failed\n");
+		return -1;
+	}
+
+	zc = zlog_get_category("my_cat");
+	pzc = zlog_get_category("prompt");
+	if (!zc || !pzc) {
+		printf("get cat fail\n");
+		zlog_fini();
+		return -2;
+	}
+
+	zlog_debug(zc, "%s%d", "hello, zlog ", 1);
+	zlog_info(zc, "hello, zlog 2");
+
+	for (int i =0; i<15;i++){
+		zlog_info(pzc, "prompt>");
+		sleep(1);
+		if (! (i%3))
+			zlog_debug(zc, "dummy log entry %d",i);
+		if (! (i%5))
+			zlog_info(zc, "hello, zlog %d",i);
+	}
+	zlog_info(zc, "done");
+
+//	zlog_profile();
+
+	zlog_fini();
+
+	return 0;
+}
diff --git a/test/test_prompt.conf b/test/test_prompt.conf
new file mode 100644
index 00000000..88d612c3
--- /dev/null
+++ b/test/test_prompt.conf
@@ -0,0 +1,12 @@
+[global]
+strict init = true
+buffer min = 1024
+buffer max = 0
+
+[formats]
+simple	= "%r%d %V %m%n"
+prompt	= "%r%d(%T)>%m"
+
+[rules	]
+!.*			>stdout;simple
+prompt.*	>stdout;prompt