diff --git a/t/CMakeLists.txt b/t/CMakeLists.txt
index 146fc99..3010542 100644
--- a/t/CMakeLists.txt
+++ b/t/CMakeLists.txt
@@ -5,11 +5,16 @@ set(SRC_DIR "../src")
 add_executable("t_logfile" "t_logfile.c" "${SRC_DIR}/logfile.c")
 add_executable("t_matches" "t_matches.c" "${SRC_DIR}/matches.c")
 add_executable("t_ipaddr"  "t_ipaddr.c"  "${SRC_DIR}/ipaddr.c" "${SRC_DIR}/matches.c")
-#add_executable("t_rx_posix" "t_rx_posix.c" "${SRC_DIR}/regexps_posix.c"  "${SRC_DIR}/log.c")
 add_executable("t_config_param" "t_config_param.c" "${SRC_DIR}/config.c" "${SRC_DIR}/log.c")
 
+add_executable("t_filter_preg" "t_filters.c" "${SRC_DIR}/filters/preg.c")
+add_executable("t_filter_pcre" "t_filters.c" "${SRC_DIR}/filters/pcre.c")
+target_link_libraries("t_filter_pcre" "pcre")
+
 add_test("tests/f2b_logfile_*" "t_logfile")
 add_test("tests/f2b_matches_*" "t_matches")
 add_test("tests/f2b_ipaddr_*"  "t_ipaddr")
-#add_test("tests/f2b_regex_*"   "t_rx_posix")
 add_test("tests/f2b_config_param*" "t_config_param")
+
+add_test("tests/filter/preg"   "t_filter_preg")
+add_test("tests/filter/pcre"   "t_filter_pcre")
diff --git a/t/t_filters.c b/t/t_filters.c
new file mode 100644
index 0000000..485c0d6
--- /dev/null
+++ b/t/t_filters.c
@@ -0,0 +1,50 @@
+#include "../src/common.h"
+#include "../src/log.h"
+#include "../src/ipaddr.h"
+#include "../src/filters/filter.h"
+
+int main() {
+  cfg_t *filter = NULL;
+  char matchbuf[IPADDR_MAX] = "";
+  bool result = false;
+
+  filter = create("test");
+  assert(filter != NULL);
+
+  result = config(filter, "nonexistent", "yes");
+  assert(result == false);
+
+  result = config(filter, "icase", "yes");
+  assert(result == true);
+
+  result = config(filter, "icase", "no");
+  assert(result == true);
+
+  result = ready(filter);
+  assert(result == false);
+
+  result = append(filter, "host without marker");
+  assert(result == false);
+
+  result = append(filter, "host with marker <HOST>");
+  assert(result == true);
+
+  result = ready(filter);
+  assert(result == true);
+
+  result = match(filter, "host", matchbuf, sizeof(matchbuf));
+  assert(result == false);
+
+  result = match(filter, "host with marker <HOST>", matchbuf, sizeof(matchbuf));
+  assert(result == false);
+
+  result = match(filter, "host with marker 1.2.3.4", matchbuf, sizeof(matchbuf));
+  assert(result == true);
+
+  result = match(filter, "host with marker example.com", matchbuf, sizeof(matchbuf));
+  assert(result == false);
+
+  destroy(filter);
+
+  return 0;
+}
diff --git a/t/t_rx_posix.c b/t/t_rx_posix.c
deleted file mode 100644
index fb7d636..0000000
--- a/t/t_rx_posix.c
+++ /dev/null
@@ -1,22 +0,0 @@
-#include "../src/common.h"
-#include "../src/regexps.h"
-
-int main() {
-  f2b_regex_t *list  = NULL;
-  f2b_regex_t *regex = NULL;
-  char matchbuf[32] = "";
-
-  assert((regex = f2b_regex_create("line without HOST", true)) == NULL);
-  assert((regex = f2b_regex_create("line with <HOST>",  true)) != NULL);
-
-  assert(f2b_regexlist_match(list, "line with 192.168.0.1", matchbuf, sizeof(matchbuf)) == false);
-
-  assert((list = f2b_regexlist_append(list, regex)) != NULL);
-
-  assert(f2b_regexlist_match(list, "line with 192.168.0.1", matchbuf, sizeof(matchbuf)) == true);
-  assert(strncmp(matchbuf, "192.168.0.1", sizeof(matchbuf)) == 0);
-
-  assert((list = f2b_regexlist_destroy(list)) == NULL);
-
-  return 0;
-}