Index: test/rules.c
--- test/rules.c.orig
+++ test/rules.c
@@ -41,7 +41,7 @@ TEST test_pattern_match(void) {
                 ASSERT(rule_field_matches_string("ffffasd", ".*asd"));
 
                 // Substring matching
-                ASSERT(rule_field_matches_string("asd", ""));
+                ASSERT_FALSE(rule_field_matches_string("asd", ""));
                 ASSERT(rule_field_matches_string("asd", "sd"));
                 ASSERT(rule_field_matches_string("asd", "a"));
                 ASSERT(rule_field_matches_string("asd", "d"));
@@ -54,7 +54,7 @@ TEST test_pattern_match(void) {
                 ASSERT_FALSE(rule_field_matches_string("azd", "asd|dfg|ghj"));
 
                 // Special characters
-                ASSERT_FALSE(rule_field_matches_string("{", "{"));
+                ASSERT(rule_field_matches_string("{", "{"));
                 ASSERT(rule_field_matches_string("{", "\\{"));
                 ASSERT(rule_field_matches_string("a", "(a)"));
         } else {